/* ============================================================
   God's Eye Dashboard — Design System
   Vistaar News (विस्तार न्यूज़)
   ============================================================ */

:root {
    /* Brand colors */
    --brand-primary: #CC1F1F;
    --brand-bright: #E82222;
    --brand-deep: #C0392B;
    --brand-navy: #003087;
    --brand-silver: #C0C0C0;

    /* Dashboard UI */
    --ui-sidebar-bg: #0A1E5E;
    --ui-sidebar-active: #1A3A8F;
    --ui-sidebar-text: #FFFFFF;
    --ui-sidebar-icon: #8EAADC;
    --ui-sidebar-hover: #142E6E;
    --ui-topbar-bg: #FFFFFF;
    --ui-page-bg: #F0F2F5;
    --ui-card-bg: #FFFFFF;
    --ui-card-border: #E5E7EB;
    --ui-card-shadow: 0 1px 3px rgba(0,0,0,0.08);

    /* Data visualization */
    --data-blue-primary: #2563EB;
    --data-blue-light: #93C5FD;
    --data-green: #22C55E;
    --data-yellow: #F59E0B;
    --data-red: #EF4444;
    --data-teal: #14B8A6;
    --data-orange: #F97316;
    --data-gray: #9CA3AF;

    /* Status pills */
    --status-green-bg: #DCFCE7;
    --status-green-text: #166534;
    --status-yellow-bg: #FEF9C3;
    --status-yellow-text: #854D0E;
    --status-red-bg: #FEE2E2;
    --status-red-text: #991B1B;
    --status-blue-bg: #DBEAFE;
    --status-blue-text: #1E40AF;

    /* Typography */
    --text-primary: #111827;
    --text-secondary: #374151;
    --text-muted: #6B7280;
    --text-light: #9CA3AF;

    /* Layout */
    --sidebar-width: 220px;
    --sidebar-collapsed: 64px;
    --topbar-height: 56px;
}

/* ---- Reset & Base ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    font-family: 'Inter', 'Noto Sans Devanagari', sans-serif;
    font-size: 15px;
    line-height: 1.65;
    color: var(--text-primary);
    background: var(--ui-page-bg);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--data-blue-primary);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

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

/* ---- Sidebar ---- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--ui-sidebar-bg);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: width 0.2s ease;
    overflow-x: hidden;
}

.sidebar-logo {
    padding: 20px 16px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-logo .logo-block {
    display: inline-block;
    background: var(--brand-primary);
    border-radius: 8px;
    padding: 12px 16px 8px;
    position: relative;
}

.sidebar-logo .logo-vistaar {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: 3px;
    text-transform: uppercase;
    line-height: 1;
}

.sidebar-logo .logo-news {
    display: inline-block;
    background: var(--brand-navy);
    color: #FFFFFF;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    padding: 3px 12px;
    margin-top: 6px;
    border-radius: 3px;
}

.sidebar-logo .logo-tagline {
    display: block;
    color: rgba(255,255,255,0.6);
    font-size: 10px;
    margin-top: 8px;
}

/* Live indicator */
.live-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    font-size: 11px;
    font-weight: 600;
    color: #FFFFFF;
}

.live-dot {
    width: 8px;
    height: 8px;
    background: var(--brand-primary);
    border-radius: 50%;
    animation: pulse-live 1.5s infinite;
}

@keyframes pulse-live {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(204,31,31,0.6); }
    50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(204,31,31,0); }
}

/* Sidebar navigation */
.sidebar-nav {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.nav-section-label {
    padding: 16px 20px 6px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ui-sidebar-icon);
    opacity: 0.6;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--ui-sidebar-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    text-decoration: none;
}

.nav-item:hover {
    background: var(--ui-sidebar-hover);
    text-decoration: none;
}

.nav-item.active {
    background: var(--ui-sidebar-active);
    border-left-color: var(--brand-primary);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--ui-sidebar-icon);
}

.nav-item.active svg {
    color: #FFFFFF;
}

/* Sidebar footer */
.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-footer .user-avatar {
    width: 32px;
    height: 32px;
    background: var(--ui-sidebar-active);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFF;
    font-size: 13px;
    font-weight: 600;
}

.sidebar-footer .user-name {
    color: #FFFFFF;
    font-size: 12px;
    font-weight: 500;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-footer .user-role {
    display: block;
    color: var(--ui-sidebar-icon);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ---- Main Content ---- */
.main-content {
    flex: 1;
    min-width: 0;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top bar */
.topbar {
    height: var(--topbar-height);
    background: var(--ui-topbar-bg);
    border-bottom: 1px solid var(--ui-card-border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
    gap: 16px;
}

.topbar-breadcrumb {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.topbar-breadcrumb span {
    color: var(--text-light);
}

.topbar-breadcrumb .current {
    color: var(--text-secondary);
    font-weight: 600;
}

.topbar-spacer {
    flex: 1;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-btn {
    background: none;
    border: 1px solid var(--ui-card-border);
    border-radius: 8px;
    padding: 6px 14px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.topbar-btn:hover {
    border-color: var(--data-blue-primary);
    color: var(--data-blue-primary);
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.topbar-user-avatar {
    width: 32px;
    height: 32px;
    background: var(--data-blue-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFF;
    font-size: 12px;
    font-weight: 600;
}

/* Content area */
.content-area {
    flex: 1;
    padding: 24px;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.page-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Tab bar */
.tab-bar {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--ui-card-border);
    margin-bottom: 24px;
}

.tab-item {
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s ease;
    text-decoration: none;
}

.tab-item:hover {
    color: var(--text-secondary);
    text-decoration: none;
}

.tab-item.active {
    color: var(--data-blue-primary);
    border-bottom-color: var(--data-blue-primary);
    font-weight: 700;
}

/* ---- Cards ---- */
.card {
    background: var(--ui-card-bg);
    border: 1px solid var(--ui-card-border);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--ui-card-shadow);
    transition: box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title .badge {
    font-size: 11px;
    font-weight: 500;
}

/* ---- Grid Layouts ---- */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 24px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 24px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 24px;
}

.grid-2-1 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

/* ---- KPI Cards ---- */
.kpi-card {
    text-align: left;
}

.kpi-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 400;
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.1;
}

.kpi-delta {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-weight: 500;
    margin-top: 6px;
}

.kpi-delta.positive { color: var(--data-green); }
.kpi-delta.negative { color: var(--data-red); }
.kpi-delta.neutral { color: var(--text-muted); }

.kpi-progress {
    width: 100%;
    height: 4px;
    background: #E5E7EB;
    border-radius: 2px;
    margin-top: 12px;
    overflow: hidden;
}

.kpi-progress-fill {
    height: 100%;
    border-radius: 2px;
    background: var(--data-blue-primary);
    transition: width 0.6s ease;
}

/* ---- Status Pills ---- */
.pill {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.6;
}

.pill-green { background: var(--status-green-bg); color: var(--status-green-text); }
.pill-yellow { background: var(--status-yellow-bg); color: var(--status-yellow-text); }
.pill-red { background: var(--status-red-bg); color: var(--status-red-text); }
.pill-blue { background: var(--status-blue-bg); color: var(--status-blue-text); }

/* ---- Tables ---- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table thead th {
    background: #F9FAFB;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 10px 14px;
    border-bottom: 1px solid var(--ui-card-border);
    text-align: left;
}

.data-table tbody td {
    padding: 10px 14px;
    border-bottom: 1px solid #F3F4F6;
    color: var(--text-secondary);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background: #F9FAFB;
}

.data-table tbody tr:nth-child(even) {
    background: #FAFBFC;
}

.data-table tbody tr:nth-child(even):hover {
    background: #F9FAFB;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 18px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1.4;
}

.btn-primary {
    background: var(--brand-primary);
    color: #FFFFFF;
}
.btn-primary:hover { background: var(--brand-deep); }

.btn-blue {
    background: var(--data-blue-primary);
    color: #FFFFFF;
}
.btn-blue:hover { background: #1D4ED8; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--ui-card-border);
    color: var(--text-secondary);
}
.btn-outline:hover {
    border-color: var(--text-muted);
    background: #F9FAFB;
}

.btn-danger {
    background: var(--data-red);
    color: #FFFFFF;
}
.btn-danger:hover { background: #DC2626; }

.btn-success {
    background: var(--data-green);
    color: #FFFFFF;
}
.btn-success:hover { background: #16A34A; }

.btn-sm {
    padding: 5px 12px;
    font-size: 13px;
}

.btn-icon {
    padding: 6px;
    border-radius: 6px;
}

/* ---- Forms ---- */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    border: 1px solid var(--ui-card-border);
    border-radius: 8px;
    background: #FFFFFF;
    color: var(--text-primary);
    transition: border-color 0.2s ease;
    font-family: 'Inter', sans-serif;
}

.form-input:focus {
    outline: none;
    border-color: var(--data-blue-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.form-input::placeholder {
    color: var(--text-light);
}

.form-row {
    display: flex;
    gap: 12px;
}

.form-row .form-group {
    flex: 1;
}

.form-hint {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}

.form-error {
    font-size: 12px;
    color: var(--data-red);
    margin-top: 4px;
}

/* ---- Section Headers ---- */
.section-header {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    padding-left: 12px;
    border-left: 4px solid var(--brand-primary);
    margin-bottom: 16px;
    line-height: 1.4;
}

/* ---- Alerts / Messages ---- */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-info { background: var(--status-blue-bg); color: var(--status-blue-text); }
.alert-success { background: var(--status-green-bg); color: var(--status-green-text); }
.alert-warning { background: var(--status-yellow-bg); color: var(--status-yellow-text); }
.alert-danger { background: var(--status-red-bg); color: var(--status-red-text); }

/* ---- Chart Container ---- */
.chart-container {
    position: relative;
    width: 100%;
    height: 300px;
}

.chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ---- Tweet Cards ---- */
.tweet-card {
    border: 1px solid var(--ui-card-border);
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 12px;
    background: #FFFFFF;
    transition: box-shadow 0.2s ease;
}

.tweet-card:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.tweet-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.tweet-handle {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.tweet-time {
    font-size: 12px;
    color: var(--text-light);
}

.tweet-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.tweet-metrics {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: var(--text-muted);
}

.tweet-metric {
    display: flex;
    align-items: center;
    gap: 4px;
}

.tweet-metric svg {
    width: 14px;
    height: 14px;
}

/* ---- Empty State ---- */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    color: var(--text-light);
    margin-bottom: 12px;
}

.empty-state p {
    font-size: 15px;
}

/* ---- Donut / Gauge ---- */
.gauge-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.gauge-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.gauge-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ---- Competitor Colors ---- */
.competitor-color-1 { color: #003087; }
.competitor-color-2 { color: #2ECC71; }
.competitor-color-3 { color: #F39C12; }
.competitor-color-4 { color: #9B59B6; }
.competitor-color-5 { color: #1ABC9C; }
.competitor-color-6 { color: #E67E22; }
.competitor-color-7 { color: #3498DB; }
.competitor-color-8 { color: #E91E63; }
.competitor-color-9 { color: #00BCD4; }
.competitor-color-10 { color: #795548; }

/* ---- Dropdown ---- */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-select {
    appearance: none;
    padding: 8px 32px 8px 12px;
    font-size: 14px;
    border: 1px solid var(--ui-card-border);
    border-radius: 8px;
    background: #FFFFFF url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236B7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E") no-repeat right 10px center;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: 'Inter', sans-serif;
}

.dropdown-select:focus {
    outline: none;
    border-color: var(--data-blue-primary);
}

/* ---- Auth Pages (Login/Signup/Setup) ---- */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ui-page-bg);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: #FFFFFF;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.1);
    padding: 40px 36px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo .logo-block {
    display: inline-block;
    background: var(--brand-primary);
    border-radius: 10px;
    padding: 14px 20px 10px;
}

.auth-logo .logo-vistaar {
    display: block;
    font-size: 22px;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.auth-logo .logo-news {
    display: inline-block;
    background: var(--brand-navy);
    color: #FFFFFF;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    padding: 2px 10px;
    margin-top: 5px;
    border-radius: 3px;
}

.auth-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 6px;
}

.auth-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 28px;
}

.auth-form .form-group {
    margin-bottom: 18px;
}

.auth-form .btn {
    width: 100%;
    padding: 12px;
    font-size: 15px;
    margin-top: 4px;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--data-blue-primary);
    font-weight: 600;
}

/* ---- Copyable Text Field ---- */
.copy-field {
    display: flex;
    gap: 8px;
    align-items: center;
}

.copy-field input {
    flex: 1;
    padding: 8px 12px;
    font-size: 12px;
    font-family: monospace;
    border: 1px solid var(--ui-card-border);
    border-radius: 6px;
    background: #F9FAFB;
    color: var(--text-secondary);
}

/* ---- Modal ---- */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: #FFFFFF;
    border-radius: 16px;
    max-width: 600px;
    width: 90%;
    padding: 32px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.2);
    position: relative;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-light);
    font-size: 20px;
}

.modal-close:hover {
    color: var(--text-secondary);
}

.modal-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
}

/* ---- Hamburger (mobile) ---- */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger svg {
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
}

/* ---- Responsive ---- */
@media (max-width: 1279px) {
    .sidebar {
        width: var(--sidebar-collapsed);
    }
    .sidebar .nav-item span,
    .sidebar .nav-section-label,
    .sidebar-logo .logo-tagline,
    .sidebar-footer .user-name,
    .sidebar-footer .user-role,
    .sidebar .live-indicator span {
        display: none;
    }
    .sidebar-logo .logo-block {
        padding: 8px 10px 6px;
    }
    .sidebar-logo .logo-vistaar { font-size: 12px; letter-spacing: 1px; }
    .sidebar-logo .logo-news { font-size: 8px; padding: 2px 6px; letter-spacing: 2px; }
    .nav-item { justify-content: center; padding: 10px; }
    .main-content { margin-left: var(--sidebar-collapsed); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .sidebar .nav-item span,
    .sidebar .nav-section-label,
    .sidebar-footer .user-name,
    .sidebar-footer .user-role,
    .sidebar .live-indicator span {
        display: inline;
    }
    .sidebar-logo .logo-tagline {
        display: block;
        margin-top: 8px;
    }
    .sidebar-logo .logo-vistaar { font-size: 20px; letter-spacing: 3px; }
    .sidebar-logo .logo-news { font-size: 11px; padding: 3px 12px; letter-spacing: 4px; }
    .sidebar-logo .logo-block { padding: 12px 16px 8px; }
    .nav-item { justify-content: flex-start; padding: 10px 20px; }
    .main-content { margin-left: 0; }
    .hamburger { display: block; }
    .grid-4, .grid-3, .grid-2, .grid-2-1 {
        grid-template-columns: 1fr;
    }
    .content-area { padding: 16px; }
    .topbar { padding: 0 16px; }
}

/* ---- Utility ---- */
.mt-0 { margin-top: 0; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 13px; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.w-full { width: 100%; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

/* ============================================================
   DARK MODE
   ============================================================ */
[data-theme="dark"] {
    --ui-page-bg: #111827;
    --ui-card-bg: #1F2937;
    --ui-card-border: #374151;
    --ui-card-shadow: 0 1px 3px rgba(0,0,0,0.3);
    --ui-topbar-bg: #1F2937;
    --ui-sidebar-bg: #0B1120;
    --ui-sidebar-active: #1E3A5F;
    --ui-sidebar-hover: #162A4A;

    --text-primary: #F9FAFB;
    --text-secondary: #D1D5DB;
    --text-muted: #9CA3AF;
    --text-light: #6B7280;

    --status-green-bg: #064E3B;
    --status-green-text: #6EE7B7;
    --status-yellow-bg: #78350F;
    --status-yellow-text: #FCD34D;
    --status-red-bg: #7F1D1D;
    --status-red-text: #FCA5A5;
    --status-blue-bg: #1E3A5F;
    --status-blue-text: #93C5FD;
}

/* Body & page */
[data-theme="dark"] body {
    background: var(--ui-page-bg);
    color: var(--text-primary);
}

/* Topbar */
[data-theme="dark"] .topbar {
    background: var(--ui-topbar-bg);
    border-bottom-color: var(--ui-card-border);
}

/* Cards */
[data-theme="dark"] .card,
[data-theme="dark"] .tweet-card {
    background: var(--ui-card-bg);
    border-color: var(--ui-card-border);
}

/* Tables */
[data-theme="dark"] .data-table thead th {
    background: #111827;
    color: var(--text-muted);
    border-bottom-color: var(--ui-card-border);
}
[data-theme="dark"] .data-table tbody td {
    border-bottom-color: #374151;
    color: var(--text-secondary);
}
[data-theme="dark"] .data-table tbody tr:hover {
    background: #111827;
}
[data-theme="dark"] .data-table tbody tr:nth-child(even) {
    background: rgba(255,255,255,0.02);
}

/* Forms */
[data-theme="dark"] .form-input {
    background: #111827;
    border-color: var(--ui-card-border);
    color: var(--text-primary);
}
[data-theme="dark"] .form-input:focus {
    border-color: var(--data-blue-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.2);
}
[data-theme="dark"] .form-input::placeholder {
    color: #6B7280;
}

/* Dropdown */
[data-theme="dark"] .dropdown-select {
    background-color: #111827;
    border-color: var(--ui-card-border);
    color: var(--text-primary);
}

/* Buttons */
[data-theme="dark"] .btn-outline {
    border-color: var(--ui-card-border);
    color: var(--text-secondary);
}
[data-theme="dark"] .btn-outline:hover {
    background: #111827;
    border-color: var(--text-muted);
}
[data-theme="dark"] .topbar-btn {
    border-color: var(--ui-card-border);
    color: var(--text-secondary);
}

/* Alerts */
[data-theme="dark"] .alert-danger { background: var(--status-red-bg); color: var(--status-red-text); }
[data-theme="dark"] .alert-success { background: var(--status-green-bg); color: var(--status-green-text); }
[data-theme="dark"] .alert-warning { background: var(--status-yellow-bg); color: var(--status-yellow-text); }
[data-theme="dark"] .alert-info { background: var(--status-blue-bg); color: var(--status-blue-text); }

/* Tab bar */
[data-theme="dark"] .tab-bar {
    border-bottom-color: var(--ui-card-border);
}

/* Copy field */
[data-theme="dark"] .copy-field input {
    background: #111827;
    border-color: var(--ui-card-border);
    color: var(--text-secondary);
}

/* Modal */
[data-theme="dark"] .modal {
    background: var(--ui-card-bg);
}

/* KPI progress track */
[data-theme="dark"] .kpi-progress {
    background: #374151;
}

/* Scrollbar dark */
[data-theme="dark"] ::-webkit-scrollbar-thumb { background: #4B5563; }
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover { background: #6B7280; }

/* Theme toggle button */
.theme-toggle {
    padding: 6px 10px;
}
.theme-toggle svg {
    display: block;
}