/* ============================================================================
   Task Manager v3.0 — Global Styles
   ============================================================================ */

:root {
  --primary: #378ADD;
  --primary-hover: #2d75be;
  --primary-light: #E6F1FB;
  --primary-text: #0C447C;

  --bg: #FFFFFF;
  --bg-secondary: #F7F9FC;
  --bg-tertiary: #EDF1F7;

  --text: #1A1D23;
  --text-secondary: #5F6775;
  --text-tertiary: #8A919F;

  --border: rgba(0, 0, 0, 0.1);
  --border-strong: rgba(0, 0, 0, 0.18);

  --success: #3B6D11;
  --success-bg: #EAF3DE;
  --success-light: #B7E1CD;

  --warning: #BA7517;
  --warning-bg: #FAEEDA;
  --warning-light: #FFF2CC;

  --danger: #A32D2D;
  --danger-bg: #FCEBEB;
  --danger-light: #F4C7C3;

  --info: #185FA5;
  --info-bg: #E6F1FB;
  --info-light: #CFE2F3;

  --hold-bg: #CFE2F3;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.08);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
}

[data-theme="dark"] {
  --bg: #0F1419;
  --bg-secondary: #1A1F26;
  --bg-tertiary: #242A33;
  --text: #E5E8EC;
  --text-secondary: #9CA3AF;
  --text-tertiary: #6B7280;
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.2);
  --primary-light: rgba(55, 138, 221, 0.15);
  --primary-text: #85B7EB;
  --success-bg: rgba(59, 109, 17, 0.2);
  --warning-bg: rgba(186, 117, 23, 0.2);
  --danger-bg: rgba(163, 45, 45, 0.2);
  --info-bg: rgba(24, 95, 165, 0.2);
  --hold-bg: rgba(24, 95, 165, 0.25);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.5);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0; height: 100%;
  font-family: var(--font-sans);
  font-size: 14px; line-height: 1.5;
  color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 500; color: var(--text); }
h1 { font-size: 24px; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }
h4 { font-size: 14px; }

p { margin: 0; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Form Elements ---------- */
input, select, textarea {
  font-family: inherit; font-size: 14px;
  padding: 8px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg); color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(55, 138, 221, 0.15);
}
input[type="checkbox"], input[type="radio"] { width: auto; }
textarea { resize: vertical; min-height: 70px; }
label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.form-group { margin-bottom: 14px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 14px;
  font-size: 14px; font-weight: 500;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg); color: var(--text);
  cursor: pointer; transition: all 0.15s;
  font-family: inherit;
}
.btn:hover { background: var(--bg-secondary); }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: white; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-danger { background: var(--danger); color: white; border-color: var(--danger); }
.btn-success { background: var(--success); color: white; border-color: var(--success); }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--bg-secondary); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-lg { padding: 10px 18px; font-size: 15px; }
.btn-block { width: 100%; }

/* ---------- Cards ---------- */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
}
.kpi-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
}
.kpi-card .label { font-size: 12px; color: var(--text-secondary); }
.kpi-card .value { font-size: 24px; font-weight: 500; margin-top: 4px; }
.kpi-card .value.danger { color: var(--danger); }
.kpi-card .value.warning { color: var(--warning); }
.kpi-card .value.success { color: var(--success); }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px; font-weight: 500;
  border-radius: 10px;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-hold { background: var(--hold-bg); color: var(--info); }
.badge-neutral { background: var(--bg-tertiary); color: var(--text-secondary); }

/* ---------- Status colors (match Google Sheet) ---------- */
.status-pending { background: var(--danger-light); color: #791F1F; }
.status-in-progress { background: var(--warning-light); color: #633806; }
.status-done { background: var(--success-light); color: #0C543C; }
.status-on-hold { background: var(--hold-bg); color: var(--info); }
.status-under-review { background: #E8DAEF; color: #6C3483; }
.status-approved { background: #ABEBC6; color: #1E8449; }
.status-rework { background: #FADBD8; color: #922B21; }

/* ---------- Alerts ---------- */
.alert {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 13px; margin: 10px 0;
}
.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid var(--success); }
.alert-error { background: var(--danger-bg); color: var(--danger); border: 1px solid var(--danger); }
.alert-info { background: var(--info-bg); color: var(--info); border: 1px solid var(--info); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid var(--warning); }

/* ---------- Utilities ---------- */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.text-sm { font-size: 13px; }
.text-xs { font-size: 11px; }
.text-muted { color: var(--text-secondary); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-success { color: var(--success); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.hidden { display: none !important; }
.full-width { width: 100%; }

/* ---------- Tables ---------- */
table.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data-table th {
  text-align: left;
  padding: 10px 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  color: var(--text-secondary);
}
table.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
table.data-table tr:hover td { background: var(--bg-secondary); }

/* ---------- Spinner ---------- */
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Empty state ---------- */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
}
.empty-state-icon { font-size: 48px; margin-bottom: 12px; }

/* ---------- Form rows ---------- */
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  body { font-size: 13px; }
  .hide-mobile { display: none !important; }
  .form-row { flex-direction: column; gap: 0; }
}