/* AgentGuard - Minimalist site styling */

:root {
  --color-bg: #fff;
  --color-text: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-border: #e5e5e7;
  --color-code-bg: #f5f5f7;
  --color-accent: #0071e3;
  --color-accent-hover: #0077ed;
  --color-badge-bg: #1d1d1f;
  --color-badge-text: #fff;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", SFMono-Regular, ui-monospace, Menlo, Consolas, monospace;
  --max-width: 980px;
  --max-width-narrow: 720px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
}

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

a:hover {
  text-decoration: underline;
}

/* ── Navigation ──────────────────────────────────────── */

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid var(--color-border);
}

nav .nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 52px;
}

nav .logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

nav .logo:hover {
  text-decoration: none;
}

nav .nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  font-size: 0.875rem;
}

nav .nav-links a {
  color: var(--color-text-secondary);
  transition: color 0.2s;
}

nav .nav-links a:hover {
  color: var(--color-text);
  text-decoration: none;
}

/* ── Hero ────────────────────────────────────────────── */

.hero {
  text-align: center;
  padding: 6rem 1.5rem 4rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin-bottom: 1rem;
}

.hero .subtitle {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.4;
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.hero .cta-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 980px;
  font-size: 1rem;
  font-weight: 500;
  transition: background 0.2s, transform 0.1s;
  cursor: pointer;
  border: none;
}

.btn:hover {
  text-decoration: none;
  transform: scale(1.02);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn-secondary:hover {
  background: rgba(0, 113, 227, 0.06);
}

/* ── Sections ────────────────────────────────────────── */

section {
  padding: 5rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

section.alt {
  max-width: none;
  background: var(--color-code-bg);
}

section.alt > .section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  max-width: 600px;
  margin-bottom: 3rem;
}

/* ── Install strip ───────────────────────────────────── */

.install-strip {
  text-align: center;
  padding: 3rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.install-strip code {
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  background: var(--color-code-bg);
  padding: 0.75rem 2rem;
  border-radius: 12px;
  display: inline-block;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

/* ── Code blocks ─────────────────────────────────────── */

pre {
  background: var(--color-code-bg);
  border-radius: 16px;
  padding: 1.75rem 2rem;
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.7;
  border: 1px solid var(--color-border);
}

pre code {
  font-family: var(--font-mono);
  color: var(--color-text);
}

.code-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
}

/* ── Feature grid ────────────────────────────────────── */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  padding: 2rem;
  border-radius: 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
}

section.alt .feature-card {
  background: var(--color-bg);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ── Rule table ──────────────────────────────────────── */

.rule-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  margin-top: 2rem;
}

.rule-table th {
  text-align: left;
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--color-text);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
}

.rule-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.rule-table code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background: var(--color-code-bg);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

/* ── Badges ──────────────────────────────────────────── */

.badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 980px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-regex { background: #e8e8ed; color: #1d1d1f; }
.badge-onnx { background: #1d1d1f; color: #fff; }
.badge-llm { background: #0071e3; color: #fff; }
.badge-local { background: #e8e8ed; color: #1d1d1f; }
.badge-plugin { background: #e8e8ed; color: #1d1d1f; }
.badge-experimental { background: #fef3c7; color: #92400e; }

/* ── Benchmark ───────────────────────────────────────── */

.benchmark-table {
  width: 100%;
  max-width: 640px;
  margin: 2rem auto;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.benchmark-table th {
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.benchmark-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.benchmark-table td:last-child {
  font-family: var(--font-mono);
}

.benchmark-highlight {
  background: #f0fdf4;
}

.benchmark-highlight td {
  font-weight: 600;
}

.benchmark-note {
  max-width: 640px;
  margin: 1.25rem auto 0;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-align: center;
  line-height: 1.5;
}

/* ── Packages ────────────────────────────────────────── */

.package-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.package-card {
  padding: 1.5rem 1.75rem;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.package-card .package-name {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
}

.package-card .package-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.45;
}

/* ── Two-column layout ───────────────────────────────── */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.two-col .col-text {
  padding-top: 1rem;
}

/* ── Footer ──────────────────────────────────────────── */

footer {
  border-top: 1px solid var(--color-border);
  padding: 2.5rem 1.5rem;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

footer a {
  color: var(--color-text-secondary);
}

footer a:hover {
  color: var(--color-text);
}

/* ── Responsive ──────────────────────────────────────── */

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.25rem;
  }

  .hero .subtitle {
    font-size: 1.125rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .package-grid {
    grid-template-columns: 1fr;
  }

  .two-col {
    grid-template-columns: 1fr;
  }

  nav .nav-links {
    display: none;
  }

  pre {
    padding: 1.25rem 1rem;
    font-size: 0.8125rem;
  }
}