/* ============================================================
   SnapAPI Shared Theme
   Usage: <link rel="stylesheet" href="theme.css">
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:           #000;
  --surface:      rgba(255,255,255,0.03);
  --surface-hover:rgba(255,255,255,0.055);
  --border:       rgba(255,255,255,0.07);
  --border-subtle:rgba(255,255,255,0.04);
  --text:         #fff;
  --muted:        #666;
  --dim:          rgba(255,255,255,0.2);
  --accent:       #00d4aa;
  --accent-bright:#00f0c0;
  --accent-dim:   rgba(0,212,170,0.08);
  --glass-blur:   blur(16px);
  --card-bg:      #111;
  --card-border:  #1a1a1a;
}

/* ── Reset ──────────────────────────────────────────────────── */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  font-size: 15px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Animations ─────────────────────────────────────────────── */
@keyframes shimmer    { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
@keyframes pulseLeft  { 0% { transform: scaleX(0); opacity: .8; } 100% { transform: scaleX(1); opacity: 0; } }
@keyframes pulseRight { 0% { transform: scaleX(0); opacity: .8; } 100% { transform: scaleX(1); opacity: 0; } }
@keyframes fadeUp     { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn     { from { opacity: 0; } to { opacity: 1; } }
@keyframes blink      { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes scanline   { 0% { transform: translateY(-100%); } 100% { transform: translateY(100vh); } }

/* ── Nav ────────────────────────────────────────────────────── */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: rgba(0,0,0,0.85);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
nav .logo {
  font-size: 1rem; font-weight: 600; color: var(--text);
  text-decoration: none; display: flex; align-items: center;
  gap: 10px; letter-spacing: -0.3px;
}
nav .logo img { width: 24px; height: 24px; border-radius: 6px; }
nav .logo .logo-text { color: var(--text); }
nav .logo .logo-text span { color: var(--accent); }
nav .nav-links { display: flex; gap: 32px; align-items: center; }
nav .nav-links a {
  color: var(--muted); text-decoration: none; font-size: 13px;
  font-weight: 400; transition: color 0.2s; letter-spacing: 0.2px;
}
nav .nav-links a:hover { color: var(--text); text-decoration: none; }
nav .nav-links a.accent { color: var(--accent); font-weight: 500; }
nav .nav-links a.accent:hover { color: var(--accent-bright); }
nav .nav-links a.cta {
  color: var(--text); font-weight: 500;
  border: 1px solid var(--border); padding: 7px 16px; border-radius: 6px;
  transition: border-color 0.2s, background 0.2s;
}
nav .nav-links a.cta:hover { border-color: var(--dim); background: var(--surface); text-decoration: none; }

/* Hamburger button */
.nav-toggle {
  display: none; background: none; border: 1px solid var(--border);
  border-radius: 6px; cursor: pointer; color: var(--muted);
  padding: 6px 8px; align-items: center; justify-content: center;
  transition: color 0.2s, border-color 0.2s; line-height: 0;
}
.nav-toggle:hover { color: var(--text); border-color: var(--dim); }
.nav-toggle .icon-close { display: none; }
nav.open .nav-toggle .icon-menu { display: none; }
nav.open .nav-toggle .icon-close { display: block; }

/* Mobile drawer */
.nav-drawer {
  display: none; width: 100%; flex-direction: column;
  border-top: 1px solid var(--border-subtle); margin-top: 12px; padding-bottom: 4px;
}
nav.open .nav-drawer { display: flex; }
.nav-drawer a {
  color: var(--muted); text-decoration: none; padding: 14px 0;
  font-size: 15px; font-weight: 400;
  border-bottom: 1px solid var(--border-subtle); transition: color 0.2s;
}
.nav-drawer a:last-child { border-bottom: none; }
.nav-drawer a:hover { color: var(--text); text-decoration: none; }

@media (max-width: 600px) {
  nav { flex-wrap: wrap; padding: 14px 20px; }
  nav .logo img { width: 28px; height: 28px; }
  nav .logo .logo-text { display: none; }
  nav .nav-links { gap: 8px; }
  nav .nav-links a:not(.nav-toggle) { display: none; }
  nav .nav-links a.cta { display: none; }
  .nav-toggle { display: flex; }
}

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  max-width: 860px;
  margin: 40px auto;
  padding: 0 20px;
  flex: 1;
  width: 100%;
}

/* ── Typography ─────────────────────────────────────────────── */
h1 { color: var(--text); font-size: 1.8rem; margin-bottom: 8px; }
h1 span { color: var(--accent); }
h2 { color: var(--text); font-size: 1.3rem; margin: 32px 0 12px; border-bottom: 1px solid var(--card-border); padding-bottom: 8px; }
.subtitle { color: var(--muted); font-size: 14px; margin-bottom: 32px; }
.section-label { font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px; }

/* ── Card ───────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
}
.card h2 { color: var(--text); font-size: 1rem; margin: 0 0 16px; padding: 0; border: none; }
.card h3 { color: var(--text); font-size: 1rem; margin-bottom: 8px; }
.card p  { color: #888; font-size: 14px; }

/* ── Code / pre ─────────────────────────────────────────────── */
code {
  color: var(--accent);
  background: var(--accent-dim);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}
pre {
  background: #0a0a0a;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.5;
  color: #ccc;
  font-family: 'SF Mono', 'Fira Code', monospace;
  position: relative;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn-primary {
  display: inline-block;
  padding: 13px 28px;
  background: var(--text); color: var(--bg);
  border: none; border-radius: 6px;
  font-weight: 600; font-size: 14px;
  cursor: pointer; text-decoration: none;
  transition: opacity 0.2s, transform 0.15s;
  letter-spacing: -0.2px;
}
.btn-primary:hover { opacity: 0.85; transform: translateY(-1px); text-decoration: none; }

.btn-accent {
  display: inline-block;
  padding: 14px 32px;
  background: var(--accent); color: #000;
  font-weight: 700; font-size: 15px;
  border-radius: 8px; text-decoration: none;
  transition: background 0.2s;
}
.btn-accent:hover { background: var(--accent-bright); text-decoration: none; }

.btn-ghost {
  display: inline-block;
  padding: 13px 28px;
  background: transparent; color: var(--muted);
  border: 1px solid var(--border); border-radius: 6px;
  font-weight: 400; font-size: 14px;
  cursor: pointer; text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}
.btn-ghost:hover { border-color: var(--dim); color: var(--text); text-decoration: none; }

/* Copy button (code blocks) */
.copy-btn {
  position: absolute; top: 8px; right: 8px;
  padding: 4px 10px; background: #222;
  border: 1px solid #333; border-radius: 6px;
  color: #888; font-size: 11px; cursor: pointer;
  transition: all 0.2s; z-index: 1;
}
.copy-btn:hover { background: #333; color: #fff; }
.copy-btn.copied { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }

/* ── Footer ─────────────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 40px 20px;
  color: #444;
  font-size: 13px;
  border-top: 1px solid var(--card-border);
  margin-top: auto;
}
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 16px; flex-wrap: wrap; }
.footer-links a { color: #666; text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); text-decoration: none; }