/* ============================================================
   RVK Digital — global.css
   All CSS variables, reset, base, nav, footer, shared utilities
   ============================================================ */

/* ── TOKENS ─────────────────────────────────────────────── */
:root {
  /* Brand */
  --salmon:        #E8856A;
  --salmon-light:  #F2A990;
  --salmon-pale:   #FAF0EC;
  --dark:          #1A1714;
  --dark-2:        #2C2825;
  --mid:           #6B6460;
  --light:         #F5F2EF;
  --white:         #FDFCFB;

  /* Light theme (default) */
  --bg:            var(--light);
  --surface:       var(--white);
  --surface-2:     #EDE9E6;
  --text-1:        var(--dark);
  --text-2:        #3D3633;
  --text-3:        var(--mid);
  --border:        rgba(26,23,20,0.09);
  --border-md:     rgba(26,23,20,0.15);
  --accent:        var(--salmon);
  --accent-pale:   var(--salmon-pale);
  --nav-bg:        rgba(253,252,251,0.80);
  --card-bg:       var(--white);
  --dark-panel:    var(--dark);
  --dark-panel-2:  var(--dark-2);

  /* Typography */
  --font-display:  'Bricolage Grotesque', sans-serif;
  --font-body:     'DM Sans', sans-serif;

  /* Layout */
  --max-w:  1200px;
  --gutter: 8%;

  /* Radii */
  --r-sm:   8px;
  --r-md:  12px;
  --r-lg:  18px;
  --r-xl:  24px;

  /* Transitions */
  --t-fast: 0.2s ease;
  --t-base: 0.3s ease;
  --t-theme: background 0.35s, color 0.35s, border-color 0.35s;
}

[data-theme="dark"] {
  --bg:            var(--dark);
  --surface:       var(--dark-2);
  --surface-2:     #3A322E;
  --text-1:        var(--light);
  --text-2:        #C8C0BC;
  --text-3:        rgba(245,242,239,0.48);
  --border:        rgba(245,242,239,0.07);
  --border-md:     rgba(245,242,239,0.13);
  --accent:        var(--salmon);
  --accent-pale:   rgba(232,133,106,0.12);
  --nav-bg:        rgba(26,23,20,0.94);
  --card-bg:       var(--dark-2);
  --dark-panel:    #110E0C;
  --dark-panel-2:  var(--dark);
}

/* ── RESET ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img, svg { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; }

/* ── BASE ────────────────────────────────────────────────── */
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-1);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  transition: var(--t-theme);
}

/* ── TYPOGRAPHY ──────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text-1);
}
h1 { font-size: clamp(2.5rem, 4.5vw, 3.75rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 3vw, 2.625rem); font-weight: 800; margin-bottom: 1rem; }
h3 { font-size: 1.0625rem; font-weight: 700; letter-spacing: -0.02em; }
p  { color: var(--text-3); font-weight: 300; line-height: 1.8; }

/* ── CONTAINER ───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, var(--gutter), 1.25rem);
  padding-right: clamp(1.25rem, var(--gutter), 1.25rem);
}

/* ── SECTION HELPERS ─────────────────────────────────────── */
.section-pad    { padding: 6rem 0; }
.section-pad-sm { padding: 4rem 0; }

.eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.875rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 20px; height: 2px;
  background: var(--accent);
  border-radius: 1px;
  flex-shrink: 0;
}

.section-intro {
  font-size: 1.0625rem;
  color: var(--text-3);
  max-width: 580px;
  margin-bottom: 3.5rem;
  font-weight: 300;
  line-height: 1.8;
}

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.875rem 1.875rem;
  border-radius: var(--r-md);
  transition: all var(--t-fast);
  cursor: pointer;
  border: none;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.btn-primary {
  background: var(--dark);
  color: var(--light);
}
.btn-primary:hover {
  background: var(--dark-2);
  transform: translateY(-2px);
}
[data-theme="dark"] .btn-primary {
  background: var(--accent);
  color: #fff;
}
[data-theme="dark"] .btn-primary:hover {
  background: var(--salmon-light);
}
.btn-secondary {
  background: transparent;
  
  border: 1.5px solid var(--border-md);
}
.btn-secondary:hover {
  background: var(--dark);
  transform: translateY(-2px);
}
[data-theme="dark"] .btn-secondary:hover {
  border-color: rgba(245,242,239,0.3);
  background: rgba(245,242,239,0.05);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background: #d07057;
  transform: translateY(-2px);
}

/* ── NAV ─────────────────────────────────────────────────── */
#site-nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  height: 66px;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: transform var(--t-base), background 0.35s;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, var(--gutter), 6rem);
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  color: var(--text-1);
}
.nav-logo .dot { color: var(--accent); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-links {
  display: flex;
  gap: 0.125rem;
  margin-right: 0.75rem;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-3);
  padding: 0.375rem 0.875rem;
  border-radius: var(--r-sm);
  transition: var(--t-fast);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-1);
  background: var(--border);
}
.nav-cta {
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1.125rem;
  border-radius: var(--r-sm);
  background: var(--dark);
  color: var(--light) !important;
  transition: background var(--t-fast);
}
.nav-cta:hover { background: var(--dark-2) !important; }
[data-theme="dark"] .nav-cta { background: var(--accent); }
[data-theme="dark"] .nav-cta:hover { background: #d07057; }

/* Theme toggle button */
.theme-btn {
  width: 38px; height: 38px;
  border: 1px solid var(--border-md);
  border-radius: var(--r-sm);
  background: transparent;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-3);
  transition: var(--t-fast);
  margin-right: 0.375rem;
  flex-shrink: 0;
}
.theme-btn:hover { background: var(--surface-2); color: var(--text-1); }
.theme-btn svg { width: 16px; height: 16px; pointer-events: none; }

/* Mobile nav toggle */
.nav-hamburger {
  display: none;
  width: 38px; height: 38px;
  border: 1px solid var(--border-md);
  border-radius: var(--r-sm);
  background: transparent;
  align-items: center; justify-content: center;
  flex-direction: column;
  gap: 5px;
  transition: var(--t-fast);
}
.nav-hamburger span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--text-1);
  border-radius: 1px;
  transition: var(--t-fast);
}

/* ── FOOTER ──────────────────────────────────────────────── */
#site-footer {
  background: var(--dark);
  padding: 3rem 8% 2rem;
  border-top: 1px solid rgba(245,242,239,0.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(245,242,239,0.06);
}
.footer-brand p {
  font-size: 0.875rem;
  color: rgba(245,242,239,0.38);
  font-weight: 300;
  line-height: 1.75;
  margin-top: 0.75rem;
  max-width: 260px;
}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
  color: var(--light);
}
.footer-logo .dot { color: var(--accent); }
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(245,242,239,0.35);
  margin-bottom: 1.125rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-col a {
  font-size: 0.875rem;
  color: rgba(245,242,239,0.5);
  font-weight: 300;
  transition: color var(--t-fast);
}
.footer-col a:hover { color: var(--light); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-bottom small {
  font-size: 0.775rem;
  color: rgba(245,242,239,0.22);
}

/* ── PAGE HEADER (inner pages) ───────────────────────────── */
.page-header {
  padding: 9rem 8% 5rem;
  /* background: var(--dark);
  position: relative;
  overflow: hidden; */
}
.page-header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: rgba(245,242,239,0.06);
}
.page-header .eyebrow { color: var(--salmon-light); }
.page-header .eyebrow::before { background: var(--salmon-light); }
.page-header h1 { color: var(--light); max-width: 720px; }
.page-header .lead {
  font-size: 1.125rem;
  color: rgba(245,242,239,0.5);
  max-width: 580px;
  margin-top: 1.25rem;
  font-weight: 300;
}

/* ── CARDS (shared) ──────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 2rem;
  transition: transform var(--t-fast), border-color var(--t-fast);
}
.card:hover { transform: translateY(-3px); border-color: var(--border-md); }

/* ── SCROLL REVEAL ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ── CHIPS / TAGS ────────────────────────────────────────── */
.chip {
  display: inline-block;
  font-size: 0.675rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--text-2);
  border: 1px solid var(--border);
}
.chip-accent {
  background: var(--accent-pale);
  color: var(--salmon);
  border-color: rgba(232,133,106,0.2);
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  #site-nav  { padding: 0 5%; }
  .section-pad   { padding: 5rem 5%; }
  .section-pad-sm{ padding: 3rem 5%; }
  .page-header   { padding: 8rem 5% 4rem; }
  .footer-grid   { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
  .nav-links       { display: none; }
  .nav-hamburger   { display: flex; }
  .footer-grid     { grid-template-columns: 1fr; gap: 1.75rem; }
  .footer-bottom   { flex-direction: column; gap: 0.5rem; text-align: center; }

  /* Mobile nav dropdown */
  .nav-links.nav-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 66px;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1.25rem 1.25rem;
    gap: 0.125rem;
    z-index: 199;
    box-shadow: 0 8px 24px rgba(26,23,20,0.12);
  }
  .nav-links.nav-open a {
    padding: 0.625rem 0.875rem;
    font-size: 0.9375rem;
    border-radius: var(--r-sm);
  }

  /* Animate hamburger → X when open */
  .nav-hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
  }
  .nav-hamburger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }
  .nav-hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
  }
  .nav-hamburger span {
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
}
@media (max-width: 480px) {
  .section-pad  { padding: 4rem 4%; }
  #site-nav     { padding: 0 4%; }
  .page-header  { padding: 7rem 4% 3rem; }
}