/* ==========================================================================
   MESSAGE YARD — DESIGN SYSTEM v4.0
   Logo-Derived · Dark-First · 135° Gradient Spectrum · Unified Dark Palette
   ========================================================================== */

:root {
  /* ── Brand Gradient (Strict 135° Diagonal) ─────────────────── */
  --gradient-brand: linear-gradient(135deg, #29BBF0 0%, #3B82F6 50%, #7C64F6 100%);
  --gradient-brand-subtle: linear-gradient(135deg, rgba(41,187,240,0.12) 0%, rgba(59,130,246,0.12) 50%, rgba(124,100,246,0.12) 100%);

  /* ── Spectrum Colors (Solid & Dimmed) ───────────────────────── */
  --cyan:        #29BBF0;   /* Ingress, inbound, receiving */
  --cyan-dim:    #1E96C4;   /* Pressed / active */
  --blue:        #3B82F6;   /* Primary action, core brand */
  --blue-dim:    #2E6BD4;   /* Pressed / active */
  --violet:      #7C64F6;   /* Dispatch, outbound, AI */
  --violet-dim:  #6450D0;   /* Pressed / active */

  /* ── Spectrum Tints ────────────────────────────────────────── */
  --cyan-a08:    rgba(41, 187, 240, 0.08);
  --cyan-a16:    rgba(41, 187, 240, 0.16);
  --blue-a08:    rgba(59, 130, 246, 0.08);
  --blue-a16:    rgba(59, 130, 246, 0.16);
  --blue-a24:    rgba(59, 130, 246, 0.24);
  --violet-a08:  rgba(124, 100, 246, 0.08);
  --violet-a16:  rgba(124, 100, 246, 0.16);

  /* ── Dark Surfaces (Primary Deep-Space Hierarchy) ───────────── */
  --bg-void:        #070B17;   /* Page canvas */
  --bg-base:        #0A0F1E;   /* Alternating section background */
  --bg-surface:     #101728;   /* Cards, panels */
  --bg-elevated:    #162034;   /* Raised cards, hover */
  --bg-overlay:     rgba(16, 23, 40, 0.78); /* Glass nav pill with blur */

  /* ── Precision Borders & Inset Bevels ──────────────────────── */
  --border-subtle:  rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.10);
  --border-strong:  rgba(255, 255, 255, 0.16);
  --border-brand:   rgba(59, 130, 246, 0.32);

  /* ── Typography Colors ─────────────────────────────────────── */
  --text-primary:   #FFFFFF;
  --text-secondary: #9BA5BC;
  --text-tertiary:  #5F6B85;
  --text-disabled:  #3A4459;

  /* ── Semantic Colors ───────────────────────────────────────── */
  --success:  #10B981;
  --warning:  #F59E0B;
  --danger:   #EF4444;
  --whatsapp: #25D366;

  /* ── Glows & Depth Cues ────────────────────────────────────── */
  --glow-cyan:   0 0 40px rgba(41, 187, 240, 0.18);
  --glow-blue:   0 0 40px rgba(59, 130, 246, 0.20);
  --glow-violet: 0 0 40px rgba(124, 100, 246, 0.18);
  --glow-brand:  0 0 32px rgba(59, 130, 246, 0.24), 0 0 64px rgba(124, 100, 246, 0.12);
  --shadow-sm:   0 2px 8px rgba(0, 0, 0, 0.32);
  --shadow-md:   0 8px 24px rgba(0, 0, 0, 0.40);
  --shadow-lg:   0 20px 56px rgba(0, 0, 0, 0.48);
  --shadow-xl:   0 32px 80px rgba(0, 0, 0, 0.56);

  /* ── Strict Typographic Scale & Rhythm (DESIGN.md v4.0) ─────── */
  --font-display: "Plus Jakarta Sans", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    "JetBrains Mono", SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Font Sizes */
  --text-display: clamp(44px, 5.5vw, 76px); /* Hero H1 */
  --text-h2:      clamp(32px, 3.8vw, 52px); /* Section H2 */
  --text-h3:      22px;                     /* Card Titles */
  --text-h4:      18px;                     /* Subheadings / Nav Brand */
  --text-body-lg: 18px;                     /* Hero subheads, section intros */
  --text-body:    15px;                     /* Body copy, general UI */
  --text-body-sm: 14px;                     /* Secondary text, links, table cells */
  --text-caption: 13px;                     /* Captions, roles, form helpers */
  --text-mono-sm: 12px;                     /* Eyebrows, tags, code snippets */
  --text-mono-xs: 11px;                     /* Badges, telemetry tickers, window bar */

  /* Leading / Line Heights */
  --leading-none:    1.00;
  --leading-tight:   1.05;  /* Hero Display (1.05) */
  --leading-heading: 1.15;  /* Section H2 (1.15) */
  --leading-snug:    1.30;  /* Card Titles H3 (1.30) */
  --leading-ui:      1.40;  /* Nav links, buttons, inputs (1.40) */
  --leading-caption: 1.50;  /* Captions (1.50) */
  --leading-body-lg: 1.60;  /* Body large (1.60) */
  --leading-body:    1.65;  /* Body regular (1.65) */

  /* Tracking / Letter Spacing */
  --tracking-tightest: -0.035em; /* Hero display */
  --tracking-tighter:  -0.030em; /* Section H2 */
  --tracking-tight:    -0.020em; /* Card titles H3 */
  --tracking-snug:     -0.010em; /* Body large / buttons */
  --tracking-normal:    0.000em; /* Body text */
  --tracking-wide:      0.040em; /* Tags / Code */
  --tracking-widest:    0.080em; /* Monospace badges, telemetry, eyebrows */

  /* ── Radii (Derived from 22% Tile Ratio) ───────────────────── */
  --radius-xs:    6px;
  --radius-sm:    10px;
  --radius-md:    14px;
  --radius-lg:    20px;
  --radius-xl:    24px;
  --radius-pill:  999px;

  /* ── Spacing Scale ─────────────────────────────────────────── */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  24px;
  --space-6:  32px;
  --space-8:  48px;
  --space-10: 64px;
  --space-12: 80px;
  --space-16: 120px;
  --space-20: 140px;

  --container-max:  1200px;
  --container-wide: 1360px;

  /* ── Motion & Durations (Subtle 200–300ms, Zero Bounce) ───── */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.25, 0.1, 0.25, 1);

  --dur-micro:   150ms;
  --dur-fast:    200ms;
  --dur-normal:  250ms;
  --dur-reveal:  280ms;
}

/* ── Light Theme Palette (Secondary Experience) ─────────────── */
:root[data-theme="light"] {
  --bg-void:        #F8FAFC;   /* Crisp modern page canvas */
  --bg-base:        #F1F5F9;   /* Alternating section background */
  --bg-surface:     #FFFFFF;   /* Cards, panels, elevated surfaces */
  --bg-elevated:    #F8FAFC;   /* Raised cards, hover states */
  --bg-overlay:     rgba(255, 255, 255, 0.85); /* Frosted glass nav bar */

  --border-subtle:  rgba(15, 23, 42, 0.07);
  --border-default: rgba(15, 23, 42, 0.12);
  --border-strong:  rgba(15, 23, 42, 0.22);
  --border-brand:   rgba(59, 130, 246, 0.40);

  --text-primary:   #0A0F1E;
  --text-secondary: #475569;
  --text-tertiary:  #64748B;
  --text-disabled:  #94A3B8;

  --glow-cyan:   0 4px 24px rgba(41, 187, 240, 0.16);
  --glow-blue:   0 4px 24px rgba(59, 130, 246, 0.18);
  --glow-violet: 0 4px 24px rgba(124, 100, 246, 0.16);
  --glow-brand:  0 4px 24px rgba(59, 130, 246, 0.22), 0 8px 32px rgba(124, 100, 246, 0.12);
  
  --shadow-sm:   0 1px 3px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md:   0 4px 16px rgba(15, 23, 42, 0.07), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg:   0 12px 32px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(15, 23, 42, 0.04);
  --shadow-xl:   0 20px 48px rgba(15, 23, 42, 0.10), 0 8px 24px rgba(15, 23, 42, 0.06);
}

/* ==========================================================================
   Base Reset
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background-color: var(--bg-void);
  color: var(--text-primary);
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-normal);
  color: var(--text-secondary);
  background-color: var(--bg-void);
  overflow-x: hidden;
  position: relative;
}

::selection {
  background: var(--blue-a24);
  color: var(--text-primary);
}

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

ul, ol {
  list-style: none;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 24px;
  background: var(--bg-surface);
  color: var(--text-primary);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-md);
  font-family: var(--font-body);
  font-size: var(--text-body-sm);
  font-weight: 500;
  line-height: var(--leading-ui);
  letter-spacing: var(--tracking-snug);
  z-index: 9999;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus {
  top: 24px;
}

/* ==========================================================================
   Background System (Dot Grid + Organic Radial Mask)
   ========================================================================== */

.bg-grid {
  position: fixed;
  inset: 0;
  background-color: var(--bg-void);
  background-image: radial-gradient(
    circle at 1px 1px,
    rgba(255, 255, 255, 0.05) 1px,
    transparent 0
  );
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.20;
  pointer-events: none;
  z-index: 0;
  animation: orbDrift 24s ease-in-out infinite alternate;
  will-change: transform;
}

.orb--cyan {
  background: #29BBF0;
  width: 520px;
  height: 520px;
}

.orb--blue {
  background: #3B82F6;
  width: 640px;
  height: 640px;
}

.orb--violet {
  background: #7C64F6;
  width: 480px;
  height: 480px;
}

@keyframes orbDrift {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(30px, -40px) scale(1.06); }
  100% { transform: translate(-30px, 30px) scale(0.95); }
}

/* ==========================================================================
   Layout Containers & Section Layouts
   ========================================================================== */

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.container-wide {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: var(--space-20) 0;
  position: relative;
  z-index: 1;
}

.section--dark {
  background-color: var(--bg-void);
  color: var(--text-primary);
}

.section--base {
  background-color: var(--bg-base);
  color: var(--text-primary);
}

/* ==========================================================================
   Typography System
   ========================================================================== */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text-primary);
}

.h1-hero, h1 {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 700;
  letter-spacing: var(--tracking-tightest);
  line-height: var(--leading-tight);
  text-wrap: balance;
  margin-bottom: var(--space-5);
}

.section-heading, h2 {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: 600;
  letter-spacing: var(--tracking-tighter);
  line-height: var(--leading-heading);
  text-wrap: balance;
  margin-bottom: var(--space-4);
}

.card-title, h3 {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-snug);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.body-large, .hero-subhead, .section-subhead {
  font-family: var(--font-body);
  font-size: var(--text-body-lg);
  font-weight: 400;
  line-height: var(--leading-body-lg);
  letter-spacing: var(--tracking-snug);
  color: var(--text-secondary);
}

.body-regular, p {
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 400;
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-normal);
  color: var(--text-secondary);
}

.caption-text {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 400;
  line-height: var(--leading-caption);
  letter-spacing: var(--tracking-normal);
  color: var(--text-tertiary);
}

.telemetry-text {
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.4;
}

/* Signature Gradient Word Technique (Strict 135°, Single word/phrase per heading) */
.gradient-word {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% 100%;
  display: inline-block;
}

.shimmer-active {
  animation: gradientShimmer 1000ms var(--ease-out) forwards;
}

@keyframes gradientShimmer {
  0%   { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

.section-header-center {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--space-12) auto;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--cyan);
  line-height: 1.3;
  margin-bottom: var(--space-3);
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  display: inline-block;
  box-shadow: 0 0 8px var(--cyan);
}

/* ==========================================================================
   Atomic Components
   ========================================================================== */

/* ── 1. The Tile (Logo-derived 48px atomic unit, 14px radius) ───────── */
.tile {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--gradient-brand);
  display: grid;
  place-items: center;
  color: #FFFFFF;
  flex-shrink: 0;
  transition: transform var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out);
}

.tile svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
}

.tile--outline {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
}

.tile--glow {
  background: var(--gradient-brand);
  box-shadow: var(--glow-brand);
}

.tile--sm {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
}
.tile--sm svg {
  width: 18px;
  height: 18px;
}

.tile--lg {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
}
.tile--lg svg {
  width: 28px;
  height: 28px;
}

/* ── 2. Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 500;
  line-height: var(--leading-ui);
  letter-spacing: var(--tracking-snug);
  border-radius: var(--radius-pill);
  padding: 12px 24px;
  cursor: pointer;
  border: none;
  outline: none;
  position: relative;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              filter var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}

/* Primary Button with Brand Gradient Fill */
.btn-primary {
  background: var(--gradient-brand);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.28);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-brand);
  filter: brightness(1.06);
}
.btn-primary:active {
  transform: translateY(0);
  filter: brightness(0.96);
}

/* Secondary Glass Button */
.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-default);
  color: var(--text-primary);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.btn-secondary:active {
  transform: translateY(0);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 12px 16px;
  transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.btn-sm {
  padding: 8px 16px;
  font-size: var(--text-caption);
  line-height: 1.3;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  line-height: 1.4;
}

/* ── 3. Cards & Hover Gradient Top-Hairlines ────────────────────────── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform var(--dur-normal) var(--ease-out),
              background var(--dur-normal) var(--ease-out),
              border-color var(--dur-normal) var(--ease-out),
              box-shadow var(--dur-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--dur-normal) var(--ease-out);
}

.card:hover {
  background: var(--bg-elevated);
  border-color: var(--border-default);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.card:hover::before {
  opacity: 1;
}

/* Featured Card with Gradient Border Mask Technique */
.card--featured {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--bg-surface), var(--bg-surface)) padding-box,
    var(--gradient-brand) border-box;
  box-shadow: var(--glow-brand);
  transition: transform var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out);
}
.card--featured:hover {
  background:
    linear-gradient(var(--bg-elevated), var(--bg-elevated)) padding-box,
    var(--gradient-brand) border-box;
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(59, 130, 246, 0.20);
}

/* ── 4. Badges & Status Dots ────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.3;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.badge--active {
  background: rgba(16, 185, 129, 0.12);
  color: #34D399;
}
.badge--active .badge-dot {
  background: #10B981;
  animation: signalPulse 2s infinite;
}

.badge--dispatch {
  background: var(--violet-a16);
  color: #A78BFA;
}
.badge--dispatch .badge-dot {
  background: var(--violet);
}

.badge--branch {
  background: var(--blue-a16);
  color: #60A5FA;
}
.badge--branch .badge-dot {
  background: var(--blue);
}

.badge--ingress {
  background: var(--cyan-a16);
  color: #67D9F5;
}
.badge--ingress .badge-dot {
  background: var(--cyan);
}

.badge--queued {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-tertiary);
}
.badge--queued .badge-dot {
  background: var(--text-tertiary);
}

@keyframes signalPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.45); }
  50%      { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
}

/* ── 5. Bubble Frame (Conversational Speech-Bubble Container) ────────── */
.bubble-frame {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  position: relative;
  background: var(--bg-surface);
}

.bubble-frame--tail::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 32px;
  width: 16px;
  height: 16px;
  background: inherit;
  border-left: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
  transform: rotate(-45deg);
}

/* ==========================================================================
   Navigation Pill (Floating Glass Bar with Smart Scroll)
   ========================================================================== */

.nav-container {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  max-width: 1140px;
  width: calc(100% - 32px);
  z-index: 1000;
  transition: padding var(--dur-normal) var(--ease-out), top var(--dur-normal) var(--ease-out);
}

.nav {
  padding: 10px 16px 10px 20px;
  border-radius: var(--radius-pill);
  background: var(--bg-overlay);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: padding var(--dur-normal) var(--ease-out),
              border-color var(--dur-normal) var(--ease-out),
              box-shadow var(--dur-normal) var(--ease-out);
}

.nav--scrolled .nav {
  padding: 8px 14px 8px 18px;
  border-color: var(--border-default);
  box-shadow: var(--shadow-md);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: var(--text-h4);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  line-height: 1.2;
  color: var(--text-primary);
}

.nav-brand-icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: var(--text-body-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-snug);
  line-height: var(--leading-ui);
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  transition: color var(--dur-fast) var(--ease-out);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-brand);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--dur-fast) var(--ease-out);
  border-radius: 1px;
}

.nav-link:hover {
  color: var(--text-primary);
}
.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ── Theme Toggle Button ────────────────────────────────────── */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  padding: 0;
  flex-shrink: 0;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}

.theme-toggle-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-strong);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.theme-toggle-btn:active {
  transform: translateY(0) scale(0.95);
}

.theme-toggle-btn:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.theme-toggle-icon {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1),
              opacity 240ms ease;
}

/* Default / Dark Mode */
.theme-toggle-icon--sun {
  opacity: 0;
  transform: rotate(90deg) scale(0.6);
}

.theme-toggle-icon--moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* Light Mode active */
[data-theme="light"] .theme-toggle-icon--sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
  color: #F59E0B;
}

[data-theme="light"] .theme-toggle-icon--moon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.6);
}

/* ── Mobile Menu Toggle Button ──────────────────────────────── */
.mobile-menu-btn {
  display: none;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  color: var(--text-primary);
  cursor: pointer;
  padding: 0;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

[data-theme="light"] .mobile-menu-btn {
  background: rgba(15, 23, 42, 0.04);
  border-color: var(--border-default);
}

.mobile-menu-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-strong);
}

.hamburger-icon {
  width: 20px;
  height: 20px;
  display: block;
}

.hamburger-icon line {
  transform-origin: 12px 12px;
  transition: transform 240ms cubic-bezier(0.16, 1, 0.3, 1),
              opacity 200ms ease;
}

.mobile-menu-btn.active .line-top {
  transform: translateY(5px) rotate(45deg);
}

.mobile-menu-btn.active .line-mid {
  opacity: 0;
}

.mobile-menu-btn.active .line-bot {
  transform: translateY(-5px) rotate(-45deg);
}

/* ── Mobile Navigation Drawer ───────────────────────────────── */
.mobile-nav-drawer {
  display: none;
  margin-top: 10px;
  background: var(--bg-overlay);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-xl);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 250ms cubic-bezier(0.16, 1, 0.3, 1),
              opacity 200ms ease;
}

.mobile-nav-drawer.open {
  display: block;
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-menu {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.mobile-nav-link:hover, .mobile-nav-link:active {
  background: var(--blue-a08);
  color: var(--text-primary);
}

.mobile-nav-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.mobile-btn {
  width: 100%;
  text-align: center;
  justify-content: center;
  padding: 10px 16px;
}

/* ==========================================================================
   Hero Section & Interactive Studio Console
   ========================================================================== */

.section-hero {
  padding: 160px 0 120px 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto 80px auto;
  position: relative;
  z-index: 5;
}

.hero-eyebrow {
  margin-bottom: var(--space-4);
  opacity: 0;
  transform: translateY(10px);
  animation: heroFadeUp 280ms var(--ease-out) 150ms forwards;
}

.hero-title {
  opacity: 0;
  transform: translateY(12px);
  animation: heroFadeUp 280ms var(--ease-out) 250ms forwards;
}

.hero-subhead {
  max-width: 720px;
  margin: 0 auto var(--space-8) auto;
  font-family: var(--font-body);
  font-size: var(--text-body-lg);
  font-weight: 400;
  line-height: var(--leading-body-lg);
  letter-spacing: var(--tracking-snug);
  opacity: 0;
  transform: translateY(10px);
  animation: heroFadeUp 280ms var(--ease-out) 350ms forwards;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: var(--space-5);
  opacity: 0;
  transform: scale(0.98);
  animation: heroFadeUp 280ms var(--ease-out) 450ms forwards;
}

.hero-trust-line {
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-wide);
  line-height: 1.5;
  color: var(--text-tertiary);
  opacity: 0;
  animation: heroFadeUp 280ms var(--ease-out) 550ms forwards;
}

@keyframes heroFadeUp {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ── 6 Floating Channel Tiles & SVG Connectors ──────────────────────── */
.hero-tiles-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.hero-svg-routes {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.section-hero .container {
  position: relative;
  z-index: 3;
}

.route-path {
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 1;
  fill: none;
  stroke-dasharray: 4 6;
}

.route-line-pulse {
  stroke: url(#brandGradient);
  stroke-width: 1.5;
  fill: none;
  stroke-dasharray: 8 300;
  animation: routePulse 3.2s linear infinite;
}

@keyframes routePulse {
  from { stroke-dashoffset: 308; }
  to   { stroke-dashoffset: 0; }
}

.hero-channel-tile {
  position: absolute;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: var(--text-secondary);
  pointer-events: auto;
  cursor: pointer;
  z-index: 2;
  transition: transform var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out), border-color var(--dur-normal) var(--ease-out);
  animation: tileFloat 5s ease-in-out infinite alternate;
}

.hero-channel-tile span {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  line-height: 1.2;
}

.hero-channel-tile svg {
  width: 22px;
  height: 22px;
}

.hero-channel-tile--active {
  background: var(--gradient-brand);
  color: #FFFFFF;
  box-shadow: var(--glow-brand);
  border: none;
}

.hero-tile-1 { left: 5%;  top: 18%; transform: rotateY(14deg); animation-delay: 0s; }
.hero-tile-2 { right: 7%; top: 15%; transform: rotateY(-12deg); animation-delay: 0.7s; }
.hero-tile-3 { left: 10%; top: 50%; transform: rotateY(10deg); animation-delay: 1.4s; }
.hero-tile-4 { right: 5%; top: 46%; transform: rotateY(-16deg); animation-delay: 2.1s; }
.hero-tile-5 { left: 4%;  top: 76%; transform: rotateY(8deg); animation-delay: 2.8s; }
.hero-tile-6 { right: 12%; top: 76%; transform: rotateY(-10deg); animation-delay: 3.5s; }

.hero-channel-tile:hover {
  transform: translateY(-3px) scale(1.03) !important;
  box-shadow: var(--glow-brand);
  border-color: var(--border-brand);
}

@keyframes tileFloat {
  0%   { transform: translateY(0px) rotate(0deg); }
  50%  { transform: translateY(-4px) rotate(1deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

/* ── Studio Console Browser Frame ───────────────────────────────────── */
.studio-console-wrapper {
  perspective: 1800px;
  margin: 0 auto;
  max-width: 1120px;
  width: 100%;
  position: relative;
  z-index: 6;
  opacity: 0;
  transform: translateY(20px) scale(0.97);
  animation: heroFadeUp 280ms var(--ease-out) 650ms forwards;
}

.studio-console {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform-style: preserve-3d;
  transform: rotateX(5deg);
  transition: transform var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out);
}

.studio-console.flattened {
  transform: rotateX(0deg);
}

/* Console Title Bar */
.console-title-bar {
  height: 44px;
  background: rgba(7, 11, 23, 0.6);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.window-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}
.window-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.dot-red    { background: #FF5F57; }
.dot-yellow { background: #FEBC2E; }
.dot-green  { background: #28C840; }

.console-url-pill {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 4px 16px;
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-wide);
  line-height: 1.4;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.console-url-pill svg {
  width: 12px;
  height: 12px;
  stroke: var(--text-tertiary);
}

/* Console Tabs */
.console-tabs-bar {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(16, 23, 40, 0.4);
  padding: 0 20px;
}

.console-tab {
  padding: 14px 20px;
  font-family: var(--font-body);
  font-size: var(--text-body-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-snug);
  line-height: var(--leading-ui);
  color: var(--text-tertiary);
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color var(--dur-fast) var(--ease-out);
}

.console-tab::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-brand);
  transform: scaleX(0);
  transition: transform var(--dur-fast) var(--ease-out);
}

.console-tab:hover {
  color: var(--text-primary);
}

.console-tab.active {
  color: var(--text-primary);
}
.console-tab.active::after {
  transform: scaleX(1);
}

/* Console Tab Contents */
.console-body {
  min-height: 480px;
  background: var(--bg-void);
  position: relative;
  padding: 24px;
}

.console-tab-pane {
  display: none;
  animation: paneCrossFade 200ms var(--ease-out) forwards;
}
.console-tab-pane.active {
  display: block;
}

@keyframes paneCrossFade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Tab 1: Visual Journey Builder Canvas */
.journey-canvas {
  background-color: var(--bg-void);
  background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.06) 1px, transparent 0);
  background-size: 24px 24px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  min-height: 430px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.journey-node {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  width: 230px;
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 2;
  transition: transform var(--dur-normal) var(--ease-out), border-color var(--dur-normal) var(--ease-out);
}
.journey-node:hover {
  transform: translateY(-2px);
  border-color: var(--border-brand);
}

.journey-node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.journey-node-title {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: var(--tracking-snug);
  line-height: 1.3;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.journey-node-desc {
  font-family: var(--font-body);
  font-size: var(--text-mono-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-normal);
  line-height: 1.45;
  color: var(--text-secondary);
}

.journey-node-stat {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  line-height: 1.3;
  color: var(--success);
  display: flex;
  align-items: center;
  gap: 4px;
}

.journey-svg-connections {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* Tab 2: Campaign Composer */
.composer-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  align-items: center;
}

.composer-form {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.composer-input-group {
  margin-bottom: 16px;
}

.composer-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--text-tertiary);
  margin-bottom: 6px;
}

.composer-input {
  width: 100%;
  background: var(--bg-void);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: var(--text-body-sm);
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-primary);
}

.composer-textarea {
  min-height: 110px;
  resize: vertical;
}

.tag-pill {
  display: inline-block;
  background: var(--blue-a16);
  color: #60A5FA;
  padding: 2px 8px;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  line-height: 1.4;
}

.phone-mockup {
  background: #000000;
  border: 2px solid var(--border-strong);
  border-radius: 36px;
  padding: 16px;
  box-shadow: var(--shadow-lg);
  transform: rotateY(-6deg);
  transition: transform var(--dur-normal) var(--ease-out);
}
.phone-mockup:hover {
  transform: rotateY(0deg);
}

.phone-screen {
  background: #0E1626;
  border-radius: 24px;
  padding: 16px;
  min-height: 360px;
}

.whatsapp-chat-bubble {
  background: #005D4B;
  color: #FFFFFF;
  border-radius: 12px 12px 2px 12px;
  padding: 12px;
  font-family: var(--font-body);
  font-size: var(--text-caption);
  line-height: 1.45;
  letter-spacing: var(--tracking-normal);
  margin-bottom: 12px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.chat-bubble-btn {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  padding: 8px;
  text-align: center;
  margin-top: 8px;
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 500;
  line-height: 1.3;
  color: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* Tab 3: Team Inbox */
.inbox-grid {
  display: grid;
  grid-template-columns: 240px 1fr 280px;
  gap: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 420px;
}

.inbox-col {
  border-right: 1px solid var(--border-subtle);
  padding: 16px;
  overflow-y: auto;
}
.inbox-col:last-child {
  border-right: none;
}

.inbox-item {
  padding: 12px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.02);
  margin-bottom: 8px;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.inbox-item.active, .inbox-item:hover {
  background: var(--blue-a08);
  border: 1px solid var(--border-brand);
}

.inbox-chat-thread {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 12px;
  height: 100%;
}

.thread-msg-in {
  align-self: flex-start;
  background: var(--bg-void);
  border: 1px solid var(--border-subtle);
  padding: 10px 14px;
  border-radius: 14px 14px 14px 2px;
  max-width: 80%;
  font-family: var(--font-body);
  font-size: var(--text-caption);
  line-height: 1.45;
  letter-spacing: var(--tracking-normal);
}

.thread-msg-out {
  align-self: flex-end;
  background: var(--gradient-brand);
  color: #FFFFFF;
  padding: 10px 14px;
  border-radius: 14px 14px 2px 14px;
  max-width: 80%;
  font-family: var(--font-body);
  font-size: var(--text-caption);
  line-height: 1.45;
  letter-spacing: var(--tracking-normal);
}

.crm-panel-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-body);
  font-size: var(--text-mono-sm);
  line-height: 1.4;
  letter-spacing: var(--tracking-normal);
  padding: 8px 0;
  border-bottom: 1px solid var(--border-subtle);
}

/* ── Metrics Strip ─────────────────────────────────────────────────── */
.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 64px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  margin-top: 80px;
}

.metric-item {
  text-align: center;
  padding: 0 24px;
  border-right: 1px solid var(--border-subtle);
}
.metric-item:last-child {
  border-right: none;
}

.metric-number {
  font-family: var(--font-display);
  font-size: clamp(32px, 3.4vw, 48px);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tighter);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.4;
  color: var(--text-tertiary);
}

/* ==========================================================================
   Logo Marquee Section (Trust)
   ========================================================================== */

.section-marquee {
  padding: 72px 0;
  background: var(--bg-void);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  overflow: hidden;
}

.marquee-heading {
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.4;
  color: var(--text-tertiary);
  margin-bottom: 32px;
}

.marquee-wrapper {
  display: flex;
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 56px;
  white-space: nowrap;
  animation: marqueeScroll 36s linear infinite;
  will-change: transform;
}

.marquee-wrapper:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-logo-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  line-height: 1.2;
  color: #FFFFFF;
  opacity: 0.35;
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.marquee-logo-item svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.marquee-logo-item:hover {
  opacity: 1;
  transform: scale(1.03);
}

@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ==========================================================================
   Section: Two Products, One Platform
   ========================================================================== */

.two-products-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  position: relative;
  perspective: 1200px;
}

.product-split-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform-style: preserve-3d;
  transition: transform var(--dur-normal) var(--ease-out), border-color var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out);
}

.product-split-card--left {
  transform: rotateY(3deg);
}
.product-split-card--right {
  transform: rotateY(-3deg);
}
.product-split-card:hover {
  transform: rotateY(0deg) translateY(-3px);
  border-color: var(--border-default);
  box-shadow: var(--shadow-lg);
}

.split-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.split-card-preview {
  margin: 28px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #080D1A;
}

.terminal-box {
  background: #050811;
  padding: 18px;
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.6;
  letter-spacing: var(--tracking-normal);
}

.product-connector-bridge {
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 140px;
  height: 2px;
  background: var(--gradient-brand);
  box-shadow: var(--glow-brand);
  border-radius: 1px;
}

/* ==========================================================================
   Section: Platform at a Glance (6 Pillars 3×2 Grid)
   ========================================================================== */

.six-pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  perspective: 1200px;
}

.pillar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
  transition: transform var(--dur-normal) var(--ease-out), background var(--dur-normal) var(--ease-out), border-color var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out);
}

.pillar-watermark {
  position: absolute;
  top: 14px;
  right: 20px;
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 800;
  line-height: var(--leading-none);
  letter-spacing: var(--tracking-tightest);
  color: rgba(255, 255, 255, 0.03);
  pointer-events: none;
  user-select: none;
}

.pillar-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.pillar-card:hover {
  background: var(--bg-elevated);
  border-color: var(--border-default);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.pillar-card:hover::before {
  opacity: 1;
}

.pillar-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: var(--text-body-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-snug);
  line-height: var(--leading-ui);
  color: var(--cyan);
  margin-top: 20px;
  transition: transform var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.pillar-card:hover .pillar-link {
  transform: translateX(3px);
}

/* Stepped Spectrum Colors for Cards 01 to 06 */
.step-tile-1 { background: #29BBF0; }
.step-tile-2 { background: #349DF3; }
.step-tile-3 { background: #3B82F6; }
.step-tile-4 { background: #4C7AF6; }
.step-tile-5 { background: #6470F6; }
.step-tile-6 { background: #7C64F6; }

/* ==========================================================================
   Section: Why MessageYard (Argument + Live Telemetry)
   ========================================================================== */

.why-my-layout {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 64px;
  align-items: center;
}

.argument-checklist {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.argument-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 400;
  color: var(--text-primary);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-normal);
}

.check-icon-tile {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-xs);
  background: var(--gradient-brand);
  color: #FFFFFF;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.check-icon-tile svg {
  width: 16px;
  height: 16px;
  stroke-width: 3;
}

/* Telemetry Dashboard */
.telemetry-wrapper {
  perspective: 1200px;
}

.telemetry-dashboard {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-xl);
  transform: rotateY(-7deg);
  transition: transform var(--dur-normal) var(--ease-out);
}
.telemetry-dashboard:hover {
  transform: rotateY(-2deg);
}

.telemetry-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 24px;
}

.telemetry-grid-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.telemetry-stat-card {
  background: var(--bg-void);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
}

.throughput-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 90px;
  margin-top: 16px;
  padding: 10px 0;
}

.tp-bar {
  flex: 1;
  background: var(--blue-a24);
  border-radius: 3px;
  height: 20%;
  transition: height 250ms var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.tp-bar.active {
  background: var(--gradient-brand);
}

.sparkline-container {
  height: 70px;
  width: 100%;
  margin-top: 14px;
}

.sparkline-svg {
  width: 100%;
  height: 100%;
}
.sparkline-line {
  stroke: url(#brandGradient);
  stroke-width: 2;
  fill: none;
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: drawSparkline 1.2s var(--ease-out) forwards 0.2s;
}

@keyframes drawSparkline {
  to { stroke-dashoffset: 0; }
}

/* ==========================================================================
   Section: Industry Solutions
   ========================================================================== */

.industry-solutions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.industry-photo-card {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out);
}

.industry-photo-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9);
  transition: transform var(--dur-normal) var(--ease-out), filter var(--dur-fast) var(--ease-out);
}

.industry-photo-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.industry-photo-card:hover img {
  transform: scale(1.03);
  filter: saturate(1.04);
}

.industry-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 35%, rgba(7, 11, 23, 0.92) 100%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px;
  z-index: 2;
}

.industry-badge-chip {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.3;
}

.industry-card-content {
  color: #FFFFFF;
}

.industry-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-snug);
  color: #FFFFFF;
  margin-bottom: 6px;
}

.industry-desc {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 400;
  line-height: var(--leading-caption);
  letter-spacing: var(--tracking-normal);
  color: rgba(255, 255, 255, 0.85);
}

/* ==========================================================================
   Section: Customer Proof (Bubble-Frame Testimonials)
   ========================================================================== */

.customer-proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 72px;
}

.testimonial-card {
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 300px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  transition: transform var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out), border-color var(--dur-normal) var(--ease-out);
}
.testimonial-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-brand);
  box-shadow: var(--shadow-md);
}

.testimonial-quote {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  color: var(--text-primary);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-normal);
  margin-bottom: 28px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar-wrap {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  padding: 2px;
  background: var(--gradient-brand);
  flex-shrink: 0;
}
.author-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-surface);
}

.author-name {
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: var(--tracking-snug);
  color: var(--text-primary);
}

.author-role {
  font-family: var(--font-body);
  font-size: var(--text-mono-sm);
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: var(--tracking-normal);
  color: var(--text-tertiary);
}

/* Compliance Badges Row */
.compliance-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 40px 0 0 0;
  margin-top: 32px;
  border-top: 1px solid var(--border-subtle);
}

.compliance-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.4;
  color: var(--text-secondary);
  transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.compliance-badge:hover {
  border-color: var(--border-brand);
  color: var(--text-primary);
}

/* ==========================================================================
   Section: Pricing (Unified Dark Mode)
   ========================================================================== */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: center;
  margin-bottom: 72px;
}

.pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px;
  position: relative;
  transition: transform var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out), border-color var(--dur-normal) var(--ease-out);
}
.pricing-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-default);
  box-shadow: var(--shadow-md);
}

/* Growth Tier - Featured & Elevated */
.pricing-card--featured {
  border: 2px solid transparent;
  background:
    linear-gradient(var(--bg-surface), var(--bg-surface)) padding-box,
    var(--gradient-brand) border-box;
  transform: translateY(-12px);
  box-shadow: var(--glow-brand);
  transition: transform var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out);
}
.pricing-card--featured:hover {
  background:
    linear-gradient(var(--bg-elevated), var(--bg-elevated)) padding-box,
    var(--gradient-brand) border-box;
  transform: translateY(-14px);
  box-shadow: 0 20px 60px rgba(59, 130, 246, 0.24);
}

.popular-chip {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-brand);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.3;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
}

.pricing-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-snug);
  color: var(--text-primary);
  margin-bottom: 8px;
}

.pricing-amount {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 800;
  letter-spacing: var(--tracking-tighter);
  line-height: var(--leading-tight);
  color: var(--text-primary);
  margin: 20px 0;
}
.pricing-amount span {
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 400;
  letter-spacing: var(--tracking-normal);
  color: var(--text-tertiary);
}

.pricing-features-list {
  margin: 28px 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pricing-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: var(--text-body-sm);
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: var(--tracking-normal);
  color: var(--text-secondary);
}

.feature-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--blue-a16);
  color: var(--blue);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.feature-check svg {
  width: 12px;
  height: 12px;
  stroke-width: 3;
}

/* Comparison Table (Collapsible) */
.comparison-table-wrap {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}

.table-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: var(--text-h4);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  line-height: 1.3;
  color: var(--text-primary);
  padding: 8px 0;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
  font-size: var(--text-body-sm);
}

.comparison-table th {
  font-family: var(--font-display);
  font-size: var(--text-body-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-snug);
  line-height: 1.4;
  padding: 14px 18px;
  text-align: left;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-default);
}

.comparison-table td {
  font-family: var(--font-body);
  font-size: var(--text-body-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-normal);
  line-height: 1.5;
  padding: 14px 18px;
  text-align: left;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table tr:hover td {
  background: var(--blue-a08);
  color: var(--text-primary);
}

/* ==========================================================================
   Section: Contact & Leadership (Return to Dark)
   ========================================================================== */

.leadership-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 120px;
}

.leader-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: transform var(--dur-normal) var(--ease-out), border-color var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out);
}
.leader-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-brand);
  box-shadow: var(--shadow-md);
}

.leader-photo-wrap {
  width: 110px;
  height: 110px;
  margin: 0 auto 20px auto;
  border-radius: 50%;
  padding: 3px;
  background: var(--border-default);
  transition: background var(--dur-normal) var(--ease-out), transform var(--dur-normal) var(--ease-out);
}
.leader-card:hover .leader-photo-wrap {
  background: var(--gradient-brand);
  transform: scale(1.02);
}

.leader-photo {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter var(--dur-normal) var(--ease-out);
}
.leader-card:hover .leader-photo {
  filter: grayscale(0%);
}

.leader-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.leader-role {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: var(--tracking-normal);
  color: var(--text-tertiary);
}

/* Contact 2-Column Split */
.contact-split-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 56px;
}

.contact-routes {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-route-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 18px;
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
  position: relative;
  overflow: hidden;
}
.contact-route-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.contact-route-card:hover {
  transform: translateX(3px);
  background: var(--bg-elevated);
  border-color: var(--border-default);
}
.contact-route-card:hover::before {
  opacity: 1;
}

.route-email {
  font-family: var(--font-mono);
  font-size: var(--text-body-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.contact-form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}

.form-input, .form-textarea {
  width: 100%;
  background: var(--bg-void);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: var(--tracking-normal);
  color: var(--text-primary);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.form-input:focus, .form-textarea:focus {
  border-color: var(--blue);
  box-shadow: var(--glow-blue);
  outline: none;
}

/* ==========================================================================
   Footer & Live Dispatch Counter
   ========================================================================== */

.site-footer {
  background: var(--bg-void);
  border-top: 1px solid transparent;
  background:
    linear-gradient(var(--bg-void), var(--bg-void)) padding-box,
    var(--gradient-brand) border-box;
  padding: 100px 0 48px 0;
  position: relative;
  overflow: hidden;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 72px;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--text-tertiary);
  margin-bottom: 18px;
}

.footer-link-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-link {
  font-family: var(--font-body);
  font-size: var(--text-body-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-snug);
  line-height: 1.5;
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
  display: inline-block;
}
.footer-link:hover {
  color: var(--text-primary);
  transform: translateX(2px);
}

.footer-bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 36px;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 400;
  letter-spacing: var(--tracking-normal);
  line-height: 1.5;
  color: var(--text-tertiary);
  flex-wrap: wrap;
  gap: 16px;
}

.live-dispatch-ticker {
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  line-height: 1.4;
  color: var(--text-disabled);
  display: flex;
  align-items: center;
  gap: 8px;
}

.live-dispatch-count {
  color: var(--cyan);
  font-weight: 600;
}

/* Floating Back-To-Top Pill */
.back-to-top-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #FFFFFF;
  display: grid;
  place-items: center;
  box-shadow: var(--glow-brand);
  border: none;
  cursor: pointer;
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), filter var(--dur-fast) var(--ease-out);
}
.back-to-top-btn.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top-btn:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
}

/* ==========================================================================
   Animation Utility Classes (IntersectionObserver)
   ========================================================================== */

.reveal-fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-fade-lateral-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-fade-lateral-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-scale-in {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.revealed {
  opacity: 1 !important;
  transform: translate(0, 0) scale(1) !important;
}

/* Stagger helper - 80ms interval, 600ms smooth entrance */
.stagger-group > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 550ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 550ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.stagger-group.revealed > * {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

.stagger-group.revealed > *:nth-child(1) { transition-delay: 0ms; }
.stagger-group.revealed > *:nth-child(2) { transition-delay: 80ms; }
.stagger-group.revealed > *:nth-child(3) { transition-delay: 160ms; }
.stagger-group.revealed > *:nth-child(4) { transition-delay: 240ms; }
.stagger-group.revealed > *:nth-child(5) { transition-delay: 320ms; }
.stagger-group.revealed > *:nth-child(6) { transition-delay: 400ms; }
.stagger-group.revealed > *:nth-child(7) { transition-delay: 480ms; }
.stagger-group.revealed > *:nth-child(8) { transition-delay: 560ms; }

/* ==========================================================================
   Light Mode Theme Overrides
   ========================================================================== */

[data-theme="light"] {
  color-scheme: light;
}

[data-theme="light"] .bg-grid {
  background-image: radial-gradient(
    circle at 1px 1px,
    rgba(15, 23, 42, 0.08) 1px,
    transparent 0
  );
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 50%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 50%, transparent 100%);
}

[data-theme="light"] .glow-orb {
  opacity: 0.12;
}

[data-theme="light"] .btn-secondary {
  background: rgba(15, 23, 42, 0.04);
  border-color: var(--border-default);
  color: var(--text-primary);
}

[data-theme="light"] .btn-secondary:hover {
  background: rgba(15, 23, 42, 0.08);
  border-color: var(--border-strong);
}

[data-theme="light"] .btn-ghost:hover {
  background: rgba(15, 23, 42, 0.05);
}

[data-theme="light"] .theme-toggle-btn {
  background: rgba(15, 23, 42, 0.04);
  border-color: var(--border-default);
  color: var(--text-secondary);
}

[data-theme="light"] .theme-toggle-btn:hover {
  background: rgba(15, 23, 42, 0.08);
  border-color: var(--border-strong);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

[data-theme="light"] .console-title-bar {
  background: rgba(241, 245, 249, 0.95);
  border-bottom: 1px solid var(--border-subtle);
}

[data-theme="light"] .console-tabs-bar {
  background: rgba(248, 250, 252, 0.85);
  border-bottom: 1px solid var(--border-subtle);
}

[data-theme="light"] .console-url-pill {
  background: rgba(15, 23, 42, 0.04);
  border-color: var(--border-subtle);
}

[data-theme="light"] .journey-canvas {
  background-color: #F1F5F9;
  background-image: radial-gradient(circle at 1px 1px, rgba(15, 23, 42, 0.08) 1px, transparent 0);
  border-color: var(--border-subtle);
}

[data-theme="light"] .journey-node {
  background: #FFFFFF;
  border-color: var(--border-default);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .journey-node:hover {
  border-color: var(--border-brand);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.10);
}

[data-theme="light"] .badge--ingress {
  background: var(--cyan-a16);
  color: #0284C7;
}

[data-theme="light"] .badge--branch {
  background: var(--blue-a16);
  color: #2563EB;
}

[data-theme="light"] .badge--dispatch {
  background: var(--violet-a16);
  color: #7C3AED;
}

[data-theme="light"] .badge--active {
  background: rgba(16, 185, 129, 0.14);
  color: #059669;
}

[data-theme="light"] .badge--queued {
  background: rgba(15, 23, 42, 0.06);
  color: var(--text-tertiary);
}

[data-theme="light"] .composer-form {
  background: #FFFFFF;
  border-color: var(--border-default);
}

[data-theme="light"] .composer-input,
[data-theme="light"] .composer-textarea {
  background: #F8FAFC;
  border-color: var(--border-default);
}

[data-theme="light"] .inbox-grid {
  background: #FFFFFF;
  border-color: var(--border-default);
}

[data-theme="light"] .inbox-item {
  background: rgba(15, 23, 42, 0.02);
}

[data-theme="light"] .inbox-item:hover,
[data-theme="light"] .inbox-item.active {
  background: var(--blue-a08);
}

[data-theme="light"] .thread-msg-in {
  background: #F1F5F9;
  border-color: var(--border-subtle);
}

[data-theme="light"] .pillar-watermark {
  color: rgba(15, 23, 42, 0.04);
}

[data-theme="light"] .route-path {
  stroke: rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .telemetry-stat-card {
  background: var(--bg-base);
}

[data-theme="light"] .site-footer {
  background:
    linear-gradient(var(--bg-base), var(--bg-base)) padding-box,
    var(--gradient-brand) border-box;
}

[data-theme="light"] .live-dispatch-ticker {
  background: rgba(15, 23, 42, 0.04);
  border-color: var(--border-subtle);
}

[data-theme="light"] .back-to-top-btn {
  background: var(--bg-surface);
  border-color: var(--border-default);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

[data-theme="light"] .back-to-top-btn:hover {
  background: var(--bg-elevated);
  border-color: var(--border-brand);
}

[data-theme="light"] .form-input,
[data-theme="light"] .form-textarea {
  background: #FFFFFF;
}

/* ==========================================================================
   Comprehensive Mobile & Multi-Breakpoint Responsive Rules
   ========================================================================== */

/* Tablet Viewports (≤ 1199px) */
@media (max-width: 1199px) {
  .hero-channel-tile:not(.hero-tile-1):not(.hero-tile-2) {
    display: none;
  }
  .six-pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .industry-solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .leadership-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Tablet & Mobile Landscape Viewports (≤ 991px) */
@media (max-width: 991px) {
  .nav-menu {
    display: none;
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
  .nav-actions .btn-ghost {
    display: none;
  }
  
  .two-products-grid,
  .why-my-layout,
  .pricing-grid,
  .customer-proof-grid,
  .contact-split-grid {
    grid-template-columns: 1fr;
  }
  
  .composer-grid {
    grid-template-columns: 1fr;
  }
  .phone-mockup {
    max-width: 320px;
    margin: 0 auto;
  }
  
  .inbox-grid {
    grid-template-columns: 200px 1fr;
    height: auto;
  }
  .inbox-col:last-child {
    display: none;
  }
}

/* Standard Mobile Viewports (≤ 767px) */
@media (max-width: 767px) {
  /* Disable 3D transforms on mobile for pure performance and smoothness */
  *, *::before, *::after {
    perspective: none !important;
    transform-style: flat !important;
  }

  html, body {
    overflow-x: hidden;
    width: 100%;
  }

  .container, .container-wide {
    padding: 0 16px;
  }

  /* Navigation Bar Compact Floating State */
  .nav-container {
    top: 10px;
    width: calc(100% - 20px);
  }

  .nav {
    padding: 8px 12px 8px 14px;
  }

  .nav-brand span {
    font-size: 16px;
  }

  .nav-brand-icon {
    width: 24px;
    height: 24px;
  }

  .nav-actions {
    gap: 8px;
  }

  .nav-actions .btn-primary.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
  }

  .theme-toggle-btn {
    width: 32px;
    height: 32px;
  }

  .mobile-menu-btn {
    width: 32px;
    height: 32px;
  }

  /* Section Spacing & Headings */
  .section {
    padding: 60px 0;
  }

  .section-hero {
    padding: 100px 0 50px 0;
    min-height: auto;
  }

  .hero-content {
    margin-bottom: 32px;
  }

  .hero-eyebrow {
    margin-bottom: 12px;
    font-size: 11px;
  }

  .h1-hero, .hero-title {
    font-size: clamp(28px, 8.5vw, 42px);
    line-height: 1.15;
    letter-spacing: -0.025em;
  }

  .hero-subhead {
    font-size: 14px;
    line-height: 1.55;
    margin-bottom: 24px;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .hero-cta-group .btn {
    width: 100%;
    justify-content: center;
    padding: 12px 18px;
    font-size: 14px;
  }

  .hero-trust-line {
    font-size: 11px;
    line-height: 1.6;
    text-align: center;
  }

  .hero-channel-tile,
  .hero-svg-routes {
    display: none !important;
  }

  /* Studio Console on Mobile */
  .studio-console-wrapper {
    transform: none !important;
    perspective: none !important;
  }

  .studio-console {
    border-radius: var(--radius-lg);
    transform: none !important;
  }

  .console-title-bar {
    height: 38px;
    padding: 0 12px;
  }

  .console-url-pill {
    display: none;
  }

  .console-tabs-bar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0 8px;
    scrollbar-width: none;
    gap: 0;
  }
  .console-tabs-bar::-webkit-scrollbar {
    display: none;
  }

  .console-tab {
    padding: 10px 12px;
    font-size: 12px;
    white-space: nowrap;
    gap: 6px;
  }

  /* Journey Builder Canvas on Mobile: Stack nodes vertically with clean spacing */
  .journey-canvas {
    flex-direction: column;
    gap: 16px;
    padding: 18px 14px;
    min-height: auto;
    align-items: stretch;
  }

  .journey-node {
    width: 100%;
    max-width: 100%;
    padding: 14px 16px;
  }

  .journey-svg-connections {
    display: none;
  }

  /* Campaign Composer */
  .composer-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .composer-form {
    padding: 18px 14px;
  }

  .phone-mockup {
    max-width: 280px;
    margin: 0 auto;
    padding: 12px;
    border-radius: 28px;
    transform: none !important;
  }

  .phone-screen {
    min-height: auto;
    padding: 12px;
    border-radius: 20px;
  }

  /* Team Inbox */
  .inbox-grid {
    grid-template-columns: 1fr;
    height: auto;
  }

  .inbox-col:nth-child(1) {
    max-height: 160px;
    overflow-y: auto;
    padding: 12px;
  }

  .inbox-col:nth-child(2) {
    min-height: 240px;
    padding: 12px;
  }

  .inbox-col:nth-child(3) {
    display: none;
  }

  /* Metrics Strip */
  .metrics-strip {
    grid-template-columns: 1fr 1fr;
    gap: 20px 12px;
    padding: 32px 0;
    margin-top: 36px;
  }

  .metric-item {
    padding: 0 8px;
    border-right: none;
  }

  .metric-number {
    font-size: clamp(26px, 7.5vw, 36px);
  }

  .metric-label {
    font-size: 11px;
  }

  /* Cards & General Typography */
  .section-header-center,
  .section-header-left {
    margin-bottom: 32px;
  }

  .section-heading {
    font-size: clamp(22px, 6vw, 30px);
    line-height: 1.22;
    letter-spacing: -0.02em;
  }

  .body-large,
  .section-subhead {
    font-size: 14px;
    line-height: 1.55;
  }

  .card {
    padding: 22px 18px;
    border-radius: var(--radius-md);
  }

  .card-title {
    font-size: 18px;
  }

  /* Six Pillars */
  .six-pillars-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .pillar-card {
    padding: 22px 18px;
  }

  .pillar-watermark {
    font-size: 40px;
    top: 10px;
    right: 12px;
  }

  /* Telemetry Dashboard */
  .telemetry-wrapper {
    perspective: none;
  }

  .telemetry-dashboard {
    padding: 18px 14px;
    transform: none !important;
    border-radius: var(--radius-md);
  }

  .telemetry-top-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 18px;
    padding-bottom: 14px;
  }

  .telemetry-grid-stats {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 20px;
  }

  .throughput-bars {
    height: 60px;
    gap: 3px;
  }

  .sparkline-container {
    height: 50px;
  }

  /* Industry Solutions & Customer Proof */
  .industry-solutions-grid,
  .customer-proof-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .industry-card {
    min-height: 260px;
    padding: 22px 16px;
  }

  .testimonial-card {
    padding: 22px 18px;
    transform: none !important;
  }

  .testimonial-quote {
    font-size: 14px;
    line-height: 1.5;
  }

  /* Pricing Cards & Comparison Table */
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 32px;
  }

  .pricing-card {
    padding: 28px 20px;
    transform: none !important;
  }

  .pricing-card--featured {
    transform: none !important;
  }

  .pricing-amount {
    font-size: 36px;
    margin: 14px 0;
  }

  .comparison-table-wrap {
    padding: 18px 14px;
    border-radius: var(--radius-md);
    overflow: hidden;
  }

  .table-toggle-btn {
    font-size: 15px;
  }

  #comparison-content {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
    margin-top: 12px;
  }

  .comparison-table {
    min-width: 500px;
    font-size: 12px;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 10px 10px;
  }

  /* Leadership & Contact Form */
  .leadership-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 60px;
  }

  .leader-card {
    padding: 18px 12px;
  }

  .leader-avatar {
    width: 60px;
    height: 60px;
    margin-bottom: 12px;
  }

  .contact-split-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-form-card {
    padding: 24px 16px;
    border-radius: var(--radius-md);
  }

  .contact-route-card {
    padding: 16px;
  }

  .form-input,
  .form-textarea {
    padding: 12px 14px;
    font-size: 14px;
  }

  /* Site Footer */
  .site-footer {
    padding: 56px 0 32px 0;
  }

  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px 16px;
    margin-bottom: 40px;
  }

  .footer-top-grid > div:first-child {
    grid-column: 1 / -1;
  }

  .footer-bottom-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-top: 24px;
  }

  .live-dispatch-ticker {
    font-size: 11px;
    padding: 6px 12px;
    width: 100%;
    justify-content: flex-start;
  }

  /* Back-to-Top Button */
  .back-to-top-btn {
    bottom: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
  }
}

/* Small Smartphone Viewports (≤ 480px) */
@media (max-width: 480px) {
  .leadership-grid {
    grid-template-columns: 1fr;
  }

  .footer-top-grid {
    grid-template-columns: 1fr;
  }

  .nav-actions .btn-primary.btn-sm {
    display: none;
  }
}

/* ==========================================================================
   Accessibility: prefers-reduced-motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .glow-orb {
    animation: none !important;
  }
  .hero-channel-tile {
    animation: none !important;
  }
  .route-line-pulse {
    animation: none !important;
  }
  .shimmer-active {
    animation: none !important;
  }
  .reveal-fade-up,
  .reveal-fade-lateral-left,
  .reveal-fade-lateral-right,
  .reveal-scale-in,
  .stagger-group > * {
    opacity: 1 !important;
    transform: none !important;
  }
}