/* ═══════════════════════════════════════════════════════════════
   Design Corner 2.0 — layout.css
   Nav · Footer · Grid · Containers · Page structure
   ═══════════════════════════════════════════════════════════════ */

/* ── Container ──────────────────────────────────────────────────── */
.container {
  width: 91%;
  max-width: 1180px;
  margin-inline: auto;
}
.container--wide { max-width: 1380px; }
.container--narrow { max-width: 780px; }

/* ── Section ────────────────────────────────────────────────────── */
.section      { padding: 7rem 0; }
.section--lg  { padding: 10rem 0; }
.section--sm  { padding: 4rem 0; }
.section--dark   { background: var(--black); }
.section--surface { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* Section header */
.section-head { margin-bottom: 4rem; }
.section-head h2 { margin-top: .65rem; }
.section-head p  { margin-top: .85rem; font-size: .95rem; max-width: 460px; }
.section-head.center { text-align: center; }
.section-head.center .label { justify-content: center; }
.section-head.center p { margin-inline: auto; }

/* ── Label chip ─────────────────────────────────────────────────── */
.label {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--yellow);
}
.label::before {
  content: '';
  display: block;
  width: 18px; height: 1px;
  background: var(--yellow);
  flex-shrink: 0;
}

/* ── Grid bg ────────────────────────────────────────────────────── */
.grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 58px 58px;
  pointer-events: none;
}

/* ═════════════════════════════════
   NAVIGATION
════════════════════════════════ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding: 1.2rem 0;
  transition: background .45s, border-color .45s, backdrop-filter .45s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(0, 0, 0, .88);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  border-color: var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* Logo */
.nav-logo {
  font-size: .95rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -.03em;
  white-space: nowrap;
  position: relative;
  display: flex;
  align-items: center;
  gap: .4rem;
}
.nav-logo .logo-dot {
  width: 7px; height: 7px;
  background: var(--yellow);
  border-radius: 50%;
  animation: logo-blink 2.5s ease infinite;
}
@keyframes logo-blink { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.3;transform:scale(.6)} }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}
.nav-links a {
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .05em;
  color: var(--muted);
  transition: color .25s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 50%;
  width: 0; height: 1px;
  background: var(--yellow);
  transition: width .35s var(--ease), left .35s var(--ease);
}
.nav-links a:hover       { color: var(--white); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; left: 0; }
.nav-links a.active { color: var(--white); }

.nav-right { display: flex; align-items: center; gap: 1rem; }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none; border: none;
}
.nav-hamburger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--white);
  transition: transform .3s var(--ease), opacity .3s;
}
.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 */
.mobile-menu {
  display: none;
  position: fixed; inset: 0;
  background: var(--black);
  z-index: 490;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--off-white);
  transition: color .2s, transform .2s var(--ease);
}
.mobile-menu a:hover { color: var(--yellow); transform: translateX(8px); }

/* ═════════════════════════════════
   FOOTER
════════════════════════════════ */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 5rem 0 2.5rem;
  position: relative;
  overflow: hidden;
}

/* footer blob */
.site-footer::before {
  content: '';
  position: absolute;
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(252,214,0,.04) 0%, transparent 70%);
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--border);
}
.footer-brand p {
  margin-top: .8rem;
  font-size: .78rem;
  color: var(--muted);
  max-width: 230px;
  line-height: 1.8;
}
.footer-col h4 { margin-bottom: 1.3rem; }
.footer-col ul { display: flex; flex-direction: column; gap: .75rem; }
.footer-col a {
  font-size: .8rem;
  color: var(--muted);
  transition: color .2s, transform .2s var(--ease);
  display: inline-block;
}
.footer-col a:hover { color: var(--yellow); transform: translateX(5px); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p { font-size: .72rem; color: var(--muted-2); letter-spacing: .04em; }

/* ═════════════════════════════════
   PAGE HERO (inner pages)
════════════════════════════════ */
.page-hero {
  padding: 10rem 0 5rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: relative;
  overflow: hidden;
}
.page-hero .grid-bg {
  mask-image: linear-gradient(to bottom, transparent, black 40%, black 70%, transparent);
  opacity: .45;
}
.page-hero-inner { position: relative; z-index: 1; max-width: 700px; }
.page-hero h1 { margin-top: .65rem; }
.page-hero p  { margin-top: 1rem; font-size: .98rem; max-width: 480px; }

/* ═════════════════════════════════
   RESPONSIVE
════════════════════════════════ */
@media (max-width: 960px) {
  .nav-links, .nav-right .btn { display: none; }
  .nav-hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 600px) {
  .section { padding: 5rem 0; }
  .section--lg { padding: 6rem 0; }
  .footer-grid { grid-template-columns: 1fr; }
  html { cursor: auto; }
  #cursor-outer, #cursor-dot { display: none; }
}