/* ════════════════════════════════════════════════════════
   DESIGN TOKENS
   ════════════════════════════════════════════════════════ */
:root {
  /* Background depth scale */
  --bg-0: #07090d;
  --bg-1: #0f1419;
  --bg-2: #161c24;
  --bg-3: #1f2731;

  /* Brand colors */
  --lupia: #14B8A6;
  --lupia-bright: #2DD4BF;
  --lupia-deep: #0F766E;
  --lupia-dim: #134e4a;

  /* Semantic */
  --lime: #A3E635;
  --lime-deep: #65A30D;
  --amber: #FBBF24;
  --red: #F87171;
  --red-deep: #B91C1C;

  /* Text */
  --txt-hi: #F3F4F6;
  --txt-md: #9CA3AF;
  --txt-lo: #6B7280;
  --txt-mute: #4B5563;

  /* Lines */
  --border: rgba(255,255,255,0.08);
  --border-bright: rgba(255,255,255,0.16);

  /* Fonts */
  --font-display: 'Bricolage Grotesque', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --font-quote: 'Fraunces', Georgia, serif;
}

/* ════════════════════════════════════════════════════════
   RESET & BASE
   ════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}
body {
  font-family: var(--font-body);
  background: var(--bg-0);
  color: var(--txt-hi);
  overflow-x: hidden;
  overflow-y: hidden;
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* Editorial refinements: kerning, ligatures, contextual alternates */
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1, "ss01" 1;
  text-rendering: optimizeLegibility;
}

/* Display type — wider tracking control, tight optical size */
.h-display, .cover-title, .manifesto-name, .close-title, .provoke-question {
  font-feature-settings: "kern" 1, "liga" 1, "ss01" 1, "ss02" 1, "cv11" 1;
  font-variation-settings: "opsz" 96;
}

/* Mono — tabular numbers for vertical alignment in timelines, prices, counters */
.counter, .timeline-row .time, .slide-marker, .nav-hint, .brand-mark,
.cover-tag, .eyebrow, .stage-period, .compliance-sector, .invest-card .label,
.cap-card .num, .predict-card .num, .receive-num, .scenario-badge,
.discount-pill .off, .next-step .num {
  font-feature-settings: "tnum" 1, "kern" 1;
  font-variant-numeric: tabular-nums;
}

/* Serif (Fraunces) — sophisticated display axes */
em.serif, .cover-tagline, .manifesto-body, .close-sub,
.compare-vs, .scenario-takeaway, .predict-takeaway em.serif {
  font-feature-settings: "kern" 1, "liga" 1, "dlig" 1, "ss01" 1;
  font-variation-settings: "opsz" 144, "SOFT" 50, "WONK" 0;
}

/* Noise background overlay for depth */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.03;
  z-index: 1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* ════════════════════════════════════════════════════════
   DECK STRUCTURE
   ════════════════════════════════════════════════════════ */
.deck {
  display: flex;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  transition: transform 0.7s cubic-bezier(0.65, 0, 0.35, 1);
  will-change: transform;
}

.slide {
  flex: 0 0 100vw;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-y: auto;
  overflow-x: hidden;
  /* padding-top:    marker_top (clamp 40-64) + altura (~16) + gap (~24-40)
     padding-bottom: counter/nav-hint_bottom (28-48) + altura (~14-16)
                     + backdrop (~4) + gap (~32-48) → 80-128px */
  padding:
    clamp(80px, 7vw, 120px)
    clamp(40px, 5.5vw, 100px)
    clamp(80px, 6.5vw, 128px);
  scrollbar-width: thin;
  scrollbar-color: var(--lupia-deep) transparent;
  scrollbar-gutter: stable;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}
.slide::-webkit-scrollbar { width: 6px; }
.slide::-webkit-scrollbar-track { background: transparent; }
.slide::-webkit-scrollbar-thumb { background: var(--lupia-deep); border-radius: 3px; }
.slide::-webkit-scrollbar-thumb:hover { background: var(--lupia); }

/* Slide chrome (numbering, label) */
.slide-marker {
  position: absolute;
  top: clamp(40px, 4vw, 64px);
  left: clamp(48px, 6vw, 120px);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--txt-mute);
  text-transform: uppercase;
  z-index: 5;
}
.slide-marker .num {
  color: var(--lupia);
  font-weight: 700;
  margin-right: 12px;
}

/* Giant decorative chapter number — sits in background */
.deco-number {
  position: absolute;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(20rem, 38vw, 50rem);
  line-height: 0.78;
  color: var(--bg-2);
  user-select: none;
  pointer-events: none;
  z-index: 0;
  letter-spacing: -0.04em;
}

/* ════════════════════════════════════════════════════════
   UI OVERLAY: progress, counter, nav arrows, hints
   ════════════════════════════════════════════════════════ */
.ui-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
}

.progress-bar {
  position: absolute;
  top: 0; left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lupia), var(--lupia-bright));
  width: 0%;
  transition: width 0.7s cubic-bezier(0.65, 0, 0.35, 1);
  box-shadow: 0 0 12px var(--lupia);
}

.brand-mark {
  position: absolute;
  top: clamp(28px, 3vw, 48px);
  right: clamp(48px, 6vw, 120px);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--txt-md);
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--lupia);
  box-shadow: 0 0 10px var(--lupia);
}
.brand-mark .sep {
  width: 16px;
  height: 1px;
  background: var(--lupia-deep);
  opacity: 0.5;
}
.brand-mark .brand-name {
  color: var(--lupia-bright);
  font-weight: 700;
}
.brand-mark .brand-suffix {
  color: var(--txt-lo);
}

.counter {
  position: absolute;
  bottom: clamp(28px, 3vw, 48px);
  right: clamp(48px, 6vw, 120px);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--txt-md);
  letter-spacing: 0.08em;
}
.counter .current { color: var(--lupia-bright); font-weight: 700; }

.nav-hint {
  position: absolute;
  bottom: clamp(28px, 3vw, 48px);
  left: clamp(48px, 6vw, 120px);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--txt-mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  pointer-events: auto;
  opacity: 0.7;
}

.nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(20, 184, 166, 0.08);
  border: 1px solid var(--border);
  color: var(--txt-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  pointer-events: auto;
  backdrop-filter: blur(8px);
  user-select: none;
}
.nav-arrow:hover {
  background: rgba(20, 184, 166, 0.2);
  border-color: var(--lupia);
  color: var(--lupia-bright);
  transform: translateY(-50%) scale(1.05);
}
.nav-arrow svg { width: 22px; height: 22px; }
.nav-arrow.prev { left: 24px; }
.nav-arrow.next { right: 24px; }
.nav-arrow.disabled { opacity: 0.2; cursor: not-allowed; }

/* ════════════════════════════════════════════════════════
   SLIDE ENTRY ANIMATIONS
   Each .slide-content child gets staggered reveal on .active
   ════════════════════════════════════════════════════════ */
.slide-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 1500px;
  margin: 0 auto;
}

.slide-content > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.slide.active .slide-content > * {
  opacity: 1;
  transform: translateY(0);
}
.slide.active .slide-content > *:nth-child(1) { transition-delay: 0.15s; }
.slide.active .slide-content > *:nth-child(2) { transition-delay: 0.30s; }
.slide.active .slide-content > *:nth-child(3) { transition-delay: 0.45s; }
.slide.active .slide-content > *:nth-child(4) { transition-delay: 0.60s; }
.slide.active .slide-content > *:nth-child(5) { transition-delay: 0.75s; }
.slide.active .slide-content > *:nth-child(6) { transition-delay: 0.90s; }
.slide.active .slide-content > *:nth-child(7) { transition-delay: 1.05s; }

/* ════════════════════════════════════════════════════════
   TYPOGRAPHY UTILITIES
   ════════════════════════════════════════════════════════ */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lupia-bright);
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--lupia);
}

.h-display {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 0.96;
  letter-spacing: -0.035em;
  color: var(--txt-hi);
}

.h-mega { font-size: clamp(3rem, 7.5vw, 7rem); }
.h-xl   { font-size: clamp(2.25rem, 5vw, 4.25rem); }
.h-lg   { font-size: clamp(1.85rem, 4vw, 3.25rem); }
.h-md   { font-size: clamp(1.4rem, 2.6vw, 2.1rem); }

.lede {
  font-family: var(--font-body);
  font-size: clamp(1.15rem, 1.6vw, 1.5rem);
  line-height: 1.55;
  color: var(--txt-md);
  font-weight: 400;
  max-width: 70ch;
}

.body-md {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  line-height: 1.6;
  color: var(--txt-md);
}

.accent-lupia { color: var(--lupia-bright); }
.accent-lime  { color: var(--lime); }
.accent-amber { color: var(--amber); }
.accent-red   { color: var(--red); }

em.serif {
  font-family: var(--font-quote);
  font-style: italic;
  color: var(--txt-hi);
  font-weight: 400;
}


/* ════════════════════════════════════════════════════════
   CHROME BACKDROP — fade radial sutil atrás do chrome FIXO
   (brand-mark, counter, nav-hint) para legibilidade quando o
   conteúdo do slide rola por baixo no mobile/tablet.

   Slide-marker NÃO precisa de backdrop: ele é position: absolute
   dentro do .slide e rola junto com o conteúdo. Aplicar
   backdrop nele cria um "halo" que se confunde com o eyebrow
   imediatamente abaixo (problema visto em desktop). */
.brand-mark, .counter, .nav-hint {
  isolation: isolate;
}
.brand-mark::before,
.counter::before,
.nav-hint::before {
  content: '';
  position: absolute;
  inset: -4px -14px;
  border-radius: 999px;
  background: radial-gradient(
    ellipse 60% 110% at center,
    rgba(7, 9, 13, 0.78) 30%,
    rgba(7, 9, 13, 0)    80%
  );
  z-index: -1;
  pointer-events: none;
}


/* ════════════════════════════════════════════════════════
   SAFE-AREA — iPhone notch / Dynamic Island, Android cutouts
   Garante que chrome (marker, brand, counter, hint) nunca
   fique embaixo do notch. Padding lateral também respeita
   o entalhe em landscape.
   ════════════════════════════════════════════════════════ */
.slide-marker {
  top:  max(clamp(40px, 4vw, 64px), env(safe-area-inset-top));
  left: max(clamp(48px, 6vw, 120px), env(safe-area-inset-left));
}
.brand-mark {
  top:   max(clamp(28px, 3vw, 48px), env(safe-area-inset-top));
  right: max(clamp(48px, 6vw, 120px), env(safe-area-inset-right));
}
.counter {
  bottom: max(clamp(28px, 3vw, 48px), env(safe-area-inset-bottom));
  right:  max(clamp(48px, 6vw, 120px), env(safe-area-inset-right));
}
.nav-hint {
  bottom: max(clamp(28px, 3vw, 48px), env(safe-area-inset-bottom));
  left:   max(clamp(48px, 6vw, 120px), env(safe-area-inset-left));
}
.slide {
  padding-left:  max(clamp(40px, 5.5vw, 100px), env(safe-area-inset-left));
  padding-right: max(clamp(40px, 5.5vw, 100px), env(safe-area-inset-right));
}


/* ════════════════════════════════════════════════════════
   PREFERS-REDUCED-MOTION — respeita preferência de
   acessibilidade do usuário (sistema operacional).
   ════════════════════════════════════════════════════════ */
@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;
  }
  .deck { transition: none !important; }
  .progress-bar { transition: none !important; }
}