@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #F7F8FA;
  --surface: #FFFFFF;
  --surface-2: #F0F2F5;
  --border: #E5E7EB;
  --text: #111827;
  --text-2: #6B7280;
  --text-3: #9CA3AF;
  --accent: #2563EB;
  --accent-light: #EFF6FF;
  --accent-hover: #1D4ED8;
  --success: #16A34A;
  --success-light: #F0FDF4;
  --warning: #D97706;
  --warning-light: #FFFBEB;
  --danger: #DC2626;
  --danger-light: #FEF2F2;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.10);
  --sidebar-w: 240px;
  --transition: 150ms ease;
}

html { font-size: 14px; }
body { font-family: 'Plus Jakarta Sans', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; outline: none; }
input, select, textarea { font-family: inherit; }
ul { list-style: none; }

/* ─── Layout ─────────────────────────────── */
.app-shell { display: flex; min-height: 100vh; }

/* ─── Sidebar ─────────────────────────────── */
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; height: 100vh; z-index: 100;
  transition: transform var(--transition);
}
.sidebar-logo {
  padding: 22px 20px 18px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.sidebar-logo .logo-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--accent); display: flex; align-items: center; justify-content: center;
}
.sidebar-logo .logo-mark svg { color: #fff; }
.sidebar-logo .brand { font-weight: 700; font-size: 1.1rem; letter-spacing: -.3px; }
.sidebar-logo .brand span { color: var(--accent); }

.sidebar-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav-section-label {
  font-size: .7rem; font-weight: 600; color: var(--text-3);
  text-transform: uppercase; letter-spacing: .06em;
  padding: 8px 10px 4px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: var(--radius);
  color: var(--text-2); font-weight: 500; font-size: .93rem;
  transition: background var(--transition), color var(--transition);
  cursor: pointer; margin-bottom: 2px;
}
.nav-item svg { flex-shrink: 0; width: 17px; height: 17px; }
.nav-item:hover { background: var(--bg); color: var(--text); }
.nav-item.active { background: var(--accent-light); color: var(--accent); }

.sidebar-footer {
  padding: 14px 16px; border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--accent-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.avatar span { font-size: .75rem; font-weight: 700; color: var(--accent); }
.user-info { flex: 1; min-width: 0; }
.user-name { font-weight: 600; font-size: .82rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: .72rem; color: var(--text-3); }

/* ─── Main content ─────────────────────────── */
.main-content { margin-left: var(--sidebar-w); flex: 1; min-width: 0; }

/* ─── Topbar ─────────────────────────────── */
.topbar {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 0 28px; height: 60px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 90;
}
.topbar-title { font-weight: 700; font-size: 1.05rem; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.mobile-menu-btn { display: none; background: transparent; border: none; color: var(--text); padding: 4px; border-radius: 4px; cursor: pointer; }
.mobile-menu-btn:hover { background: var(--surface-2); }

/* ─── Page body ─────────────────────────────── */
.page-body { padding: 28px; max-width: 1280px; }

/* ─── Cards ─────────────────────────────── */
.card {
  background: var(--surface); border-radius: var(--radius-lg);
  border: 1px solid var(--border); box-shadow: var(--shadow);
}
.card-header {
  padding: 18px 20px 0; display: flex; align-items: center; justify-content: space-between;
}
.card-title { font-weight: 700; font-size: 1rem; }
.card-subtitle { font-size: .8rem; color: var(--text-2); margin-top: 2px; }
.card-body { padding: 20px; }

/* ─── Stat cards ─────────────────────────── */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 20px;
}
.stat-card .stat-label { font-size: .78rem; color: var(--text-2); font-weight: 500; margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }
.stat-card .stat-value { font-size: 1.8rem; font-weight: 800; letter-spacing: -.5px; line-height: 1; }
.stat-card .stat-delta { font-size: .75rem; margin-top: 6px; display: flex; align-items: center; gap: 4px; }
.stat-card .stat-delta.up { color: var(--success); }
.stat-card .stat-delta.down { color: var(--danger); }

/* ─── Buttons ─────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 16px; border-radius: 8px;
  font-size: .85rem; font-weight: 600;
  transition: background var(--transition), box-shadow var(--transition);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); box-shadow: 0 2px 8px rgba(37,99,235,.3); }
.btn-secondary { background: var(--surface-2); color: var(--text); }
.btn-secondary:hover { background: var(--border); }
.btn-outline { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn-outline:hover { background: var(--accent-light); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: .78rem; }
.btn-lg { padding: 11px 22px; font-size: .95rem; }
.btn svg { width: 15px; height: 15px; }

/* ─── Badges ─────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px; border-radius: 20px; font-size: .72rem; font-weight: 600;
}
.badge-blue { background: var(--accent-light); color: var(--accent); }
.badge-green { background: var(--success-light); color: var(--success); }
.badge-yellow { background: var(--warning-light); color: var(--warning); }
.badge-red { background: var(--danger-light); color: var(--danger); }
.badge-gray { background: var(--surface-2); color: var(--text-2); }

/* ─── Form elements ─────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-label { font-size: .82rem; font-weight: 600; display: block; margin-bottom: 6px; color: var(--text); }
.form-hint { font-size: .73rem; color: var(--text-3); margin-top: 4px; }
.form-control {
  width: 100%; padding: 9px 12px; font-size: .88rem;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--surface); color: var(--text);
  transition: border-color var(--transition);
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.08); }
select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 32px; }

/* ─── Range slider ─────────────────────────── */
.slider-wrap { display: flex; align-items: center; gap: 12px; }
input[type=range] { flex: 1; height: 4px; accent-color: var(--accent); cursor: pointer; }
.slider-val { font-size: .85rem; font-weight: 700; color: var(--accent); min-width: 36px; }

/* ─── Table ─────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .82rem; }
thead th { font-weight: 600; color: var(--text-2); text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; }
tbody td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg); }

/* ─── Tabs ─────────────────────────────── */
.tabs { display: flex; gap: 2px; background: var(--surface-2); border-radius: 9px; padding: 3px; }
.tab-btn {
  flex: 1; padding: 7px 14px; border-radius: 7px;
  font-size: .82rem; font-weight: 600; color: var(--text-2);
  background: transparent; transition: background var(--transition), color var(--transition);
}
.tab-btn.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ─── Progress bar ─────────────────────────── */
.progress-bar { height: 6px; background: var(--surface-2); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 3px; background: var(--accent); transition: width .6s ease; }
.progress-fill.green { background: var(--success); }
.progress-fill.red { background: var(--danger); }
.progress-fill.yellow { background: var(--warning); }

/* ─── Alert / notice ─────────────────────────── */
.notice {
  padding: 12px 16px; border-radius: var(--radius); font-size: .82rem;
  display: flex; align-items: flex-start; gap: 10px;
}
.notice.blue { background: var(--accent-light); color: var(--accent); border: 1px solid #BFDBFE; }
.notice.green { background: var(--success-light); color: var(--success); border: 1px solid #BBF7D0; }
.notice.yellow { background: var(--warning-light); color: var(--warning); border: 1px solid #FDE68A; }

/* ─── Scenario cards ─────────────────────────── */
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.scenario-card {
  border: 2px solid var(--border); border-radius: var(--radius-lg);
  padding: 16px; cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.scenario-card:hover { border-color: var(--accent); background: var(--accent-light); }
.scenario-card.selected { border-color: var(--accent); background: var(--accent-light); }
.scenario-icon { width: 36px; height: 36px; border-radius: 8px; display: flex; align-items: center; justify-content: center; margin-bottom: 10px; }
.scenario-icon.blue { background: var(--accent-light); color: var(--accent); }
.scenario-icon.yellow { background: var(--warning-light); color: var(--warning); }
.scenario-icon.red { background: var(--danger-light); color: var(--danger); }
.scenario-title { font-weight: 700; font-size: .88rem; margin-bottom: 4px; }
.scenario-desc { font-size: .75rem; color: var(--text-2); line-height: 1.5; }

/* ─── Province map ─────────────────────────── */
#map-container { height: 320px; border-radius: var(--radius); overflow: hidden; background: var(--surface-2); }

/* ─── SHAP bar ─────────────────────────── */
.shap-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.shap-label { font-size: .78rem; width: 200px; flex-shrink: 0; color: var(--text-2); text-align: right; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.shap-bar-wrap { flex: 1; height: 20px; position: relative; display: flex; align-items: center; }
.shap-bar-center { position: absolute; left: 50%; width: 1px; height: 100%; background: var(--border); }
.shap-bar-fill { position: absolute; height: 14px; border-radius: 2px; }
.shap-bar-fill.pos { background: #2563EB; left: 50%; }
.shap-bar-fill.neg { background: #DC2626; right: 50%; }
.shap-val { font-size: .75rem; font-weight: 700; width: 48px; flex-shrink: 0; }
.shap-val.pos { color: var(--accent); }
.shap-val.neg { color: var(--danger); }

/* ─── Confusion matrix ─────────────────────────── */
.cm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; max-width: 280px; }
.cm-cell {
  padding: 14px; text-align: center; border-radius: 6px; font-weight: 700;
}
.cm-tp { background: #DCFCE7; color: #15803D; }
.cm-fp { background: #FEE2E2; color: #B91C1C; }
.cm-fn { background: #FEF9C3; color: #92400E; }
.cm-tn { background: #DBEAFE; color: #1E40AF; }
.cm-label { font-size: .7rem; font-weight: 500; text-align: center; margin-top: 4px; }

/* ─── Loading spinner ─────────────────────────── */
.spinner { width: 20px; height: 20px; border: 2.5px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Login page ─────────────────────────── */
.login-shell {
  min-height: 100vh; display: flex; align-items: stretch; background: var(--bg);
}
.login-left {
  flex: 1; display: flex; align-items: center; justify-content: center; padding: 48px;
}
.login-right {
  width: 440px; flex-shrink: 0;
  background: var(--surface); border-left: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; padding: 48px;
}
.login-form-wrap { width: 100%; }
.login-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 32px; }
.login-logo .mark { width: 38px; height: 38px; border-radius: 10px; background: var(--accent); display: flex; align-items: center; justify-content: center; }
.login-logo .mark svg { color: #fff; }
.login-logo .name { font-size: 1.3rem; font-weight: 800; letter-spacing: -.4px; }
.login-logo .name span { color: var(--accent); }

.login-hero { max-width: 480px; }
.login-hero h1 { font-size: 2.2rem; font-weight: 800; line-height: 1.2; letter-spacing: -.5px; margin-bottom: 18px; }
.login-hero p { font-size: .95rem; color: var(--text-2); line-height: 1.7; }
.login-stats { display: flex; gap: 28px; margin-top: 32px; }
.login-stat .val { font-size: 1.6rem; font-weight: 800; color: var(--accent); }
.login-stat .lbl { font-size: .75rem; color: var(--text-2); font-weight: 500; }

/* ─── Policy brief ─────────────────────────── */
.brief-paper {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px 36px; font-size: .88rem;
  line-height: 1.8;
}
.brief-paper h2 { font-size: 1.05rem; font-weight: 800; margin-bottom: 12px; }
.brief-paper h3 { font-size: .9rem; font-weight: 700; margin: 20px 0 8px; color: var(--accent); }
.brief-paper p { margin-bottom: 12px; color: var(--text); }

/* ─── Utilities ─────────────────────────────── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.w-full { width: 100%; }
.text-sm { font-size: .8rem; }
.text-xs { font-size: .73rem; }
.text-muted { color: var(--text-2); }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.fw-700 { font-weight: 700; }
.fw-600 { font-weight: 600; }
.rounded { border-radius: var(--radius); }
.divider { height: 1px; background: var(--border); margin: 16px 0; }

/* ─── Toast ─────────────────────────────── */
#toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--text); color: #fff; padding: 12px 18px; border-radius: 10px;
  font-size: .82rem; font-weight: 500; box-shadow: var(--shadow-lg);
  display: flex; align-items: center; gap: 8px;
  animation: slideIn .25s ease;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
@keyframes slideIn { from { transform: translateY(12px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ─── Responsive ─────────────────────────────── */
@media (max-width: 1100px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); box-shadow: var(--shadow-lg); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .mobile-menu-btn { display: block; }
  .login-left { display: none; }
  .login-right { width: 100%; border-left: none; }
  .scenario-grid { grid-template-columns: 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}