/* ============================================================
   Instituto FSC · Pós-Graduação em Engenharia Geotécnica
   Identidade visual: verde-floresta + laranja + branco
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  /* base escura (hero cinematográfico) — verde-floresta profundo */
  --color-bg-base:    #0a1c14;
  --color-ink-1:      #102a1f;   /* painel verde levemente mais claro */
  --color-ink-deep:   #123528;   /* verde escuro p/ texto sobre papel */

  /* acento da marca — laranja */
  --color-brand-500:  #ff4713;   /* laranja principal (era o dourado) */
  --color-brand-400:  #ff6a33;
  --color-brand-300:  #ff9d6b;   /* destaque claro (itálico / stats) */

  /* linhas / bordas */
  --color-line:        #1a3a2a;
  --color-line-strong: #294f3b;

  /* texto */
  --color-text-100: #ffffff;
  --color-text-300: #cfe1d7;
  --color-text-500: #93b1a2;
  --color-text-700: #56695e;

  /* superfície clara */
  --color-paper-50: #eef2ef;

  --color-signal-err: #ba0f27;

  --container-wide: 88rem;
  --dur-quick: .18s;
  --dur-page: .7s;

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", Menlo, monospace;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg-base);
  color: var(--color-text-100);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: 1.5rem;
}
@media (min-width: 768px) { .container { padding-inline: 2.5rem; } }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---------- Tipografia utilitária ---------- */
.headline-cinema {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 144, "SOFT" 30;
  letter-spacing: -.022em;
  color: var(--color-text-100);
  font-size: clamp(2.4rem, 3vw + 1.6rem, 5.25rem);
  font-weight: 700;
  line-height: 1;
  text-wrap: balance;
}
.headline-cinema .accent {
  color: var(--color-brand-300);
  font-style: italic;
  font-weight: 300;
  font-variation-settings: "opsz" 144, "SOFT" 100;
}
.headline-lg {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 60, "SOFT" 50;
  letter-spacing: -.015em;
  color: var(--color-text-100);
  font-size: clamp(1.9rem, 3vw + .5rem, 2.875rem);
  font-weight: 600;
  line-height: 1.08;
  text-wrap: balance;
  white-space: pre-line;
}
.eyebrow-mono {
  font-family: var(--font-mono);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--color-brand-500);
  font-size: .72rem;
  font-weight: 500;
}
.stamp-mono {
  font-family: var(--font-mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-text-500);
  font-size: .625rem;
  font-weight: 500;
}
.stat-display {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 144;
  letter-spacing: -.035em;
  color: var(--color-brand-300);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.75rem, 5vw + .5rem, 4.5rem);
  font-weight: 700;
  line-height: .9;
}

/* ---------- Reveal on scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur-page) ease, transform var(--dur-page) ease;
}
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero { position: relative; isolation: isolate; overflow: hidden; }
.hero__bg {
  position: absolute; inset: 0; z-index: -10;
  pointer-events: none; overflow: hidden;
}
.hero__bg img, .hero__bg video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.hero__bg video { opacity: 0; transition: opacity .7s ease; }
.hero__bg video.is-ready { opacity: 1; }
.hero__scrim {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 70% 45%, rgba(10,28,20,.35) 0%, rgba(10,28,20,.82) 100%),
    linear-gradient(180deg, rgba(10,28,20,.55) 0%, rgba(10,28,20,.32) 40%, rgba(10,28,20,.94) 100%);
}

/* header */
.site-header { position: relative; z-index: 30; width: 100%; }
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
}
.brand { display: inline-flex; align-items: center; gap: .75rem; }
.brand__mark { width: 34px; height: 34px; flex: none; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -.01em;
  color: var(--color-text-100);
  line-height: 1.1;
}
.brand__name .dot { color: var(--color-brand-500); }
.brand__sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-text-500);
}
.mec-badge {
  display: inline-flex; align-items: center; gap: .75rem;
  border: 1px solid color-mix(in srgb, var(--color-brand-500) 40%, transparent);
  background: color-mix(in srgb, var(--color-ink-1) 60%, transparent);
  backdrop-filter: blur(4px);
  padding: .5rem .75rem;
  border-radius: 3px;
}
.mec-badge__seal { width: auto; height: 40px; flex: none; object-fit: contain; }
.mec-badge__txt { line-height: 1.15; }
.mec-badge__txt small {
  display: block; font-family: var(--font-mono);
  font-size: 9px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--color-text-500);
}
.mec-badge__txt strong {
  display: block; font-size: 11px; font-weight: 600;
  color: var(--color-brand-300); letter-spacing: .02em;
}
@media (max-width: 640px) { .mec-badge__txt { display: none; } }

/* hero body */
.hero__body {
  position: relative; z-index: 10;
  padding-block: 2rem 2.5rem;
}
@media (min-width: 1024px) { .hero__body { padding-block: 6rem 3.5rem; } }
.hero__grid {
  display: grid; gap: 2.5rem; align-items: center;
}
@media (min-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1.05fr minmax(360px, 440px);
    gap: 4rem;
  }
}

.pill-row { display: inline-flex; align-items: center; gap: .75rem; margin-bottom: 1.25rem; }
.pill-row .rule { display: inline-block; width: 2rem; height: 1px; background: color-mix(in srgb, var(--color-brand-500) 70%, transparent); }

.badge-formado {
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  background: var(--color-brand-500);
  color: #ffffff;
  padding: .75rem 1.5rem;
  border-radius: 3px;
  width: min(460px, 100%);
  margin-bottom: 2.25rem;
  box-shadow: 0 10px 30px -10px color-mix(in srgb, var(--color-brand-500) 55%, transparent);
}
.badge-formado svg { flex: none; }
.badge-formado span {
  font-family: var(--font-mono);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: clamp(.92rem, 3vw, 1.05rem);
  line-height: 1.1;
  text-align: center;
  white-space: nowrap;
}
.badge-br { display: none; }
@media (max-width: 767px) { .badge-br { display: inline; } .badge-formado span { white-space: normal; } }

.hero__lead {
  margin-top: 2rem;
  font-size: clamp(1rem, 1.2vw + .7rem, 1.25rem);
  color: color-mix(in srgb, var(--color-text-100) 90%, transparent);
  max-width: 48ch;
  line-height: 1.6;
}

/* ---------- Formulário de captura ---------- */
.lead-card {
  position: relative;
  border: 1px solid color-mix(in srgb, var(--color-brand-500) 30%, transparent);
  background: color-mix(in srgb, var(--color-bg-base) 62%, transparent);
  backdrop-filter: blur(18px);
  padding: 1.75rem;
  border-radius: 10px;
  box-shadow: 0 24px 80px -30px rgba(0,0,0,.85);
}
@media (min-width: 768px) { .lead-card { padding: 1.85rem; } }
.lead-card h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  line-height: 1.15;
  margin-bottom: .25rem;
}
.lead-card__sub { font-size: .875rem; color: var(--color-text-300); margin-bottom: 1.25rem; }
.lead-fields { display: flex; flex-direction: column; gap: .875rem; }
.lead-input {
  width: 100%;
  background: color-mix(in srgb, var(--color-bg-base) 70%, #000 6%);
  border: 1px solid var(--color-line-strong);
  border-radius: 6px;
  padding: .8rem .95rem;
  color: var(--color-text-100);
  font-size: .95rem;
  transition: border-color var(--dur-quick), box-shadow var(--dur-quick);
}
.lead-input::placeholder { color: var(--color-text-500); }
.lead-input:focus {
  outline: none;
  border-color: var(--color-brand-500);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-brand-500) 22%, transparent);
}
.lead-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2393b1a2' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .9rem center;
  padding-right: 2.4rem;
}
.lead-select:invalid { color: var(--color-text-500); }
.lead-error { display: none; margin-top: .25rem; font-size: .75rem; color: var(--color-signal-err); }
.lead-error.show { display: block; }

.btn-primary {
  margin-top: 1.25rem;
  width: 100%;
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .9rem 1.5rem;
  background: var(--color-brand-500);
  color: #ffffff;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  font-size: 13px;
  border: 0;
  border-radius: 6px;
  transition: background var(--dur-quick), transform var(--dur-quick);
}
.btn-primary:hover { background: var(--color-brand-400); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { opacity: .6; cursor: not-allowed; }
.lead-legal { margin-top: 1rem; font-size: 10.5px; line-height: 1.5; color: var(--color-text-500); }

/* ============================================================
   FAIXA "veja mais informações" (papel)
   ============================================================ */
.paper-strip {
  position: relative;
  background: var(--color-paper-50);
  color: var(--color-ink-deep);
  background-image: radial-gradient(transparent, rgba(18,53,40,.05));
}
.paper-strip .container { padding-block: 2rem; text-align: center; }
.paper-strip p {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  letter-spacing: -.01em;
}
.hairline-brand {
  border-top: 1px solid;
  border-image: linear-gradient(90deg, transparent, rgba(255,71,19,.35), rgba(255,71,19,.55), rgba(255,71,19,.35), transparent) 1;
}

/* ============================================================
   Seções escuras genéricas
   ============================================================ */
.section { padding-block: 4rem; }
@media (min-width: 768px) { .section { padding-block: 6rem; } }
.section--base { background: var(--color-bg-base); }
.section--ink { background: var(--color-ink-1); }

.split {
  display: grid; gap: 3rem; align-items: center;
}
@media (min-width: 1024px) {
  .split { gap: 5rem; }
  .split--about { grid-template-columns: 1.1fr 1fr; }
  .split--even  { grid-template-columns: 1fr 1fr; }
}

.media-frame {
  position: relative; overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--color-line-strong);
}
.media-frame img, .media-frame video {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.media-frame.ar-43 { aspect-ratio: 4 / 3; }
.media-frame.ar-alunos { aspect-ratio: 1400 / 825; }
.media-frame.ar-169 { aspect-ratio: 16 / 9; }
.media-frame video { opacity: 0; transition: opacity .7s ease; }
.media-frame video.is-ready { opacity: 1; }

.prose { margin-top: 1.75rem; display: flex; flex-direction: column; gap: 1rem; max-width: 52ch; }
.prose p { font-size: clamp(.97rem, .3vw + .9rem, 1rem); color: var(--color-text-300); line-height: 1.7; }
.prose strong { color: var(--color-text-100); }

/* stat chip (quem somos) */
.stat-chip {
  margin-top: 2rem;
  display: inline-flex; align-items: stretch;
  border-radius: 4px; overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-brand-500) 30%, transparent);
  background: var(--color-ink-1);
}
.stat-chip__num { padding: 1rem 1.5rem; border-right: 1px solid color-mix(in srgb, var(--color-brand-500) 20%, transparent); }
.stat-chip__lbl { padding: 1rem 1.5rem; display: flex; align-items: center; max-width: 18rem; }
.stat-chip__lbl span { color: var(--color-text-300); font-family: var(--font-mono); font-size: .625rem; letter-spacing: .18em; text-transform: uppercase; line-height: 1.5; }

/* lista de checks (grupo) */
.check-list { margin-top: 1.75rem; display: flex; flex-direction: column; gap: .9rem; list-style: none; padding: 0; }
.check-list li { display: flex; align-items: flex-start; gap: .875rem; }
.check-list .tick {
  flex: none; margin-top: .15rem;
  display: grid; place-items: center;
  width: 24px; height: 24px; border-radius: 4px;
  background: var(--color-brand-500);
}
.check-list li span:last-child { font-size: clamp(.95rem, .3vw + .9rem, 1rem); color: var(--color-text-100); line-height: 1.6; }

/* ============================================================
   TICKER laranja
   ============================================================ */
.ticker {
  position: relative;
  background: var(--color-brand-500);
  padding-block: .8rem;
  overflow: hidden;
}
.ticker__track {
  display: inline-flex; align-items: center;
  white-space: nowrap;
  animation: ticker 32s linear infinite;
}
.ticker__track span {
  font-family: var(--font-mono);
  font-size: clamp(11px, 1vw, 13px);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .25em;
  color: var(--color-bg-base);
  padding-inline: clamp(1.5rem, 4vw, 2.5rem);
}
.ticker__track .sep { color: color-mix(in srgb, var(--color-bg-base) 55%, transparent); padding-inline: 0; }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .ticker__track { animation: none; } }

/* ============================================================
   Carrossel de prints (marquee)
   ============================================================ */
.carousel {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.carousel__track { display: flex; gap: 1.25rem; width: max-content; animation: scroll-x 34s linear infinite; }
.carousel:hover .carousel__track { animation-play-state: paused; }
.print-card {
  flex: 0 0 auto; width: 200px; aspect-ratio: 3/4;
  border-radius: 4px; overflow: hidden;
  border: 1px solid var(--color-line-strong);
  box-shadow: 0 20px 50px -20px rgba(0,0,0,.6);
  background: #fff;
  display: flex; flex-direction: column;
}
.print-card__top {
  width: 100%; height: auto; display: block;
  border-bottom: 1px solid #ececec;
}
.print-card__chat { flex: 1 1 auto; min-height: 0; overflow: hidden; }
.print-card__chat img { display: block; width: 100%; height: auto; margin-top: -25%; }
@keyframes scroll-x { from { transform: translateX(0); } to { transform: translateX(calc(-50% - .625rem)); } }
@media (prefers-reduced-motion: reduce) { .carousel__track { animation: none; } }

/* ============================================================
   BENEFÍCIOS
   ============================================================ */
.benefits { background: var(--color-ink-1); border-block: 1px solid var(--color-line-strong); }
.benefits .container { padding-block: 2.75rem; }
.benefits__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem 0; }
@media (min-width: 768px) { .benefits__grid { grid-template-columns: repeat(4, 1fr); gap: 0; } }
.benefit {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: .75rem;
  padding-inline: 1rem;
}
@media (min-width: 768px) { .benefit:not(:last-child) { border-right: 1px solid var(--color-line-strong); } }
.benefit__icon {
  display: grid; place-items: center;
  width: 48px; height: 48px; border-radius: 4px;
  border: 1px solid color-mix(in srgb, var(--color-brand-500) 40%, transparent);
  background: color-mix(in srgb, var(--color-bg-base) 60%, transparent);
}
.benefit span { font-size: 13px; font-weight: 600; color: var(--color-text-100); line-height: 1.35; white-space: pre-line; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: #061109; border-top: 1px solid var(--color-line); }
.site-footer .container { padding-block: 3.25rem; text-align: center; }
.footer-logo { display: inline-block; }
.footer-logo img { width: auto; height: 42px; margin-inline: auto; }
.site-footer__legal { margin-top: 1.25rem; font-size: 13px; color: var(--color-text-500); line-height: 1.7; }
.site-footer__mec { margin-top: .5rem; }