/* VibeTags landing page — same design system as the llm-fw page, green accent.
   No build step, no dependencies. */

:root {
  --color-bg: #07070a;
  --color-surface: #0e0e13;
  --color-surface-card: #13131a;
  --color-surface-hover: #1b1b24;
  --color-border: rgba(255, 255, 255, 0.07);
  --color-border-glow: rgba(62, 207, 142, 0.18);

  --color-primary: #3ecf8e;          /* emerald — guardrail green */
  --color-primary-hover: #34b87d;
  --color-primary-glow: rgba(62, 207, 142, 0.22);

  --color-safe: #10b981;
  --color-blocked: #f43f5e;
  --color-warn: #fbbf24;
  --color-text-dim: #94a3b8;
  --color-text-bright: #f1f5f9;

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.7);

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 72px;
}

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

html, body {
  background-color: var(--color-bg);
  color: var(--color-text-dim);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
  overflow-x: hidden;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--color-text-bright);
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}

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

h1, h2, h3 { color: var(--color-text-bright); line-height: 1.2; }

/* ---------- Header ---------- */

.header-root {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  backdrop-filter: blur(12px);
  background: rgba(7, 7, 10, 0.8);
  border-bottom: 1px solid var(--color-border);
}

.header-container {
  max-width: 1160px;
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo-link { display: flex; align-items: center; gap: 10px; color: var(--color-text-bright); }
.logo-icon {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1.3rem;
}
.logo-text { font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; }
.logo-accent { color: var(--color-primary); }

.nav-links { display: flex; gap: 22px; }
.nav-item { color: var(--color-text-dim); font-size: 0.95rem; }
.nav-item:hover { color: var(--color-text-bright); }

.cta-button {
  display: inline-block;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}
.primary-cta {
  background: var(--color-primary);
  color: #052e1c;
}
.primary-cta:hover {
  background: var(--color-primary-hover);
  color: #052e1c;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--color-primary-glow);
}
.ghost-cta {
  border: 1px solid var(--color-border);
  color: var(--color-text-bright);
}
.ghost-cta:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ---------- Hero ---------- */

.hero-section { padding: 88px 24px 48px; }

.hero-container {
  max-width: 1160px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  color: var(--color-primary);
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.hero-title { font-size: clamp(2.1rem, 4.5vw, 3.2rem); letter-spacing: -0.02em; margin-bottom: 18px; }
.hero-title .hl { color: var(--color-primary); }

.hero-subtitle { font-size: 1.08rem; max-width: 34rem; margin-bottom: 26px; }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-actions.center { justify-content: center; }

.hero-meta { margin-top: 18px; font-size: 0.88rem; color: var(--color-text-dim); opacity: 0.85; }

/* Terminal figure */

.term {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}
.dot { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,0.14); }
.term-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-dim);
}
.term-status {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-primary);
}

.term-code {
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.55;
  overflow-x: auto;
  color: var(--color-text-bright);
}
.term-code .ann { color: var(--color-warn); }
.term-code .kw  { color: #7dd3fc; }
.term-code .fn  { color: var(--color-primary); }
.term-code .str { color: #fda4af; }
.term-code .num { color: #c4b5fd; }

.term-report { border-top: 1px solid var(--color-border); padding: 12px 18px 16px; }
.rep-line {
  display: flex;
  gap: 12px;
  font-size: 0.83rem;
  padding: 4px 0;
  align-items: baseline;
}
.rep-line span:first-child {
  font-family: var(--font-mono);
  white-space: nowrap;
  font-size: 0.78rem;
}
.rep-line.ok span:first-child { color: var(--color-safe); }
.rep-line.fail span:first-child { color: var(--color-blocked); }
.rep-line.dim span:first-child { color: var(--color-text-dim); }

/* ---------- Stats band ---------- */

.stats-band {
  max-width: 1160px;
  margin: 24px auto 0;
  padding: 8px 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  text-align: center;
}
.stats-band div {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 10px;
}
.stats-band strong {
  display: block;
  font-size: 1.7rem;
  color: var(--color-primary);
  font-family: var(--font-mono);
}
.stats-band span { font-size: 0.85rem; }

/* ---------- Sections ---------- */

.section { padding: 72px 24px 8px; }
.section-container { max-width: 1160px; margin: 0 auto; }
.section-container.center { text-align: center; }

.section-title { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: 26px; letter-spacing: -0.01em; }

.section-sub { max-width: 46rem; margin-bottom: 20px; }

.section-punch {
  margin: 30px auto 0;
  max-width: 44rem;
  font-size: 1.08rem;
  color: var(--color-text-bright);
  border-left: 3px solid var(--color-primary);
  padding-left: 18px;
}

.grid { display: grid; gap: 18px; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.bento { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.card:hover { border-color: var(--color-border-glow); transform: translateY(-2px); }
.card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.card p { font-size: 0.93rem; }

.steps .step-num {
  font-family: var(--font-mono);
  color: var(--color-primary);
  font-size: 0.85rem;
  display: block;
  margin-bottom: 8px;
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  border: 1px solid var(--color-border-glow);
  border-radius: 4px;
  padding: 2px 8px;
  margin-bottom: 12px;
}

/* ---------- Platform wall ---------- */

.logo-wall {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 8px 0 18px;
}
.logo-wall li {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-bright);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 7px 15px;
}

/* ---------- Quick start ---------- */

.setup-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: start;
}
.setup-block h3 { font-size: 0.95rem; margin: 14px 0 8px; }
.setup-block h3:first-child { margin-top: 0; }

.code-block {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.55;
  overflow-x: auto;
  color: var(--color-text-bright);
}

/* ---------- FAQ ---------- */

.faq-list { max-width: 46rem; }
.faq-list details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-card);
  margin-bottom: 10px;
  padding: 0 18px;
}
.faq-list summary {
  cursor: pointer;
  padding: 14px 0;
  color: var(--color-text-bright);
  font-weight: 600;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before {
  content: "+";
  color: var(--color-primary);
  font-family: var(--font-mono);
  margin-right: 10px;
}
.faq-list details[open] summary::before { content: "\2212"; }
.faq-list details p { padding: 0 0 16px 22px; font-size: 0.93rem; }

/* ---------- Bottom CTA / footer ---------- */

.bottom-cta { padding-bottom: 40px; }
.bottom-cta .hero-actions { margin-top: 6px; }

.site-foot {
  border-top: 1px solid var(--color-border);
  margin-top: 64px;
  padding: 26px 24px 34px;
  font-size: 0.85rem;
}
.foot-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}
.foot-inner nav { display: flex; gap: 18px; }
.foot-inner a { color: var(--color-text-dim); }
.foot-inner a:hover { color: var(--color-primary); }

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .hero-container { grid-template-columns: 1fr; }
  .grid.three, .grid.bento { grid-template-columns: 1fr 1fr; }
  .setup-grid { grid-template-columns: 1fr; }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
}

@media (max-width: 560px) {
  .grid.three, .grid.bento { grid-template-columns: 1fr; }
  .hero-section { padding-top: 56px; }
}