/* Base */
:root {
  --bg: #0f172a;
  --card: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #3b82f6;
  --accent-2: #22c55e;
  --border: #1f2937;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: linear-gradient(180deg, #0b1220, var(--bg));
  color: var(--text);
}
img { max-width: 100%; display: block; }
.container { width: min(1100px, 92%); margin: 0 auto; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(15,23,42,.9); backdrop-filter: blur(6px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; }
.logo { display: inline-flex; gap: 10px; align-items: center; text-decoration: none; color: var(--text); font-weight: 700; letter-spacing: .3px; }
.logo-mark { background: linear-gradient(135deg, var(--accent), #60a5fa); color: #06122b; padding: 6px 10px; border-radius: 8px; font-size: 14px; }
.logo-text { font-size: 14px; text-transform: uppercase; color: #cbd5e1; }
.nav { display: flex; gap: 6px; }
.nav-link { color: #cbd5e1; text-decoration: none; padding: 8px 12px; border-radius: 8px; border: 1px solid transparent; }
.nav-link:hover { background: #0b1220; border-color: var(--border); }
.nav-link.active { background: #0b1220; border-color: var(--border); color: #fff; }

/* Hero */
.hero { padding: 56px 0; border-bottom: 1px solid var(--border); background: radial-gradient(1200px 400px at 50% -50px, rgba(59,130,246,.15), transparent),
 linear-gradient(180deg, rgba(34,197,94,.06), transparent 40%); }
.hero-inner { text-align: center; }
.hero h1 { margin: 0 0 10px; font-size: clamp(26px, 4vw, 40px); }
.hero p { margin: 0 auto; max-width: 740px; color: #d1d5db; font-size: 18px; }
.hero-cta { margin-top: 18px; display: inline-flex; gap: 10px; }

/* Sections */
.split { padding: 32px 0; }
.split-inner { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media(min-width: 900px){ .split-inner { grid-template-columns: 1fr 1fr; } }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; box-shadow: 0 10px 30px rgba(0,0,0,.2); }
.card h2, .card h3 { margin-top: 0; }

.tick-list { list-style: none; padding: 0; margin: 0; }
.tick-list li { padding: 8px 0 8px 28px; position: relative; border-bottom: 1px dashed #1f2a44; }
.tick-list li:last-child { border-bottom: 0; }
.tick-list li::before { content: "✔"; position: absolute; left: 2px; color: var(--accent-2); }

.about { padding: 24px 0; }
.info { padding: 8px 0 32px; }
.info-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media(min-width: 800px){ .info-grid { grid-template-columns: repeat(3, 1fr); } }

.cta { padding: 28px 0 40px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.cta-inner { text-align: center; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 14px; border-radius: 10px; text-decoration: none; border: 1px solid var(--border); color: #e5e7eb; background: #0b1220; cursor: pointer; }
.btn.primary { background: linear-gradient(135deg, var(--accent), #60a5fa); border-color: #2f68c6; color: #08142d; font-weight: 700; }
.btn:hover { filter: brightness(1.05); }

/* Footer */
.site-footer { padding: 20px 0; border-top: 1px solid var(--border); }
.footer-inner { display: flex; gap: 10px; align-items: center; justify-content: space-between; }
.footer-nav a { color: #cbd5e1; text-decoration: none; margin-right: 10px; }
.footer-nav a:last-child { margin-right: 0; }

/* Uploader */
.uploader { margin-top: 12px; border: 2px dashed #24324d; border-radius: 14px; padding: 26px; text-align: center; background: rgba(3,8,23,.6); position: relative; }
.uploader.dragover { background: rgba(59,130,246,.1); border-color: var(--accent); }
.uploader input[type="file"] { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.uploader-instructions p { margin: 6px 0; }
.muted { color: var(--muted); }

.uploader-actions { margin-top: 10px; display: flex; align-items: center; gap: 10px; }
.uploader-actions .spacer { flex: 1; }
.checkbox { display: inline-flex; gap: 8px; align-items: center; color: #cbd5e1; }
.status { margin-top: 8px; color: #cbd5e1; font-size: 14px; }

.gallery-grid { margin-top: 16px; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.tile { background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; display: flex; flex-direction: column; }
.tile img { aspect-ratio: 4/3; object-fit: cover; background: #0b1220; }
.tile .meta { display: flex; align-items: center; justify-content: space-between; padding: 10px; gap: 8px; }
.meta .name { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; color: #cbd5e1; font-size: 14px; }
.meta .btn { padding: 6px 10px; font-size: 13px; }

/* Accessibility focus */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }