/* ════════════════════════════════════════
   NOX² — DESIGN SYSTEM V4
   Sand base · Dark hero · Gold accent
   Mobile-first. Editorial luxury.
   ════════════════════════════════════════ */

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

:root {
  /* ── Light palette ── */
  --sand:        #f0ebe2;
  --sand-2:      #e8e2d8;
  --sand-3:      #dfd8cc;
  --sand-4:      #d4ccbe;
  --cream:       #f7f4ef;

  /* ── Dark palette ── */
  --black:       #0a0a0a;
  --navy:        #0d1b2a;
  --navy-2:      #0f2236;

  /* ── Gold ── */
  --gold:        #c9a84c;
  --gold-dark:   #a8882e;
  --gold-light:  #dbbe78;
  --gold-dim:    rgba(201,168,76,0.14);
  --gold-border: rgba(201,168,76,0.3);

  /* ── Text ── */
  --ink:         #1a1612;
  --ink-2:       #3d3530;
  --ink-3:       #6b6158;
  --ink-ghost:   rgba(26,22,18,0.4);

  /* ── Borders ── */
  --border-light: rgba(26,22,18,0.1);
  --border-mid:   rgba(26,22,18,0.16);
  --border-dark:  rgba(26,22,18,0.25);
  --border-white: rgba(245,243,238,0.09);

  /* ── Fonts ── */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  /* ── Layout ── */
  --max-w:   1280px;
  --pad-x:   1.25rem;
}

/* ── BASE ── */
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── CONTAINER ── */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--pad-x); }

/* ── SECTION SPACING ── */
.section    { padding: 5rem var(--pad-x); }
.section-lg { padding: 7rem var(--pad-x); }

/* ── LABEL / EYEBROW ── */
.label {
  display: inline-flex; align-items: center; gap: 0.65rem;
  font-size: 0.62rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--gold-dark);
}
.label::before {
  content: ''; display: inline-block;
  width: 20px; height: 1px; background: var(--gold); flex-shrink: 0;
}
.label.light { color: var(--gold-light); }
.label.light::before { background: var(--gold-light); }

/* ── TYPOGRAPHY ── */
.display {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 8rem);
  font-weight: 700; line-height: 0.97;
  letter-spacing: -0.02em;
}
.display em { font-style: italic; color: var(--gold); }

.heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700; line-height: 1.05;
  letter-spacing: -0.01em; color: var(--ink);
}
.heading em { font-style: italic; color: var(--gold-dark); }
.heading.on-dark { color: #f5f3ee; }
.heading.on-dark em { color: var(--gold); }

.body-lg { font-size: 1rem; font-weight: 300; color: var(--ink-2); line-height: 1.85; }
.body-md { font-size: 0.9rem; font-weight: 300; color: var(--ink-3); line-height: 1.8; }
.body-sm { font-size: 0.8rem; font-weight: 300; color: var(--ink-3); line-height: 1.75; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-body); font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  text-decoration: none; cursor: pointer; border: none;
  transition: all 0.22s ease; white-space: nowrap;
}
.btn-gold {
  background: var(--gold); color: var(--black);
  padding: 1rem 2.25rem;
}
.btn-gold:hover { background: var(--gold-dark); transform: translateY(-1px); }

.btn-dark {
  background: var(--ink); color: var(--sand);
  padding: 1rem 2.25rem;
}
.btn-dark:hover { background: var(--navy); transform: translateY(-1px); }

.btn-outline-dark {
  background: transparent; color: var(--ink);
  border: 1px solid var(--border-dark); padding: 0.95rem 2.25rem;
}
.btn-outline-dark:hover { border-color: var(--gold); color: var(--gold-dark); }

.btn-outline-light {
  background: transparent; color: #f5f3ee;
  border: 1px solid rgba(245,243,238,0.25); padding: 0.95rem 2.25rem;
}
.btn-outline-light:hover { border-color: var(--gold); color: var(--gold); }

.btn-ghost-dark {
  color: var(--ink-3); background: transparent; border: none; padding: 0;
  font-size: 0.72rem; letter-spacing: 0.1em;
}
.btn-ghost-dark:hover { color: var(--ink); }
.btn-ghost-dark svg { transition: transform 0.2s; }
.btn-ghost-dark:hover svg { transform: translateX(4px); }

.btn-ghost-light {
  color: rgba(245,243,238,0.55); background: transparent; border: none; padding: 0;
  font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
}
.btn-ghost-light:hover { color: #f5f3ee; }
.btn-ghost-light svg { transition: transform 0.2s; }
.btn-ghost-light:hover svg { transform: translateX(4px); }

/* ── NAV ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  transition: background 0.35s, border-color 0.35s;
}
.nav.hero-nav {
  background: rgba(10,10,10,0.0);
  border-bottom: 1px solid transparent;
  backdrop-filter: none;
}
.nav.scrolled {
  background: rgba(240,235,226,0.96);
  border-bottom: 1px solid var(--border-light);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.nav.dark-nav {
  background: rgba(10,10,10,0.94);
  border-bottom: 1px solid var(--border-white);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--pad-x); height: 64px;
  max-width: var(--max-w); margin: 0 auto;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.35rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  text-decoration: none; display: flex; align-items: baseline;
  transition: color 0.3s;
}
.nav-logo sup { font-size: 0.6em; line-height: 0; }
.nav.hero-nav .nav-logo   { color: #f5f3ee; }
.nav.hero-nav .nav-logo sup { color: var(--gold); }
.nav.scrolled .nav-logo   { color: var(--ink); }
.nav.scrolled .nav-logo sup { color: var(--gold-dark); }
.nav.dark-nav .nav-logo   { color: #f5f3ee; }
.nav.dark-nav .nav-logo sup { color: var(--gold); }

.nav-links { display: none; list-style: none; gap: 2.5rem; }
.nav-links a {
  font-size: 0.68rem; font-weight: 400;
  letter-spacing: 0.14em; text-transform: uppercase;
  text-decoration: none; transition: color 0.2s;
}
.nav.hero-nav .nav-links a  { color: rgba(245,243,238,0.6); }
.nav.hero-nav .nav-links a:hover,
.nav.hero-nav .nav-links a.active { color: #f5f3ee; }
.nav.scrolled .nav-links a  { color: var(--ink-3); }
.nav.scrolled .nav-links a:hover { color: var(--ink); }
.nav.scrolled .nav-links a.active { color: var(--gold-dark); }
.nav.dark-nav .nav-links a  { color: rgba(245,243,238,0.55); }
.nav.dark-nav .nav-links a:hover,
.nav.dark-nav .nav-links a.active { color: #f5f3ee; }
.nav.dark-nav .nav-links a.active { color: var(--gold); }

.nav-right { display: flex; align-items: center; gap: 1rem; }
.nav-cta-btn {
  display: none;
  background: transparent;
  padding: 0.55rem 1.4rem;
  font-family: var(--font-body); font-size: 0.66rem;
  font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase;
  text-decoration: none; transition: all 0.22s; border: 1px solid;
}
.nav.hero-nav .nav-cta-btn  { color: var(--gold); border-color: rgba(201,168,76,0.4); }
.nav.hero-nav .nav-cta-btn:hover { background: rgba(201,168,76,0.12); }
.nav.scrolled .nav-cta-btn  { color: var(--ink); border-color: var(--border-dark); }
.nav.scrolled .nav-cta-btn:hover { border-color: var(--gold); color: var(--gold-dark); }
.nav.dark-nav .nav-cta-btn  { color: var(--gold); border-color: rgba(201,168,76,0.35); }
.nav.dark-nav .nav-cta-btn:hover { background: rgba(201,168,76,0.1); }

.nav-hamburger {
  display: flex; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-hamburger span {
  display: block; width: 22px; height: 1.5px;
  transition: all 0.3s;
}
.nav.hero-nav .nav-hamburger span  { background: #f5f3ee; }
.nav.scrolled .nav-hamburger span  { background: var(--ink); }
.nav.dark-nav .nav-hamburger span  { background: #f5f3ee; }
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile menu */
.nav-mobile {
  display: none; flex-direction: column;
  border-top: 1px solid var(--border-light);
  padding: 1.75rem var(--pad-x) 2rem; gap: 0;
}
.nav.hero-nav .nav-mobile  { background: var(--black); border-color: var(--border-white); }
.nav.scrolled .nav-mobile  { background: var(--cream); border-color: var(--border-light); }
.nav.dark-nav .nav-mobile  { background: var(--black); border-color: var(--border-white); }
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-size: 0.8rem; font-weight: 400;
  letter-spacing: 0.14em; text-transform: uppercase;
  padding: 0.9rem 0; border-bottom: 1px solid;
  transition: color 0.2s;
}
.nav.hero-nav .nav-mobile a,
.nav.dark-nav .nav-mobile a { color: rgba(245,243,238,0.6); border-color: var(--border-white); }
.nav.hero-nav .nav-mobile a:hover,
.nav.dark-nav .nav-mobile a:hover { color: #f5f3ee; }
.nav.scrolled .nav-mobile a { color: var(--ink-3); border-color: var(--border-light); }
.nav.scrolled .nav-mobile a:hover,
.nav.scrolled .nav-mobile a.active { color: var(--ink); }
.nav-mobile .nav-mobile-cta {
  margin-top: 1rem; text-align: center;
  background: var(--gold); color: var(--black);
  padding: 1rem; font-weight: 600; border: none !important;
  letter-spacing: 0.14em;
}
.nav-mobile .nav-mobile-cta:hover { background: var(--gold-dark); color: var(--black); }

/* ── PAGE HERO (inner pages — dark) ── */
.page-hero {
  padding-top: 64px;
  background: var(--navy);
  border-bottom: 1px solid rgba(245,243,238,0.06);
  position: relative; overflow: hidden;
}
.page-hero-glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 55% 65% at 85% 55%, rgba(201,168,76,0.08) 0%, transparent 60%);
}
.page-hero-inner {
  max-width: var(--max-w); margin: 0 auto;
  padding: 5rem var(--pad-x) 4.5rem; position: relative;
}
.page-hero-inner .heading { margin-top: 1.5rem; max-width: 20ch; }
.page-hero-inner p { margin-top: 1.5rem; font-size: 0.95rem; color: rgba(245,243,238,0.5); line-height: 1.85; font-weight: 300; max-width: 54ch; }

/* ── CTA BANNER (dark) ── */
.cta-banner { background: var(--navy); border-top: 1px solid rgba(245,243,238,0.07); padding: 5.5rem var(--pad-x); }
.cta-banner-inner { max-width: var(--max-w); margin: 0 auto; display: flex; flex-direction: column; gap: 2rem; }

/* ── DIVIDERS ── */
.gold-rule { height: 1px; background: linear-gradient(90deg, var(--gold) 0%, transparent 65%); opacity: 0.3; }
.ink-rule  { height: 1px; background: var(--border-light); }

/* ── FOOTER ── */
.footer { background: var(--black); border-top: 1px solid var(--border-white); }
.footer-top {
  padding: 4.5rem var(--pad-x) 3.5rem;
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 1fr;
  gap: 3rem; border-bottom: 1px solid var(--border-white);
}
.footer-logo { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: #f5f3ee; }
.footer-logo sup { color: var(--gold); font-size: 0.6em; }
.footer-tagline { font-size: 0.75rem; color: rgba(245,243,238,0.4); margin-top: 0.5rem; font-style: italic; }
.footer-desc { margin-top: 1rem; font-size: 0.82rem; color: rgba(245,243,238,0.4); line-height: 1.8; font-weight: 300; }
.footer-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.footer-col h4 { font-size: 0.6rem; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin-bottom: 1.25rem; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
.footer-col ul a { font-size: 0.82rem; color: rgba(245,243,238,0.4); transition: color 0.2s; font-weight: 300; }
.footer-col ul a:hover { color: #f5f3ee; }
.footer-bottom { max-width: var(--max-w); margin: 0 auto; padding: 1.75rem var(--pad-x); display: flex; flex-direction: column; gap: 0.4rem; }
.footer-bottom p { font-size: 0.7rem; color: rgba(245,243,238,0.2); letter-spacing: 0.04em; }
.footer-cities { font-size: 0.7rem; color: rgba(245,243,238,0.35); letter-spacing: 0.08em; }
.footer-cities em { color: var(--gold); font-style: normal; }

/* ── SCROLL REVEAL ── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.75s ease, transform 0.75s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }

/* ════ TABLET ≥ 768px ════ */
@media (min-width: 768px) {
  :root { --pad-x: 2.5rem; }
  .section    { padding: 6rem var(--pad-x); }
  .section-lg { padding: 8rem var(--pad-x); }
  .nav-inner  { height: 72px; }
  .nav-links  { display: flex; }
  .nav-cta-btn { display: inline-block; }
  .nav-hamburger { display: none; }
  .nav-mobile { display: none !important; }
  .page-hero-inner { padding-top: 7rem; }
  .footer-top { grid-template-columns: 1.5fr 2fr; gap: 5rem; }
  .footer-cols { grid-template-columns: repeat(3,1fr); }
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
  .cta-banner-inner { flex-direction: row; align-items: center; justify-content: space-between; }
}

/* ════ DESKTOP ≥ 1100px ════ */
@media (min-width: 1100px) {
  :root { --pad-x: 4rem; }
  .section    { padding: 7rem var(--pad-x); }
  .section-lg { padding: 9rem var(--pad-x); }
  .footer-top { padding: 6rem var(--pad-x) 5rem; grid-template-columns: 1.8fr 2.2fr; gap: 7rem; }
}