/* ═══════════════════════════════════════════════════
   The Upended Product Cycle — Design System
   Cinematic atmospheres · Projection-optimized typography
   ═══════════════════════════════════════════════════ */

/* ── Design Tokens (8px grid) ── */
:root {
  --bg:     #08080c;
  --fg:     #fafafa;
  --sub:    #b4b4bc;  /* bumped from #a1a1aa for WCAG AA contrast */
  --mute:   #71717a;  /* bumped from #52525b for readability */
  --dim:    #3f3f46;
  --teal:   #00d4aa;
  --coral:  #ff5757;
  --purple: #8b5cf6;
  --amber:  #f59e0b;
  --glass:  rgba(255,255,255,0.04);
  --glass2: rgba(255,255,255,0.07);
  --line:   rgba(255,255,255,0.08);
  --r:      12px;
  --nav-h:  44px;
  --nav-bg: rgba(8,8,12,0.88);
  --nav-border: rgba(255,255,255,0.05);
  --overlay-bg: rgba(0,0,0,0.5);
  --menu-bg: #111114;
  --menu-border: rgba(255,255,255,0.06);
  --kbd-bg: rgba(255,255,255,0.06);
  --kbd-border: rgba(255,255,255,0.08);
  --lv-bg: rgba(255,255,255,0.03);
}

/* ── Light Mode ── */
[data-theme="light"] {
  --bg:     #f5f5f0;
  --fg:     #111111;
  --sub:    #3d3d3d;
  --mute:   #6b6b6b;
  --dim:    #bfbfbf;
  --teal:   #00806a;
  --coral:  #cc2e2e;
  --purple: #6d28d9;
  --amber:  #b45309;
  --glass:  rgba(0,0,0,0.04);
  --glass2: rgba(0,0,0,0.07);
  --line:   rgba(0,0,0,0.12);
  --nav-bg: rgba(245,245,240,0.95);
  --nav-border: rgba(0,0,0,0.08);
  --overlay-bg: rgba(0,0,0,0.3);
  --menu-bg: #ededea;
  --menu-border: rgba(0,0,0,0.08);
  --kbd-bg: rgba(0,0,0,0.06);
  --kbd-border: rgba(0,0,0,0.12);
  --lv-bg: rgba(0,0,0,0.03);
  /* Override Reveal.js theme variables */
  --r-background-color: #f5f5f0;
  --r-main-color: #111111;
  --r-heading-color: #111111;
  --r-link-color: #00806a;
}

/* ═══ BASE ═══ */
.reveal {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 28px;  /* projection-optimized, was 24px */
  color: var(--fg);
  background: var(--bg);
}
.reveal .slides { text-align: left; }
.reveal .slides section {
  overflow: hidden !important;
  padding: 56px 64px 48px;
  box-sizing: border-box;
}

/* ═══ TYPOGRAPHY - Apple Keynote Scale ═══ */
.reveal h1 {
  font-size: 3.8em; font-weight: 900;
  letter-spacing: -0.06em; line-height: 0.98;
  margin: 0 0 24px;
}
.reveal h2 {
  font-size: 2.1em; font-weight: 800;
  letter-spacing: -0.04em; line-height: 1.1;
  margin: 0 0 16px;
}
.reveal h3 {
  font-size: 0.82em; font-weight: 700;
  letter-spacing: -0.01em; margin: 0 0 6px;
}
.reveal p {
  font-size: 0.85em; line-height: 1.65;
  color: var(--sub); margin: 0 0 10px;
}
.reveal strong { color: var(--fg); font-weight: 700; }
.mono { font-family: 'JetBrains Mono', monospace; }

/* ── Colors ── */
.teal   { color: var(--teal) !important; }
.coral  { color: var(--coral) !important; }
.purple { color: var(--purple) !important; }
.amber  { color: var(--amber) !important; }
.mute   { color: var(--mute) !important; }

/* ── Gradient text ── */
.grad {
  background: linear-gradient(135deg, var(--teal) 0%, var(--purple) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ═══ SLIDE TYPES ═══ */
.full {
  text-align: center !important;
  display: flex !important; flex-direction: column;
  align-items: center; justify-content: center;
}

/* Section opener - see cinematic section below for full definition */

/* ═══ COMPONENTS ═══ */

/* Quote - always attributed */
.q {
  border-left: 3px solid var(--teal);
  padding: 16px 24px;
  background: var(--glass);
  border-radius: 0 var(--r) var(--r) 0;
  margin: 16px 0;
}
.q p { color: var(--fg); font-weight: 400; font-size: 0.88em; line-height: 1.65; margin: 0; }
.q .by { display: block; font-size: 0.6em; color: var(--mute); margin-top: 8px; font-weight: 500; }

/* Big quote */
.bigq {
  font-size: 1.6em; font-weight: 500;
  line-height: 1.4; color: var(--fg);
  max-width: 740px; text-align: center;
  letter-spacing: -0.02em;
}
.bigq .by {
  display: block; font-size: 0.42em;
  color: var(--mute); margin-top: 24px;
  font-weight: 400; letter-spacing: 0;
}

/* Pill */
.pill {
  display: inline-block; font-size: 0.42em;
  font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.16em; padding: 5px 16px;
  border-radius: 4px; margin-bottom: 16px;
}
.pill-b { background: rgba(255,87,87,0.12); color: var(--coral); }
.pill-d { background: var(--coral); color: #000; }
.pill-a { background: rgba(0,212,170,0.12); color: var(--teal); }

/* Card */
.card {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 20px;
  transition: border-color 0.3s ease;
}

/* Grid */
.g2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.g3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.g4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 14px; }

/* Old/New belief */
.old {
  font-size: 1.35em; font-weight: 700;
  color: var(--fg);
  margin-bottom: 10px;
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.old.struck {
  color: var(--dim);
  text-decoration: line-through;
  text-decoration-color: var(--coral);
  text-decoration-thickness: 2px;
}
.new {
  background: linear-gradient(135deg, rgba(0,212,170,0.08), rgba(139,92,246,0.08));
  border: 1px solid rgba(0,212,170,0.22);
  border-radius: var(--r); padding: 16px 20px;
  margin: 14px 0;
  box-shadow: 0 0 40px rgba(0,212,170,0.04);
}
.new p { color: var(--fg); font-weight: 600; margin: 0; font-size: 1em; letter-spacing: -0.01em; }

/* Flow */
.flow { display: flex; align-items: center; gap: 6px; justify-content: center; flex-wrap: wrap; }
.step {
  background: var(--glass); border: 1px solid var(--line);
  border-radius: 8px; padding: 10px 14px;
  text-align: center; min-width: 90px;
}
.step strong { display: block; font-size: 0.78em; color: var(--fg); }
.step span { font-size: 0.62em; color: var(--mute); }
.arr { color: var(--teal); font-size: 1.1em; }

/* Bar */
.brow { margin: 6px 0; }
.brow-label { font-size: 0.65em; color: var(--mute); margin-bottom: 3px; }
.brow-track { display: flex; gap: 2px; }
.brow-bar { height: 16px; border-radius: 4px; display: flex; align-items: center; padding: 0 8px; font-size: 0.55em; font-weight: 600; }

/* Stack levels */
.lv {
  display: flex; align-items: center;
  padding: 12px 18px; margin: 4px 0; border-radius: 8px;
}
.lv-n { font-family: 'JetBrains Mono'; font-weight: 700; font-size: 1.2em; width: 26px; margin-right: 16px; }
.lv-t { font-weight: 700; color: var(--fg); white-space: nowrap; margin-right: 12px; font-size: 0.92em; }
.lv-d { font-size: 0.75em; color: var(--mute); flex: 1; }
.lv-w { font-size: 0.6em; font-weight: 700; margin-left: auto; white-space: nowrap; text-transform: uppercase; letter-spacing: 0.08em; }
.l5 { background: linear-gradient(90deg, rgba(139,92,246,0.1), transparent); border-left: 3px solid var(--purple); }
.l4 { background: linear-gradient(90deg, rgba(0,212,170,0.1), transparent); border-left: 3px solid var(--teal); }
.l3 { background: linear-gradient(90deg, rgba(245,158,11,0.08), transparent); border-left: 3px solid var(--amber); }
.l2 { background: linear-gradient(90deg, rgba(255,87,87,0.08), transparent); border-left: 3px solid var(--coral); }
.l1 { background: linear-gradient(90deg, var(--lv-bg), transparent); border-left: 3px solid var(--mute); }

/* Does / Doesn't */
.pan { border-radius: var(--r); padding: 20px 24px; }
.pan h3 { font-size: 0.92em; margin-bottom: 12px; }
.pan ul { font-size: 0.78em; line-height: 1.85; padding-left: 18px; margin: 0; }
.pan li { color: var(--sub); }
.pan-n { background: rgba(255,87,87,0.04); border: 1px solid rgba(255,87,87,0.12); }
.pan-n h3 { color: var(--coral); }
.pan-y { background: rgba(0,212,170,0.04); border: 1px solid rgba(0,212,170,0.12); }
.pan-y h3 { color: var(--teal); }

/* Mapping row */
.mr { display: flex; align-items: center; margin: 5px 0; gap: 10px; }
.mr-from { flex:1; background: var(--glass); border: 1px solid var(--line); border-radius: 8px; padding: 10px 16px; font-size: 0.78em; color: var(--mute); }
.mr-a { color: var(--teal); font-size: 1em; min-width: 24px; text-align: center; }
.mr-to { flex:1; background: rgba(0,212,170,0.04); border: 1px solid rgba(0,212,170,0.12); border-radius: 8px; padding: 10px 16px; font-size: 0.78em; color: var(--teal); font-weight: 500; }

/* Leader card */
.lc { background: var(--glass); border: 1px solid var(--line); border-radius: var(--r); padding: 16px 20px; }
.lc .lc-q { color: var(--fg); font-weight: 600; font-size: 0.82em; margin: 0 0 4px; }
.lc .lc-a { font-size: 0.68em; color: var(--teal); margin: 0; }

/* Resources */
.res { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 32px; font-size: 0.72em; }
.res span { color: var(--fg); font-weight: 500; }
.res a { color: var(--mute); text-decoration: none; transition: color 0.2s; }
.res a:hover { color: var(--teal); }

/* Stat - massive number */
.stat {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2.4em; font-weight: 700;
  color: var(--teal); line-height: 1.1;
}
.fn { font-size: 0.5em; color: var(--mute); margin-top: 14px; font-style: italic; letter-spacing: 0.02em; }

/* ═══ ANIMATIONS ═══ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.reveal .slides section .fragment.visible {
  animation: fadeUp 0.45s ease-out;
}
@keyframes subtlePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* ── Cinematic ambient glow (title slide) ── */
@keyframes drift {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
  33%      { transform: translate(-45%, -55%) scale(1.12); opacity: 0.9; }
  66%      { transform: translate(-55%, -48%) scale(0.95); opacity: 0.7; }
}
.title-ambient::before {
  content: '';
  position: absolute;
  width: 600px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(0,212,170,0.12) 0%, rgba(139,92,246,0.06) 40%, transparent 70%);
  top: 55%; left: 50%;
  transform: translate(-50%, -50%);
  animation: drift 20s ease-in-out infinite;
  pointer-events: none; z-index: 0;
}
.title-ambient > * { position: relative; z-index: 1; }

/* ── "More." landing glow ── */
@keyframes moreLand {
  0%   { text-shadow: 0 0 0px transparent; }
  30%  { text-shadow: 0 0 80px rgba(0,212,170,0.5), 0 0 140px rgba(0,212,170,0.2); }
  100% { text-shadow: 0 0 40px rgba(0,212,170,0.2); }
}
.more-glow { animation: moreLand 1.6s ease-out forwards; }

/* ── Act atmospheres (subtle per-section tinting) ── */
.atm-belief {
  background: radial-gradient(ellipse 60% 45% at 10% 50%, rgba(255,87,87,0.04) 0%, transparent 60%) !important;
}
.atm-demo {
  background: radial-gradient(ellipse 50% 55% at 85% 50%, rgba(0,212,170,0.05) 0%, transparent 55%) !important;
}
.atm-framework {
  background: radial-gradient(ellipse 65% 50% at 50% 80%, rgba(139,92,246,0.05) 0%, transparent 60%) !important;
}
.atm-action {
  background: radial-gradient(ellipse 55% 45% at 50% 50%, rgba(0,212,170,0.04) 0%, transparent 55%) !important;
}

/* ── Act entrance ceremony ── */
@keyframes actEntrance {
  0%   { opacity: 0; }
  25%  { opacity: 0; }
  100% { opacity: 1; }
}
.section-open {
  text-align: center !important;
  display: flex !important; flex-direction: column;
  align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 60%, rgba(0,212,170,0.08) 0%, transparent 65%) !important;
}
.section-open::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,212,170,0.2), transparent);
}

/* ── Animated bar growth ── */
@keyframes growBar {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}
.brow-bar {
  transform-origin: left center;
}
.fragment.visible .brow-bar,
.fragment.visible.brow-bar {
  animation: growBar 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

/* ── Pillar icon circles (replaces Unicode symbols) ── */
.pillar-icon {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 10px;
  font-size: 1.1em; font-weight: 800;
  transition: box-shadow 0.6s ease;
}
.fragment.visible .pillar-icon {
  box-shadow: 0 0 30px rgba(0,212,170,0.2);
}

/* ── Stack level reveal ── */
.lv.fragment {
  will-change: transform, opacity;
}

/* ═══ ACCESSIBILITY ═══ */
.nav-act:focus-visible, #menu-btn:focus-visible, #menu-close:focus-visible, .menu-slide:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}
@media (max-width: 1200px) {
  .reveal .slides section { padding: 44px 40px 36px; }
  .g4 { grid-template-columns: 1fr 1fr; }
}
@media print {
  #deck-nav, #menu-overlay, #menu-panel { display: none !important; }
  .fragment { opacity: 1 !important; visibility: visible !important; }
}

/* ── GPU compositing hints ── */
#deck-nav { will-change: opacity; }
#menu-panel { will-change: right; }

/* ═══════════════════════════════════════════
   TOP NAVIGATION BAR
   Clickable acts · Progress · Section jumping
   ═══════════════════════════════════════════ */
#deck-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 0 16px;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--nav-border);
  opacity: 0;
  transition: opacity 0.5s ease;
}
.reveal.ready #deck-nav { opacity: 1; }

/* Nav acts */
.nav-acts {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}
.nav-act {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 16px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s ease;
  position: relative;
}
.nav-act:hover {
  background: var(--glass2);
}
.nav-label {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  color: var(--mute);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color 0.25s ease;
}
.nav-act.active .nav-label {
  color: var(--teal);
}
.nav-act.done .nav-label {
  color: var(--sub);
}
.nav-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--dim);
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.nav-act.active .nav-dot {
  background: var(--teal);
  box-shadow: 0 0 8px rgba(0,212,170,0.5);
}
.nav-act.done .nav-dot {
  background: var(--sub);
}
/* Progress line under active act */
.nav-act::after {
  content: '';
  position: absolute;
  bottom: 0; left: 16px; right: 16px;
  height: 2px;
  background: transparent;
  border-radius: 1px;
  transition: background 0.3s ease;
}
.nav-act.active::after {
  background: var(--teal);
}
/* Separator between acts */
.nav-sep {
  width: 1px; height: 16px;
  background: var(--line);
  margin: 0 4px;
}

/* Menu button */
#menu-btn {
  background: none;
  border: 1px solid var(--line);
  color: var(--sub);
  cursor: pointer;
  font-size: 16px;
  padding: 4px 10px;
  border-radius: 6px;
  transition: all 0.2s ease;
  margin-left: 12px;
  font-family: system-ui;
}
#menu-btn:hover {
  background: var(--glass2);
  color: var(--fg);
  border-color: var(--line);
}

/* Slide counter in nav */
#slide-counter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--dim);
  margin-left: 8px;
  min-width: 40px;
  text-align: right;
}

/* ═══════════════════════════════════════════
   SLIDE-OUT MENU
   Full slide list · Grouped by act
   ═══════════════════════════════════════════ */
#menu-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--overlay-bg);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
#menu-overlay.open {
  opacity: 1;
  pointer-events: all;
}
#menu-panel {
  position: fixed;
  top: 0; right: -340px;
  width: 320px; height: 100%;
  background: var(--menu-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-left: 1px solid var(--menu-border);
  z-index: 200;
  overflow-y: auto;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 24px 0;
  font-family: 'Inter', sans-serif;
}
#menu-panel.open {
  right: 0;
}
#menu-panel::-webkit-scrollbar { width: 4px; }
#menu-panel::-webkit-scrollbar-thumb { background: var(--dim); border-radius: 2px; }

.menu-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px 16px;
  border-bottom: 1px solid var(--menu-border);
  margin-bottom: 8px;
}
.menu-header h3 {
  font-size: 13px; font-weight: 700;
  color: var(--fg); margin: 0;
  letter-spacing: 0.02em;
}
#menu-close {
  background: none; border: none; color: var(--mute);
  cursor: pointer; font-size: 18px; padding: 4px 8px;
  border-radius: 4px; transition: color 0.2s;
}
#menu-close:hover { color: var(--fg); }

.menu-act-label {
  font-size: 10px; font-weight: 700;
  color: var(--mute); letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 12px 20px 4px;
}
.menu-slide {
  display: flex; align-items: center;
  width: 100%;
  background: none; border: none;
  padding: 8px 20px 8px 28px;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
  gap: 10px;
}
.menu-slide:hover {
  background: var(--glass2);
}
.menu-slide.active {
  background: rgba(0,212,170,0.08);
}
.menu-slide-num {
  font-family: 'JetBrains Mono'; font-size: 10px;
  color: var(--dim); min-width: 18px;
}
.menu-slide.active .menu-slide-num {
  color: var(--teal);
}
.menu-slide-title {
  font-size: 12px; color: var(--sub);
  font-weight: 500;
}
.menu-slide.active .menu-slide-title {
  color: var(--teal); font-weight: 600;
}

/* Keyboard hints at bottom of menu */
.menu-keys {
  padding: 16px 20px;
  border-top: 1px solid var(--menu-border);
  margin-top: 8px;
}
.menu-keys p {
  font-size: 10px; color: var(--dim); margin: 3px 0;
}
.menu-keys kbd {
  display: inline-block;
  padding: 1px 5px;
  background: var(--kbd-bg);
  border: 1px solid var(--kbd-border);
  border-radius: 3px;
  font-family: 'JetBrains Mono'; font-size: 9px;
  color: var(--mute);
}

/* ═══ THEME TOGGLE ═══ */
#theme-toggle {
  background: none;
  border: 1px solid var(--line);
  color: var(--sub);
  cursor: pointer;
  font-size: 14px;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.2s ease;
  margin-left: 6px;
  line-height: 1;
}
#theme-toggle:hover {
  background: var(--glass2);
  color: var(--fg);
}

/* ═══ REVEAL.JS OVERRIDES ═══ */
.reveal .controls { display: none !important; }
.reveal .progress { height: 2px !important; }
.reveal .progress span { background: var(--teal) !important; }
.reveal .slide-number { display: none !important; }