/* ── Reset & base ────────────────────────────────────── */
:root {
  --surface: rgba(6, 16, 32, 0.78);
  --surface-hover: rgba(10, 24, 48, 0.88);
  --border: rgba(180, 210, 255, 0.12);
  --text: #e8eef8;
  --text-soft: rgba(220, 232, 255, 0.48);
  --accent: #1d8ecf;
  --up: #22c55e;
  --down: #ef4444;
  --overlay-bg: rgba(3, 8, 18, 0.88);
  --overlay-surface: rgba(8, 18, 38, 0.96);
  --radius: 10px;
  --gap: 14px;
  --header-h: 120px;
}

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

body {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: #06101e;
  min-height: 100vh;
}

/* ── Full-page background ────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background: #06101e center / cover no-repeat;
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background: rgba(4, 10, 22, 0.62);
}

/* ── Header ─────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 24px;
  background:
    url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence baseFrequency='.65' numOctaves='3' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)' opacity='.055'/></svg>"),
    linear-gradient(
      to right,
      #030304 0%,
      #070e18 18%,
      #0c2038 36%,
      #145a88 54%,
      #2898cc 72%,
      #4bbce8 86%,
      #6dd4f4 100%
    );
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

/* ── Nav links (image + label) ───────────────────────── */
.nav-left  { justify-self: start; }
.nav-right { justify-self: end; }

.nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  transition: transform 0.15s, opacity 0.15s;
}
.nav-link:hover { transform: scale(1.06); opacity: 0.9; }

.nav-shark-img {
  display: block;
  height: 64px;
  width: auto;
  object-fit: cover;
}

/* Scary nav: landscape crop, dark rounded frame */
.nav-scary .nav-shark-img {
  height: 77px;
  width: 110px;
  border-radius: 8px;
  border: 1px solid rgba(220, 60, 40, 0.35);
  object-position: center top;
  box-shadow: 0 2px 16px rgba(0,0,0,0.65);
}

/* Silly nav: circular frame — transparent PNG fills circle */
.nav-silly .nav-shark-img {
  height: 80px;
  width: 80px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.7);
  background: transparent;
  object-fit: cover;
  object-position: center center;
  box-shadow: 0 2px 14px rgba(0,0,0,0.25);
}

.nav-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}
.nav-link:hover .nav-label { color: rgba(255,255,255,0.85); }
.nav-link.active .nav-label { color: #fff; }

/* ── Center logo ─────────────────────────────────────── */
.site-logo-link {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}
.site-logo-img {
  height: 89px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: opacity 0.15s;
}
.site-logo-link:hover .site-logo-img { opacity: 0.82; }

/* ── Add button ─────────────────────────────────────── */
.add-bar {
  padding: 16px 24px 0;
  display: flex;
  justify-content: flex-end;
}
.btn-add {
  background: rgba(15, 35, 65, 0.92);
  border: 1px solid rgba(100, 165, 220, 0.55);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 22px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
.btn-add:hover {
  background: rgba(29, 142, 207, 0.3);
  border-color: var(--accent);
  box-shadow: 0 2px 12px rgba(29, 142, 207, 0.25);
}

/* ── Masonry ─────────────────────────────────────────── */
.masonry {
  columns: 3 280px;
  column-gap: var(--gap);
  padding: var(--gap) 24px 80px;
}

/* ── Cards ───────────────────────────────────────────── */
.card {
  break-inside: avoid;
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: var(--gap);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
}

/* ── Video embed ─────────────────────────────────────── */
.embed-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  background: #020508;
  cursor: pointer;
}
/* YouTube Shorts / vertical videos */
.embed-wrap.embed-vertical {
  padding-top: 177.78%; /* 9:16 */
}
.embed-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}
.embed-thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
}
.play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  transition: background 0.15s;
  z-index: 2;
}
.play-overlay:hover { background: rgba(0,0,0,0.15); }
.play-btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 2px solid rgba(255,255,255,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
}
.play-btn svg {
  width: 26px;
  height: 26px;
  fill: #fff;
  margin-left: 3px;
}
.embed-wrap.playing .play-overlay { display: none; }

/* ── Image card ──────────────────────────────────────── */
.card-img img {
  display: block;
  width: 100%;
  height: auto;
}

/* ── Fact card ───────────────────────────────────────── */
.card-fact .fact-body {
  padding: 22px 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

/* ── Card footer ─────────────────────────────────────── */
.card-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-top: 1px solid var(--border);
}
.submitter {
  font-size: 12px;
  color: var(--text-soft);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.votes {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}
.vote-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-soft);
  padding: 3px 5px;
  border-radius: 4px;
  transition: color 0.12s, background 0.12s;
  line-height: 1;
}
.vote-btn:hover { background: var(--surface-hover); color: var(--text); }
.vote-btn.active-up   { color: var(--up); }
.vote-btn.active-down { color: var(--down); }
.vote-count {
  font-size: 13px;
  font-weight: 700;
  min-width: 22px;
  text-align: center;
  color: var(--text);
}
.vote-count.positive { color: var(--up); }
.vote-count.negative { color: var(--down); }
.delete-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-soft);
  padding: 4px 6px;
  border-radius: 4px;
  opacity: 0.45;
  display: flex;
  align-items: center;
  transition: opacity 0.15s, color 0.15s;
  flex-shrink: 0;
}
.delete-btn:hover { opacity: 1; color: var(--down); }

/* ── States ──────────────────────────────────────────── */
.empty-state,
.loading-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-soft);
  font-size: 15px;
}

/* ── Submission overlay ──────────────────────────────── */
.overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s;
  backdrop-filter: blur(6px);
}
.overlay.open { opacity: 1; pointer-events: all; }

.overlay-box {
  background: var(--overlay-surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 30px 26px;
  width: 100%;
  max-width: 460px;
  transform: translateY(10px);
  transition: transform 0.18s;
}
.overlay.open .overlay-box { transform: translateY(0); }

.overlay-title {
  font-family: Georgia, serif;
  font-size: 20px;
  font-weight: bold;
  color: var(--text);
  margin-bottom: 5px;
}
.overlay-sub {
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 22px;
  line-height: 1.5;
}

/* ── Type tabs ───────────────────────────────────────── */
.type-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}
.type-tab {
  flex: 1;
  padding: 8px 4px;
  border: 1px solid var(--border);
  background: none;
  border-radius: 7px;
  color: var(--text-soft);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.12s, color 0.12s, background 0.12s;
  text-align: center;
}
.type-tab:hover { border-color: var(--accent); color: var(--text); }
.type-tab.active {
  border-color: var(--accent);
  background: rgba(29, 142, 207, 0.15);
  color: var(--text);
}

/* ── Form ────────────────────────────────────────────── */
.form-group { margin-bottom: 14px; }
.form-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-soft);
  margin-bottom: 6px;
}
.form-input,
.form-textarea {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  padding: 10px 12px;
  transition: border-color 0.12s;
  outline: none;
}
.form-input:focus,
.form-textarea:focus { border-color: var(--accent); }
.form-textarea { resize: vertical; min-height: 96px; line-height: 1.6; }
.form-hint { font-size: 12px; color: var(--text-soft); margin-top: 4px; }
.form-error { font-size: 13px; color: var(--down); min-height: 18px; margin-top: 10px; }

.form-actions { display: flex; gap: 10px; margin-top: 20px; }
.btn-submit {
  flex: 1;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 7px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 11px;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-submit:hover { opacity: 0.86; }
.btn-submit:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-cancel {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-soft);
  border-radius: 7px;
  font-family: inherit;
  font-size: 14px;
  padding: 11px 18px;
  cursor: pointer;
  transition: border-color 0.12s, color 0.12s;
}
.btn-cancel:hover { border-color: var(--text-soft); color: var(--text); }

/* ── Admin overlay ───────────────────────────────────── */
.admin-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(6px);
}
.admin-box {
  background: var(--overlay-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 26px 22px;
  width: 100%;
  max-width: 320px;
}
.admin-box h3 { font-size: 16px; color: var(--text); margin-bottom: 14px; }

/* ── Admin toggle ────────────────────────────────────── */
.admin-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 150;
  background: rgba(12, 24, 46, 0.92);
  border: 1px solid rgba(100, 165, 220, 0.5);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 17px;
  color: rgba(200, 220, 255, 0.7);
  transition: color 0.15s, border-color 0.15s, background 0.15s, box-shadow 0.15s;
  box-shadow: 0 2px 10px rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
}
.admin-toggle:hover {
  border-color: var(--accent);
  color: var(--text);
  box-shadow: 0 2px 14px rgba(29, 142, 207, 0.3);
}
.admin-toggle.admin-on {
  border-color: var(--down);
  color: var(--down);
  background: rgba(50, 10, 10, 0.92);
  box-shadow: 0 2px 14px rgba(239, 68, 68, 0.3);
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 640px) {
  :root { --header-h: 88px; }
  .site-header { padding: 0 12px; }
  .nav-scary .nav-shark-img { width: 72px; height: 52px; }
  .nav-silly .nav-shark-img { height: 56px; width: 56px; }
  .site-logo-img { height: 60px; }
  .masonry { padding: var(--gap) 12px 80px; }
  .add-bar { padding: 12px 12px 0; }
}