/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #22263a;
  --border: #2e3248;
  --accent: #7c6af7;
  --accent-hover: #9585ff;
  --danger: #e05264;
  --success: #42c78a;
  --warn: #f0a035;
  --text: #e8eaf0;
  --muted: #8a8fa8;
  --radius: 10px;
  --sidebar-w: 220px;
}
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

/* ── Auth screen ── */
#authScreen {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh;
}
.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 360px;
}
.auth-card h1 { font-size: 20px; margin-bottom: 6px; }
.auth-card p  { color: var(--muted); font-size: 13px; margin-bottom: 28px; }
.auth-error   { color: var(--danger); font-size: 13px; margin-top: 12px; min-height: 18px; }

/* ── App layout ── */
#app { display: none; height: 100vh; overflow: hidden; }
.layout { display: flex; height: 100%; }

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  flex-shrink: 0;
}
.sidebar-brand {
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--border);
}
.sidebar-brand .brand-name { font-weight: 700; font-size: 15px; }
.sidebar-brand .brand-sub  { font-size: 11px; color: var(--accent); letter-spacing: .06em; text-transform: uppercase; }
.sidebar-nav { flex: 1; padding: 12px 8px; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: 7px;
  cursor: pointer;
  color: var(--muted);
  transition: background .15s, color .15s;
  font-size: 13.5px;
  border: none; background: none; width: 100%; text-align: left;
  text-decoration: none;
}
.nav-item:hover  { background: var(--surface2); color: var(--text); }
.nav-item.active { background: var(--surface2); color: var(--accent); font-weight: 600; }
.nav-icon { width: 18px; text-align: center; font-size: 15px; }
.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border);
}
.sidebar-user { font-size: 12px; color: var(--muted); margin-bottom: 8px; padding: 0 4px; }
.btn-back-app {
  display: block; width: 100%; padding: 8px; border-radius: 7px;
  background: none; border: 1px solid var(--border);
  color: var(--muted); font-size: 13px; text-align: center;
  text-decoration: none; margin-bottom: 8px;
  transition: all .15s;
}
.btn-back-app:hover { border-color: var(--accent); color: var(--accent); }
.btn-signout {
  width: 100%; padding: 8px; border-radius: 7px;
  background: none; border: 1px solid var(--border);
  color: var(--muted); cursor: pointer; font-size: 13px;
  transition: all .15s;
}
.btn-signout:hover { border-color: var(--danger); color: var(--danger); }

/* ── Testing / Gallery ── */
.gallery-group { margin-bottom: 32px; }
.gallery-group-title {
  font-size: 13px; font-weight: 600; color: var(--accent);
  margin-bottom: 10px; padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}
.gallery-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color .15s, transform .15s;
}
.gallery-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.gallery-card img {
  width: 100%; aspect-ratio: 1; object-fit: cover; display: block;
}
.gallery-card-label {
  padding: 6px 8px;
  font-size: 11px; color: var(--muted); line-height: 1.4;
}
.gallery-card-label strong { display: block; color: var(--text); font-size: 12px; margin-bottom: 1px; }

/* ── Analytics ── */
.an-stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-bottom: 24px; }
.an-stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 14px; }
.an-stat-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; }
.an-stat-value { font-size: 26px; font-weight: 700; }
.an-stat-sub { font-size: 11px; color: var(--muted); margin-top: 3px; }

.an-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.an-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin-bottom: 16px; }
@media (max-width: 900px) { .an-grid { grid-template-columns: 1fr; } .an-grid-3 { grid-template-columns: 1fr; } }

.an-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.an-card-title { font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 14px; }

.an-bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; font-size: 12px; }
.an-bar-label { width: 130px; flex-shrink: 0; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.an-bar-track { flex: 1; background: var(--surface2); border-radius: 4px; height: 8px; }
.an-bar-fill { height: 8px; border-radius: 4px; background: var(--accent); transition: width .4s; }
.an-bar-count { width: 36px; text-align: right; color: var(--muted); flex-shrink: 0; }

.an-sparkline { display: flex; align-items: flex-end; gap: 3px; height: 60px; }
.an-spark-bar { flex: 1; background: var(--accent); border-radius: 2px 2px 0 0; min-height: 2px; opacity: .75; transition: opacity .15s; cursor: default; position: relative; }
.an-spark-bar:hover { opacity: 1; }
.an-spark-bar[data-tip]:hover::after {
  content: attr(data-tip);
  position: absolute; bottom: calc(100% + 4px); left: 50%; transform: translateX(-50%);
  background: #000; color: #fff; font-size: 10px; padding: 2px 6px; border-radius: 4px; white-space: nowrap; pointer-events: none;
}
.an-spark-dates { display: flex; justify-content: space-between; font-size: 10px; color: var(--muted); margin-top: 4px; }

.an-leaderboard { width: 100%; border-collapse: collapse; font-size: 13px; }
.an-leaderboard th { text-align: left; padding: 6px 8px; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; border-bottom: 1px solid var(--border); }
.an-leaderboard td { padding: 8px 8px; border-bottom: 1px solid var(--border); }
.an-leaderboard tr:last-child td { border-bottom: none; }
.an-rank { font-weight: 700; color: var(--muted); width: 28px; }
.an-rank-1 { color: #f5c542; }
.an-rank-2 { color: #b0b0b0; }
.an-rank-3 { color: #cd7f32; }
.an-name { font-weight: 500; }
.an-email { color: var(--muted); font-size: 11px; }
.an-num { text-align: right; font-weight: 600; color: var(--accent); }
.an-num-sub { text-align: right; font-size: 11px; color: var(--muted); }

/* ── Main content ── */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.topbar {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  flex-shrink: 0;
}
.topbar-title { font-size: 18px; font-weight: 600; }
.content { flex: 1; overflow-y: auto; padding: 24px; }

/* ── Shared components ── */
.section { display: none; }
.section.active { display: block; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; margin-bottom: 28px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 16px;
}
.stat-label { font-size: 12px; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .05em; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--text); }
.stat-sub   { font-size: 12px; color: var(--muted); margin-top: 4px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 24px;
}
.card-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 10px;
}
.card-title { font-size: 14px; font-weight: 600; }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  padding: 10px 14px; text-align: left;
  font-size: 11.5px; font-weight: 600; color: var(--muted);
  text-transform: uppercase; letter-spacing: .05em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface2); }

/* Badges */
.badge {
  display: inline-block; padding: 2px 8px;
  border-radius: 20px; font-size: 11px; font-weight: 600;
}
.badge-green  { background: rgba(66,199,138,.15); color: var(--success); }
.badge-red    { background: rgba(224,82,100,.15);  color: var(--danger); }
.badge-purple { background: rgba(124,106,247,.15); color: var(--accent); }
.badge-muted  { background: var(--surface2);       color: var(--muted); }
.badge-warn   { background: rgba(240,160,53,.15);  color: var(--warn); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 7px; border: none;
  font-size: 13px; font-weight: 500; cursor: pointer;
  transition: all .15s;
}
.btn-primary  { background: var(--accent);   color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-outline  { background: none; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger   { background: none; border: 1px solid var(--border); color: var(--muted); }
.btn-danger:hover { border-color: var(--danger); color: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-icon { padding: 5px 8px; font-size: 13px; }

/* Form controls */
.form-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group label { font-size: 12px; color: var(--muted); font-weight: 500; }
input[type="text"], input[type="email"], input[type="number"],
input[type="date"], select, textarea {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 7px;
  font-size: 13px;
  outline: none;
  font-family: inherit;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}
input[type="checkbox"] { accent-color: var(--accent); width: 16px; height: 16px; cursor: pointer; }
.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 13px; margin-top: 4px; }

/* Pagination */
.pagination { display: flex; align-items: center; gap: 8px; margin-top: 14px; justify-content: flex-end; }
.page-btn {
  padding: 5px 12px; border-radius: 7px; border: 1px solid var(--border);
  background: none; color: var(--text); cursor: pointer; font-size: 13px;
  transition: all .15s;
}
.page-btn:hover:not(:disabled)  { border-color: var(--accent); color: var(--accent); }
.page-btn:disabled { opacity: .4; cursor: default; }
.page-info { font-size: 12px; color: var(--muted); }

/* Search row */
.search-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.search-row input { flex: 1; min-width: 200px; max-width: 320px; }

/* Modal */
.modal-backdrop {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.6); z-index: 100;
  align-items: center; justify-content: center;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 440px; max-width: 95vw;
}
.modal h2 { font-size: 16px; margin-bottom: 18px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }
.modal .form-group { margin-bottom: 14px; }
.modal .form-group input,
.modal .form-group select,
.modal .form-group textarea { width: 100%; }

/* Toast */
#toast {
  position: fixed; bottom: 24px; right: 24px;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 18px;
  font-size: 13px; z-index: 200;
  transform: translateY(80px); opacity: 0;
  transition: all .25s;
  pointer-events: none;
}
#toast.show { transform: translateY(0); opacity: 1; }
#toast.success { border-color: var(--success); color: var(--success); }
#toast.error   { border-color: var(--danger);  color: var(--danger); }

/* Loading */
.loading { color: var(--muted); padding: 32px; text-align: center; font-size: 13px; }
.empty   { color: var(--muted); padding: 32px; text-align: center; font-size: 13px; }