/* =============================================================
   SITE — Manoella Melim · Arquitetura de Interiores
   Estilos globais do site, construídos sobre os tokens do
   design system. Header, footer, tipografia e utilitários.
   ============================================================= */

* { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--surface-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: var(--fw-body);
  line-height: var(--lh-body);
}
img { display: block; max-width: 100%; }
a { color: inherit; }

/* visually hidden, still read by assistive tech */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0;
}

/* ---------------- Type helpers ---------------- */
.display { font-family: var(--font-display); font-weight: var(--fw-display-light); font-size: var(--fs-display); line-height: var(--lh-display); letter-spacing: var(--ls-display); text-transform: uppercase; }
.h1 { font-family: var(--font-display); font-weight: var(--fw-display-light); font-size: var(--fs-h1); line-height: var(--lh-heading); letter-spacing: var(--ls-heading); text-transform: uppercase; }
.h2 { font-family: var(--font-display); font-weight: var(--fw-display-light); font-size: var(--fs-h2); line-height: var(--lh-heading); letter-spacing: var(--ls-heading); text-transform: uppercase; }
.h3 { font-family: var(--font-display); font-weight: var(--fw-display); font-size: var(--fs-h3); line-height: var(--lh-tight); letter-spacing: var(--ls-h3); text-transform: uppercase; }
.lead { font-family: var(--font-body); font-weight: var(--fw-body-light); font-size: var(--fs-lead); line-height: var(--lh-body); }
.eyebrow { font-family: var(--font-body); font-weight: var(--fw-body-medium); font-size: var(--fs-label); letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--text-secondary); }
.caption { font-family: var(--font-body); font-weight: var(--fw-body); font-size: var(--fs-caption); letter-spacing: var(--ls-label-sm); text-transform: uppercase; color: var(--text-caption); }

/* ---------------- Link with goat underline ---------------- */
.link-underline {
  position: relative; text-decoration: none; display: inline-block;
  font-family: var(--font-body); font-weight: var(--fw-body-medium);
  font-size: var(--fs-label); letter-spacing: var(--ls-label);
  text-transform: uppercase; color: var(--text-primary); padding-bottom: 4px;
}
.link-underline::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.link-underline:hover::after, .link-underline.active::after { transform: scaleX(1); }
.link-underline.on-dark { color: var(--text-on-dark); }

/* ---------------- Keyboard focus — visible square ring ---------------- */
.link-underline:focus-visible,
.btn:focus-visible,
.nav-toggle:focus-visible,
.footnav a:focus-visible,
.footcol a:focus-visible {
  outline: 1px solid var(--focus-ring); outline-offset: 4px;
}

/* ---------------- Button (square, DS) ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  font-family: var(--font-body); font-weight: var(--fw-body-medium);
  font-size: var(--fs-label); letter-spacing: var(--ls-label); text-transform: uppercase;
  padding: 16px 28px; border: 1px solid var(--accent); background: transparent;
  color: var(--text-primary); text-decoration: none; cursor: pointer;
  border-radius: 0; transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn:hover { background: var(--accent-fill); border-color: var(--accent-fill); color: var(--text-on-accent); }
.btn .arrow { display: inline-block; width: 18px; height: 1px; background: currentColor; position: relative; }
.btn .arrow::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; transform: rotate(45deg); }

/* ================= SITE HEADER ================= */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px clamp(20px, 4vw, 48px);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), padding var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header .brand { display: block; line-height: 0; }
.site-header .brand img { height: 56px; width: auto; transition: opacity var(--dur) var(--ease); }

/* ---------------- Nav CTA — Contato as a button ---------------- */
.site-header .nav-cta {
  display: inline-flex; align-items: center;
  font-family: var(--font-body); font-weight: var(--fw-body-medium);
  font-size: var(--fs-label); letter-spacing: var(--ls-label); text-transform: uppercase;
  text-decoration: none; padding: 11px 22px;
  background: var(--accent-fill); color: var(--text-on-accent); border: 1px solid var(--accent-fill);
  border-radius: 0; cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.site-header .nav-cta:hover { background: var(--accent-pressed); color: var(--text-on-accent); border-color: var(--accent-pressed); }
.site-header .brand .logo-dark { display: none; }

.site-header nav ul { display: flex; gap: clamp(18px, 3vw, 44px); list-style: none; margin: 0; padding: 0; align-items: center; }

/* over-hero (transparent, light) */
.site-header.over-hero { background: transparent; border-bottom-color: var(--border-on-dark); }
.site-header.over-hero .brand .logo-light { display: block; }
.site-header.over-hero .brand .logo-dark { display: none; }
.site-header.over-hero .link-underline { color: var(--text-on-dark); }

/* solid (creme, dark) */
.site-header.solid { background: var(--surface-base); border-bottom-color: var(--border-hairline); padding-top: 14px; padding-bottom: 14px; }
.site-header.solid .brand img { height: 48px; }
.site-header.solid .brand .logo-light { display: none; }
.site-header.solid .brand .logo-dark { display: block; }
.site-header.solid .link-underline { color: var(--text-primary); }

/* ---------------- Mobile menu toggle ---------------- */
.nav-toggle {
  display: none;
  width: 44px; height: 44px; padding: 0;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  background: none; border: 0; cursor: pointer; color: var(--text-primary);
}
.site-header.over-hero .nav-toggle { color: var(--text-on-dark); }
.site-header.solid .nav-toggle { color: var(--text-primary); }
.nav-toggle span {
  display: block; width: 24px; height: 1.5px; background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur-fast) var(--ease);
}
.site-header.nav-open .nav-toggle span:first-child { transform: translateY(3.25px) rotate(45deg); }
.site-header.nav-open .nav-toggle span:last-child  { transform: translateY(-3.25px) rotate(-45deg); }

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .site-header nav { position: static; }
  .site-header nav ul {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    margin: 0; padding: var(--space-2xs) clamp(20px, 5vw, 48px) var(--space-md);
    background: var(--surface-base); border-bottom: 1px solid var(--border-hairline);
    transform: translateY(-10px); opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur) var(--ease);
  }
  .site-header.nav-open nav ul { transform: none; opacity: 1; visibility: visible; pointer-events: auto; }
  .site-header nav ul li { border-top: 1px solid var(--border-hairline); }
  .site-header nav ul li a.link-underline { display: block; padding: 18px 2px; width: 100%; }
  /* panel sits on cream — always dark ink, regardless of header mode */
  .site-header.over-hero nav ul li a.link-underline,
  .site-header.solid nav ul li a.link-underline { color: var(--text-primary); }
  /* CTA in mobile panel: full-width filled button */
  .site-header nav ul li:has(> .nav-cta) { border-top: 0; }
  .site-header nav ul .nav-cta {
    display: flex; justify-content: center; width: 100%;
    margin-top: var(--space-md); padding: 16px 22px;
    background: var(--accent-fill); color: var(--text-on-accent); border-color: var(--accent-fill);
  }
  .site-header.over-hero nav ul .nav-cta:hover,
  .site-header.solid nav ul .nav-cta:hover { background: var(--accent-pressed); color: var(--text-on-accent); border-color: var(--accent-pressed); }
  .site-header .brand img, .site-header.solid .brand img { height: 36px; }
}

/* ================= SITE FOOTER ================= */
.site-footer {
  background: var(--surface-base);
  border-top: 1px solid var(--border-hairline);
  padding: clamp(48px, 6vw, 96px) clamp(20px, 4vw, 48px) clamp(28px, 3vw, 40px);
}
.site-footer .footer-grid {
  max-width: var(--container-max); margin: 0 auto;
  display: grid; grid-template-columns: auto 1fr auto; gap: clamp(32px, 5vw, 96px); align-items: start;
}
.site-footer .seal img { height: 96px; width: auto; }
.footcol { display: flex; flex-direction: column; gap: var(--space-sm); }
.footcol .lbl { font-size: var(--fs-caption); letter-spacing: var(--ls-label-sm); text-transform: uppercase; color: var(--text-primary); font-weight: var(--fw-body-medium); margin-bottom: var(--space-2xs); }
.footcol a, .footcol span { font-size: var(--fs-small); letter-spacing: var(--ls-body); text-decoration: none; }
.footcol a { color: var(--text-secondary); font-weight: var(--fw-body-light); }
.footcol span:not(.lbl) { color: var(--text-primary); font-weight: var(--fw-body-medium); }
.footcol a:hover { color: var(--accent-text); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--accent); }
.footnav { display: flex; flex-direction: column; gap: var(--space-sm); align-items: flex-end; }
.footnav a { font-family: var(--font-body); font-weight: var(--fw-body-medium); font-size: var(--fs-label); letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--text-primary); text-decoration: none; }
.footnav a:hover { color: var(--accent-text); }
.footer-bottom { max-width: var(--container-max); margin: clamp(40px, 5vw, 72px) auto 0; padding-top: var(--space-lg); border-top: 1px solid var(--border-hairline); display: flex; justify-content: space-between; gap: var(--space-md); flex-wrap: wrap; }
.footer-bottom span { font-size: var(--fs-caption); letter-spacing: var(--ls-label-sm); text-transform: uppercase; color: var(--text-caption); }
@media (max-width: 720px) {
  .site-footer .footer-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .footnav { align-items: flex-start; }
}

/* ---------------- shared section rhythm ---------------- */
.section { padding: clamp(72px, 11vw, 168px) clamp(20px, 4vw, 64px); }
.container { max-width: var(--container-max); margin: 0 auto; }
.measure { max-width: var(--container-text); }