/* Base */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

:root {
  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", var(--font-sans);
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --bg: #f6f7fb;
  --text: #0b1220;
  --muted: #445066;
  --border: rgba(15, 23, 42, 0.14);
  --card: rgba(255, 255, 255, 0.78);
  --card-solid: #ffffff;

  --accent: #0891b2;
  --accent-2: #f59e0b;
  --shadow: 0 22px 70px rgba(2, 6, 23, 0.14);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #070a0f;
    --text: #e5e7eb;
    --muted: #a1a1aa;
    --border: rgba(148, 163, 184, 0.18);
    --card: rgba(12, 18, 28, 0.68);
    --card-solid: #0c121c;

    --accent: #22d3ee;
    --accent-2: #fbbf24;
    --shadow: 0 28px 90px rgba(0, 0, 0, 0.55);
  }
}

html[data-theme="light"] {
  --bg: #f6f7fb;
  --text: #0b1220;
  --muted: #445066;
  --border: rgba(15, 23, 42, 0.14);
  --card: rgba(255, 255, 255, 0.78);
  --card-solid: #ffffff;

  --accent: #0891b2;
  --accent-2: #f59e0b;
  --shadow: 0 22px 70px rgba(2, 6, 23, 0.14);
}

html[data-theme="dark"] {
  --bg: #070a0f;
  --text: #e5e7eb;
  --muted: #a1a1aa;
  --border: rgba(148, 163, 184, 0.18);
  --card: rgba(12, 18, 28, 0.68);
  --card-solid: #0c121c;

  --accent: #22d3ee;
  --accent-2: #fbbf24;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.55);
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px circle at 14% -12%, rgba(8, 145, 178, 0.32), transparent 60%),
    radial-gradient(760px circle at 88% 8%, rgba(245, 158, 11, 0.20), transparent 55%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.65), transparent 36%),
    repeating-linear-gradient(90deg, rgba(15, 23, 42, 0.05) 0, rgba(15, 23, 42, 0.05) 1px, transparent 1px, transparent 62px),
    repeating-linear-gradient(0deg, rgba(15, 23, 42, 0.05) 0, rgba(15, 23, 42, 0.05) 1px, transparent 1px, transparent 62px);
}

html[data-theme="dark"] body::before {
  background:
    radial-gradient(900px circle at 18% -10%, rgba(34, 211, 238, 0.20), transparent 60%),
    radial-gradient(820px circle at 85% 12%, rgba(251, 191, 36, 0.14), transparent 55%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 40%),
    repeating-linear-gradient(90deg, rgba(148, 163, 184, 0.07) 0, rgba(148, 163, 184, 0.07) 1px, transparent 1px, transparent 72px),
    repeating-linear-gradient(0deg, rgba(148, 163, 184, 0.07) 0, rgba(148, 163, 184, 0.07) 1px, transparent 1px, transparent 72px);
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-color: color-mix(in srgb, var(--accent) 70%, transparent);
  outline-offset: 3px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(246, 247, 251, 0.78);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  backdrop-filter: blur(14px);
}

html[data-theme="dark"] .site-header {
  background: rgba(7, 10, 15, 0.72);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo a {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.1rem;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-cta {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--card-solid) 82%, transparent);
}

.header-cta:hover {
  text-decoration: none;
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

.theme-toggle {
  appearance: none;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card-solid) 82%, transparent);
  color: inherit;
  border-radius: 999px;
  padding: 8px 10px;
  cursor: pointer;
  line-height: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

.toggle-icon {
  display: inline-flex;
}

.toggle-icon-sun {
  display: none;
}

html[data-theme="dark"] .toggle-icon-moon {
  display: none;
}

html[data-theme="dark"] .toggle-icon-sun {
  display: inline-flex;
}

html[data-theme="light"] .toggle-icon-sun {
  display: none;
}

/* Layout */
.container {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 56px 20px 76px;
  display: flex;
  align-items: center;
}

/* Hero */
.hero {
  width: 100%;
  padding: 34px 34px 26px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--card);
  box-shadow: var(--shadow);
  animation: enter 650ms ease-out both;
}

.kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--muted);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 3.1rem;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 12px;
}

.lead {
  margin: 0 0 18px;
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 78ch;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 22px;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card-solid) 88%, transparent);
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr 1.15fr;
  gap: 14px;
  margin: 0 0 22px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px 18px 16px;
  background: color-mix(in srgb, var(--card-solid) 86%, transparent);
}

.card h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 0 0 8px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.terminal {
  padding: 0;
  overflow: hidden;
  background: linear-gradient(180deg, color-mix(in srgb, var(--card-solid) 92%, transparent), color-mix(in srgb, var(--card-solid) 80%, transparent));
}

html[data-theme="dark"] .terminal {
  background: linear-gradient(180deg, rgba(6, 10, 16, 0.78), rgba(4, 6, 10, 0.62));
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--card-solid) 92%, transparent);
}

html[data-theme="dark"] .terminal-bar {
  background: rgba(5, 8, 13, 0.85);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

.dot-red { background: #ef4444; }
.dot-amber { background: #f59e0b; }
.dot-green { background: #22c55e; }

.terminal-title {
  margin-left: 6px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted);
}

.terminal pre {
  margin: 0;
  padding: 14px 16px 16px;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.5;
  white-space: pre-wrap;
  color: color-mix(in srgb, var(--text) 86%, transparent);
}

html[data-theme="dark"] .terminal pre {
  color: rgba(229, 231, 235, 0.88);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-weight: 600;
  background: transparent;
}

.btn:hover {
  text-decoration: none;
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

.btn.primary {
  border-color: color-mix(in srgb, var(--accent) 65%, var(--border));
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 25%, transparent), color-mix(in srgb, var(--accent-2) 18%, transparent));
}

.btn.primary:hover {
  border-color: color-mix(in srgb, var(--accent) 80%, var(--border));
}

.btn.ghost {
  background: color-mix(in srgb, var(--card-solid) 84%, transparent);
}

.social-icons {
  display: flex;
  gap: 10px;
}

.social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card-solid) 84%, transparent);
  opacity: 0.92;
}

.social-icons a:hover {
  opacity: 1;
  text-decoration: none;
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

/* Footer */
footer {
  padding: 32px 20px 44px;
  text-align: center;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

/* Motion */
@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .hero {
    animation: none;
  }
}

/* Responsive */
@media (max-width: 860px) {
  .container {
    padding-top: 36px;
  }
  .hero {
    padding: 26px 18px 18px;
  }
  .hero h1 {
    font-size: 2.35rem;
  }
  .cards {
    grid-template-columns: 1fr;
  }
}