:root {
  --bg-base: #0f1115;
  --bg-mantle: #15181e;
  --bg-crust: #1a1d24;
  --bg-surface0: #282c34;
  --bg-surface1: #3b4048;
  --text-primary: #e1e4e8;
  --text-secondary: #a0a4aa;
  --text-muted: #6b7280;
  --accent-blue: #0ea5e9;
  --accent-blue-deep: #0284c7;
  --accent-green: #34d399;
  --accent-yellow: #fbbf24;
  --accent-red: #ef4444;
  --accent-mauve: #a78bfa;
  --radius: 14px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Helvetica, Arial, sans-serif;
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-blue); text-decoration: none; }
a:hover { color: #38bdf8; }

h1, h2, h3 { line-height: 1.2; margin: 0; font-weight: 700; letter-spacing: -0.02em; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background-color: rgba(15, 17, 21, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--bg-surface0);
}
.topbar .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand img { height: 26px; width: 26px; }
.brand span { font-size: 1.2rem; font-weight: 700; }
.brand .sig { color: var(--accent-blue); }
.brand .yard { color: var(--accent-blue-deep); }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a { color: var(--text-secondary); font-size: 0.94rem; font-weight: 500; }
.nav-links a:hover { color: var(--text-primary); }
@media (max-width: 720px) { .nav-links a.hide-sm { display: none; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.25rem; border-radius: 10px;
  font-weight: 600; font-size: 0.95rem; cursor: pointer;
  border: 1px solid transparent; transition: all 0.15s ease;
  white-space: nowrap;
}
.btn-primary { background-color: var(--accent-blue); color: #06121b; }
.btn-primary:hover { background-color: #38bdf8; color: #06121b; }
.btn-ghost { background-color: var(--bg-surface0); color: var(--text-primary); border-color: var(--bg-surface1); }
.btn-ghost:hover { background-color: var(--bg-surface1); color: var(--text-primary); }
.btn svg { width: 18px; height: 18px; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 5.5rem 0 3rem; text-align: center; }
.hero::before {
  content: ""; position: absolute; inset: -40% 0 auto 0; height: 70%;
  background: radial-gradient(60% 60% at 50% 0%, rgba(14, 165, 233, 0.18), transparent 70%);
  pointer-events: none;
}
.hero .wrap { position: relative; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.35rem 0.85rem; border-radius: 999px;
  background-color: var(--bg-crust); border: 1px solid var(--bg-surface0);
  color: var(--text-secondary); font-size: 0.82rem; font-weight: 500;
  margin-bottom: 1.75rem;
}
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-green); box-shadow: 0 0 8px var(--accent-green); }
.hero h1 { font-size: clamp(2.2rem, 5.5vw, 3.6rem); }
.hero h1 .grad {
  background: linear-gradient(120deg, var(--accent-blue), #7dd3fc);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead {
  max-width: 660px; margin: 1.4rem auto 0;
  font-size: clamp(1.05rem, 2.2vw, 1.25rem); color: var(--text-secondary);
}
.hero-actions { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; margin-top: 2.2rem; }
.hero-sub { margin-top: 1.4rem; font-size: 0.85rem; color: var(--text-muted); }
.hero-sub code {
  background: var(--bg-crust); border: 1px solid var(--bg-surface0);
  padding: 0.15rem 0.5rem; border-radius: 6px; color: var(--accent-green);
  font-family: "Cascadia Code", "Consolas", ui-monospace, monospace; font-size: 0.82rem;
}

/* ---------- Hero screenshot ---------- */
.hero-shot { margin-top: 3.5rem; position: relative; }
.hero-shot .frame {
  border: 1px solid var(--bg-surface0); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 30px 80px -30px rgba(0,0,0,0.8);
  background: var(--bg-mantle);
}
.hero-shot img { display: block; width: 100%; height: auto; }

/* ---------- Sections ---------- */
section { padding: 4.5rem 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 3rem; }
.section-head h2 { font-size: clamp(1.7rem, 4vw, 2.3rem); }
.section-head p { color: var(--text-secondary); margin-top: 0.9rem; font-size: 1.05rem; }
.kicker { color: var(--accent-blue); font-weight: 600; font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; }

/* ---------- Features grid ---------- */
.features {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem;
}
@media (max-width: 900px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .features { grid-template-columns: 1fr; } }
.card {
  background-color: var(--bg-mantle); border: 1px solid var(--bg-surface0);
  border-radius: var(--radius); padding: 1.6rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--bg-surface1); transform: translateY(-3px); }
.card .ico {
  width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(14, 165, 233, 0.12); margin-bottom: 1rem;
}
.card .ico svg { width: 22px; height: 22px; stroke: var(--accent-blue); }
.card h3 { font-size: 1.12rem; margin-bottom: 0.4rem; }
.card p { margin: 0; color: var(--text-secondary); font-size: 0.95rem; }

/* ---------- Showcase (alternating) ---------- */
.showcase-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center;
  margin-bottom: 4.5rem;
}
.showcase-row:last-child { margin-bottom: 0; }
.showcase-row.reverse .txt { order: 2; }
@media (max-width: 820px) {
  .showcase-row { grid-template-columns: 1fr; gap: 1.5rem; }
  .showcase-row.reverse .txt { order: 0; }
}
.showcase-row h3 { font-size: 1.5rem; margin-bottom: 0.7rem; }
.showcase-row p { color: var(--text-secondary); margin: 0; }
.shot-frame {
  border: 1px solid var(--bg-surface0); border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 20px 50px -25px rgba(0,0,0,0.7); background: var(--bg-mantle);
}
.shot-frame img { display: block; width: 100%; height: auto; }

/* ---------- Serilog / code section ---------- */
.code-section { background-color: var(--bg-mantle); border-top: 1px solid var(--bg-surface0); border-bottom: 1px solid var(--bg-surface0); }
.code-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3rem; align-items: center; }
@media (max-width: 820px) { .code-grid { grid-template-columns: 1fr; gap: 2rem; } }
.code-grid h2 { font-size: clamp(1.6rem, 4vw, 2.2rem); margin-bottom: 1rem; }
.code-grid p { color: var(--text-secondary); margin: 0 0 1.5rem; }
.steps { list-style: none; padding: 0; margin: 0; }
.steps li { display: flex; gap: 0.8rem; margin-bottom: 0.9rem; align-items: flex-start; color: var(--text-secondary); }
.steps .n {
  flex: none; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(14, 165, 233, 0.12); color: var(--accent-blue); font-size: 0.8rem; font-weight: 700;
}
.code-block {
  background: var(--bg-base); border: 1px solid var(--bg-surface0); border-radius: var(--radius);
  overflow: hidden;
}
.code-block .code-head {
  display: flex; align-items: center; gap: 0.5rem; padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--bg-surface0); background: var(--bg-crust);
}
.code-block .dots { display: flex; gap: 0.4rem; }
.code-block .dots i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.code-block .fname { color: var(--text-muted); font-size: 0.8rem; margin-left: 0.4rem; font-family: ui-monospace, monospace; }
.code-block pre {
  margin: 0; padding: 1.25rem; overflow-x: auto;
  font-family: "Cascadia Code", "Consolas", ui-monospace, monospace;
  font-size: 0.86rem; line-height: 1.7; color: var(--text-primary);
}
.tok-key { color: var(--accent-mauve); }
.tok-type { color: var(--accent-blue); }
.tok-str { color: var(--accent-green); }
.tok-com { color: var(--text-muted); font-style: italic; }
.tok-mem { color: var(--accent-yellow); }

/* ---------- MCP callout ---------- */
.mcp-callout {
  background: linear-gradient(135deg, rgba(14,165,233,0.10), rgba(167,139,250,0.08));
  border: 1px solid var(--bg-surface0); border-radius: 20px;
  padding: 2.75rem; display: grid; grid-template-columns: 1.2fr 1fr; gap: 2.5rem; align-items: center;
}
@media (max-width: 820px) { .mcp-callout { grid-template-columns: 1fr; padding: 1.75rem; } }
.mcp-callout h2 { font-size: clamp(1.5rem, 3.5vw, 2rem); margin-bottom: 0.8rem; }
.mcp-callout p { color: var(--text-secondary); margin: 0 0 1.25rem; }
.tool-list { display: flex; flex-direction: column; gap: 0.7rem; }
.tool-item {
  display: flex; gap: 0.7rem; align-items: baseline; padding: 0.7rem 0.9rem;
  background: var(--bg-crust); border: 1px solid var(--bg-surface0); border-radius: 10px;
}
.tool-item code { color: var(--accent-blue); font-family: ui-monospace, monospace; font-size: 0.85rem; flex: none; }
.tool-item span { color: var(--text-secondary); font-size: 0.85rem; }

/* ---------- CTA ---------- */
.cta { text-align: center; }
.cta-box {
  background: var(--bg-mantle); border: 1px solid var(--bg-surface0); border-radius: 20px;
  padding: 3.5rem 2rem;
  background-image: radial-gradient(60% 120% at 50% 0%, rgba(14,165,233,0.12), transparent 60%);
}
.cta h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
.cta p { color: var(--text-secondary); max-width: 520px; margin: 1rem auto 2rem; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--bg-surface0); padding: 2.5rem 0; margin-top: 1rem; }
footer .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
footer .brand span { font-size: 1rem; }
footer .f-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
footer .f-links a { color: var(--text-secondary); font-size: 0.9rem; }
footer .f-links a:hover { color: var(--text-primary); }
footer .copyright { color: var(--text-muted); font-size: 0.85rem; width: 100%; text-align: center; padding-top: 1.5rem; border-top: 1px solid var(--bg-surface0); margin-top: 0.5rem; }

.pill { display:inline-flex; align-items:center; gap:0.4rem; font-size:0.8rem; color: var(--text-secondary); background: var(--bg-crust); border:1px solid var(--bg-surface0); padding:0.3rem 0.7rem; border-radius:999px; }