/* Saiko Acoustics — shared stylesheet */

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

:root {
  --charcoal: #1C1C1A;
  --graphite: #2A2A28;
  --rule: rgba(236, 234, 228, 0.1);
  --bone: #ECEAE4;
  --mid: #5C5C5A;
  --dim: rgba(236, 234, 228, 0.5);
  --font-h: 'Sora', system-ui, -apple-system, sans-serif;
  --font-b: 'Outfit', system-ui, -apple-system, sans-serif;
  --pad: 60px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--charcoal);
  color: var(--bone);
  font-family: var(--font-b);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px var(--pad);
  border-bottom: 0.5px solid transparent;
  transition: background 0.35s, border-color 0.35s;
}

nav.solid {
  background: rgba(28, 28, 26, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--rule);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-mark { width: 22px; height: 22px; flex-shrink: 0; display: block; }

.logo-text { display: flex; flex-direction: column; gap: 2px; }

.logo-name {
  font-family: var(--font-h);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.34em;
  color: var(--bone);
  line-height: 1;
}

.logo-sub {
  font-size: 8px;
  letter-spacing: 0.22em;
  color: var(--mid);
  text-transform: uppercase;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--dim);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-link:hover,
.nav-link[aria-current="page"] { color: var(--bone); }

/* ── TYPOGRAPHY ── */
h2 {
  font-family: var(--font-h);
  font-size: clamp(22px, 2.6vw, 36px);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--bone);
  margin-bottom: 18px;
}

h3 {
  font-family: var(--font-h);
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--bone);
  margin-bottom: 10px;
  line-height: 1.4;
}

p {
  color: var(--dim);
  line-height: 1.75;
  margin-bottom: 14px;
}

p:last-child { margin-bottom: 0; }

/* ── SECTIONS ── */
.section {
  padding: 96px var(--pad);
  border-top: 0.5px solid var(--rule);
}

.section-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--mid);
  text-transform: uppercase;
  margin-bottom: 48px;
}

/* ── RULE ── */
hr { border: none; border-top: 0.5px solid var(--rule); }

/* ── BUTTON ── */
.btn {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 13px 26px;
  border: 0.5px solid var(--mid);
  color: var(--bone);
  transition: border-color 0.2s;
}

.btn:hover { border-color: var(--bone); }

/* ── FOOTER ── */
footer {
  padding: 28px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 0.5px solid var(--rule);
}

.footer-left { display: flex; align-items: center; gap: 10px; }

.footer-left svg { width: 15px; height: 15px; opacity: 0.28; }

.footer-copy { font-size: 11px; color: var(--mid); letter-spacing: 0.04em; }

.footer-right { display: flex; gap: 24px; align-items: center; }

.footer-link {
  font-size: 11px;
  color: var(--mid);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.footer-link:hover { color: var(--bone); }

/* ── RESPONSIVE ── */
@media (max-width: 860px) {
  :root { --pad: 24px; }
  nav { padding: 20px var(--pad); }
  .section { padding: 68px var(--pad); }
  footer { flex-direction: column; gap: 18px; text-align: center; }
  .footer-right { justify-content: center; }
  .nav-links { gap: 20px; }
}

@media (max-width: 560px) {
  .hide-mobile { display: none; }
  .nav-links { gap: 16px; }
}