:root {
  --navy: #0F172A;
  --navy-light: #1E293B;
  --cyan: #22D3EE;
  --cyan-dim: #0E7490;
  --white: #F8FAFC;
  --gray: #94A3B8;
  --gray-dark: #334155;
  --green: #22C55E;
  --yellow: #EAB308;
  --orange: #F97316;
  --red: #EF4444;
  --purple: #A855F7;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--navy);
  color: var(--white);
  min-height: 100vh;
}

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  border-bottom: 1px solid var(--gray-dark);
  padding: 16px 0;
}
header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
}
.logo span { color: var(--cyan); }
header nav a {
  color: var(--gray);
  margin-left: 20px;
  font-size: 0.9rem;
}
header nav a:hover { color: var(--cyan); }

/* Hero */
.hero {
  text-align: center;
  padding: 40px 0 24px;
}
.hero h1 {
  font-size: 2rem;
  margin-bottom: 10px;
}
.hero h1 span { color: var(--cyan); }
.hero p { color: var(--gray); font-size: 1.05rem; }

/* Search bar */
.search-card {
  background: var(--navy-light);
  border: 1px solid var(--gray-dark);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 24px;
}
.search-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.search-row input[type="text"] {
  flex: 1;
  min-width: 200px;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--gray-dark);
  background: var(--navy);
  color: var(--white);
  font-size: 0.95rem;
}
.search-row input::placeholder { color: var(--gray); }
.search-row select {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--gray-dark);
  background: var(--navy);
  color: var(--white);
  font-size: 0.9rem;
}
.btn {
  padding: 10px 22px;
  border: none;
  border-radius: 8px;
  background: var(--cyan);
  color: var(--navy);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { background: var(--cyan-dim); color: var(--white); }

/* Results summary */
.results-summary {
  color: var(--gray);
  font-size: 0.9rem;
  margin-bottom: 16px;
}
.results-summary strong { color: var(--white); }

/* CVE list */
.cve-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: 40px;
}

.cve-card {
  background: var(--navy-light);
  border: 1px solid var(--gray-dark);
  border-radius: 10px;
  padding: 18px 20px;
  transition: border-color 0.2s;
}
.cve-card:hover { border-color: var(--cyan-dim); }

.cve-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  flex-wrap: wrap;
  gap: 8px;
}
.cve-id {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-weight: 700;
  font-size: 1rem;
  color: var(--cyan);
  text-decoration: none;
}
.cve-id:hover { text-decoration: underline; }

.severity-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.severity-badge.critical { background: var(--purple); color: var(--white); }
.severity-badge.high { background: var(--red); color: var(--white); }
.severity-badge.medium { background: var(--orange); color: var(--navy); }
.severity-badge.low { background: var(--yellow); color: var(--navy); }
.severity-badge.none { background: var(--gray-dark); color: var(--gray); }

.cve-score {
  font-family: monospace;
  font-weight: 700;
  font-size: 0.9rem;
  margin-left: 8px;
}

.cve-desc {
  color: var(--gray);
  font-size: 0.88rem;
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cve-meta {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--gray);
  flex-wrap: wrap;
}
.cve-meta span { white-space: nowrap; }

/* Detail page */
.detail-card {
  background: var(--navy-light);
  border: 1px solid var(--gray-dark);
  border-radius: 12px;
  padding: 28px;
  margin-bottom: 30px;
}
.detail-card h2 {
  font-family: monospace;
  color: var(--cyan);
  font-size: 1.4rem;
  margin-bottom: 16px;
}
.detail-section {
  margin-bottom: 20px;
}
.detail-section h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray);
  margin-bottom: 8px;
}
.detail-section p {
  line-height: 1.6;
  font-size: 0.95rem;
}
.detail-score {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.score-big {
  font-size: 2rem;
  font-weight: 800;
  font-family: monospace;
}
.ref-list {
  list-style: none;
}
.ref-list li {
  padding: 6px 0;
  border-bottom: 1px solid rgba(51, 65, 85, 0.5);
  font-size: 0.88rem;
  word-break: break-all;
}
.ref-list li:last-child { border-bottom: none; }

.cwe-badge {
  display: inline-block;
  background: var(--navy);
  border: 1px solid var(--gray-dark);
  padding: 4px 10px;
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.85rem;
  margin-right: 6px;
  margin-bottom: 4px;
}

.back-link {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--gray);
  font-size: 0.9rem;
}
.back-link:hover { color: var(--cyan); }

.error-msg {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--red);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--red);
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--gray);
}

/* Footer */
footer {
  border-top: 1px solid var(--gray-dark);
  padding: 24px 0;
  text-align: center;
  color: var(--gray);
  font-size: 0.85rem;
}

/* Loading */
.htmx-indicator {
  display: none;
  color: var(--cyan);
  font-size: 0.9rem;
  padding: 10px 0;
}
.htmx-request .htmx-indicator { display: block; }
.htmx-request .btn { opacity: 0.6; pointer-events: none; }

@media (max-width: 600px) {
  .search-row { flex-direction: column; }
  .hero h1 { font-size: 1.5rem; }
  .cve-header { flex-direction: column; align-items: flex-start; }
  .detail-card { padding: 20px; }
}