:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1f232c;
  --border: #2a2f3a;
  --text: #e6e8ec;
  --muted: #8b909c;
  --accent: #4f8cff;
  --accent-2: #ff5c8a;
  --ok: #38c172;
  --danger: #e0455f;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--accent); text-decoration: none; overflow-wrap: anywhere; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.topbar h1 {
  font-size: 16px;
  margin: 0;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}

.topbar .actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 9px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  touch-action: manipulation;
}

.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.btn-primary:hover { filter: brightness(1.08); }

.btn-danger { border-color: var(--danger); color: var(--danger); background: transparent; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }

input[type="text"],
input[type="password"],
input[type="file"] {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  /* 16px minimum -- iOS Safari auto-zooms the page on focus for any input
     font-size below that, which is jarring on a phone. */
  font-size: 16px;
}

input:focus { outline: none; border-color: var(--accent); }

.gallery-list { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }

.gallery-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.gallery-row .meta { color: var(--muted); font-size: 13px; margin-top: 4px; overflow-wrap: anywhere; }
.gallery-row .name { font-size: 15px; font-weight: 600; overflow-wrap: anywhere; }

.pill {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
  margin-right: 6px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.thumb-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--panel-2);
  aspect-ratio: 1 / 1;
  cursor: zoom-in;
  transition: border-color 0.15s ease;
}

.thumb-card:hover {
  border-color: var(--accent);
}

.thumb-card.selected {
  border-color: var(--ok);
  box-shadow: 0 0 0 2px var(--ok);
}

.thumb-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.15s ease;
}

.thumb-card:hover img {
  transform: scale(1.04);
}

.thumb-card .select-badge,
.thumb-card .like-badge {
  position: absolute;
  top: 8px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  touch-action: manipulation;
  background: rgba(15, 17, 21, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  font-weight: 600;
  line-height: 1;
  color: var(--text);
  border: 1px solid var(--border);
  cursor: pointer;
  z-index: 2;
  transition: transform 0.1s ease, color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.thumb-card .select-badge { left: 8px; }
.thumb-card .like-badge { right: 8px; font-size: 20px; }

.thumb-card .select-badge:hover { border-color: var(--ok); transform: scale(1.12); }
.thumb-card .like-badge:hover { border-color: var(--accent-2); transform: scale(1.12); }

.thumb-card.selected .select-badge {
  background: var(--ok);
  border-color: var(--ok);
  color: white;
}

.thumb-card.liked .like-badge {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

.thumb-card .select-badge:active,
.thumb-card .like-badge:active {
  transform: scale(0.9);
}

.thumb-card .count-badge {
  position: absolute;
  bottom: 8px;
  left: 8px;
  background: rgba(15, 17, 21, 0.75);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
  color: var(--muted);
}

.thumb-card .picker-names {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(15, 17, 21, 0.9), transparent);
  padding: 16px 10px 8px;
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.center-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card { width: 100%; max-width: 380px; }
.auth-card h2 { margin-top: 0; }

.muted { color: var(--muted); }
.error { color: var(--danger); font-size: 13px; margin-top: 8px; }

.tabs { display: flex; gap: 8px; margin: 20px 0; }
.tab {
  padding: 11px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
  touch-action: manipulation;
}
.tab.active { background: var(--accent); border-color: var(--accent); color: white; }

.upload-drop {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
  margin-top: 20px;
}
.upload-drop.dragover { border-color: var(--accent); color: var(--text); }

.progress-list { margin-top: 16px; display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.progress-row { display: flex; justify-content: space-between; color: var(--muted); }
.progress-row.done { color: var(--ok); }
.progress-row.error { color: var(--danger); }

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.lightbox img {
  max-width: 90vw;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 8px;
}

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 10px;
}
.lightbox-close:hover { color: var(--accent); }

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(23, 26, 33, 0.7);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-nav:hover { border-color: var(--accent); }
.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }

.lightbox-footer {
  margin-top: 18px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  text-align: center;
}

/* Phones: tighter container padding, denser 2-column grid instead of the
   single huge column minmax(180px,...) forces on ~360-390px screens, and
   the lightbox nav arrows pulled in so they don't crowd the image edge. */
@media (max-width: 640px) {
  .container {
    padding: 16px 12px 60px;
  }

  .grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
  }

  .topbar {
    padding: 14px 16px;
  }

  .lightbox {
    padding: 12px;
  }

  .lightbox-prev { left: 6px; }
  .lightbox-next { right: 6px; }

  .lightbox-nav {
    width: 40px;
    height: 40px;
    font-size: 24px;
  }
}