/* ============================================================
   animations.css  —  Animations & Responsive Overrides
   ============================================================
   Contains:
   • .reveal entrance animation (opacity + translateY)
   • .delay-1 … .delay-5 stagger helpers
   • Chart animation classes (.stat-bar-fill.anim, donut arcs)
   • @keyframes definitions
   • All @media (max-width: 768px) overrides

   DEPENDENCIES: tokens.css, layout.css, components.css

   IMPORT ORDER MATTERS — always import this file last so
   media queries correctly override desktop styles.

   REUSE NOTES:
   • The .reveal / .delay-* system works independently —
     drop it into any project alongside interactions.js
     (which manages the IntersectionObserver trigger).
   • Mobile overrides assume the horizontal scroll model
     from scroll.js; if you use a different scroll approach
     review the .panel and #scroll-container overrides.
   ============================================================ */

/* ══════════════════════════════════════════════════
   MOBILE — max-width 768px
══════════════════════════════════════════════════ */
@media (max-width: 768px) {

  /* NAV — two-row stacked layout on mobile */
  #topnav {
    padding: 0.6rem 1.2rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }
  #topnav > div:first-child { gap: 0.8rem; }
  .nav-logo { font-size: 1.1rem; letter-spacing: 2px; }
  .nav-divider { display: none; }
  .nav-panel-label { display: none; }
  
  #topnav > div:last-child { align-self: flex-start; }
  #panel-counter { display: none; }
  .nav-dot { width: 5px; height: 5px; }

  /* Mobile: keep horizontal layout, each panel scrolls vertically */
  html, body {
    overflow: hidden;
    height: 100%;
  }

  #scroll-container {
    align-items: stretch;
  }

  .panel {
    height: 100svh;
    min-height: unset;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    padding: 6rem 1.4rem 2.5rem;
    justify-content: flex-start;
    align-items: flex-start;
    touch-action: pan-y;
  }

  /* SCROLL HINT */
  #scroll-hint { display: none; }
  #swipe-hint {
    display: flex;
    position: fixed;
    bottom: 1.8rem; left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    pointer-events: none;
    animation: hintPulse 2.5s ease-in-out infinite;
    transition: opacity 0.5s;
  }
  .swipe-hand {
    font-size: 1.6rem;
    animation: swipeGesture 1.6s ease-in-out infinite;
  }
  @keyframes swipeGesture {
    0%   { transform: translateX(8px);  opacity: 0.5; }
    40%  { transform: translateX(-8px); opacity: 1;   }
    80%  { transform: translateX(8px);  opacity: 0.5; }
    100% { transform: translateX(8px);  opacity: 0.5; }
  }
  .swipe-label {
    font-family: 'Space Mono', monospace;
    font-size: 0.52rem;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: rgba(150,250,0,0.65);
  }

  /* PANEL 0: HERO */
  .hero-bg-text { font-size: 55vw; bottom: -4vh; right: -4vw; }
  .hero-layout { grid-template-columns: 1fr; gap: 1.5rem; height: auto; }
  .hero-right { height: 220px; }
  .hero-h1 { font-size: clamp(4.2rem, 17vw, 7rem); margin-bottom: 1rem; }
  .hero-sub { font-size: 0.88rem; line-height: 1.6; }
  .hero-eyebrow { margin-bottom: 1.2rem; }
  .hero-cta { margin-top: 1.6rem; padding: 0.8rem 1.6rem; font-size: 0.72rem; }

  /* PANEL 1: AI SHIFT */
  .panel-scene {
    display: flex !important;
    flex-direction: column;
    gap: 1.5rem;
    padding: 4.5rem 1.4rem 2rem;
    align-items: flex-start;
    }
  .panel-h2 { font-size: clamp(2.2rem, 8.5vw, 3.5rem); }
  .lead { font-size: 0.85rem; max-width: 100%; }
  .scene-chart-wrap { margin-top: 1rem; }
  .scene-right { width: 100%; height: 240px; padding: 0; }
  .scene-insight-img { object-position: top left; }
  .scene-ai-bubble { font-size: 0.78rem; }

  /* PANELS 2-5: PROBLEMS */
  .panel-problem {
    display: flex !important;
    flex-direction: column;
    gap: 0.4rem;
    padding: 5rem 1.4rem 2rem;
    align-items: flex-start;
    }
  .prob-num {
    font-size: 3.5rem;
    position: static;
    color: rgba(255,255,255,0.12);
    margin-bottom: 0;
    line-height: 1;
  }
  .prob-icon { font-size: 2rem; margin-bottom: 0.4rem; }
  .panel-label-strip { display: none; }
  .panel-label-strip { top: 3.8rem; right: 1.4rem; }
  .prob-big-stat { font-size: clamp(3.5rem, 17vw, 6rem); }
  .prob-right { width: 100%; }
  .donut-row { flex-wrap: wrap; gap: 1.2rem; }
  .donut-wrap { min-width: 110px; }
  .gap-bars { gap: 1rem; }

  /* PANEL 6: B2B */
  .panel-b2b {
    flex-direction: column;
    padding: 4.5rem 1.4rem 2rem;
    align-items: flex-start;
    gap: 1.2rem;
    }
  .b2b-image { width: 100%; height: 220px; border-radius: 8px; }
  .b2b-grid { grid-template-columns: 1fr; gap: 1rem; }
  .b2b-stat-num { font-size: clamp(3.5rem, 17vw, 6rem); }

  /* PANEL 7: JOURNEY */
  .panel-journey {
    padding: 4.5rem 1.4rem 2rem;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
    }
  .journey-track {
    flex-direction: column;
    gap: 0;
    width: 100%;
    overflow: visible;
  }
  .j-arrow { transform: rotate(90deg); align-self: center; }
  .j-node { min-width: unset; width: 100%; padding: 0.6rem 0.8rem; }
  .j-node-label { font-size: 0.65rem; }
  .j-step { min-width: unset; width: 100%; padding: 0.8rem 1rem; }
  .j-step h4 { font-size: 1.1rem; }
  .j-step p { font-size: 0.72rem; }

  /* PANEL 8: METRICS */
  .panel-metrics { padding: 4.5rem 1.4rem 2rem; }

  /* PANEL 8b: MARKETING ACTIONS */
  .panel-actions { padding: 6rem 0 2rem; overflow: visible; }
  .actions-header { padding: 0 1.4rem; margin-bottom: 0.8rem; }
  .hvm-matrix {
    grid-template-columns: 2.8rem 1fr;
    grid-template-rows: auto;
    flex: unset;
    overflow: visible;
    background: transparent;
    gap: 0;
  }
  /* On mobile: show phases stacked, hide column headers */
  .hvm-corner { display: none; }
  .hvm-phase-head { display: none; }
  .hvm-row-label {
    writing-mode: horizontal-tb;
    justify-content: flex-start;
    padding: 0.5rem 0.4rem;
    grid-column: 1;
    align-items: flex-start;
    border-right: 2px solid rgba(255,255,255,0.08);
    border-bottom: none;
  }
  .hvm-row-label span {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    font-size: 0.42rem;
  }
  /* Stack all 4 external cells into single scrollable column */
  .hvm-matrix > .hvm-cell {
    grid-column: 2;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding: 0.9rem 1.2rem;
  }
  .hvm-branded-title { font-size: 0.9rem; }
  .hvm-branded-desc { font-size: 0.68rem; }
  .hvm-action-title { font-size: 0.72rem; }
  .hvm-action-desc { font-size: 0.65rem; }
  .metrics-header { margin-bottom: 1rem; }
  .metrics-header .panel-h2 { font-size: clamp(1.8rem, 7vw, 3rem); }
  .metrics-grid { grid-template-columns: 1fr 1fr; flex: unset; min-height: unset; }
  .metric-card { padding: 1.1rem 0.9rem; gap: 0.5rem; }
  .metric-name { font-size: 1.1rem; }
  .metric-def { font-size: 0.72rem; }

  /* PANEL 8b: GEO PLAYBOOK */
  .panel-playbook {
    padding: 4.5rem 1.2rem 2rem;
    overflow-y: auto;
    overflow-x: hidden;
  }
  .panel-playbook .panel-h2 { font-size: clamp(1.8rem, 7vw, 3rem); }
  .panel-playbook .lead { font-size: 0.8rem; }
  .pb-emerging { margin-top: 0.7rem; }
  .pb-emerging-body { gap: 0.7rem; }
  .playbook-grid {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: transparent;
    flex: unset;
    min-height: unset;
  }
  .pb-col {
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 2px;
  }
  .pb-teams { overflow-y: visible; }
  .pb-output-items { flex-wrap: wrap; }

  /* PANEL 9: PROCESS */
  .panel-process { padding: 4.5rem 1.4rem 2rem; overflow-y: auto; }
  .process-header { margin-bottom: 1rem; }
  .process-header .panel-h2 { font-size: clamp(1.8rem, 7vw, 3rem); }
  .process-track { grid-template-columns: 1fr 1fr; flex: unset; min-height: unset; }
  .process-card { padding: 1.2rem; gap: 0.6rem; }
  .process-num { font-size: 2.5rem; }
  .process-card h4 { font-size: 1.2rem; }
  .process-card p { font-size: 0.75rem; }

  /* PANEL 10: USPs */
  .panel-usp { padding: 4.5rem 1.4rem 2rem; overflow-y: auto; }
  .usp-header { margin-bottom: 1rem; }
  .usp-header .panel-h2 { font-size: clamp(1.8rem, 7vw, 3rem); }
  .usp-grid { grid-template-columns: 1fr 1fr; flex: unset; min-height: unset; }
  .usp-card { padding: 1.1rem 0.9rem; gap: 0.6rem; }
  .usp-icon { font-size: 1.4rem; }
  .usp-card h4 { font-size: 1rem; }
  .usp-card p { font-size: 0.72rem; }

  /* PANEL 11: PRICING */
  .panel-pricing {
    padding: 4.5rem 1.4rem 2rem;
    justify-content: flex-start;
      gap: 0;
  }
  .pricing-header { margin-bottom: 1rem; }
  .pricing-header .panel-h2 { font-size: clamp(1.8rem, 7vw, 3rem); }
  .pricing-grid { grid-template-columns: 1fr; gap: 0.9rem; flex-shrink: unset; }
  .price-card { padding: 1.2rem; gap: 0.7rem; }
  .price-amount { font-size: clamp(1.4rem, 5.5vw, 2rem); }
  .price-desc { font-size: 0.75rem; }
  .price-include-item { font-size: 0.56rem; }

  /* PANEL 12: CTA */
  .panel-cta { padding: 4.5rem 1.4rem 3rem; overflow-y: auto; }
  .cta-layout { grid-template-columns: 1fr; gap: 2rem; }
  .cta-h2 { font-size: clamp(2.5rem, 10vw, 4rem); }
  .cta-form { padding: 1.2rem 1.2rem 0.8rem; }
  .cta-footer-line {
    position: relative;
    bottom: auto;
    left: auto;
    margin-top: 2rem;
  }
  .cta-bg-text { font-size: 55vw; }
  .cta-h2 { font-size: clamp(3rem, 13vw, 5rem); }
  .cta-body { font-size: 0.85rem; }
  .cta-btns { flex-direction: column; gap: 0.8rem; align-items: stretch; }
  .btn-primary, .btn-secondary {
    padding: 0.85rem 1.6rem;
    font-size: 0.72rem;
    text-align: center;
    justify-content: center;
  }
}

/* Extra small phones (max-width 420px) */
@media (max-width: 420px) {
  .metrics-grid { grid-template-columns: 1fr; }
  .process-track { grid-template-columns: 1fr; }
  .hero-h1 { font-size: 15vw; }
  .panel-h2 { font-size: clamp(2rem, 8vw, 3rem); }
}
.reveal.delay-5 { transition-delay: 0.5s; }
.panel.active .reveal { opacity: 1; transform: translateY(0); }