/* ── Dark mode (default) ──────────────────────────────────────────── */
:root {
  --bg-color: #080b12;
  --sidebar-bg: #0d131f;
  --card-bg: #111827;
  --border-color: #1f2937;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --primary-blue: #2563eb;
  --primary-blue-hover: #1d4ed8;
  --primary-blue-active: #3b82f6;
  --danger-color: #ef4444;
  --input-bg: #080b12;
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.4);
  --pill-bg: rgba(0,0,0,0.2);
  --user-badge-bg: rgba(255,255,255,0.05);
  --btn-outline-hover: rgba(255,255,255,0.05);
  --google-btn-hover: rgba(255,255,255,0.05);
}

/* ── Light mode overrides ────────────────────────────────────────── */
body.light {
  --bg-color: #f1f5f9;
  --sidebar-bg: #ffffff;
  --card-bg: #ffffff;
  --border-color: #cbd5e1;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --primary-blue: #1d4ed8;
  --primary-blue-hover: #1e40af;
  --primary-blue-active: #2563eb;
  --danger-color: #dc2626;
  --input-bg: #f8fafc;
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.08);
  --pill-bg: #f8fafc;
  --user-badge-bg: #f1f5f9;
  --btn-outline-hover: #f1f5f9;
  --google-btn-hover: #f8fafc;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', system-ui, sans-serif; }

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
}

/* Typography & Utilities */
.hidden { display: none !important; }
h1, h2 { font-weight: 600; margin: 0; }
.text-secondary { color: var(--text-secondary); }

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}
.sidebar-header {
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  gap: 10px;
}
.sidebar-nav {
  padding: 20px 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.nav-item {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 12px 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s;
  font-weight: 500;
}
.nav-item:hover {
  background-color: var(--btn-outline-hover);
  color: var(--text-primary);
}
.nav-item.active {
  background-color: var(--primary-blue);
  color: #fff;
}

/* Main Layout */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Header */
.top-header {
  height: 64px;
  background-color: var(--sidebar-bg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}
.header-left, .header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo-placeholder {
  background: #fff;
  color: #000;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: bold;
  font-size: 14px;
}
.header-title { font-size: 18px; font-weight: 600; }
.user-email {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--user-badge-bg);
  padding: 6px 12px;
  border-radius: 20px;
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background-color: #f59e0b;
}

/* Content Area */
.content-area {
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.top-action-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 24px;
  gap: 12px;
}
.action-inputs {
  display: flex;
  gap: 12px;
  align-items: stretch;
}
.password-input {
  width: 300px;
  font-size: 15px;
}

/* Grid & Cards */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}
.card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.card-title {
  font-size: 16px;
  margin-bottom: 16px;
}

/* Pill Checkboxes (Datasets) */
.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.pill-group-vertical {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pill-checkbox {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  background-color: transparent;
  transition: all 0.2s;
  user-select: none;
  font-size: 14px;
}
.pill-checkbox:hover { border-color: var(--text-secondary); }
.pill-checkbox input {
  position: absolute; opacity: 0; cursor: pointer;
}
/* Custom Checkbox UI */
.checkmark {
  width: 18px; height: 18px;
  border-radius: 4px;
  border: 1px solid var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
}
.pill-checkbox input:checked ~ .checkmark {
  background-color: var(--primary-blue);
  border-color: var(--primary-blue);
}
.pill-checkbox input:checked ~ .checkmark::after {
  content: ""; width: 4px; height: 8px;
  border: solid white; border-width: 0 2px 2px 0;
  transform: rotate(45deg); margin-bottom: 2px;
}
.pill-checkbox.active {
  border-color: var(--primary-blue);
  background-color: rgba(37,99,235,0.1);
}

/* Date Range */
.date-inputs {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.date-separator { color: var(--text-secondary); font-size: 14px; }
.date-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.preset-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}
.preset-btn:hover { border-color: var(--text-primary); color: var(--text-primary); }
.preset-btn.active {
  background-color: rgba(37,99,235,0.1);
  border-color: var(--primary-blue);
  color: var(--primary-blue-active);
}

/* Forms */
.form-input {
  background-color: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: 6px;
  outline: none;
  width: 100%;
}
.form-input:focus { border-color: var(--primary-blue); }

/* Buttons */
.btn {
  background-color: var(--primary-blue);
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.2s;
}
.btn:hover:not(:disabled) { background-color: var(--primary-blue-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-large { padding: 12px 24px; font-size: 16px; font-weight: 600; }
.btn-outline {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}
.btn-outline:hover { background-color: var(--btn-outline-hover); color: var(--text-primary); }
.btn-small { padding: 6px 12px; font-size: 12px; }

/* Columns Section */
.columns-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 20px;
}
.columns-subtitle {
  font-size: 13px; color: var(--text-secondary); margin-top: 4px;
}
.columns-actions { display: flex; gap: 8px; }
.columns-search { margin-bottom: 20px; }
.columns-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.columns-grid .pill-checkbox {
  background-color: var(--pill-bg);
}

/* ── Alert variants ──────────────────────────────────────────────── */
.alert { padding: 12px 16px; border-radius: 6px; font-size: 14px; width: 100%; text-align: center; }

/* Error */
.alert-error {
  background-color: rgba(239,68,68,0.12);
  color: #fca5a5;
  border: 1px solid rgba(239,68,68,0.3);
}
body.light .alert-error {
  background-color: #fee2e2;
  color: #991b1b;
  border-color: #f87171;
}

/* Warning (row limit exceeded) */
.alert-warning {
  background-color: rgba(245,158,11,0.12);
  color: #fcd34d;
  border: 1px solid rgba(245,158,11,0.35);
}
body.light .alert-warning {
  background-color: #fef3c7;
  color: #78350f;
  border: 1px solid #f59e0b;
  font-weight: 500;
}
body.light .alert-warning strong {
  color: #92400e;
}

/* Info (general status) */
.alert-info {
  background-color: var(--pill-bg);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

/* Download status (blue) */
.alert-status {
  background-color: rgba(59,130,246,0.12);
  color: #93c5fd;
  border: 1px solid rgba(59,130,246,0.3);
}
body.light .alert-status {
  background-color: #dbeafe;
  color: #1e40af;
  border-color: #93c5fd;
  font-weight: 500;
}

/* Stale lock (purple) */
.alert-lock {
  background-color: rgba(139,92,246,0.12);
  color: #c4b5fd;
  border: 1px solid rgba(139,92,246,0.3);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
body.light .alert-lock {
  background-color: #ede9fe;
  color: #4c1d95;
  border-color: #a78bfa;
  font-weight: 500;
}
.btn-cancel-lock {
  background-color: #7c3aed;
  color: #fff;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s;
}
.btn-cancel-lock:hover { background-color: #6d28d9; }

/* ── Refresh Count Button ─────────────────────────────────────────── */
.btn-refresh {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  letter-spacing: 0.3px;
}
.btn-refresh:hover:not(:disabled) {
  background-color: var(--primary-blue);
  border-color: var(--primary-blue);
  color: #fff;
}
.btn-refresh:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.refresh-icon {
  display: inline-block;
  font-size: 14px;
  line-height: 1;
  transition: transform 0.4s ease;
}
.btn-refresh.spinning .refresh-icon {
  animation: spin360 0.6s linear infinite;
}
@keyframes spin360 {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Auth Pages (Login / Signup / Logout) */
.login-container {
  display: grid;
  place-items: center;
  min-height: 100vh;
  width: 100%;
  padding: 20px;
}
.auth-card {
  width: 100%;
  max-width: 460px;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 36px;
  text-align: center;
  box-shadow: 0 10px 25px -5px rgba(0,0,0,0.2);
}
.auth-card h1 { font-size: 24px; margin-bottom: 8px; }
.auth-card p { color: var(--text-secondary); font-size: 14px; margin-bottom: 24px; }
.g-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: white;
  color: #f59e0b;
  border-radius: 50%;
  font-weight: bold;
  font-size: 14px;
}
.btn-google {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 12px 16px;
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-google:hover {
  background-color: var(--google-btn-hover);
}