/* Design tokens */
:root {
  --bg: #ffffff;
  --text: #121826;
  --muted: #4b5563;
  --muted-strong: #1f2933;
  --primary: #f15a24;
  --primary-700: #d94f1f;
  --accent: #121826;
  --surface: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  --radius: 18px;
}

/* Base */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 25% -10%, rgba(241, 90, 36, 0.08), transparent 60%),
    radial-gradient(800px 400px at 100% 0%, rgba(255, 171, 106, 0.1), transparent 45%),
    linear-gradient(#fff8f5, #ffffff);
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Nav */
.site-header { position: relative; padding-bottom: 32px; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}

.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 36px;
  height: 36px;
  display: block;
}
.brand-name { color: var(--text); text-decoration: none; font-weight: 700; letter-spacing: 0.2px; }

.nav-links { display: flex; align-items: center; gap: 12px; }
.nav-link {
  color: var(--text);
  opacity: 0.85;
  text-decoration: none;
  padding: 8px 10px;
}
.nav-link:hover { opacity: 1; color: var(--primary); }

/* Hero */
.hero { text-align: center; padding: 72px 0 32px; }
.hero h1 { margin: 0 0 12px; font-size: clamp(2.2rem, 5vw, 3.5rem); letter-spacing: -1px; color: var(--accent); }
.tagline { font-size: clamp(1.05rem, 2.4vw, 1.35rem); color: var(--muted-strong); margin: 0 auto 24px; max-width: 840px; }
.availability-note { margin: -4px auto 32px; max-width: 720px; color: var(--muted); font-size: clamp(0.95rem, 1.9vw, 1.12rem); }
.cta-row {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: center;
}

/* Buttons */
.btn { display: inline-block; text-decoration: none; border-radius: 14px; padding: 12px 20px; font-weight: 600; letter-spacing: 0.15px; transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease, color 0.15s ease; border: 1px solid transparent; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--primary-700); }

.btn-ghost { background: rgba(241, 90, 36, 0.06); color: var(--primary); border-color: rgba(241, 90, 36, 0.25); }
.btn-ghost:hover { background: rgba(241, 90, 36, 0.12); }

.link { color: var(--primary); text-decoration: none; font-weight: 600; }
.link:hover { text-decoration: underline; }

/* Features */
.section { padding: 60px 0; }
.section.narrow { padding: 36px 0; }
.section-title { text-transform: uppercase; letter-spacing: 2.4px; color: var(--muted); font-size: 0.85rem; margin-bottom: 14px; display: block; }
.section h2 { margin: 0 0 18px; font-size: clamp(1.75rem, 3vw, 2.4rem); letter-spacing: -0.5px; color: var(--accent); }
.section p.lead { margin: 0 auto 28px; color: var(--muted-strong); max-width: 780px; font-size: clamp(1rem, 2vw, 1.18rem); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 24px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); transition: transform 0.15s ease, border-color 0.15s ease; }
.card:hover { transform: translateY(-3px); border-color: rgba(241, 90, 36, 0.35); }
.card h3 { margin: 0 0 10px; letter-spacing: -0.3px; }
.card p { margin: 0; color: var(--muted); }
.card strong { color: var(--accent); }

/* Callout */
.callout {
  margin: 0;
  padding: 48px 24px;
  background: linear-gradient(180deg, rgba(241, 90, 36, 0.08), rgba(241, 90, 36, 0.02));
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid rgba(241, 90, 36, 0.2);
  box-shadow: var(--shadow);
  text-align: center;
}
.callout h2 { margin: 0 0 12px; letter-spacing: -0.3px; color: var(--accent); }
.callout p { margin: 0 0 20px; color: var(--muted-strong); }

.tabs { text-align: left; margin-top: 24px; }
.tab-list {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0 16px;
}
.tab {
  appearance: none;
  border: 1px solid rgba(241, 90, 36, 0.3);
  background: rgba(241, 90, 36, 0.08);
  color: var(--primary);
  padding: 10px 16px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.tab:hover { background: rgba(241, 90, 36, 0.14); }
.tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: var(--shadow);
}
.tab-descs { margin: 0 0 18px; max-width: 760px; }
.tab-desc { display: none; color: var(--muted-strong); }
.tab-desc.active { display: block; }
.tab-panels { display: grid; }
.tab-panel {
  display: none;
  padding: 18px;
  background: #111726;
  color: #f8fafc;
  border-radius: 16px;
  border: 1px solid rgba(15, 23, 42, 0.4);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  margin: 0;
}
.tab-panel.active { display: block; }
.tab-panel code {
  font-size: 0.9rem;
  line-height: 1.55;
  display: block;
  white-space: pre;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
.panel-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.3);
}

.section.dark {
  background: #101520;
  color: #f8fafc;
}
.section.dark .section-title { color: rgba(248, 250, 252, 0.72); }
.section.dark h2 { color: #ffffff; }
.section.dark p, .section.dark .card p { color: rgba(248, 250, 252, 0.78); }
.section.dark .card {
  background: rgba(16, 21, 32, 0.85);
  border-color: rgba(148, 163, 184, 0.2);
  box-shadow: none;
}
.section.dark .card:hover { border-color: rgba(241, 90, 36, 0.6); }
.section.dark .card h3 { color: #fff; }

.two-column {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  align-items: stretch;
}
.column-card {
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.column-card h3 { margin-top: 0; margin-bottom: 16px; font-size: 1.3rem; letter-spacing: -0.2px; color: var(--accent); }
.column-card ul { margin: 0; padding-left: 20px; color: var(--muted); }
.column-card li { margin-bottom: 12px; }

.stacked-list { display: grid; gap: 12px; margin-top: 20px; }
.stacked-item { display: flex; gap: 12px; align-items: flex-start; }
.stacked-item strong { display: block; color: var(--accent); font-size: 0.95rem; letter-spacing: 0.2px; text-transform: uppercase; }
.stacked-item p { margin: 4px 0 0; color: var(--muted); }

.eyebrow { text-transform: uppercase; letter-spacing: 2px; font-size: 0.8rem; color: var(--muted); margin-bottom: 8px; display: block; }

.pill-list { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 0; padding: 0; list-style: none; }
.pill-list li { padding: 10px 16px; border-radius: 999px; background: rgba(241, 90, 36, 0.08); color: var(--accent); font-weight: 600; }

.comparison { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; margin-top: 24px; }
.comparison-card {
  border-radius: var(--radius);
  padding: 26px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.comparison-card h3 { margin-top: 0; margin-bottom: 16px; font-size: 1.2rem; color: var(--accent); }
.comparison-card ul { margin: 0; padding-left: 18px; color: var(--muted); }
.comparison-card li { margin-bottom: 10px; }

.outro { text-align: center; padding: 72px 0; }
.outro p { max-width: 720px; margin: 0 auto 28px; color: var(--muted-strong); font-size: clamp(1rem, 2vw, 1.2rem); }

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  padding: 32px 0;
  background: #0f172a;
  color: rgba(248, 250, 252, 0.82);
  text-align: center;
  margin-top: 64px;
}
.site-footer a { color: #fff; }

.site-footer p { margin: 0; font-size: 0.9rem; letter-spacing: 0.2px; }

@media (max-width: 768px) {
  .hero { padding: 56px 0 24px; }
  .callout { padding: 36px 18px; }
  .column-card, .comparison-card { padding: 22px; }
}

/* Responsive tweaks */
@media (max-width: 640px) {
  .nav { gap: 8px; }
  .nav-links { gap: 8px; }
}