/* ── Reset & Base ─────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #0052CC;
  --color-primary-dark: #003d99;
  --color-primary-light: #e6f0ff;
  --color-text: #172B4D;
  --color-text-secondary: #5E6C84;
  --color-bg: #ffffff;
  --color-bg-subtle: #F4F5F7;
  --color-border: #DFE1E6;
  --color-success: #00875A;
  --color-warning: #FF991F;
  --color-danger: #DE350B;
  --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'SF Mono', SFMono-Regular, 'Cascadia Code', 'Fira Code', Consolas, monospace;
  --max-width: 1100px;
  --radius: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

img, svg {
  max-width: 100%;
  display: block;
}

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

/* ── Nav ─────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-text);
  text-decoration: none;
}

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

.nav-brand svg {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s;
}

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

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger svg {
  width: 28px;
  height: 28px;
  color: var(--color-text);
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding: 80px 0 64px;
  text-align: center;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.hero h1 span {
  color: var(--color-primary);
}

.hero p {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s, box-shadow 0.15s;
  cursor: pointer;
  border: none;
}

.btn:hover {
  text-decoration: none;
}

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

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

.btn-secondary {
  background: var(--color-bg-subtle);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

/* ── Section ──────────────────────────────────────────────── */
.section {
  padding: 64px 0;
}

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

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  margin-bottom: 48px;
}

/* ── Features Grid ────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: box-shadow 0.2s;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
}

.feature-card .icon {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.93rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ── Steps ────────────────────────────────────────────────── */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  counter-reset: step;
}

.step {
  text-align: center;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.step p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* ── Providers Row ────────────────────────────────────────── */
.providers {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.provider-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 0;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-primary);
}

/* ── Docs / Content Pages ─────────────────────────────────── */
.page-header {
  padding: 48px 0 24px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 48px;
}

.page-header h1 {
  font-size: 2.25rem;
  font-weight: 800;
}

.page-header p {
  color: var(--color-text-secondary);
  margin-top: 8px;
}

.content {
  max-width: 800px;
  padding-bottom: 64px;
}

.content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 48px 0 16px;
  padding-top: 16px;
}

.content h2:first-child {
  margin-top: 0;
}

.content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 32px 0 12px;
}

.content p {
  margin-bottom: 16px;
}

.content ul, .content ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.content li {
  margin-bottom: 8px;
}

.content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--color-bg-subtle);
  padding: 2px 6px;
  border-radius: 4px;
}

.content pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 20px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: 16px;
  font-size: 0.88rem;
  line-height: 1.6;
}

.content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 0.93rem;
}

.content th, .content td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.content th {
  font-weight: 600;
  background: var(--color-bg-subtle);
}

.content blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 12px 20px;
  margin-bottom: 16px;
  background: var(--color-primary-light);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.content blockquote p:last-child {
  margin-bottom: 0;
}

/* ── TOC ──────────────────────────────────────────────────── */
.toc {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 48px;
}

.toc h2 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 12px;
  padding: 0;
}

.toc ol {
  padding-left: 20px;
  margin: 0;
}

.toc li {
  margin-bottom: 6px;
  font-size: 0.93rem;
}

/* ── Severity badges ──────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-critical { background: #FFEBE6; color: var(--color-danger); }
.badge-warning { background: #FFF7E6; color: #974F0C; }
.badge-suggestion { background: #E3FCEF; color: var(--color-success); }

/* ── Support page ─────────────────────────────────────────── */
.support-card {
  background: var(--color-primary-light);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  margin-bottom: 40px;
}

.support-card h2 {
  margin: 0 0 8px;
  font-size: 1.3rem;
}

.support-card .email {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  display: block;
  margin: 16px 0;
}

.support-card p {
  color: var(--color-text-secondary);
  margin: 0;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.quick-link {
  display: block;
  padding: 24px;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-align: center;
  font-weight: 600;
  color: var(--color-text);
  transition: box-shadow 0.2s;
}

.quick-link:hover {
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.quick-link span {
  display: block;
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 16px 24px;
    gap: 16px;
  }

  .nav-links.open {
    display: flex;
  }

  .hero {
    padding: 48px 0 40px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1.05rem;
  }

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

  .steps {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .quick-links {
    grid-template-columns: 1fr;
  }

  .footer .container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .steps {
    grid-template-columns: 1fr;
  }
}