:root {
  --bg: #0b0f14;
  --bg-alt: #11161e;
  --card: #151c26;
  --border: #232c3a;
  --text: #e6edf3;
  --muted: #9aa7b4;
  --accent: #ff1414;
  --accent-2: #ff4d4d;
  --danger: #f87171;
  --warn: #fbbf24;
  --ok: #34d399;
  --radius: 14px;
  --max: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 17px;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--accent); color: #0b0f14; font-weight: 700; padding: 10px 16px;
  border-radius: 0 0 10px 0; text-decoration: none;
}
.skip-link:focus { left: 0; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { padding: 14px 0; background: var(--bg-alt); border-bottom: 1px solid var(--border); font-size: 13px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); text-decoration: none; }
.breadcrumb .separator { color: var(--muted); margin: 0 8px; }
.breadcrumb [itemprop="name"] { color: var(--text); }

/* ---------- Hero trust ---------- */
.hero-trust { margin-top: 22px; color: var(--ok); font-size: 14px; font-weight: 600; }
.hero-trust .star { color: var(--warn); }

/* ---------- Table of contents ---------- */
.toc-section { padding: 28px 0; }
.table-of-contents {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 28px;
}
.table-of-contents h2 { font-size: 18px; margin-bottom: 12px; }
.table-of-contents ol { margin: 0 0 0 20px; }
.table-of-contents li { margin: 6px 0; font-size: 15px; }
.table-of-contents a { color: var(--accent-2); }
.table-of-contents a:hover { color: var(--accent); text-decoration: none; }

/* ---------- Domain tags ---------- */
.domain-grid { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 20px; }
.domain-tag {
  font-family: Consolas, "Courier New", monospace; font-size: 13px;
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: 999px;
  padding: 6px 14px; color: var(--muted);
}

/* ---------- Cycle list ---------- */
.cycle-list { margin: 16px 0 16px 22px; }
.cycle-list li { margin: 10px 0; }

/* ---------- Checklist ---------- */
.checklist { list-style: none; margin: 16px 0 16px 0; }
.check-item {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 22px; margin-bottom: 12px;
}
.check-item strong { color: var(--accent-2); }
.check-item p { color: var(--muted); font-size: 15px; margin: 6px 0 0; }

/* ---------- Author box (E-E-A-T) ---------- */
.author-section { padding: 0 0 48px; }
.author-box {
  display: flex; gap: 20px; align-items: flex-start;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px;
}
.author-avatar {
  flex: 0 0 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b0f14; font-weight: 800; font-size: 20px;
  display: flex; align-items: center; justify-content: center;
}
.author-body h3 { margin: 0 0 8px; font-size: 18px; }
.author-body p { font-size: 15px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 20, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font-weight: 800; font-size: 20px; color: var(--text); letter-spacing: -0.3px; display: flex; align-items: center; gap: 10px; }
.logo img { height: 40px; width: auto; display: block; }
.logo em { color: var(--accent); font-style: normal; }
.nav-links { display: flex; align-items: center; }
.nav-links ul { display: flex; list-style: none; gap: 28px; margin: 0; padding: 0; }
.nav-links a { color: var(--text); font-weight: 600; font-size: 15px; }
.nav-links a:hover { color: var(--accent); text-decoration: none; }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 26px; cursor: pointer; line-height: 1; }

/* ---------- Hero ---------- */
.hero {
  padding: 84px 0 64px;
  background:
    radial-gradient(900px 380px at 85% -10%, rgba(255, 20, 20, 0.16), transparent 60%),
    radial-gradient(700px 320px at -10% 10%, rgba(255, 77, 77, 0.12), transparent 60%),
    var(--bg);
  border-bottom: 1px solid var(--border);
}
.hero h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.15; letter-spacing: -0.8px; max-width: 820px; }
.hero h1 em { color: var(--accent); font-style: normal; }
.hero p { margin-top: 18px; font-size: 18px; color: var(--muted); max-width: 680px; }
.hero-meta { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 14px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px; font-size: 13px; font-weight: 700;
  background: var(--card); border: 1px solid var(--border); color: var(--text);
}
.badge.warn { color: var(--warn); border-color: rgba(251, 191, 36, 0.4); }
.badge.danger { color: var(--danger); border-color: rgba(248, 113, 113, 0.4); }
.badge.ok { color: var(--ok); border-color: rgba(52, 211, 153, 0.4); }

/* ---------- Sections ---------- */
section { padding: 56px 0; }
section + section { border-top: 1px solid var(--border); }
.eyebrow {
  display: inline-block; text-transform: uppercase; letter-spacing: 2px;
  font-size: 12px; font-weight: 800; color: var(--accent); margin-bottom: 10px;
}
h2 { font-size: clamp(24px, 3.6vw, 34px); letter-spacing: -0.5px; line-height: 1.2; }
h3 { font-size: 20px; margin: 26px 0 10px; }
.lead { color: var(--muted); margin: 14px 0 26px; max-width: 720px; }
p { margin: 12px 0; }
ul, ol { margin: 12px 0 12px 22px; }
li { margin: 6px 0; }

/* ---------- Cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; margin-top: 24px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; transition: transform 0.15s ease, border-color 0.15s ease;
}
.card:hover { transform: translateY(-3px); border-color: var(--accent); }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card .icon { font-size: 26px; display: block; margin-bottom: 12px; }
.card p { color: var(--muted); font-size: 15px; }

/* ---------- Callout ---------- */
.callout {
  border-left: 4px solid var(--accent); background: var(--bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0; padding: 20px 24px; margin: 24px 0;
}
.callout.warn { border-color: var(--warn); }
.callout.danger { border-color: var(--danger); }
.callout.ok { border-color: var(--ok); }
.callout strong:first-child { display: block; margin-bottom: 6px; }

/* ---------- Table ---------- */
table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); }
th { background: var(--bg-alt); color: var(--text); font-weight: 700; }
td { color: var(--muted); }
tr:hover td { background: var(--bg-alt); }

/* ---------- Article ---------- */
.article { max-width: 780px; }
.article .meta { color: var(--muted); font-size: 14px; margin: 14px 0 26px; display: flex; gap: 16px; flex-wrap: wrap; }
.article img { width: 100%; border-radius: var(--radius); border: 1px solid var(--border); }
.article blockquote {
  border-left: 3px solid var(--accent); padding: 6px 18px; margin: 20px 0;
  color: var(--muted); font-style: italic;
}

/* ---------- FAQ ---------- */
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; background: var(--card); }
.faq-q {
  width: 100%; background: none; border: none; color: var(--text); text-align: left;
  padding: 16px 20px; font-size: 16px; font-weight: 700; cursor: pointer; font-family: inherit;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq-q .chev { transition: transform 0.2s ease; color: var(--accent); }
.faq-item.open .chev { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; }
.faq-a-inner { padding: 0 20px 18px; color: var(--muted); }

/* ---------- CTA ---------- */
.cta {
  background: linear-gradient(120deg, rgba(255, 20, 20, 0.14), rgba(255, 77, 77, 0.08));
  border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; margin: 40px 0; text-align: center;
}
.cta h3 { margin: 0 0 8px; font-size: 22px; }
.cta p { color: var(--muted); max-width: 560px; margin: 0 auto 18px; }

.btn {
  display: inline-block; padding: 12px 24px; border-radius: 999px; font-weight: 700; font-size: 15px;
  background: var(--accent); color: #0b0f14; border: none; cursor: pointer; font-family: inherit;
  transition: background 0.15s ease, transform 0.1s ease;
}
.btn:hover { background: var(--accent-2); text-decoration: none; transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 700; color: var(--text); }
.field input, .field textarea, .field select {
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 14px; color: var(--text); font-size: 15px; font-family: inherit;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); }
.field textarea { resize: vertical; min-height: 140px; }
.form-note { color: var(--muted); font-size: 13px; margin-top: 14px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 44px 0 60px; margin-top: 40px; background: var(--bg-alt); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 28px; }
.footer-grid h4 { font-size: 15px; margin-bottom: 12px; }
.footer-grid ul { list-style: none; margin: 0; }
.footer-grid ul li { margin: 8px 0; }
.footer-grid ul a { color: var(--muted); font-size: 15px; }
.footer-grid ul a:hover { color: var(--accent); text-decoration: none; }
.footer-bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ---------- Responsive ---------- */
@media (max-width: 800px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; background: var(--bg-alt);
    border: 1px solid var(--border); border-radius: var(--radius); padding: 12px;
    position: absolute; top: 68px; left: 24px; right: 24px;
  }
  .nav-links.open { display: block; }
  .nav-links ul { flex-direction: column; gap: 4px; }
  .nav-links a { padding: 10px 6px; display: block; }
  .form-grid { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 44px; }
  section { padding: 40px 0; }
}