/* Cloudflare feature explainer — shared design system
   Neutral, modern landing-page styling. Light + dark aware. */

:root {
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --bg-elev: #ffffff;
  --border: #e6e8eb;
  --border-strong: #d4d8dd;
  --text: #1b1f24;
  --text-soft: #565f6b;
  --text-faint: #8a929c;
  --accent: #f6821f;         /* Cloudflare-ish orange */
  --accent-2: #ffb445;
  --accent-ink: #7a3d00;
  --blue: #2b6cb0;
  --green: #1f9d57;
  --purple: #7c4dff;
  --shadow: 0 1px 2px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.06);
  --shadow-lg: 0 12px 40px rgba(16,24,40,.12);
  --radius: 14px;
  --radius-sm: 10px;
  --maxw: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans JP", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --bg-soft: #151a20;
    --bg-elev: #1a2027;
    --border: #262d36;
    --border-strong: #333c47;
    --text: #eef1f5;
    --text-soft: #aeb7c2;
    --text-faint: #7d8794;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
    --shadow-lg: 0 12px 40px rgba(0,0,0,.5);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

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

/* ---------- Top navigation ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(160%) blur(12px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav .wrap { display: flex; align-items: center; gap: 16px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); }
.brand .logo {
  width: 26px; height: 26px; border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; color: #fff; font-size: 15px;
}
.nav .spacer { flex: 1; }
.nav a.navlink { color: var(--text-soft); font-weight: 500; font-size: 14px; }
.nav a.navlink:hover { color: var(--text); text-decoration: none; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 48px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -40% -10% auto -10%; height: 480px;
  background: radial-gradient(60% 60% at 30% 0%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 70%);
  z-index: -1;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .02em;
  color: var(--accent-ink); background: color-mix(in srgb, var(--accent) 16%, var(--bg));
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--border));
  padding: 5px 12px; border-radius: 999px;
}
@media (prefers-color-scheme: dark) { .eyebrow { color: var(--accent-2); } }
.hero h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.1; margin: 18px 0 14px; letter-spacing: -.02em; }
.hero p.lede { font-size: clamp(17px, 2.2vw, 20px); color: var(--text-soft); max-width: 720px; margin: 0; }

.btnrow { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer;
}
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { background: #e0740f; text-decoration: none; }
.btn.ghost { background: var(--bg-elev); color: var(--text); border-color: var(--border-strong); }
.btn.ghost:hover { border-color: var(--accent); text-decoration: none; }

/* ---------- Section ---------- */
section { padding: 40px 0; }
.section-head { max-width: 720px; margin-bottom: 28px; }
.section-head h2 { font-size: clamp(24px, 3.4vw, 32px); margin: 0 0 10px; letter-spacing: -.01em; }
.section-head p { color: var(--text-soft); font-size: 17px; margin: 0; }
.kicker { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin: 0 0 8px; }

/* ---------- Card grid ---------- */
.grid { display: grid; gap: 18px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; } }

.card {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-2px); border-color: var(--border-strong); box-shadow: var(--shadow-lg); }
a.card { color: inherit; display: block; }
a.card:hover { text-decoration: none; }
.card .ico {
  width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center;
  font-size: 21px; margin-bottom: 14px;
  background: color-mix(in srgb, var(--accent) 14%, var(--bg)); border: 1px solid var(--border);
}
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--text-soft); font-size: 15px; }
.card .more { margin-top: 12px; font-weight: 600; color: var(--accent); font-size: 14px; }

/* ---------- Feature list rows ---------- */
.feature-row {
  display: grid; grid-template-columns: 46px 1fr; gap: 16px;
  padding: 18px 0; border-top: 1px solid var(--border);
}
.feature-row:first-child { border-top: 0; }
.feature-row .ico {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 22px;
  background: color-mix(in srgb, var(--accent) 12%, var(--bg)); border: 1px solid var(--border);
}
.feature-row h4 { margin: 2px 0 4px; font-size: 17px; }
.feature-row p { margin: 0; color: var(--text-soft); font-size: 15px; }

/* ---------- Steps ---------- */
.steps { counter-reset: step; display: grid; gap: 14px; }
.step {
  display: grid; grid-template-columns: 34px 1fr; gap: 14px; align-items: start;
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px 18px;
}
.step::before {
  counter-increment: step; content: counter(step);
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent); color: #fff; font-weight: 700; font-size: 14px;
}
.step h4 { margin: 2px 0 4px; font-size: 16px; }
.step p { margin: 0; color: var(--text-soft); font-size: 15px; }
.step code { font-size: 13px; }

/* ---------- Callout / note ---------- */
.note {
  border-left: 3px solid var(--accent); background: var(--bg-soft);
  padding: 14px 18px; border-radius: 0 10px 10px 0; color: var(--text-soft); font-size: 15px;
}
.note.blue { border-left-color: var(--blue); }
.note.green { border-left-color: var(--green); }
.note strong { color: var(--text); }

/* ---------- Pills / tags ---------- */
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  font-size: 13px; font-weight: 600; padding: 4px 11px; border-radius: 999px;
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--text-soft);
}
.pill.free { color: var(--green); border-color: color-mix(in srgb, var(--green) 40%, var(--border)); }
.pill.paid { color: var(--accent-ink); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
@media (prefers-color-scheme: dark) { .pill.paid { color: var(--accent-2); } }
.pill.ent { color: var(--purple); border-color: color-mix(in srgb, var(--purple) 40%, var(--border)); }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 520px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); }
th { background: var(--bg-soft); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--text-faint); }
tr:last-child td { border-bottom: 0; }

/* ---------- Code ---------- */
code { font-family: var(--mono); background: var(--bg-soft); padding: 2px 6px; border-radius: 6px; font-size: 13.5px; border: 1px solid var(--border); }
pre { background: #0d1117; color: #e6edf3; padding: 16px 18px; border-radius: var(--radius-sm); overflow-x: auto; font-size: 13.5px; line-height: 1.6; border: 1px solid var(--border-strong); }
pre code { background: none; border: 0; padding: 0; color: inherit; }

/* ---------- CTA band ---------- */
.cta {
  margin: 20px 0; padding: 36px; border-radius: var(--radius);
  background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 16%, var(--bg-elev)), var(--bg-elev));
  border: 1px solid color-mix(in srgb, var(--accent) 26%, var(--border));
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.cta h3 { margin: 0 0 4px; font-size: 22px; }
.cta p { margin: 0; color: var(--text-soft); }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--border); margin-top: 40px; padding: 32px 0; color: var(--text-faint); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--text-soft); }

/* ---------- Breadcrumb ---------- */
.crumb { font-size: 14px; color: var(--text-faint); margin-bottom: 6px; }
.crumb a { color: var(--text-soft); }

/* ---------- Utility ---------- */
.muted { color: var(--text-faint); }
.center { text-align: center; }
.mt0 { margin-top: 0; }
.disclaimer { font-size: 13px; color: var(--text-faint); background: var(--bg-soft); border: 1px dashed var(--border-strong); border-radius: 10px; padding: 12px 16px; }