/*
 * CheckMail — design system
 * Technical monograph meets terminal
 */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,200..800&family=Figtree:wght@300..800&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  /* Surfaces */
  --bg:           #0b0b0e;
  --bg-lift:      #111116;
  --surface-1:    #14141a;
  --surface-2:    #1a1a22;
  --surface-3:    #22222c;
  --surface-hi:   #2b2b37;

  /* Hairlines */
  --line:         #1f1f28;
  --line-strong:  #2f2f3c;
  --line-bright:  #3e3e4f;

  /* Foreground */
  --fg:           #f4f4f7;
  --fg-2:         #c4c4cc;
  --fg-muted:     #7a7a87;
  --fg-dim:       #4a4a56;

  /* Accent: phosphor emerald */
  --accent:       #00e878;
  --accent-2:     #18f788;
  --accent-dim:   #00a656;
  --accent-bg:    rgba(0, 232, 120, 0.10);
  --accent-glow:  rgba(0, 232, 120, 0.35);
  --accent-edge:  rgba(0, 232, 120, 0.28);

  /* Semantic */
  --warn:         #ffb84a;
  --warn-bg:      rgba(255, 184, 74, 0.10);
  --warn-edge:    rgba(255, 184, 74, 0.30);
  --danger:       #ff5a6e;
  --danger-bg:    rgba(255, 90, 110, 0.10);
  --danger-edge:  rgba(255, 90, 110, 0.32);

  /* Code palette */
  --code-str:   #98f0c0;
  --code-kw:    #ffb47a;
  --code-key:   #8ad7ff;
  --code-num:   #d4a9ff;
  --code-com:   #5a5a66;

  /* Type */
  --display: 'Bricolage Grotesque', ui-sans-serif, system-ui, sans-serif;
  --sans:    'Figtree', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono:    'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Rhythm */
  --radius-sm: 4px;
  --radius:    6px;
  --radius-lg: 10px;

  /* Shadows */
  --shadow-1: 0 1px 0 rgba(255,255,255,0.02) inset, 0 0 0 1px var(--line);
  --shadow-2: 0 0 0 1px var(--line), 0 12px 32px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 0 1px var(--accent-edge), 0 0 32px -8px var(--accent-glow);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'ss01' on, 'cv11' on;
  min-height: 100vh;
  position: relative;
}

/* Grain + radial glow — atmosphere without decoration */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 1200px 700px at 50% -10%, rgba(0, 232, 120, 0.08), transparent 55%),
    radial-gradient(ellipse 800px 600px at 90% 10%, rgba(80, 40, 180, 0.05), transparent 60%);
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.07 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
body > * { position: relative; z-index: 1; }

/* Typography */
h1, h2, h3, h4, h5 {
  font-family: var(--display);
  font-weight: 500;
  color: var(--fg);
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 0.5em;
  font-variation-settings: 'wdth' 100, 'opsz' 48;
}
h1 {
  font-size: clamp(2.6rem, 5.5vw, 4.6rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  font-variation-settings: 'wdth' 100, 'opsz' 96;
}
h2 { font-size: clamp(1.6rem, 2.4vw, 2.1rem); letter-spacing: -0.025em; }
h3 { font-size: 1.15rem; letter-spacing: -0.015em; font-weight: 600; color: var(--fg); }
h4 { font-size: 0.92rem; letter-spacing: 0.01em; font-weight: 600; color: var(--fg); }

p { margin: 0 0 1em; color: var(--fg-2); }

a { color: var(--accent); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--accent-2); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

::selection { background: var(--accent); color: #001a0d; }

hr {
  border: 0;
  height: 1px;
  background: var(--line);
  margin: 40px 0;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 720px) {
  .container { padding: 0 20px; }
}

/* Monospace utility */
.mono {
  font-family: var(--mono);
  font-feature-settings: 'ss01' on;
  font-size: 0.88em;
}

/* Section label — "§01  section.name" */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 28px;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--line-bright);
}
.section-label .idx {
  color: var(--accent);
  font-weight: 500;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 11, 14, 0.72);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.35rem;
  color: var(--fg);
  letter-spacing: -0.03em;
  font-variation-settings: 'wdth' 100, 'opsz' 24;
}
.wordmark::before {
  content: '';
  display: inline-block;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300e878' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><circle cx='12' cy='12' r='10'/><path d='M7.5 12.5 l3 3 L16.5 9.5'/></svg>");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  box-shadow: 0 0 0 2px rgba(0, 232, 120, 0.18), 0 0 18px var(--accent-glow);
  animation: pulse 2.4s ease-in-out infinite;
}
.wordmark:hover { color: var(--fg); }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 2px rgba(0, 232, 120, 0.18), 0 0 18px var(--accent-glow); }
  50%      { box-shadow: 0 0 0 2px rgba(0, 232, 120, 0.28), 0 0 28px var(--accent-glow); }
}

.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
}
.nav-links a {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--fg-muted);
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}
.nav-links a[hidden] { display: none; }
.nav-links a:hover { color: var(--fg); background: var(--surface-1); text-decoration: none; }
.nav-links a.is-cta {
  margin-left: 8px;
  color: var(--bg);
  background: var(--accent);
  padding: 7px 14px;
  font-weight: 600;
}
.nav-links a.is-cta:hover { background: var(--accent-2); color: var(--bg); }

.nav-toggle-cb {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}
.nav-toggle:hover { background: var(--surface-1); }
.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--fg);
  border-radius: 2px;
  transition: transform 0.2s ease, background 0.15s ease, top 0.2s ease;
}
.nav-toggle-bars {
  position: relative;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: '';
  position: absolute;
  left: 0;
}
.nav-toggle-bars::before { top: -7px; }
.nav-toggle-bars::after  { top:  7px; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  background: var(--accent);
  color: #001a0d;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.005em;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s, box-shadow 0.2s;
  position: relative;
}
.btn:hover {
  background: var(--accent-2);
  text-decoration: none;
  box-shadow: 0 0 24px -6px var(--accent-glow);
  color: #001a0d;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--line-bright);
}
.btn-ghost:hover {
  background: var(--surface-1);
  border-color: var(--line-bright);
  color: var(--fg);
  box-shadow: none;
}

.btn-danger {
  background: var(--danger);
  color: #1a0005;
  border-color: var(--danger);
}
.btn-danger:hover { background: #ff7084; color: #1a0005; box-shadow: 0 0 24px -6px var(--danger-edge); }

.btn-block { display: flex; width: 100%; justify-content: center; }
.btn-sm { padding: 7px 12px; font-size: 0.82rem; }

.btn .arrow {
  display: inline-block;
  transition: transform 0.15s;
}
.btn:hover .arrow { transform: translateX(3px); }

/* ============ Hero ============ */
.hero {
  padding: 120px 0 112px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-edge), transparent);
  opacity: 0.6;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 72px;
  align-items: center;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 12px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-bg);
  border: 1px solid var(--accent-edge);
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 28px;
}
.hero-kicker::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}
.hero h1 {
  margin: 0 0 24px;
  color: var(--fg);
}
.hero h1 .accent { color: var(--accent); }
.hero p.lead {
  font-size: 1.12rem;
  color: var(--fg-2);
  max-width: 34em;
  margin-bottom: 36px;
  line-height: 1.55;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero code block */
.hero-terminal {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-1);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(0, 232, 120, 0.08),
    0 40px 80px -20px rgba(0, 0, 0, 0.8),
    0 0 100px -30px var(--accent-glow);
}
.hero-terminal .term-chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
}
.hero-terminal .term-chrome .dots {
  display: flex;
  gap: 6px;
}
.hero-terminal .term-chrome .dots span {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--surface-hi);
}
.hero-terminal .term-chrome .title {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}
.hero-terminal pre {
  margin: 0;
  border: 0;
  box-shadow: none;
  border-radius: 0;
  background: var(--surface-1);
  padding: 18px 22px;
  font-size: 0.78rem;
  line-height: 1.7;
}

/* ============ Generic section ============ */
section {
  padding: 88px 0;
  border-bottom: 1px solid var(--line);
}
section.no-border { border-bottom: 0; }
.section-title { margin-bottom: 12px; color: var(--fg); }
.section-sub {
  color: var(--fg-muted);
  max-width: 46em;
  margin: 0 0 44px;
  font-size: 1.02rem;
}

/* ============ SMTP feature (§01) ============ */
.smtp-feature { padding: 4px 0 0; }
.smtp-feature .section-title {
  font-size: clamp(2rem, 3.4vw, 2.9rem);
  line-height: 1.06;
  margin-bottom: 24px;
}
.smtp-feature .section-title .accent { color: var(--accent); }
.smtp-feature .section-sub {
  margin-bottom: 48px;
  max-width: 56em;
  font-size: 1.02rem;
}

.smtp-trace {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-1);
  overflow: hidden;
  max-width: 900px;
  margin-bottom: 48px;
  box-shadow:
    0 0 0 1px rgba(0, 232, 120, 0.08),
    0 30px 80px -20px rgba(0, 0, 0, 0.75),
    0 0 120px -30px var(--accent-glow);
}
.smtp-trace .term-chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
}
.smtp-trace .term-chrome .dots { display: flex; gap: 6px; }
.smtp-trace .term-chrome .dots span {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--surface-hi);
}
.smtp-trace .term-chrome .title {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}
.smtp-trace pre {
  margin: 0;
  padding: 26px 30px;
  border: 0;
  border-radius: 0;
  font-size: 0.84rem;
  line-height: 1.85;
  background: transparent;
  box-shadow: none;
  overflow-x: auto;
}
.smtp-trace .c       { color: var(--code-key); font-weight: 600; }
.smtp-trace .s       { color: var(--code-kw);  font-weight: 600; }
.smtp-trace .cmd     { color: var(--fg-2); }
.smtp-trace .comment { color: var(--fg-dim); }
.smtp-trace .verdict { color: var(--accent); font-weight: 600; }
.smtp-trace .hit {
  display: inline-block;
  background: var(--accent-bg);
  border-left: 2px solid var(--accent);
  padding: 2px 10px 2px 12px;
  margin-left: -14px;
  color: var(--accent);
  font-weight: 600;
  border-radius: 0 3px 3px 0;
  box-shadow: 0 0 24px -8px var(--accent-glow);
}

.smtp-why {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 1000px;
}
.smtp-why li {
  font-size: 0.92rem;
  color: var(--fg-2);
  line-height: 1.55;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.smtp-why li strong {
  display: block;
  color: var(--fg);
  font-weight: 600;
  margin-bottom: 4px;
  font-size: 0.95rem;
}
.smtp-why li code {
  font-size: 0.84em;
  color: var(--accent);
  background: var(--accent-bg);
  border-color: var(--accent-edge);
}
@media (max-width: 820px) {
  .smtp-why { grid-template-columns: 1fr; gap: 18px; }
  .smtp-feature .section-title { font-size: clamp(1.7rem, 6vw, 2.2rem); }
  .smtp-trace pre { padding: 18px 20px; font-size: 0.76rem; }
}

.easy-block {
  margin-top: 72px;
  padding-top: 44px;
  border-top: 1px solid var(--line);
}
.easy-block h3 {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin: 0 0 24px;
  font-weight: 500;
}
.easy-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px 36px;
  font-size: 0.92rem;
}
.easy-list li {
  padding-left: 22px;
  position: relative;
  color: var(--fg);
}
.easy-list li::before {
  content: '+';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 600;
}
.easy-list li span {
  color: var(--fg-dim);
  font-size: 0.84em;
  margin-left: 6px;
}
@media (max-width: 960px) {
  .easy-list { grid-template-columns: repeat(2, 1fr); gap: 12px 24px; }
}
@media (max-width: 520px) {
  .easy-list { grid-template-columns: 1fr; }
}

/* ============ Testimonials ============ */
.testimonial {
  margin: 32px 0 0;
  padding: 72px 44px 36px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(0, 232, 120, 0.04) 0%, transparent 60%),
    var(--surface-1);
  position: relative;
  max-width: 820px;
}
.testimonial-mark {
  position: absolute;
  top: -14px;
  left: 28px;
  font-family: var(--display);
  font-size: 4.5rem;
  line-height: 1;
  color: var(--accent);
  background: var(--bg);
  padding: 0 12px;
  font-weight: 700;
}
.testimonial blockquote {
  margin: 0;
  padding: 0;
  font-family: var(--display);
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  line-height: 1.4;
  color: var(--fg);
  font-weight: 400;
  letter-spacing: -0.01em;
}
.testimonial figcaption {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.testimonial .t-source {
  color: var(--accent);
  font-weight: 600;
}
.testimonial .t-meta {
  color: var(--fg-dim);
}
@media (max-width: 820px) {
  .testimonial { padding: 56px 22px 28px; }
  .testimonial-mark {
    font-size: 2.75rem;
    left: 14px;
    top: -6px;
    padding: 0 8px;
  }
  .testimonial blockquote { font-size: 1.1rem; }
  .testimonial figcaption { flex-wrap: wrap; gap: 6px 14px; }
}

/* ============ Checks list (legacy, kept for any other page) ============ */
.checks-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
.checks-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 0.98rem;
  color: var(--fg);
  position: relative;
}
.checks-list li:nth-child(odd) { padding-right: 32px; }
.checks-list li:nth-child(even) { padding-left: 32px; border-left: 1px solid var(--line); }
.checks-list li .num {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--fg-dim);
  min-width: 24px;
}
.checks-list li strong { font-weight: 600; color: var(--fg); }
.checks-list li span { color: var(--fg-muted); margin-left: 6px; font-size: 0.9rem; }
@media (max-width: 820px) {
  .checks-list { grid-template-columns: 1fr; }
  .checks-list li:nth-child(even) { padding-left: 4px; border-left: 0; }
  .checks-list li:nth-child(odd) { padding-right: 4px; }
}

/* ============ Code blocks ============ */
pre {
  background: var(--surface-1);
  color: var(--fg);
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.7;
  margin: 0 0 18px;
  font-feature-settings: 'ss01' on;
}
pre code { font-family: inherit; background: none; padding: 0; color: inherit; }
code {
  font-family: var(--mono);
  background: var(--surface-2);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 0.86em;
  color: var(--fg);
}
pre code, pre code * { font-feature-settings: 'ss01' on; }

.tok-str { color: var(--code-str); }
.tok-kw  { color: var(--code-kw); }
.tok-key { color: var(--code-key); }
.tok-c   { color: var(--code-com); }
.tok-num { color: var(--code-num); }

/* ============ Tables ============ */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 16px;
  font-size: 0.94rem;
}
th, td {
  text-align: left;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
thead th {
  font-family: var(--mono);
  font-weight: 500;
  color: var(--fg-muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 14px;
}
tbody tr:last-child td { border-bottom: 0; }
td { color: var(--fg); }
td.num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'ss01' on, 'tnum' on;
}
table + p.note { color: var(--fg-muted); font-size: 0.88rem; margin-top: 8px; }

/* Pricing callout — big number */
.price-row td.big {
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.45rem;
  letter-spacing: -0.015em;
  color: var(--fg);
  font-variation-settings: 'wdth' 100, 'opsz' 48;
}
.price-row td.accent { color: var(--accent); }

/* ============ Quick start grid ============ */
.quickstart-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.quickstart-grid > div {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-1);
  overflow: hidden;
}
.quickstart-grid h3 {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  margin: 0;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
  font-weight: 500;
}
.quickstart-grid pre {
  border: 0;
  border-radius: 0;
  margin: 0;
  padding: 16px 18px;
  font-size: 0.76rem;
  background: var(--surface-1);
  white-space: pre-wrap;
  word-break: break-word;
}
@media (max-width: 1040px) {
  .quickstart-grid { grid-template-columns: 1fr; }
  .quickstart-grid pre { white-space: pre; }
}

/* ============ Footer ============ */
.site-footer {
  padding: 72px 0 56px;
  margin-top: 0;
  color: var(--fg-muted);
  font-size: 0.82rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  line-height: 1.8;
  background: var(--bg-lift);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.footer-brand div { margin-bottom: 2px; color: var(--fg-muted); }
.footer-brand strong {
  color: var(--fg);
  font-weight: 500;
  font-family: var(--sans);
  letter-spacing: 0;
}
.footer-pride { margin-top: 16px !important; color: var(--fg-muted); }
.site-footer a { color: var(--fg-muted); text-decoration: none; border-bottom: 1px solid var(--line-strong); padding-bottom: 1px; }
.site-footer a:hover { color: var(--accent); border-bottom-color: var(--accent-edge); }
.footer-col h5 {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-dim);
  margin: 0 0 12px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin: 6px 0; }
@media (max-width: 820px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ============ Docs layout ============ */
.docs-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 64px;
  padding: 72px 0 100px;
}
.docs-nav {
  position: sticky;
  top: 96px;
  align-self: start;
  font-size: 0.88rem;
  border-right: 1px solid var(--line);
  padding-right: 24px;
}
.docs-nav h4 {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.68rem;
  color: var(--fg-dim);
  margin: 0 0 12px;
  font-weight: 500;
}
.docs-nav ul { list-style: none; padding: 0; margin: 0 0 28px; }
.docs-nav li { margin: 2px 0; }
.docs-nav a {
  display: block;
  padding: 6px 10px;
  margin-left: -10px;
  color: var(--fg-muted);
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
}
.docs-nav a:hover { color: var(--fg); background: var(--surface-1); text-decoration: none; }

.docs-content { min-width: 0; }
.docs-content h2 {
  font-size: 1.6rem;
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--fg);
}
.docs-content h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.docs-content h2 .anchor {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--fg-dim);
  margin-right: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
}
.docs-content h3 {
  margin-top: 32px;
  color: var(--fg);
  font-size: 1rem;
}
.docs-content p { color: var(--fg-2); }
.docs-content ul { padding-left: 20px; color: var(--fg-2); }
.docs-content li { margin: 6px 0; }
.docs-content table { margin-top: 16px; margin-bottom: 24px; }
.docs-content code { color: var(--accent); }

.endpoint {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.78rem;
  background: var(--surface-1);
  color: var(--fg);
  padding: 4px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  margin-right: 8px;
}
.endpoint .method {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

/* ============ Responsive core ============ */
@media (max-width: 960px) {
  .hero { padding: 72px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  section { padding: 64px 0; }
  h1 { font-size: clamp(2.2rem, 8vw, 3rem); }
}
@media (max-width: 820px) {
  .docs-layout { grid-template-columns: 1fr; gap: 28px; padding: 36px 0 60px; }
  .docs-nav { position: static; border-right: 0; border-bottom: 1px solid var(--line); padding-right: 0; padding-bottom: 16px; }
  .site-header .container { height: 56px; }
  .nav-links a { padding: 6px 8px; font-size: 0.82rem; }
  .nav-links a.is-cta { padding: 6px 11px; }
  th, td { padding: 12px 14px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px 20px 22px;
    background: rgba(11, 11, 14, 0.96);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--line);
  }
  .nav-links a {
    padding: 12px 14px;
    font-size: 1rem;
  }
  .nav-links a.is-cta {
    margin-left: 0;
    margin-top: 10px;
    padding: 12px 14px;
    justify-content: center;
  }
  .nav-toggle-cb:checked ~ .nav-links { display: flex; }
  .nav-toggle-cb:checked ~ .nav-toggle .nav-toggle-bars { background: transparent; }
  .nav-toggle-cb:checked ~ .nav-toggle .nav-toggle-bars::before {
    top: 0;
    transform: rotate(45deg);
  }
  .nav-toggle-cb:checked ~ .nav-toggle .nav-toggle-bars::after {
    top: 0;
    transform: rotate(-45deg);
  }
}

/* ============ Prose page (terms, privacy) ============ */
.prose {
  max-width: 780px;
  margin: 0 auto;
  padding: 72px 0 100px;
}
.prose h1 { font-size: clamp(2rem, 4vw, 2.8rem); margin-bottom: 10px; }
.prose .updated {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 44px;
  display: block;
}
.prose h2 {
  font-size: 1.3rem;
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--fg);
}
.prose h2 .anchor {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--fg-dim);
  margin-right: 12px;
  font-weight: 500;
}
.prose p { color: var(--fg-2); }
.prose ul, .prose ol { color: var(--fg-2); padding-left: 22px; }
.prose li { margin: 4px 0; }
.prose strong { color: var(--fg); font-weight: 600; }
.prose a { border-bottom: 1px solid var(--accent-edge); padding-bottom: 1px; }
.prose a:hover { border-bottom-color: var(--accent); }