/* ---------- Theme tokens ---------- */

:root {
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --radius: 12px;
  --container: 1120px;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0e14;
  --bg-alt: #10141d;
  --bg-card: #141926;
  --bg-code: #0d1119;
  --border: #232a3a;
  --text: #e6e9f0;
  --text-muted: #9aa3b5;
  --header-bg: rgba(11, 14, 20, 0.85);
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  --hero-glow: radial-gradient(ellipse 70% 50% at 50% -10%, rgba(59, 130, 246, 0.18), transparent);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --bg-card: #ffffff;
  --bg-code: #f0f3f8;
  --border: #dde3ee;
  --text: #1a2233;
  --text-muted: #5a6579;
  --header-bg: rgba(255, 255, 255, 0.85);
  --shadow: 0 10px 40px rgba(30, 50, 100, 0.12);
  --hero-glow: radial-gradient(ellipse 70% 50% at 50% -10%, rgba(59, 130, 246, 0.1), transparent);
}

/* ---------- Base ---------- */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.25s ease, color 0.25s ease;
}

img { max-width: 100%; display: block; }

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

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.1em 0.4em;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; text-wrap: balance; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); font-weight: 800; text-align: center; }

/* Avoid single dangling words at the end of paragraphs */
p, figcaption, li { text-wrap: pretty; }

.accent { color: var(--accent); }

.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }

.section-sub {
  max-width: 720px;
  margin: 0 auto 40px;
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  text-wrap: balance;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
}
.brand:hover { text-decoration: none; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-links > a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
}
.nav-links > a:hover { color: var(--text); text-decoration: none; }

.nav-github {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.15s ease;
}
.theme-toggle:hover { border-color: var(--accent); }

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

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 90px 0 0;
  background: var(--hero-glow);
  text-align: center;
  overflow: hidden;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
}
.badge-license { color: var(--accent); border-color: var(--accent); }

.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  max-width: 800px;
  margin: 0 auto 20px;
}

.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 32px;
  text-wrap: balance;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.hero-note {
  margin-top: 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.hero-shot {
  margin-top: 56px;
  padding: 0 12px;
}

.hero-shot img {
  margin: 0 auto;
  max-width: 980px;
  width: 100%;
  border-radius: var(--radius) var(--radius) 0 0;
  border: 1px solid var(--border);
  border-bottom: none;
  box-shadow: var(--shadow);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 26px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

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

.btn-secondary {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text);
}
.btn-secondary:hover { border-color: var(--accent); }

/* ---------- Strip ---------- */

.strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}

.strip-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 40px;
  padding: 20px 24px;
}

.strip-item {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  color: var(--text-muted);
}

/* ---------- Why / feature cards ---------- */

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.why-card, .feature-card, .db-card, .dl-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.why-card:hover, .feature-card:hover, .db-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.why-card h3, .feature-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.why-card p, .feature-card p { margin: 0; color: var(--text-muted); font-size: 0.94rem; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

/* ---------- Databases ---------- */

.db-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.db-name { font-weight: 700; font-size: 1.15rem; margin-bottom: 12px; }

.db-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text-muted);
  font-size: 0.94rem;
}
.db-card li { margin-bottom: 6px; }

/* ---------- Gallery ---------- */

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.gallery figure { margin: 0; }

.gallery img {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  cursor: zoom-in;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.gallery img:hover { transform: scale(1.02); border-color: var(--accent); }

.gallery figcaption {
  margin-top: 8px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ---------- Download ---------- */

.dl-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.dl-card { display: flex; flex-direction: column; gap: 12px; }

.dl-card.dl-detected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }

.dl-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
}
.dl-head h3 { margin: 0; font-size: 1.2rem; }
.dl-head svg { color: var(--accent); flex-shrink: 0; }

.dl-main { width: 100%; }

/* Negative margins let the dividers span the card's full width */
.dl-other {
  margin: 6px -24px -14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.dl-other-title {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 8px;
  padding: 0 24px;
}

.dl-other ul { margin: 0; padding: 0; list-style: none; }

.dl-other li + li { border-top: 1px solid var(--border); }

.dl-other a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 24px;
  font-size: 0.92rem;
  color: var(--text);
}
.dl-other a:hover { color: var(--accent); background: var(--bg-alt); text-decoration: none; }

.dl-other a span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.dl-other a:hover span { color: var(--accent); }

.dl-all {
  margin-top: 32px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  text-wrap: balance;
}

/* ---------- Portable ---------- */

.portable {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.portable h2 { text-align: left; }
.portable-text p { color: var(--text-muted); }

.code-block {
  margin: 0;
  padding: 24px;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.7;
  overflow-x: auto;
}
.code-block code { background: none; border: none; padding: 0; }

@media (max-width: 800px) {
  .portable { grid-template-columns: 1fr; gap: 28px; }
  .portable h2 { text-align: center; }
}

/* ---------- Tech stack ---------- */

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}

.stack-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 18px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  text-align: center;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.stack-item:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; }
.stack-item strong { font-size: 0.98rem; }
.stack-item span { font-size: 0.8rem; color: var(--text-muted); }

/* ---------- Final CTA ---------- */

.cta-final { text-align: center; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.footer-links { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-links a { color: var(--text-muted); font-size: 0.92rem; }
.footer-links a:hover { color: var(--accent); }

/* ---------- Lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 40px;
  background: rgba(5, 8, 14, 0.92);
  cursor: zoom-out;
}

.lightbox[hidden] { display: none; }

.lightbox img {
  max-width: 95vw;
  max-height: 85vh;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.lightbox-caption { color: #cbd3e1; margin: 0; font-size: 0.95rem; }

.lightbox-close {
  position: absolute;
  top: 18px;
  right: 26px;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.4rem;
  line-height: 1;
  cursor: pointer;
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .nav-links { gap: 14px; }
  .nav-links > a:not(.nav-github) { display: none; }
  .nav-github span { display: none; }
  .section { padding: 56px 0; }
  .hero { padding-top: 56px; }
}