/* =========================================================================
   Bâbbi Guimarães — Sellers page (Dark Luxury configuration)
   Layered on top of ../../colors_and_type.css — only the dark surface,
   page-specific component vocabulary, and scale overrides live here.
   ========================================================================= */

:root {
  /* === DARK SURFACES === */
  --dark-obsidian: #0B0B0F;   /* page base */
  --dark-onyx:     #16161C;   /* alternate sections, cards, nav-on-scroll */
  --dark-ash:      #1F1F26;   /* card hover ground */
  --dark-smoke:    #2A2A33;   /* 1px dividers, borders */

  /* === DARK TEXT === */
  --dark-ivory:    #E8E5DF;   /* primary on dark */
  --dark-lead:     #9A938B;   /* secondary on dark */
  --dark-ash-text: #5C5C65;   /* footer legal, tertiary */
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--dark-obsidian);
  color: var(--dark-ivory);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font-family: var(--font-ui); }

/* =========================================================================
   LAYOUT PRIMITIVES
   ========================================================================= */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-48);
}
.container--narrow    { max-width: 760px; }
.container--editorial { max-width: 640px; }
.container--cta       { max-width: 560px; }

/* Accent rule: 64px / 1px / accent */
.rule {
  display: block;
  width: 64px;
  height: 1px;
  background: var(--accent);
  border: 0;
  margin: 0 0 var(--spacing-40) 0;
}
.rule--centered { margin: 0 auto var(--spacing-48); }

/* =========================================================================
   NAV
   ========================================================================= */

.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 50;
  height: 72px;
  display: flex; align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.nav.is-scrolled {
  background: rgba(11, 11, 15, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom-color: var(--dark-smoke);
}
.nav__inner {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-48);
  display: flex; align-items: center; justify-content: space-between;
}
.nav__wordmark {
  font-family: var(--font-display);
  font-weight: var(--weight-light);
  font-size: 15px;
  color: var(--dark-ivory);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav__links {
  display: flex; align-items: center; gap: var(--spacing-32);
}
.nav__link {
  font-family: var(--font-ui);
  font-weight: var(--weight-regular);
  font-size: 14px;
  color: var(--dark-ivory);
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
}
.nav__link:hover { color: var(--dark-lead); }

/* Hamburger — hidden on desktop, shown via media query */
.nav__toggle {
  display: none;
  width: 40px; height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--dark-smoke);
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: border-color var(--transition-fast);
}
.nav__toggle:hover { border-color: var(--dark-ash-text); }
.nav__toggle span {
  display: block;
  width: 16px; height: 1px;
  background: var(--dark-ivory);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav.is-open .nav__toggle span:nth-child(1) {
  transform: translateY(3px) rotate(45deg);
}
.nav.is-open .nav__toggle span:nth-child(2) {
  transform: translateY(-3px) rotate(-45deg);
}

/* Dark outlined CTA — nav, hero, final CTA */
.btn-outline-dark {
  display: inline-flex; align-items: center; gap: 10px;
  background: transparent;
  color: var(--dark-ivory);
  font-family: var(--font-ui);
  font-size: 16px;
  font-weight: var(--weight-regular);
  letter-spacing: 0.02em;
  padding: 14px 32px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-std), border-color var(--transition-std);
}
.btn-outline-dark:hover {
  background: var(--accent);
  border-color: var(--accent);
}
.btn-outline-dark:focus-visible {
  outline: none; box-shadow: var(--shadow-focus);
}
.btn-outline-dark--sm {
  padding: 10px 20px;
  font-size: 14px;
}
.btn-outline-dark--wide {
  padding: 14px 32px;
  letter-spacing: 0.04em;
}

/* =========================================================================
   02 — HERO
   ========================================================================= */

.hero {
  position: relative;
  height: 100vh;
  min-height: 720px;
  background: var(--dark-obsidian);
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  filter: grayscale(100%) contrast(1.08);
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(11, 11, 15, 0.55) 0%,
    rgba(11, 11, 15, 0.42) 35%,
    rgba(11, 11, 15, 0.70) 80%,
    rgba(11, 11, 15, 0.92) 100%
  );
}
.hero__content {
  position: relative;
  z-index: 2;
  height: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-48) 96px;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.hero__headline {
  font-family: var(--font-display);
  font-weight: var(--weight-thin);  /* 200 */
  font-size: 96px;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--dark-ivory);
  margin: 0 0 var(--spacing-28);
  max-width: 14ch;
}
.hero__sub {
  font-family: var(--font-ui);
  font-weight: var(--weight-light);
  font-size: 20px;
  line-height: 1.5;
  color: var(--dark-lead);
  margin: 0 0 var(--spacing-48);
  max-width: 32ch;
}
.hero__cta { align-self: flex-start; }

.hero__cue {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  font-family: var(--font-ui);
  font-weight: var(--weight-regular);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dark-ash-text);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.hero__cue::after {
  content: "";
  width: 1px; height: 32px;
  background: var(--dark-smoke);
}

/* =========================================================================
   03 — CONFIDENTIALITY STATEMENT
   ========================================================================= */

.confidentiality {
  background: var(--dark-obsidian);
  padding: var(--spacing-128) var(--spacing-48);
  text-align: center;
}
.confidentiality__text {
  font-family: var(--font-display);
  font-weight: var(--weight-light);
  font-size: 36px;
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: var(--dark-ivory);
  max-width: 760px;
  margin: 0 auto;
}
.confidentiality__text span { display: block; }

/* =========================================================================
   04 — ASSET CLASSES
   ========================================================================= */

.assets {
  background: var(--dark-onyx);
  padding: var(--spacing-128) 0;
}
.section-head {
  margin-bottom: 64px;
}
.section-head__title {
  font-family: var(--font-display);
  font-weight: var(--weight-light);
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--dark-ivory);
  margin: 0;
}
.assets__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-24);
}
.asset-panel {
  background: var(--dark-onyx);
  border: 1px solid var(--dark-smoke);
  display: flex; flex-direction: column;
  transition: border-color var(--transition-std);
  overflow: hidden;
}
.asset-panel:hover {
  border-color: var(--dark-ash-text);
}
.asset-panel__img {
  aspect-ratio: 16 / 9;
  background-size: cover;
  background-position: center;
  filter: grayscale(100%) contrast(1.1);
  transition: filter var(--transition-std);
}
.asset-panel:hover .asset-panel__img {
  filter: grayscale(100%) contrast(1.1) brightness(1.05);
}
.asset-panel__body {
  padding: var(--spacing-32);
  background: var(--dark-onyx);
  transition: background var(--transition-std);
  flex: 1;
}
.asset-panel:hover .asset-panel__body {
  background: var(--dark-ash);
}
.asset-panel__label {
  font-family: var(--font-display);
  font-weight: var(--weight-light);
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--dark-ivory);
  margin: 0 0 12px;
}
.asset-panel__body p {
  font-family: var(--font-ui);
  font-weight: var(--weight-light);
  font-size: 16px;
  line-height: 1.65;
  color: var(--dark-lead);
  margin: 0;
}

/* =========================================================================
   05 — HOW IT WORKS
   ========================================================================= */

.process {
  background: var(--dark-obsidian);
  padding: var(--spacing-128) 0;
}
.process__list {
  list-style: none;
  margin: 0; padding: 0;
}
.process__step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--spacing-40);
  padding: var(--spacing-40) 0;
  border-top: 1px solid var(--dark-smoke);
  align-items: start;
}
.process__step:last-child {
  border-bottom: 1px solid var(--dark-smoke);
}
.process__num {
  font-family: var(--font-ui);
  font-weight: var(--weight-regular);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark-lead);
  padding-top: 10px;
  font-variant-numeric: tabular-nums;
}
.process__num em {
  font-style: normal;
  color: var(--accent);
}
.process__title {
  font-family: var(--font-display);
  font-weight: var(--weight-light);
  font-size: 24px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--dark-ivory);
  margin: 0 0 8px;
}
.process__body {
  font-family: var(--font-ui);
  font-weight: var(--weight-light);
  font-size: 16px;
  line-height: 1.65;
  color: var(--dark-lead);
  margin: 0;
  max-width: 56ch;
}

/* =========================================================================
   06 — CREDENTIALS (numbers)
   ========================================================================= */

.credentials {
  background: var(--dark-onyx);
  padding: var(--spacing-96) 0;
}
.credentials__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.credential {
  padding: var(--spacing-24) var(--spacing-32);
  border-right: 1px solid var(--dark-smoke);
}
.credential:last-child { border-right: 0; }
.credential__num {
  font-family: var(--font-display);
  font-weight: var(--weight-thin);
  font-size: 64px;
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--dark-ivory);
  font-variant-numeric: tabular-nums;
  margin: 0 0 12px;
}
.credential__label {
  font-family: var(--font-ui);
  font-weight: var(--weight-regular);
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--dark-lead);
  line-height: 1.4;
}

/* =========================================================================
   07 — INTRODUCTION CTA
   ========================================================================= */

.cta-final {
  background: var(--dark-obsidian);
  padding: 160px var(--spacing-48);
  text-align: center;
}
.cta-final__inner {
  max-width: 560px;
  margin: 0 auto;
  display: flex; flex-direction: column; align-items: center;
}
.cta-final__heading {
  font-family: var(--font-display);
  font-weight: var(--weight-light);
  font-size: 44px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--dark-ivory);
  margin: 0 0 var(--spacing-32);
}
.cta-final__sub {
  font-family: var(--font-ui);
  font-weight: var(--weight-light);
  font-size: 18px;
  line-height: 1.6;
  color: var(--dark-lead);
  margin: 0 0 var(--spacing-48);
}
.cta-final__contact {
  font-family: var(--font-ui);
  font-weight: var(--weight-light);
  font-size: 14px;
  color: var(--dark-lead);
  margin-top: 20px;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.cta-final__contact:hover {
  color: var(--dark-ivory);
  border-bottom-color: var(--dark-ivory);
}

/* =========================================================================
   08 — FOOTER
   ========================================================================= */

.footer {
  background: var(--dark-obsidian);
  border-top: 1px solid var(--dark-smoke);
  padding: var(--spacing-96) 0 var(--spacing-48);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--spacing-64);
  margin-bottom: var(--spacing-64);
}
.footer__wordmark {
  font-family: var(--font-display);
  font-weight: var(--weight-light);
  font-size: 18px;
  color: var(--dark-ivory);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 var(--spacing-20);
}
.footer__tagline {
  font-family: var(--font-ui);
  font-weight: var(--weight-light);
  font-size: 14px;
  line-height: 1.55;
  color: var(--dark-lead);
  margin: 0;
  max-width: 36ch;
}
.footer__links {
  display: flex; flex-direction: column;
  gap: var(--spacing-12);
  align-items: flex-end;
}
.footer__link {
  font-family: var(--font-ui);
  font-weight: var(--weight-regular);
  font-size: 14px;
  color: var(--dark-lead);
  transition: color var(--transition-fast);
}
.footer__link:hover { color: var(--dark-ivory); }
.footer__divider {
  height: 1px;
  background: var(--dark-smoke);
  margin: 0 0 var(--spacing-32);
}
.footer__legal {
  display: flex; flex-direction: column;
  gap: 8px;
  font-family: var(--font-ui);
  font-weight: var(--weight-regular);
  font-size: 11px;
  color: var(--dark-ash-text);
  letter-spacing: 0.02em;
}

/* =========================================================================
   RESPONSIVE — tablet and mobile adaptations
   ========================================================================= */

/* === TABLET — 960px and below === */
@media (max-width: 960px) {
  .container, .nav__inner, .hero__content { padding-left: 24px; padding-right: 24px; }
  .hero__headline { font-size: 60px; }
  .confidentiality__text { font-size: 26px; }
  .section-head__title { font-size: 28px; }
  .assets__grid { grid-template-columns: 1fr; }
  .credentials__grid { grid-template-columns: repeat(2, 1fr); }
  .credential { border-right: 0; border-bottom: 1px solid var(--dark-smoke); }
  .credential:nth-last-child(-n+2) { border-bottom: 0; }
  .credential__num { font-size: 48px; }
  .cta-final__heading { font-size: 32px; }
  .process__step { grid-template-columns: 1fr; gap: var(--spacing-12); }
  .process__num { padding-top: 0; }
  .footer__grid { grid-template-columns: 1fr; gap: var(--spacing-40); }
  .footer__links { align-items: flex-start; }
}

/* === MOBILE — 720px and below ===
   Collapse nav into hamburger, tighten section padding, scale type. */
@media (max-width: 720px) {
  /* --- Nav: hamburger reveal --- */
  .nav { height: 60px; }
  .nav__inner { padding: 0 20px; }
  .nav__wordmark { font-size: 13px; letter-spacing: 0.05em; }
  .nav__toggle { display: flex; }

  .nav__links {
    position: fixed;
    top: 60px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(11, 11, 15, 0.98);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--dark-smoke);
    padding: var(--spacing-16) 20px var(--spacing-24);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }
  .nav.is-open .nav__links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav__link {
    padding: var(--spacing-16) 0;
    border-bottom: 1px solid var(--dark-smoke);
    font-size: 16px;
  }
  .nav__links .btn-outline-dark {
    margin-top: var(--spacing-16);
    justify-content: center;
    padding: 14px 24px;
    font-size: 14px;
  }

  /* --- Sections: tighter vertical rhythm --- */
  .confidentiality { padding: var(--spacing-80) 20px; }
  .assets,
  .process { padding: var(--spacing-80) 0; }
  .credentials { padding: var(--spacing-64) 0; }
  .cta-final { padding: var(--spacing-96) 20px; }
  .footer { padding: var(--spacing-64) 0 var(--spacing-32); }

  .container, .nav__inner, .hero__content { padding-left: 20px; padding-right: 20px; }

  /* --- Hero --- */
  .hero { min-height: 600px; }
  .hero__content { padding-bottom: 80px; }
  .hero__headline {
    font-size: 44px;
    letter-spacing: -0.025em;
    max-width: 100%;
  }
  .hero__sub {
    font-size: 17px;
    margin-bottom: var(--spacing-32);
    max-width: 100%;
  }
  .hero__cta {
    align-self: stretch;
    text-align: center;
    justify-content: center;
  }
  .hero__cue { font-size: 9px; bottom: 24px; }
  .hero__cue::after { height: 24px; }

  /* --- Confidentiality --- */
  .confidentiality__text { font-size: 22px; line-height: 1.4; }
  .rule--centered { margin-bottom: var(--spacing-32); }

  /* --- Section heads --- */
  .section-head { margin-bottom: var(--spacing-40); }
  .section-head__title { font-size: 26px; }
  .rule { margin-bottom: var(--spacing-28); }

  /* --- Asset panels --- */
  .asset-panel__body { padding: var(--spacing-24); }
  .asset-panel__label { font-size: 22px; }
  .asset-panel__body p { font-size: 15px; }

  /* --- Process --- */
  .process__step { padding: var(--spacing-28) 0; }
  .process__title { font-size: 20px; }
  .process__body { font-size: 15px; }

  /* --- Credentials: single column --- */
  .credentials__grid { grid-template-columns: 1fr; }
  .credential {
    padding: var(--spacing-24) 0;
    text-align: left;
    border-right: 0;
    border-bottom: 1px solid var(--dark-smoke);
  }
  .credential:last-child { border-bottom: 0; }
  .credential__num { font-size: 44px; margin-bottom: 8px; }

  /* --- Final CTA --- */
  .cta-final__heading { font-size: 28px; margin-bottom: var(--spacing-24); }
  .cta-final__sub { font-size: 16px; margin-bottom: var(--spacing-32); }
  .btn-outline-dark--wide {
    width: 100%;
    justify-content: center;
    padding: 16px 24px;
  }
  .cta-final__contact { font-size: 13px; margin-top: var(--spacing-24); }

  /* --- Footer --- */
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-32);
    margin-bottom: var(--spacing-40);
  }
  .footer__wordmark { font-size: 15px; }
  .footer__legal {
    gap: var(--spacing-8);
    font-size: 10px;
  }
}

/* === SMALL MOBILE — 380px and below === */
@media (max-width: 380px) {
  .hero__headline { font-size: 38px; }
  .confidentiality__text { font-size: 19px; }
  .credential__num { font-size: 36px; }
  .cta-final__heading { font-size: 24px; }
}