/* ==========================================================================
   Roos Data Labs — folha de estilo do site institucional
   Paleta derivada dos quatro PNGs oficiais de logo (ver README.md > Paleta):
   - marrons/bronze escuro: cores literais do logo escuro  (#120e0b ... #5e493a)
   - prata quente: cores literais do logo claro              (#7d6c60 ... #e0dcd9)
   - #b3774c / #c98a5c / #e0b389: variações derivadas do matiz do logo (25°)
     com croma e luminância elevados para uso sobre fundo escuro.
   Nenhuma cor teal do Auros é usada como identidade.
   ========================================================================== */

:root {
  /* Superfícies (logo escuro: amostras mais escuras) */
  --ink: #0e0b09;
  --ink-2: #120e0b;
  --surface: #17120e;
  --surface-2: #1a1410;
  --surface-3: #241c16;

  /* Bronze (logo escuro) */
  --bronze-700: #241c16;
  --bronze-600: #2c221b;
  --bronze-500: #3e3026;
  --bronze-400: #4c3b2f;
  --bronze-300: #5e493a;
  /* variações de matiz preservado, para contraste sobre fundo escuro */
  --bronze: #b3774c;
  --bronze-strong: #c98a5c;
  --bronze-soft: #e0b389;

  /* Prata (logo claro) */
  --silver-1: #7d6c60;
  --silver-2: #a99e96;
  --silver-3: #c9c2bd;
  --silver-4: #e0dcd9;
  --white: #ffffff;

  --line: rgba(224, 220, 217, 0.12);
  --line-strong: rgba(224, 220, 217, 0.22);

  --text: var(--silver-4);
  --text-muted: var(--silver-2);
  --text-dim: var(--silver-1);

  --font-display: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --container: 1200px;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --gradient-bronze: linear-gradient(135deg, #c98a5c 0%, #b3774c 55%, #8a5a3a 100%);
  --gradient-silver: linear-gradient(120deg, #e0dcd9 0%, #c9c2bd 45%, #a99e96 100%);
  --gradient-text: linear-gradient(100deg, #e0dcd9 0%, #e0b389 52%, #c98a5c 100%);
  --glow-bronze: 0 18px 48px -18px rgba(179, 119, 76, 0.55);
  --shadow-card: 0 24px 60px -32px rgba(0, 0, 0, 0.9);
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background-color: var(--ink);
  color: var(--text);
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(70% 45% at 18% 0%, rgba(179, 119, 76, 0.14) 0%, transparent 62%),
    radial-gradient(60% 40% at 92% 12%, rgba(224, 220, 217, 0.06) 0%, transparent 60%);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--white);
}

h1 { font-size: clamp(2.4rem, 4.4vw, 4.25rem); }
h2 { font-size: clamp(1.9rem, 3vw, 2.6rem); }
h3 { font-size: clamp(1.15rem, 1.6vw, 1.4rem); }

p { margin: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section { padding: clamp(72px, 9vw, 132px) 0; position: relative; }
.section--tight { padding: clamp(48px, 6vw, 84px) 0; }
.section--line { border-top: 1px solid var(--line); }

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 200;
  background: var(--bronze);
  color: var(--ink-2);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 16px; }

/* ---------------------------------------------------------------- tipografia */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--bronze-soft);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--bronze);
}

.lead { font-size: clamp(1.02rem, 1.35vw, 1.16rem); color: var(--text-muted); }
.muted { color: var(--text-muted); }
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-head { max-width: 720px; margin-bottom: clamp(36px, 4vw, 60px); }
.section-head p { margin-top: 14px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center .eyebrow::before { display: none; }

.note {
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-dim);
  margin-top: 18px;
}
.note--center { text-align: center; }

/* ------------------------------------------------------------------- botões */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease,
    border-color 0.25s ease, color 0.25s ease;
}

.btn--primary {
  background: var(--gradient-bronze);
  color: var(--ink-2);
  box-shadow: var(--glow-bronze);
}
.btn--primary:hover { transform: translateY(-2px); }
.btn--ghost {
  background: rgba(224, 220, 217, 0.05);
  border-color: var(--line-strong);
  color: var(--silver-4);
}
.btn--ghost:hover { background: rgba(224, 220, 217, 0.11); border-color: var(--bronze); }
.btn--silver {
  background: var(--gradient-silver);
  color: var(--bronze-700);
}
.btn--silver:hover { transform: translateY(-2px); }

.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

:focus-visible {
  outline: 2px solid var(--bronze-soft);
  outline-offset: 3px;
  border-radius: 6px;
}

.visit-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--bronze-soft);
  font-size: 14px;
  font-weight: 600;
}
.visit-link::after { content: "→"; transition: transform 0.25s ease; }
.visit-link:hover::after { transform: translateX(4px); }

/* --------------------------------------------------------------------- nav */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 14px 0;
  transition: background-color 0.3s ease, border-color 0.3s ease, padding 0.3s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(14, 11, 9, 0.92);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
  padding: 8px 0;
}

.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav__brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.nav__brand img { height: 30px; width: auto; }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.25s ease;
}
.nav__links a:hover, .nav__links a[aria-current="true"] { color: var(--white); }
.nav__links .btn { padding: 11px 20px; font-size: 14px; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  background: none;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--silver-4);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__drawer {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 22px;
  padding: 32px;
  background: rgba(14, 11, 9, 0.97);
  backdrop-filter: blur(20px);
}
.nav__drawer[hidden] { display: none; }
.nav__drawer.is-open { display: flex; }
.nav__drawer a { font-size: 21px; font-weight: 600; color: var(--silver-3); }
.nav__drawer a:hover { color: var(--white); }

/* -------------------------------------------------------------------- hero */

.hero { position: relative; padding: clamp(128px, 15vw, 190px) 0 clamp(64px, 7vw, 96px); }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero h1 { margin: 20px 0 22px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.4px;
}
.hero__tags span::before { content: "—"; margin-right: 8px; color: var(--bronze); }
.hero__visual { position: relative; }
.hero__visual img { width: 100%; height: auto; filter: drop-shadow(0 40px 80px rgba(0, 0, 0, 0.55)); }
.hero__caption {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--text-dim);
  text-align: center;
}

/* -------------------------------------------------------------------- faixa */

.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 26px 0; overflow: hidden; }
.strip__label {
  font-size: 10.5px;
  letter-spacing: 2.6px;
  text-transform: uppercase;
  color: var(--text-dim);
  text-align: center;
  margin-bottom: 18px;
}
.marquee { display: flex; gap: 46px; width: max-content; animation: marquee 32s linear infinite; }
.marquee span { font-size: 14px; color: var(--silver-2); white-space: nowrap; opacity: 0.7; }
.marquee span::after { content: "·"; margin-left: 46px; color: var(--bronze-400); }

@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* -------------------------------------------------------------- resultados */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.stat {
  padding: 26px 24px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(224, 220, 217, 0.045), rgba(224, 220, 217, 0.012));
}
.stat__value {
  font-size: clamp(2rem, 3vw, 2.7rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat__label { margin-top: 8px; font-size: 13px; color: var(--text-muted); }
.stat__source {
  display: block;
  margin-top: 12px;
  font-size: 10.5px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--bronze);
}
.band-title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 22px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--silver-2);
}
.band-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.band + .band { margin-top: 46px; }

/* ---------------------------------------------------------------- soluções */

.cards { display: grid; gap: 18px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(36, 28, 22, 0.75), rgba(18, 14, 11, 0.85));
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.card:hover { border-color: rgba(179, 119, 76, 0.45); transform: translateY(-3px); }
.card__icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 14px;
  border: 1px solid rgba(179, 119, 76, 0.3);
  background: rgba(179, 119, 76, 0.08);
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--text-muted); }
.card ul {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  font-size: 13.5px;
  color: var(--silver-2);
}
.card li { display: flex; gap: 10px; }
.card li::before { content: ""; width: 5px; height: 5px; margin-top: 9px; border-radius: 50%; background: var(--bronze); flex: 0 0 auto; }

/* ----------------------------------------------------------------- produtos */

.products { display: grid; gap: 18px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.product {
  display: flex;
  flex-direction: column;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(36, 28, 22, 0.9), rgba(18, 14, 11, 0.95));
}
.product__tag {
  align-self: flex-start;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(224, 220, 217, 0.18);
  font-size: 10.5px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--silver-3);
}
.product h3 { margin: 18px 0 10px; }
.product p { font-size: 14.5px; color: var(--text-muted); }
.product .visit-link { margin-top: 22px; }
.product__url { display: block; margin-top: 8px; font-size: 12px; color: var(--text-dim); word-break: break-all; }

/* ----------------------------------------------------------------- contato */

.contact { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(32px, 5vw, 64px); }
.contact__aside a.mail {
  color: var(--bronze-soft);
  font-weight: 600;
  border-bottom: 1px solid rgba(224, 179, 137, 0.4);
}
.contact__list { margin: 26px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; font-size: 14px; color: var(--text-muted); }
.contact__list li { display: flex; gap: 10px; }
.contact__list li::before { content: "—"; color: var(--bronze); }

.form {
  padding: clamp(24px, 3vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(26, 20, 16, 0.9), rgba(14, 11, 9, 0.92));
}
.field { margin-bottom: 18px; }
.field label {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--silver-3);
}
.field input,
.field textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: rgba(224, 220, 217, 0.04);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 15px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.field textarea { min-height: 128px; resize: vertical; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--bronze);
  box-shadow: 0 0 0 3px rgba(179, 119, 76, 0.18);
}
.field__error { display: none; margin-top: 6px; font-size: 12px; color: #e7906f; }
.field.has-error input,
.field.has-error textarea { border-color: #c9704a; }
.field.has-error .field__error { display: block; }
.field__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__status { min-height: 22px; margin: 4px 0 12px; font-size: 13.5px; }
.form__status[data-state="success"] { color: #8fc6a0; }
.form__status[data-state="error"] { color: #e7906f; }
.form__status[data-state="pending"] { color: var(--silver-2); }
.form__status a { color: var(--bronze-soft); font-weight: 600; border-bottom: 1px solid rgba(224, 179, 137, 0.4); }

.form__submit { width: 100%; justify-content: center; }
.form__spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(18, 14, 11, 0.35);
  border-top-color: var(--ink-2);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.form.is-loading .form__spinner { display: block; }
.form.is-loading .form__submit-label { opacity: 0.7; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ------------------------------------------------------------------ footer */

.footer { border-top: 1px solid var(--line); padding: 46px 0 34px; }
.footer__grid { display: flex; flex-wrap: wrap; gap: 28px; justify-content: space-between; align-items: flex-start; }
.footer__brand img { height: 26px; width: auto; }
.footer__brand p { margin-top: 12px; font-size: 13px; color: var(--text-dim); max-width: 320px; }
.footer__cols { display: flex; gap: clamp(28px, 5vw, 64px); flex-wrap: wrap; }
.footer__col h4 {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--silver-3);
  margin-bottom: 12px;
  font-weight: 600;
}
.footer__col a { display: block; font-size: 13.5px; color: var(--text-muted); padding: 4px 0; }
.footer__col a:hover { color: var(--white); }
.footer__legal {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--text-dim);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  justify-content: space-between;
}

/* ------------------------------------------------------------------ reveal */

.reveal--d1 { --reveal-delay: 0.08s; }
.reveal--d2 { --reveal-delay: 0.16s; }
.reveal--d3 { --reveal-delay: 0.24s; }
.lead--tight { margin-top: 14px; }

.js .reveal { opacity: 0; transform: translateY(18px); }
.js .reveal.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s cubic-bezier(0.2, 0.5, 0.3, 1), transform 0.7s cubic-bezier(0.2, 0.5, 0.3, 1);
  transition-delay: var(--reveal-delay, 0s);
}
.js .reveal.is-visible.eager { transition: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal,
  .js .reveal.is-visible { opacity: 1; transform: none; transition: none; }
  .marquee { animation: none; }
  .form__spinner { animation: none; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

/* ------------------------------------------------------------ responsivo */

@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: minmax(0, 1fr); }
  .hero__visual { order: -1; max-width: 520px; margin: 0 auto; }
  .contact { grid-template-columns: minmax(0, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .cards, .products { grid-template-columns: minmax(0, 1fr); }
  .section { padding: 68px 0; }
  .stat { padding: 22px 18px; }
  .footer__grid { flex-direction: column; }
}

/* Sem JavaScript: a navegação continua alcançável no documento,
   sem depender do drawer controlado por script. */
html:not(.js) .nav { position: static; border-bottom-color: var(--line); }
html:not(.js) .nav__inner { flex-wrap: wrap; row-gap: 14px; }
html:not(.js) .nav__links { display: flex; flex-wrap: wrap; gap: 10px 18px; }
html:not(.js) .nav__toggle { display: none !important; }
html:not(.js) .nav__drawer { display: none !important; }

@media (max-width: 460px) {
  .stat-grid { grid-template-columns: minmax(0, 1fr); }
  .container { padding: 0 18px; }
  .hero__actions .btn { width: 100%; justify-content: center; }
}