:root { color-scheme: dark; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #f8fafc; background: #0b1220; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at 20% 0%, #273a64 0, transparent 38%), #0b1220; }
.page { width: min(100% - 28px, 900px); margin: 0 auto; padding: 22px 0 48px; }
.centered { display: grid; place-items: center; padding: 20px; }
.card { background: rgba(20, 31, 52, .92); border: 1px solid #304362; border-radius: 20px; box-shadow: 0 16px 40px rgba(0,0,0,.2); }
.login-card { width: min(100%, 440px); padding: 30px 24px; }
.topbar { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; margin-bottom: 24px; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.main-nav { display: flex; gap: 6px; overflow-x: auto; margin: 0 0 24px; padding-bottom: 3px; scrollbar-width: none; }
.main-nav a { flex: 0 0 auto; padding: 9px 11px; border: 1px solid #304362; border-radius: 999px; color: #b9c9df; text-decoration: none; font-size: .86rem; }
.main-nav a.active, .main-nav a:hover { color: #07111f; background: #8fb8ff; border-color: #8fb8ff; }
.page-heading { margin: 10px 0 22px; }
.admin-badge { padding: 5px 8px; border: 1px solid #8fb8ff; border-radius: 999px; color: #cfe0ff; font-size: .75rem; font-weight: 800; }
h1, h2, p { margin-top: 0; } h1 { margin-bottom: 6px; font-size: clamp(1.8rem, 8vw, 2.7rem); line-height: 1.08; } h2 { margin-bottom: 8px; }
.eyebrow { color: #8fb8ff; font-size: .75rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.muted, .section-heading span { color: #a9b7cc; line-height: 1.5; }
.upload-card { padding: 22px; margin-bottom: 30px; }
.dashboard-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 0 0 16px; }
.stat-card { display: flex; flex-direction: column; gap: 4px; min-width: 0; padding: 13px 10px; border: 1px solid #304362; border-radius: 14px; background: rgba(20, 31, 52, .78); text-align: center; }
.stat-card strong { overflow: hidden; color: #dce9ff; text-overflow: ellipsis; white-space: nowrap; }
.stat-card span { color: #91a4c0; font-size: .78rem; }
.next-quest { margin: 0 0 24px; padding: 20px; }
.button-link { display: inline-block; margin-top: 13px; padding: 11px 14px; border-radius: 10px; color: #07111f; background: #8fb8ff; font-weight: 800; text-decoration: none; }
label { display: block; margin: 16px 0 7px; font-weight: 700; }
input[type=text] { width: 100%; padding: 13px 14px; border: 1px solid #506789; border-radius: 11px; color: #fff; background: #0d1729; font-size: 1rem; }
input[type=file] { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
button { width: 100%; margin-top: 16px; padding: 13px 16px; border: 0; border-radius: 11px; color: #07111f; background: #8fb8ff; font: inherit; font-weight: 800; cursor: pointer; }
button:active { transform: translateY(1px); }
.file-picker { display: flex; flex-direction: column; align-items: center; gap: 5px; margin: 18px 0 0; padding: 24px 14px; border: 1px dashed #6c8dbb; border-radius: 14px; color: #dce9ff; text-align: center; cursor: pointer; }
.file-picker small { color: #99a9c0; font-weight: 400; }
.link-button { width: auto; margin: 0; padding: 7px 0; color: #b7c8e5; background: transparent; font-size: .9rem; font-weight: 600; }
.section-heading { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 12px; }
.filter-tabs { display: flex; gap: 7px; overflow-x: auto; margin-bottom: 12px; padding-bottom: 3px; }
.filter-tabs a { flex: 0 0 auto; padding: 7px 10px; border: 1px solid #304362; border-radius: 999px; color: #a9b7cc; font-size: .8rem; text-decoration: none; }
.filter-tabs a.selected { color: #07111f; background: #8fb8ff; border-color: #8fb8ff; }
.gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; }
.gallery-item { min-width: 0; }
.gallery a { display: block; overflow: hidden; aspect-ratio: 1; border-radius: 10px; background: #17243b; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .2s; } .gallery img:hover { transform: scale(1.04); }
.photo-meta { min-height: 30px; padding: 5px 2px 0; color: #a9b7cc; font-size: .72rem; line-height: 1.35; }
.delete-button { margin-top: 5px; padding: 7px 9px; color: #fecaca; background: #4c1d28; font-size: .8rem; }
.empty { padding: 28px 20px; text-align: center; } .empty p { margin: 0; color: #a9b7cc; }
.error, .success { margin: 14px 0; padding: 11px 13px; border-radius: 10px; line-height: 1.45; } .error { color: #fecaca; background: #4c1d28; } .success { color: #bbf7d0; background: #143d31; }
.quest-list { display: grid; gap: 14px; }
.quest-card { padding: 19px; }
.quest-card.completed { border-color: #3d705f; opacity: .88; }
.quest-top, .quest-meta { display: flex; justify-content: space-between; align-items: center; gap: 9px; }
.quest-top { margin-bottom: 10px; }
.tag, .done { padding: 4px 8px; border-radius: 999px; font-size: .72rem; font-weight: 800; }
.tag { color: #cfe0ff; background: #263a5d; } .done { color: #bbf7d0; background: #174634; }
.quest-card h2 { margin-bottom: 7px; } .quest-meta { margin: 15px 0; color: #b9c9df; font-size: .88rem; } .quest-meta strong { color: #dce9ff; }
details summary { display: inline-block; padding: 11px 13px; border-radius: 10px; color: #07111f; background: #8fb8ff; cursor: pointer; font-weight: 800; list-style: none; }
.quest-form { margin-top: 13px; } textarea { width: 100%; min-height: 75px; padding: 11px; border: 1px solid #506789; border-radius: 10px; color: #fff; background: #0d1729; font: inherit; resize: vertical; }
.file-picker.compact { margin-top: 11px; padding: 16px 10px; } .completed-note { margin: 4px 0 0; color: #86d6b4; }
.leaderboard { overflow: hidden; } .leader-row { display: grid; grid-template-columns: 35px minmax(0, 1fr) auto auto; gap: 9px; align-items: center; padding: 15px 17px; border-bottom: 1px solid #304362; } .leader-row:last-child { border-bottom: 0; } .leader-row.winner { background: rgba(143,184,255,.12); } .rank { color: #8fb8ff; font-weight: 900; } .leader-detail { color: #91a4c0; font-size: .78rem; } .leader-row b { color: #dce9ff; white-space: nowrap; }
.bingo-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; } .bingo-grid form { min-width: 0; } .bingo-cell { display: flex; flex-direction: column; justify-content: center; gap: 5px; width: 100%; min-height: 92px; margin: 0; padding: 7px 4px; border: 1px solid #304362; border-radius: 10px; color: #dce9ff; background: rgba(20,31,52,.92); font-size: .69rem; line-height: 1.15; } .bingo-cell span { color: #8fa9cf; font-size: 1.15rem; } .bingo-cell.marked { color: #07111f; background: #8fb8ff; border-color: #b9d2ff; } .bingo-cell.marked span { color: #07111f; } .bingo-banner { margin-bottom: 14px; padding: 15px; border: 1px solid #d6a84f; border-radius: 13px; color: #ffe8a3; background: #4d3a16; text-align: center; font-weight: 900; }
.back-link a { color: #8fb8ff; }
@media (min-width: 600px) { .gallery { grid-template-columns: repeat(3, 1fr); } .login-card { padding: 38px 34px; } }
@media (max-width: 430px) { .bingo-cell { min-height: 76px; font-size: .62rem; } .leader-row { grid-template-columns: 28px minmax(0, 1fr) auto; } .leader-detail { display: none; } }