/* ============================================================
   CTAD — Case study bespoke, deliberadamente à parte do resto
   do site (sem .glass, sem aurora, sem Bebas Neue). Disciplina
   de performance: sem backdrop-filter, sem loops infinitos caros,
   só transform/opacity/clip-path animados, tudo rAF/IntersectionObserver.
   ============================================================ */

:root {
  --void: #0a0a0a;
  --panel: #141414;
  --hairline: rgba(244, 241, 250, 0.12);
  --ink: #f4f1fa;
  --ink-dim: rgba(244, 241, 250, 0.55);
  --red: #c1272d;
  --radius: 4px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --mono: "Space Mono", "SF Mono", ui-monospace, monospace;
}

/* Custom property tipada: permite ao browser interpolar --reveal como número,
   e qualquer propriedade que a use via calc()/var() anima com ela — sem JS por frame. */
@property --reveal {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--void);
  color: var(--ink);
  font-family: var(--mono);
  overflow-x: hidden;
  /* Grelha técnica estática, custo de render mínimo — substitui o "aurora" do resto do site */
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 39px, var(--hairline) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, var(--hairline) 40px),
    radial-gradient(ellipse at 50% 0%, rgba(193, 39, 45, 0.08), transparent 60%);
  background-attachment: fixed;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* Separador em segundo plano: pausa o vídeo (via JS) — nada de CSS a animar aqui para pausar. */

::selection { background: rgba(193, 39, 45, 0.4); color: var(--ink); }

/* ---------- Revelação por scroll (--reveal tipada, um IntersectionObserver, zero JS por frame) ---------- */
.reveal-target {
  --reveal: 0;
  opacity: var(--reveal);
  clip-path: inset(calc((1 - var(--reveal)) * 100%) 0 0 0);
  transition: --reveal 900ms var(--ease);
  transition-delay: calc(var(--d, 0) * 70ms);
}

/* ---------- Barra HUD fixa ---------- */
.hud-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
  background: rgba(10, 10, 10, 0.92);
  border-bottom: 1px solid var(--hairline);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hud-case { color: var(--ink-dim); }

.hud-logo {
  height: 20px;
  width: auto;
  opacity: 0.92;
}

.hud-back {
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 0.3s var(--ease);
}

.hud-back:hover,
.hud-back:focus-visible { color: var(--ink); }

/* ---------- Layout base das secções ---------- */
main { padding-top: 3.5rem; }

.ctad-hero,
.ctad-section {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem 1.5rem;
}

/* Spotlight subtil que segue o cursor — uma única camada fixa cobrindo a página
   inteira (não presa a nenhuma secção), só desktop com rato fino, sem blur/filter,
   atualizada via rAF em ctad.js */
@media (hover: hover) and (pointer: fine) {
  .ctad-glow {
    position: fixed;
    inset: 0;
    z-index: -1;
    opacity: 0;
    background: radial-gradient(560px circle at var(--sx, 50%) var(--sy, 50%), rgba(193, 39, 45, 0.1), transparent 45%);
    transition: opacity 0.4s var(--ease);
    pointer-events: none;
  }
}

/* Gotas de suor — ambiente de esforço/ginásio, camada fixa atrás do conteúdo,
   só transform/opacity animados (sem JS, sem custo por frame). */
.sweat-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.drop {
  position: absolute;
  top: -6%;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(244, 241, 250, 0.4), rgba(244, 241, 250, 0.05));
  opacity: 0;
  animation: drop-fall linear infinite;
}

@keyframes drop-fall {
  0% { transform: translateY(0); opacity: 0; }
  8% { opacity: 0.16; }
  85% { opacity: 0.16; }
  100% { transform: translateY(112vh); opacity: 0; }
}

.section-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--red);
  margin: 0 0 0.75rem;
}

.section-title {
  font-family: var(--display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 0.9;
  letter-spacing: -0.01em;
  margin: 0 0 2.5rem;
}

/* Cantoneiras tipo mira de câmara/viewfinder — substituem a moldura de vidro do resto do site */
.frame-corners {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.frame-corners::before,
.frame-corners::after,
.hero-frame::before,
.hero-frame::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border: 2px solid var(--red);
}

.hero-frame::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.hero-frame::after { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.frame-corners::before { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.frame-corners::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }

/* ---------- Hero ---------- */
.ctad-hero {
  padding-top: 4rem;
  display: grid;
  gap: 3rem;
}

.hero-frame {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--hairline);
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.hero-frame video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.frame-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  padding: 0.35rem 0.6rem;
  background: rgba(10, 10, 10, 0.7);
  border: 1px solid var(--hairline);
}

.rec-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red);
  animation: rec-blink 1.6s ease-in-out infinite;
}

@keyframes rec-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

.case-label {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--ink-dim);
  margin: 0 0 1rem;
}

.hero-title {
  font-family: var(--display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: clamp(4rem, 14vw, 9rem);
  line-height: 0.82;
  letter-spacing: -0.01em;
  margin: 0 0 1.5rem;
}

.hero-subtitle {
  font-family: var(--display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  letter-spacing: 0.02em;
  color: var(--red);
  margin: 0 0 1.5rem;
}

.hero-desc {
  color: var(--ink-dim);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 60ch;
  margin: 0 0 2rem;
}

.section-text {
  color: var(--ink-dim);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 65ch;
  margin: 0 0 2rem;
}

.spec-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
}

/* ---------- A Marca: logo em destaque no topo, texto e paleta a seguir ---------- */
.mark-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  background: var(--panel);
  border: 1px solid var(--hairline);
}

.mark-stage--hero {
  padding: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: 3rem;
}

.mark-stage--hero .mark-img {
  max-width: 720px;
  margin: 0 auto;
}

.mark-img {
  display: block;
  width: 100%;
  height: auto;
}

.palette-lab {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.lab-swatch {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.5rem;
  background: var(--void);
}

.lab-chip {
  width: 100%;
  height: 56px;
  border: 1px solid var(--hairline);
}

.lab-hex {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.lab-rgb {
  font-size: 0.7rem;
  color: var(--ink-dim);
  letter-spacing: 0.05em;
}

/* ---------- Aplicações: aplicações no terreno ---------- */
.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  margin-bottom: 1px;
}

.field-tile,
.gear-tile,
.screen-tile {
  position: relative;
  margin: 0;
  background: var(--panel);
}

.field-tile img,
.gear-tile img,
.screen-tile img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.field-tile figcaption,
.gear-tile figcaption,
.screen-tile figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
  border-top: 1px solid var(--hairline);
}

.totem-feature {
  position: relative;
  margin: 2rem 0 0;
  background: var(--panel);
  border: 1px solid var(--hairline);
}

.totem-feature img {
  display: block;
  width: 100%;
  max-height: 70vh;
  object-fit: cover;
}

.totem-feature figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
  border-top: 1px solid var(--hairline);
}

/* ---------- Materiais: equipamento + ecrãs ---------- */
.gear-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  margin-bottom: 1px;
}

.screen-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--hairline);
  border-left: 1px solid var(--hairline);
  border-right: 1px solid var(--hairline);
}

.screen-tile--wide {
  border: 1px solid var(--hairline);
  border-top: none;
}

.screen-tile--wide img { aspect-ratio: 21 / 9; }

/* ---------- Resultado: fecho ---------- */
.ctad-repeat { text-align: center; }
.ctad-repeat .section-title { margin-left: auto; margin-right: auto; }
.ctad-repeat .section-text { margin-left: auto; margin-right: auto; }

.result-stats {
  display: flex;
  justify-content: center;
  gap: clamp(1.5rem, 6vw, 4rem);
  padding: 2.5rem 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 2.5rem;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.stat-value {
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1;
  color: var(--red);
}

.stat-label {
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  color: var(--ink-dim);
  text-transform: uppercase;
}

.ctad-cta { margin-bottom: 3rem; }

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.75rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background 0.4s var(--ease), color 0.4s var(--ease), border-color 0.4s var(--ease);
}

.cta-btn:hover,
.cta-btn:focus-visible {
  background: var(--red);
  border-color: var(--red);
  color: var(--ink);
}

.ctad-signature {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
}

.ctad-privacy-link {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .hud-bar { padding: 0.75rem 1rem; font-size: 0.65rem; }
  .ctad-hero, .ctad-section { padding: 4rem 1.25rem; }
  .field-grid,
  .gear-grid,
  .screen-grid { grid-template-columns: 1fr; }
  .result-stats { gap: 1.75rem; flex-wrap: wrap; }
}