:root {
  --canvas: #f7f7f4;
  --canvas-soft: #fafaf7;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --ink: #26251e;
  --body: #5a5852;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --primary: #f54e00;
  --primary-active: #d04200;
  --on-primary: #ffffff;
  --success: #1f8a65;
  --error: #cf2d56;
  --t-thinking: #dfa88f;
  --t-grep: #9fc9a2;
  --t-read: #9fbbe0;
  --t-edit: #c0a8dd;
  --t-done: #c08532;
  --maxw: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--body);
  font-family: "Inter", system-ui, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.15px;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  color: var(--ink);
  font-weight: 400;
  margin: 0 0 16px;
}

h1 { font-size: 72px; line-height: 1.1; letter-spacing: -2.16px; }
h2 { font-size: 36px; line-height: 1.2; letter-spacing: -0.72px; }
h3 { font-size: 26px; line-height: 1.25; letter-spacing: -0.325px; }
h4 { font-size: 18px; font-weight: 600; line-height: 1.4; letter-spacing: 0; }

p { margin: 0 0 16px; }

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

.label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}

.badge {
  display: inline-block;
  background: var(--surface-strong);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: 9999px;
  padding: 4px 10px;
}

.top-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 50;
}

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

.brand {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
}
.brand span { color: var(--primary); }
.brand:hover { text-decoration: none; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-menu a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
}
.nav-menu a:hover { color: var(--ink); text-decoration: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  display: block;
}

.btn {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  border-radius: 8px;
  padding: 13px 18px;
  cursor: pointer;
  border: 1px solid transparent;
  text-align: center;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-active); }
.btn-secondary {
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
}
.btn-ink { background: var(--ink); color: var(--canvas); padding: 15px 20px; }
.btn-ink:hover { background: #15140f; }

.section { padding: 80px 0; }
.section-tight { padding: 56px 0; }

.hero {
  border-bottom: 1px solid var(--hairline);
  background: var(--canvas);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero-sub {
  font-size: 18px;
  color: var(--body);
  max-width: 46ch;
  margin-bottom: 24px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-figure {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--surface-card);
}
.hero-figure img { width: 100%; height: 420px; object-fit: cover; display: block; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
}
.card h3 { font-size: 22px; letter-spacing: -0.11px; }
.card h4 { margin-bottom: 8px; }
.card p { margin-bottom: 0; color: var(--body); }

.article-card { overflow: hidden; padding: 0; display: flex; flex-direction: column; }
.article-card img { width: 100%; height: 200px; object-fit: cover; display: block; border-bottom: 1px solid var(--hairline); }
.article-card .card-body { padding: 24px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.article-card .card-body p { flex: 1; }
.article-card .read-link { color: var(--ink); font-weight: 600; font-size: 14px; }

.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head p { color: var(--body); }

.steps { counter-reset: step; display: grid; gap: 16px; }
.step {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  color: var(--ink);
  background: var(--surface-strong);
  border-radius: 9999px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step h4 { margin-bottom: 4px; }
.step p { margin-bottom: 0; }

.callout {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--t-done);
  border-radius: 12px;
  padding: 24px;
  margin: 24px 0;
}
.callout p { margin-bottom: 0; }

.code-block {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 20px;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  color: var(--ink);
  overflow-x: auto;
}

.tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0; }
.tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: 9999px;
  padding: 4px 10px;
  color: var(--ink);
}
.tag.peach { background: var(--t-thinking); }
.tag.mint { background: var(--t-grep); }
.tag.blue { background: var(--t-read); }
.tag.lav { background: var(--t-edit); }
.tag.gold { background: var(--t-done); color: var(--on-primary); }

.article-wrap { max-width: 760px; margin: 0 auto; }
.article-hero img { width: 100%; height: 360px; object-fit: cover; border-radius: 12px; border: 1px solid var(--hairline); }
.article-meta { color: var(--muted); font-size: 14px; margin: 16px 0 8px; }
.article-body h2 { margin-top: 40px; }
.article-body h3 { margin-top: 28px; }
.article-body ul, .article-body ol { color: var(--body); padding-left: 22px; margin: 0 0 16px; }
.article-body li { margin-bottom: 8px; }
.caption { font-size: 13px; color: var(--muted); margin-top: 8px; }

.related { border-top: 1px solid var(--hairline); margin-top: 56px; padding-top: 40px; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-info p { color: var(--body); }
.contact-info strong { color: var(--ink); }

.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.form-field input {
  width: 100%;
  height: 44px;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 16px;
  color: var(--ink);
}
.form-field input:focus { outline: none; border-color: var(--ink); }
.form-msg { font-size: 14px; margin-top: 12px; min-height: 20px; }
.form-msg.success { color: var(--success); }

.legal-wrap { max-width: 760px; margin: 0 auto; }
.legal-wrap h2 { margin-top: 36px; font-size: 26px; letter-spacing: -0.325px; }
.legal-wrap p, .legal-wrap li { color: var(--body); }
.legal-wrap ul { padding-left: 22px; }

.footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 48px;
}
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.88px; color: var(--muted); margin-bottom: 4px; }
.footer-col a { font-size: 14px; color: var(--body); }
.footer-col a:hover { color: var(--ink); }
.footer-note { font-size: 14px; color: var(--body); max-width: 40ch; }
.footer-bottom {
  border-top: 1px solid var(--hairline);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-bottom p { font-size: 13px; color: var(--muted); margin: 0; }

.cookie-banner {
  position: fixed;
  bottom: 16px;
  left: 16px;
  right: 16px;
  max-width: 720px;
  margin: 0 auto;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  z-index: 100;
}
.cookie-banner p { font-size: 14px; margin: 0; color: var(--body); }
.cookie-actions { display: flex; gap: 12px; flex-shrink: 0; }

@media (max-width: 1024px) {
  h1 { font-size: 56px; letter-spacing: -1.5px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  h1 { font-size: 36px; letter-spacing: -1px; }
  h2 { font-size: 28px; }
  .nav-toggle { display: flex; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
    gap: 16px;
  }
  .nav-menu.open { display: flex; }
  .hero-grid, .grid-2, .grid-3, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .hero-figure img { height: 280px; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
}