/* ============================================================
   Jewison Design — Shared Stylesheet
   Dark theme, engineering aesthetic
   ============================================================ */

:root {
  --bg:          #0d0d0f;
  --bg-surface:  #141418;
  --bg-card:     #1a1a20;
  --border:      #2a2a35;
  --accent:      #c8a96e;       /* warm brass/gold */
  --accent-dim:  #9a7e4e;
  --text:        #e8e8e0;
  --text-muted:  #888890;
  --text-subtle: #555560;
  --nav-h:       68px;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius:   6px;
  --radius-lg: 12px;
  --max-w:    1100px;
  --section-gap: 100px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* ── Typography ── */
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 700; line-height: 1.1; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 600; line-height: 1.2; letter-spacing: -0.02em; }
h3 { font-size: 1.2rem; font-weight: 600; line-height: 1.3; }
h4 { font-size: 0.95rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); }
p  { color: var(--text-muted); line-height: 1.75; }

.accent       { color: var(--accent); }
.text-muted   { color: var(--text-muted); }
.text-subtle  { color: var(--text-subtle); }

/* ── Layout ── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: var(--section-gap) 0; }

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-header {
  margin-bottom: 56px;
}

.divider {
  width: 40px;
  height: 2px;
  background: var(--accent);
  margin: 20px 0 0;
}

/* ── Navigation ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(13, 13, 15, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.nav-wordmark {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}
.nav-wordmark span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); }

.nav-cta {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent) !important;
  border: 1px solid var(--accent-dim);
  padding: 7px 18px;
  border-radius: var(--radius);
  transition: background 0.2s, color 0.2s !important;
}
.nav-cta:hover {
  background: var(--accent);
  color: var(--bg) !important;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

/* Mobile menu */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 24px;
  z-index: 99;
}
.nav-mobile.open { display: block; }
.nav-mobile ul { list-style: none; display: flex; flex-direction: column; gap: 20px; }
.nav-mobile a { font-size: 1.1rem; font-weight: 500; color: var(--text-muted); }
.nav-mobile a:hover { color: var(--text); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
}
.btn-primary:hover { background: #d4b97e; }

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--text-muted);
  background: var(--bg-card);
}

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent-dim); }

/* ── Image placeholder ── */
.img-placeholder {
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-subtle);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

/* ── Tag / pill ── */
.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  background: rgba(200, 169, 110, 0.1);
  color: var(--accent);
  border-radius: 4px;
  border: 1px solid rgba(200, 169, 110, 0.2);
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-wordmark {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}
.footer-wordmark span { color: var(--accent); }
.footer-links {
  display: flex;
  gap: 28px;
  list-style: none;
}
.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--text); }
.footer-copy {
  font-size: 0.8rem;
  color: var(--text-subtle);
  width: 100%;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* ── Page hero (inner pages) ── */
.page-hero {
  padding: 72px 0 64px;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 16px; }
.page-hero p  { font-size: 1.05rem; max-width: 600px; }

/* ── Utility ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.flex   { display: flex; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }

/* ── Responsive ── */
@media (max-width: 768px) {
  :root { --section-gap: 64px; }

  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .grid-2,
  .grid-3 { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-wrap: wrap; gap: 16px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .btn { padding: 10px 22px; }
}