/* ── research-agent — Dark Futuristic Design ── */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800&family=DM+Mono:wght@400;500&display=swap');

:root {
  --bg: #07070e;
  --bg-card: #0f0f1a;
  --bg-card-hover: #161625;
  --bg-code: #0a0a14;
  --border: #1a1a2e;
  --border-accent: #2a2a4e;
  --text: #e8e8f0;
  --text-dim: #7a7a9a;
  --accent: #00e5a0;
  --accent-glow: rgba(0, 229, 160, 0.15);
  --accent-secondary: #7c5cff;
  --accent-secondary-glow: rgba(124, 92, 255, 0.12);
  --gradient: linear-gradient(135deg, #00e5a0 0%, #7c5cff 100%);
  --font-sans: "Sora", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "DM Mono", "SF Mono", "Cascadia Code", "Fira Code", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.8; text-decoration: none; }

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Background Grid ── */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background-image:
    linear-gradient(rgba(0, 229, 160, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 160, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 7, 14, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
nav .container {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}
nav .logo {
  font-weight: 800;
  font-size: 1.05em;
  letter-spacing: -0.02em;
  color: var(--text);
}
nav .logo .accent { color: var(--accent); }
nav a { color: var(--text-dim); font-size: 0.85em; font-weight: 500; letter-spacing: 0.02em; text-transform: uppercase; }
nav a:hover { color: var(--text); }
nav .spacer { flex: 1; }

/* ── Hero ── */
.hero {
  text-align: center;
  padding: 100px 0 60px;
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size: clamp(2.2em, 6vw, 3.8em);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
  animation: fadeUp 0.8s ease-out;
}
.hero h1 .accent { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p {
  color: var(--text-dim);
  font-size: clamp(0.95em, 2.5vw, 1.2em);
  max-width: 540px;
  margin: 0 auto 36px;
  line-height: 1.6;
  animation: fadeUp 0.8s ease-out 0.15s both;
}

/* ── Install Box ── */
.install-box {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: 10px;
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: clamp(0.75em, 2vw, 0.85em);
  margin-bottom: 36px;
  animation: fadeUp 0.8s ease-out 0.3s both;
}
.install-box .prompt { color: var(--accent); font-weight: 500; }
.install-box .cmd { color: var(--text); }
.install-box .copy-btn {
  background: var(--accent);
  color: #07070e;
  border: none;
  border-radius: 5px;
  padding: 4px 12px;
  font-size: 0.75em;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}
.install-box .copy-btn:hover { opacity: 0.85; }

/* ── Quick Links ── */
.quick-links {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
  animation: fadeUp 0.8s ease-out 0.45s both;
}
.quick-links a {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 0.82em;
  font-weight: 600;
  color: var(--text-dim);
  transition: all 0.2s;
}
.quick-links a:hover {
  border-color: var(--accent);
  color: var(--text);
  background: var(--bg-card-hover);
}

/* ── Features ── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 60px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.25s;
}
.feature-card:hover::before { opacity: 1; }
.feature-card h3 { font-size: 0.95em; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.feature-card p { color: var(--text-dim); font-size: 0.82em; line-height: 1.6; }
.feature-card code {
  font-family: var(--font-mono);
  font-size: 0.8em;
  background: var(--bg-code);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--accent);
}

/* ── Sections ── */
section { margin-bottom: 60px; position: relative; z-index: 1; }
section h2 {
  font-size: 1.3em;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.01em;
}

/* ── Code ── */
pre, code { font-family: var(--font-mono); }
code {
  background: var(--bg-code);
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.8em;
  border: 1px solid var(--border);
}
pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
  overflow-x: auto;
  margin: 16px 0;
  line-height: 1.55;
  font-size: 0.82em;
}
pre code {
  background: none;
  padding: 0;
  border: none;
}

/* ── Tables ── */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.88em;
}
th, td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
th { color: var(--text-dim); font-weight: 600; font-size: 0.78em; text-transform: uppercase; letter-spacing: 0.05em; }
td { color: var(--text-dim); }
td code, th code { font-size: 0.85em; }

/* ── Content Pages ── */
.content { position: relative; z-index: 1; padding-top: 40px; }
.content h1 {
  font-size: clamp(1.8em, 4vw, 2.5em);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.content h1 + .subtitle { color: var(--text-dim); margin-bottom: 40px; font-size: 0.95em; }
.content h2 {
  font-size: 1.3em;
  font-weight: 700;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.content h3 {
  font-size: 1em;
  font-weight: 700;
  margin-top: 28px;
  margin-bottom: 10px;
  color: var(--accent);
}
.content h4 {
  font-size: 0.9em;
  font-weight: 700;
  margin-top: 20px;
  margin-bottom: 8px;
  color: var(--accent-secondary);
}
.content ul, .content ol { padding-left: 22px; margin: 12px 0; }
.content li { margin-bottom: 6px; color: var(--text-dim); font-size: 0.92em; line-height: 1.6; }
.content p { color: var(--text-dim); font-size: 0.92em; line-height: 1.7; margin-bottom: 12px; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8em;
  position: relative;
  z-index: 1;
}

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Tag badge ── */
.tag {
  display: inline-block;
  background: var(--accent-glow);
  color: var(--accent);
  font-size: 0.65em;
  padding: 2px 9px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid rgba(0, 229, 160, 0.2);
}

/* ── Mobile ── */
@media (max-width: 640px) {
  .hero { padding: 60px 0 40px; }
  .quick-links a { width: 100%; text-align: center; }
  .features { grid-template-columns: 1fr; }
  .install-box { flex-wrap: wrap; justify-content: center; padding: 12px 14px; }
  nav .container { gap: 12px; }
  nav .logo { font-size: 0.9em; }
  table { font-size: 0.78em; }
  th, td { padding: 8px 10px; }
  pre { font-size: 0.75em; padding: 14px; }
}

 @media (max-width: 400px) {
  .container { padding: 0 14px; }
  .feature-card { padding: 18px; }
  .features { gap: 12px; }
}