:root {
  --primary: #f54e00;
  --primary-active: #d04200;
  --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;
  --on-primary: #ffffff;
  --success: #1f8a65;
  --error: #cf2d56;
  --t-thinking: #dfa88f;
  --t-grep: #9fc9a2;
  --t-read: #9fbbe0;
  --t-edit: #c0a8dd;
  --t-done: #c08532;
  --mono: "JetBrains Mono", ui-monospace, SFMono-iegular, Menlo, Consolas, monospace;
  --sans: Inter, system-ui, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--body);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.015em;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--canvas);
  padding: 12px 16px;
  z-index: 200;
}
.skip-link:focus { left: 16px; top: 16px; }

h1, h2, h3 { color: var(--ink); font-weight: 400; margin: 0 0 16px; }
h1 { font-size: 72px; line-height: 1.1; letter-spacing: -0.03em; }
h2 { font-size: 36px; line-height: 1.2; letter-spacing: -0.02em; }
h3 { font-size: 26px; line-height: 1.25; letter-spacing: -0.0125em; }
p { margin: 0 0 16px; }

.eyebrow {
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}

.site-head {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-size: 18px; font-weight: 600; color: var(--ink); letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.nav-menu { display: flex; align-items: center; gap: 24px; }
.nav-link { font-size: 14px; font-weight: 500; color: var(--ink); }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 4px 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 12px 18px;
  letter-spacing: 0;
}
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-active); text-decoration: none; }
.btn-secondary { background: var(--surface-card); color: var(--ink); border-color: var(--hairline-strong); }
.btn-secondary:hover { text-decoration: none; }
.btn-ink { background: var(--ink); color: var(--canvas); padding: 14px 20px; }
.btn-ink:hover { text-decoration: none; opacity: 0.92; }
.text-link { font-weight: 500; color: var(--ink); border-bottom: 1px solid var(--hairline-strong); }
.text-link:hover { border-color: var(--ink); text-decoration: none; }

section { padding: 80px 0; }

.hero { background: var(--canvas); border-bottom: 1px solid var(--hairline); }
.hero-inner { max-width: 760px; }
.hero p.lead { font-size: 18px; color: var(--body); margin-bottom: 24px; }
.hero-cta { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.hero-figure { margin-top: 48px; }

.figure {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  overflow: hidden;
}
.figure img { display: block; width: 100%; height: auto; }
.figure figcaption { font-size: 13px; line-height: 1.4; color: var(--muted); padding: 12px 16px; border-top: 1px solid var(--hairline-soft); }
.figure figcaption a { color: var(--muted); border-bottom: 1px solid var(--hairline-strong); }

.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head p { color: var(--body); margin: 0; }

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

.card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
}
.card h3 { font-size: 22px; letter-spacing: -0.005em; }
.card p { color: var(--body); }
.card .card-link { margin-top: auto; padding-top: 12px; font-weight: 500; }

.article-card { padding: 0; overflow: hidden; }
.article-card img { display: block; width: 100%; height: 200px; object-fit: cover; }
.article-card .card-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }

.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;
  margin-bottom: 12px;
}

.band-soft { background: var(--canvas-soft); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }

.specs { width: 100%; border-collapse: collapse; background: var(--surface-card); border: 1px solid var(--hairline); border-radius: 12px; overflow: hidden; }
.specs caption { text-align: left; font-size: 13px; color: var(--muted); padding: 0 0 12px; }
.specs th, .specs td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--hairline-soft); font-size: 14px; }
.specs th { color: var(--ink); font-weight: 600; }
.specs td { color: var(--body); }
.specs tr:last-child td { border-bottom: 0; }
.specs .mono { font-family: var(--mono); font-size: 13px; }

.note {
  border-left: 3px solid var(--t-done);
  background: var(--canvas-soft);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
}
.note p { margin: 0; color: var(--body); }
.note strong { color: var(--ink); }

.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li { position: relative; padding: 0 0 12px 28px; color: var(--body); }
.checklist li::before { content: ""; position: absolute; left: 0; top: 6px; width: 12px; height: 12px; border-radius: 9999px; background: var(--t-grep); }

.article-layout { max-width: 760px; margin: 0 auto; }
.article-layout h2 { margin-top: 40px; }
.article-meta { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.article-body p { color: var(--body); }
.article-body ul { color: var(--body); padding-left: 20px; }
.article-body li { margin-bottom: 8px; }
.article-figure { margin: 32px 0; }

.related { margin-top: 48px; border-top: 1px solid var(--hairline); padding-top: 32px; }

.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.form-field input, .form-field textarea {
  width: 100%;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: var(--sans);
  font-size: 16px;
  color: var(--ink);
}
.form-field textarea { min-height: 120px; resize: vertical; }
.form-field input:focus, .form-field textarea:focus { outline: 2px solid var(--primary); outline-offset: 1px; border-color: var(--primary); }
.field-error { color: var(--error); font-size: 13px; margin: 6px 0 0; display: none; }
.form-field.has-error input, .form-field.has-error textarea { border-color: var(--error); }
.form-field.has-error .field-error { display: block; }
.form-status { font-size: 14px; margin-top: 8px; min-height: 20px; }
.form-status.success { color: var(--success); }
.btn[disabled] { opacity: 0.6; cursor: progress; }

.site-footer { background: var(--canvas); border-top: 1px solid var(--hairline); padding: 64px 0 48px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer-head { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin: 0 0 16px; }
.footer-link { display: block; font-size: 14px; color: var(--body); margin-bottom: 10px; }
.footer-note { font-size: 14px; color: var(--body); max-width: 360px; }
.footer-updated { font-size: 13px; color: var(--muted); }
.footer-base { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--hairline); }
.footer-disclaimer { font-size: 13px; color: var(--muted); }
.footer-copy { font-size: 13px; color: var(--muted-soft); }

.cookie-banner {
  position: fixed;
  left: 24px;
  right: 24px;
  bottom: 24px;
  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: 24px;
  z-index: 150;
}
.cookie-text { font-size: 14px; color: var(--body); margin: 0; }
.cookie-text a { color: var(--ink); border-bottom: 1px solid var(--hairline-strong); }
.cookie-actions { display: flex; gap: 12px; flex-shrink: 0; }

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

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 8px 24px 16px;
  }
  .nav-menu.open { display: flex; }
  .nav-menu .nav-link { padding: 12px 0; width: 100%; border-bottom: 1px solid var(--hairline-soft); }
}

@media (max-width: 640px) {
  h1 { font-size: 32px; }
  h2 { font-size: 28px; }
  section { padding: 56px 0; }
  .grid-3, .grid-2, .contact-wrap, .footer-grid { grid-template-columns: 1fr; }
  .cookie-banner { flex-direction: column; align-items: stretch; }
  .cookie-actions { justify-content: flex-end; }
}