/* AISplinter shared styles */
:root {
  --text: #e8f4ff;
  --muted: #8ba3bc;
  --accent: #6ee7ff;
  --accent-dim: #3db8d4;
  --violet: #a78bfa;
  --glass: rgba(8, 16, 28, 0.55);
  --glass-solid: rgba(8, 16, 28, 0.85);
  --border: rgba(110, 231, 255, 0.12);
  --border-hover: rgba(110, 231, 255, 0.28);
  --bg: #030508;
  --surface: rgba(14, 28, 48, 0.6);
}

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

html,
body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Instrument Sans', system-ui, sans-serif;
  overflow-x: hidden;
  line-height: 1.6;
}

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

/* Nav */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: rgba(3, 5, 8, 0.6);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.site-nav .logo {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.site-nav .logo-mark {
  width: 1.5rem;
  height: 1.5rem;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
  display: inline-block;
}

.site-nav .nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.site-nav .nav-links a {
  color: var(--muted);
  transition: color 0.2s;
}
.site-nav .nav-links a:hover,
.site-nav .nav-links a[aria-current="page"] {
  color: var(--text);
  text-decoration: none;
}

@media (max-width: 520px) {
  .site-nav .nav-links {
    gap: 1rem;
    font-size: 0.8rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--border);
  background: var(--glass);
  backdrop-filter: blur(12px);
  color: var(--text);
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
  cursor: pointer;
}
.btn:hover {
  border-color: rgba(110, 231, 255, 0.35);
  background: rgba(14, 28, 48, 0.75);
  transform: translateY(-1px);
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, rgba(61, 184, 212, 0.35), rgba(167, 139, 250, 0.25));
  border-color: rgba(110, 231, 255, 0.3);
}

/* Sections */
.section {
  padding: 5rem 1.5rem;
  max-width: 60rem;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header .eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-dim);
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-size: clamp(1.6rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  background: linear-gradient(135deg, #fff 0%, var(--accent) 55%, var(--violet) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-header p {
  margin-top: 0.75rem;
  color: var(--muted);
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Cards */
.card-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.card {
  padding: 1.5rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  background: var(--glass);
  backdrop-filter: blur(10px);
  transition: border-color 0.2s, transform 0.15s;
}
.card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.card p {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.55;
}

.card .icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.5rem;
  background: linear-gradient(135deg, rgba(61, 184, 212, 0.2), rgba(167, 139, 250, 0.15));
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

/* Screenshots */
.screenshot-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
}

.screenshot {
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
  transition: border-color 0.2s;
}
.screenshot:hover {
  border-color: var(--border-hover);
}

.screenshot .ss-frame {
  aspect-ratio: 16/10;
  background: linear-gradient(145deg, #0a1420 0%, #0d1e30 60%, #081220 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.screenshot .ss-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(110, 231, 255, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(167, 139, 250, 0.06) 0%, transparent 50%);
}

.screenshot .ss-placeholder {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--muted);
  z-index: 1;
  text-align: center;
  padding: 1rem;
}

.screenshot .ss-caption {
  padding: 0.85rem 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

/* Code blocks */
.code-block {
  background: #070d14;
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  color: #b8d4e8;
  margin: 0.75rem 0;
}
.code-block .comment {
  color: #5a7a94;
}
.code-block .key {
  color: #6ee7ff;
}
.code-block .str {
  color: #a5d6a7;
}

/* Install tabs */
.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}
.tab-btn.active {
  background: var(--glass);
  color: var(--text);
  border-color: var(--border-hover);
}
.tab-btn:hover {
  border-color: var(--border-hover);
}

.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
}

/* Contact form */
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-dim);
}
.form-group textarea {
  min-height: 8rem;
  resize: vertical;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}
.site-footer a {
  color: var(--muted);
}
.site-footer a:hover {
  color: var(--text);
}
.site-footer .footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
  list-style: none;
  flex-wrap: wrap;
}

/* Page header (non-home) */
.page-header {
  padding: 7rem 1.5rem 4rem;
  text-align: center;
  max-width: 48rem;
  margin: 0 auto;
  position: relative;
}
.page-header h1 {
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  background: linear-gradient(135deg, #fff 0%, var(--accent) 45%, var(--violet) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-header p {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 34rem;
  margin-left: auto;
  margin-right: auto;
}

/* Feature list */
.feature-list {
  list-style: none;
  padding: 0;
}
.feature-list li {
  padding: 0.6rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--muted);
  font-size: 0.95rem;
}
.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1rem;
  width: 0.5rem;
  height: 0.5rem;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
}