/* ==========================================================
   ELEVATE — GLOBAL LAYOUT + TYPOGRAPHY
   Loaded after tokens.css. Defines reset, body, nav, footer.
   ========================================================== */

/* ===== RESET ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body-en);
  font-size: var(--body-size);
  line-height: var(--en-leading);
  color: var(--black-ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: 0;
  background: transparent;
  color: inherit;
}

ul, ol { list-style: none; }

::selection {
  background: var(--elevate-gold);
  color: var(--deep-navy);
}

/* ===== Skip link (a11y) ===== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--deep-navy);
  color: var(--white);
  padding: 1rem 1.5rem;
  z-index: var(--z-modal);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.75rem;
  transition: top var(--duration-base) var(--ease-out-expo);
}
.skip-link:focus { top: 0; }

/* ==========================================================
   GLOBAL NAV — fixed top, glass, text-mark left + links right
   No logo bars per Eric msg 1429.
   ========================================================== */

.global-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem clamp(1.5rem, 4vw, 4rem);
  min-height: var(--nav-height);
  background: var(--glass-dark);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--glass-border-soft);
  font-family: var(--font-body-en);
  font-size: var(--caption-size);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: background var(--duration-base) var(--ease-out-expo);
}

/* Light variant when nav sits over white sections */
.global-nav.is-light {
  background: rgba(255, 255, 255, 0.7);
  border-bottom-color: rgba(11, 18, 32, 0.06);
}
.global-nav.is-light .nav-brand-mark { color: var(--navy); }
.global-nav.is-light .global-nav-links a { color: rgba(11, 18, 32, 0.75); }
.global-nav.is-light .global-nav-links a:hover { color: var(--navy); }
.global-nav.is-light .nav-toggle span { background: var(--navy); }

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-brand-mark {
  font-family: var(--font-body-en);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.32em;
  text-transform: lowercase;
  color: rgba(255, 255, 255, 0.9);
  transition: color var(--duration-fast) var(--ease-out-expo);
}
.nav-brand:hover .nav-brand-mark { color: var(--elevate-gold); }

.global-nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.global-nav-links a {
  color: rgba(255, 255, 255, 0.75);
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--duration-fast) var(--ease-out-expo);
}

.global-nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--elevate-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out-expo);
}
.global-nav-links a:hover,
.global-nav-links a[aria-current="page"] {
  color: var(--elevate-gold);
}
.global-nav-links a:hover::after,
.global-nav-links a[aria-current="page"]::after {
  transform: scaleX(1);
}

/* ===== Mobile hamburger toggle ===== */
.nav-toggle {
  display: none;
  width: 28px;
  height: 22px;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  z-index: calc(var(--z-overlay) + 1);
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-out-expo),
              opacity var(--duration-fast) var(--ease-out-expo);
  transform-origin: center;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

/* ==========================================================
   FOOTER — full-width, glass on dark navy gradient
   ========================================================== */

.global-footer {
  background:
    radial-gradient(ellipse at 20% 0%, rgba(14, 124, 134, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(201, 164, 73, 0.12) 0%, transparent 55%),
    linear-gradient(180deg, var(--deep-navy) 0%, var(--black-ink) 100%);
  color: rgba(255, 255, 255, 0.7);
  padding: clamp(3rem, 7vw, 5rem) clamp(1.5rem, 4vw, 4rem) 2rem;
  position: relative;
  font-family: var(--font-body-en);
  font-size: var(--caption-size);
  letter-spacing: 0.06em;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  max-width: var(--max-content);
  margin: 0 auto 3rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.footer-brand-mark {
  font-family: var(--font-display-en);
  font-size: 1.6rem;
  letter-spacing: 0.04em;
  color: var(--white);
}
.footer-brand-statement {
  color: rgba(255, 255, 255, 0.55);
  max-width: 32ch;
  line-height: 1.6;
  letter-spacing: 0;
  text-transform: none;
}
.footer-tagline {
  color: var(--elevate-gold);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.7rem;
  margin-top: 0.5rem;
}
.footer-tagline-th {
  color: rgba(14, 124, 134, 0.85);
  font-family: var(--font-display-th);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: none;
  font-size: 0.95rem;
}

.footer-col-title {
  color: var(--white);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.7rem;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.04em;
  text-transform: none;
  font-size: 0.85rem;
  transition: color var(--duration-fast) var(--ease-out-expo);
}
.footer-links a:hover { color: var(--elevate-gold); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  max-width: var(--max-content);
  margin: 0 auto;
  padding-top: 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* ==========================================================
   SECTION + CONTENT PRIMITIVES
   ========================================================== */

main {
  min-height: calc(100vh - var(--nav-height));
}

.section {
  padding: var(--section-padding-y) var(--section-padding);
  position: relative;
}
.section-light {
  background: linear-gradient(180deg, var(--white) 0%, #F6F7F9 100%);
  color: var(--black-ink);
}
.section-dark {
  background:
    radial-gradient(ellipse at 20% 80%, rgba(201, 164, 73, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 20%, rgba(14, 124, 134, 0.28) 0%, transparent 55%),
    linear-gradient(135deg, var(--deep-navy) 0%, var(--navy) 100%);
  color: var(--white);
}

.container {
  max-width: var(--max-content);
  margin: 0 auto;
}
.container-wide {
  max-width: var(--max-grid);
  margin: 0 auto;
}

/* Heading scale */
h1, h2, h3, h4 {
  font-family: var(--font-display-en);
  letter-spacing: 0.02em;
  line-height: 1.05;
}
h1 { font-size: var(--hero-size); }
h2 { font-size: var(--title-size); }
h3 { font-size: var(--h2-size); }
h4 { font-size: var(--h3-size); }

p { line-height: var(--en-leading); }

/* Eyebrow / kicker — uppercase tracked-out caption */
.eyebrow {
  font-family: var(--font-body-en);
  font-size: var(--caption-size);
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--heritage-teal);
}

/* Gold rule (editorial separator) */
.gold-rule {
  width: 80px;
  height: 2px;
  background: var(--elevate-gold);
  margin: 1.5rem 0;
}
.gold-rule.center { margin-left: auto; margin-right: auto; }

/* Signal blue divider (cinematic) */
.divider-blue {
  width: 60px;
  height: 1px;
  background: var(--signal-blue);
  margin: 1rem auto;
}

/* ==========================================================
   PLACEHOLDER (Phase 2.1 only — removed when sections land)
   ========================================================== */
.phase-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: calc(100vh - var(--nav-height));
  padding: var(--section-padding);
  gap: 1.5rem;
}
.phase-placeholder .eyebrow { color: var(--elevate-gold); }
.phase-placeholder h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--white);
  max-width: 18ch;
}
.phase-placeholder p {
  color: rgba(255, 255, 255, 0.6);
  max-width: 50ch;
  line-height: 1.6;
}
.phase-placeholder .gold-rule { margin: 0.5rem auto; }
.phase-placeholder .meta {
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--font-body-en);
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  margin-top: 1rem;
}

/* ==========================================================
   RESPONSIVE — Mobile-first breakpoints
   ========================================================== */
@media (max-width: 900px) {
  .global-nav-links {
    position: fixed;
    inset: 0;
    background:
      radial-gradient(ellipse at 30% 70%, rgba(201, 164, 73, 0.18) 0%, transparent 55%),
      radial-gradient(ellipse at 70% 30%, rgba(14, 124, 134, 0.28) 0%, transparent 55%),
      linear-gradient(135deg, var(--deep-navy) 0%, var(--navy) 100%);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    font-size: 1.1rem;
    letter-spacing: 0.32em;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-base) var(--ease-out-expo);
    z-index: var(--z-overlay);
  }
  .global-nav-links.is-open {
    opacity: 1;
    pointer-events: auto;
  }
  .global-nav-links a {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1rem;
  }
  .nav-toggle { display: flex; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .footer-brand { grid-column: 1 / -1; }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ==========================================================
   REDUCED MOTION
   ========================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.2s !important;
    scroll-behavior: auto !important;
  }
}