*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg-gradient: linear-gradient(135deg, #0c1821 0%, #0f2027 30%, #1a3a4a 70%, #162d3e 100%);
  --glass: rgba(20, 40, 55, 0.55);
  --glass-border: rgba(255,255,255,0.08);
  --glass-hover: rgba(30, 55, 75, 0.65);
  --text: #e0e8ef;
  --text-dim: #7a95a8;
  --text-bright: #ffffff;
  --accent: #4fd1c5;
  --accent-dim: rgba(79,209,197,0.15);
  --green: #38d9a9;
  --red: #ff6b6b;
  --yellow: #ffd43b;
  --blue: #4dabf7;
  --purple: #b197fc;
  --radius: 20px;
  --radius-sm: 14px;
  --radius-xs: 10px;
  --sidebar-w: 72px;
  --blur: blur(20px);
}
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-gradient); background-attachment: fixed;
  color: var(--text); line-height: 1.5; min-height: 100vh;
}
.sidebar {
  position: fixed; left: 0; top: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--glass); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border-right: 1px solid var(--glass-border);
  display: flex; flex-direction: column; align-items: center;
  padding: 24px 0; gap: 8px; z-index: 100;
}
.sidebar-brand { font-size: 22px; font-weight: 800; color: var(--accent); margin-bottom: 32px; letter-spacing: -1px; }
.sidebar a {
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 14px;
  color: var(--text-dim); text-decoration: none;
  transition: all 0.25s; font-size: 20px; position: relative;
}
.sidebar a:hover { background: var(--accent-dim); color: var(--accent); }
.sidebar a.active { background: var(--accent-dim); color: var(--accent); }
.sidebar a .label {
  position: absolute; left: 60px; background: rgba(0,0,0,0.8);
  color: var(--text); font-size: 12px; padding: 4px 10px;
  border-radius: 6px; white-space: nowrap; pointer-events: none;
  opacity: 0; transition: opacity 0.2s;
}
.sidebar a:hover .label { opacity: 1; }
.main { margin-left: var(--sidebar-w); padding: 28px 32px; }
.header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 28px; flex-wrap: wrap; gap: 12px;
}
.header-title { font-size: 22px; font-weight: 700; color: var(--text-bright); }
.header-sub { font-size: 13px; color: var(--text-dim); margin-top: 2px; }
.period-picker {
  display: flex; align-items: center; gap: 8px 12px; flex-wrap: wrap;
  background: var(--glass); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-sm); padding: 8px 12px;
  max-width: 100%;
}
.period-nav { display: flex; align-items: center; gap: 6px; }
.period-btn {
  background: rgba(255,255,255,0.06); border: 1px solid var(--glass-border);
  color: var(--text-dim); width: 34px; height: 34px; border-radius: var(--radius-xs);
  cursor: pointer; font-size: 13px; display: flex; align-items: center; justify-content: center; transition: all 0.2s;
}
.period-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.period-label { font-size: 14px; font-weight: 600; min-width: 140px; text-align: center; color: var(--text-bright); }
.period-modes { display: flex; gap: 4px; }
.period-mode-btn {
  padding: 5px 12px; border-radius: 20px; border: 1px solid var(--glass-border);
  background: transparent; color: var(--text-dim); font-size: 11px;
  cursor: pointer; transition: all 0.2s; font-family: inherit;
}
.period-mode-btn:hover { border-color: var(--accent); color: var(--accent); }
.period-mode-btn.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.period-custom { display: flex; align-items: center; gap: 6px; }
.period-date-input {
  background: rgba(255,255,255,0.06); border: 1px solid var(--glass-border);
  color: var(--text); padding: 5px 8px; border-radius: var(--radius-xs); font-size: 12px; font-family: inherit;
}
.period-date-input::-webkit-calendar-picker-indicator { filter: invert(0.6); }
.period-sep { color: var(--text-dim); font-size: 12px; }
.period-apply-btn {
  padding: 5px 12px; border-radius: var(--radius-xs); border: 1px solid var(--accent);
  background: var(--accent-dim); color: var(--accent); font-size: 11px;
  cursor: pointer; font-family: inherit; font-weight: 600; transition: all 0.2s;
}
.period-apply-btn:hover { background: rgba(79,209,197,0.3); }
.glass-card {
  background: var(--glass);
  backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.3s;
}
.glass-card:hover { background: var(--glass-hover); }
.card-label { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; margin-bottom: 12px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge-green { background: rgba(56,217,169,0.15); color: var(--green); }
.badge-red { background: rgba(255,107,107,0.15); color: var(--red); }
.badge-blue { background: rgba(77,171,247,0.15); color: var(--blue); }
.badge-yellow { background: rgba(255,212,59,0.15); color: var(--yellow); }
.badge-dim { background: rgba(122,149,168,0.15); color: var(--text-dim); }
.loading-indicator {
  grid-column: 1 / -1;
  display: flex; align-items: center; justify-content: center;
  gap: 10px; padding: 60px 0; color: var(--text-dim); font-size: 14px;
}
.loading-spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--glass-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.provider-badge {
  display: inline-block; padding: 1px 7px; border-radius: 6px;
  font-size: 10px; font-weight: 700; letter-spacing: 0.5px;
}
.provider-cc { background: rgba(79,209,197,0.15); color: var(--accent); }
.provider-codex { background: rgba(177,151,252,0.15); color: var(--purple); }
.td-provider { white-space: nowrap; }
.card-tag.provider-cc { background: rgba(79,209,197,0.15); color: var(--accent); }
.card-tag.provider-codex { background: rgba(177,151,252,0.15); color: var(--purple); }

/* ─── Mobile: sidebar → bottom nav ─── */
@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }
  .sidebar {
    position: fixed; left: 0; right: 0; bottom: 0; top: auto;
    width: 100%; height: 56px;
    flex-direction: row; justify-content: space-around;
    padding: 0 8px; gap: 0;
    border-right: none; border-top: 1px solid var(--glass-border);
    z-index: 200;
  }
  .sidebar-brand { display: none; }
  .sidebar a { width: 48px; height: 48px; }
  .sidebar a .label { display: none; }
  .main { margin-left: 0; padding: 16px 12px 72px 12px; }
  .header { flex-direction: column; align-items: flex-start; gap: 10px; margin-bottom: 16px; }
  .header-title { font-size: 18px; }
  .period-picker { width: 100%; }
  .period-label { min-width: auto; font-size: 13px; }
  .glass-card { padding: 16px; border-radius: var(--radius-sm); }
}

/* ─── Narrow with sidebar still visible ─── */
@media (max-width: 560px) {
  .main { padding: 14px 10px 24px 10px; }
  .header { flex-direction: column; align-items: stretch; gap: 8px; margin-bottom: 14px; }
  .header-title { font-size: 17px; }
  .period-picker { width: 100%; }
  .period-label { min-width: auto; font-size: 12px; }
  .period-modes { flex-wrap: wrap; }
  .period-custom { flex-wrap: wrap; }
  .glass-card { padding: 14px; border-radius: var(--radius-xs); }
}