/* D4-Hub Design System — Data-Dense Dashboard */

/* === Design Tokens === */
:root {
    /* Colors - Light */
    --color-primary: #1E40AF;
    --color-primary-hover: #1E3A8A;
    --color-on-primary: #FFFFFF;
    --color-secondary: #3B82F6;
    --color-accent: #D97706;
    --color-background: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-foreground: #1E293B;
    --color-foreground-muted: #64748B;
    --color-muted: #F1F5F9;
    --color-border: #E2E8F0;
    --color-destructive: #DC2626;
    --color-success: #16A34A;
    --color-warning: #D97706;
    --color-ring: #1E40AF;

    /* Typography */
    --font-sans: 'Fira Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Fira Code', monospace;
    --text-xs: 0.75rem;
    --text-sm: 0.8125rem;
    --text-base: 0.9375rem;
    --text-lg: 1.125rem;
    --text-xl: 1.5rem;
    --text-2xl: 1.875rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;

    /* Layout */
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 64px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08);
    --transition: 200ms ease;
}

/* Dark mode */
[data-theme="dark"] {
    --color-primary: #3B82F6;
    --color-primary-hover: #60A5FA;
    --color-on-primary: #FFFFFF;
    --color-secondary: #60A5FA;
    --color-accent: #FBBF24;
    --color-background: #0F172A;
    --color-surface: #1E293B;
    --color-foreground: #F1F5F9;
    --color-foreground-muted: #94A3B8;
    --color-muted: #334155;
    --color-border: #334155;
    --color-destructive: #EF4444;
    --color-success: #22C55E;
    --color-warning: #FBBF24;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.4);
}

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

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--color-foreground);
    background: var(--color-background);
    display: flex;
    min-height: 100vh;
}

/* === Sidebar === */
.sidebar {
    width: var(--sidebar-width);
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    transition: width var(--transition);
    overflow: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .countdown-label,
.sidebar.collapsed .nav-divider { display: none; }

.sidebar.collapsed .countdown-number { font-size: var(--text-lg); }
.sidebar.collapsed .sidebar-header { justify-content: center; }
.sidebar.collapsed .nav-item { justify-content: center; padding-left: 0; }

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.logo { display: flex; align-items: center; gap: var(--space-2); }
.sidebar-logo { width: 36px; height: 36px; object-fit: contain; }
.mobile-logo { width: 32px; height: 32px; object-fit: contain; }
.logo-icon { width: 32px; height: 32px; }
.logo-icon-sm { width: 28px; height: 28px; }
.logo-icon-lg { width: 56px; height: 56px; }
.logo-text {
    font-weight: 300;
    font-size: var(--text-lg);
    color: var(--color-foreground-muted);
}
.logo-text.large { font-size: var(--text-xl); }

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--color-foreground-muted);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    transition: color var(--transition);
}
.sidebar-toggle:hover { color: var(--color-foreground); }

.countdown {
    text-align: center;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
}
.countdown-number {
    display: block;
    font-family: var(--font-mono);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-accent);
}
.countdown-label {
    font-size: var(--text-xs);
    color: var(--color-foreground-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-3) var(--space-2);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    color: var(--color-foreground-muted);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 500;
    transition: all var(--transition);
    cursor: pointer;
}
.nav-item:hover {
    background: var(--color-muted);
    color: var(--color-foreground);
}
.nav-item.active {
    background: color-mix(in srgb, var(--color-primary) 10%, transparent);
    color: var(--color-primary);
}
.nav-item svg { flex-shrink: 0; }
.nav-divider { border-top: 1px solid var(--color-border); margin: var(--space-2) 0; }
.nav-logout:hover { color: var(--color-destructive); }

/* === Main Content === */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: var(--space-6);
    max-width: 100%;
    transition: margin-left var(--transition);
}
.main-content.sidebar-collapsed { margin-left: var(--sidebar-collapsed-width); }
.main-content.full-width { margin-left: 0; }

/* === Page Header === */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
    gap: var(--space-3);
}
.page-header h1 {
    font-size: var(--text-xl);
    font-weight: 700;
}
.page-subtitle {
    font-size: var(--text-sm);
    color: var(--color-foreground-muted);
}
.header-actions { display: flex; gap: var(--space-2); }

/* === KPI Cards === */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}
.kpi-grid-3 { grid-template-columns: repeat(3, 1fr); }
.kpi-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    box-shadow: var(--shadow-sm);
}
.kpi-wide { grid-column: span 2; }
.kpi-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.kpi-speakers { background: #DBEAFE; color: #1E40AF; }
.kpi-sponsors { background: #FEF3C7; color: #92400E; }
.kpi-registrations { background: #D1FAE5; color: #065F46; }
.kpi-abstracts { background: #EDE9FE; color: #5B21B6; }
.kpi-budget { background: #F1F5F9; color: #475569; }
[data-theme="dark"] .kpi-speakers { background: #1E3A5F; color: #93C5FD; }
[data-theme="dark"] .kpi-sponsors { background: #451A03; color: #FCD34D; }
[data-theme="dark"] .kpi-registrations { background: #064E3B; color: #6EE7B7; }
[data-theme="dark"] .kpi-abstracts { background: #4C1D95; color: #C4B5FD; }
[data-theme="dark"] .kpi-budget { background: #334155; color: #94A3B8; }
.kpi-content { display: flex; flex-direction: column; }
.kpi-value {
    font-family: var(--font-mono);
    font-size: var(--text-xl);
    font-weight: 700;
    line-height: 1.2;
}
.kpi-label { font-size: var(--text-xs); color: var(--color-foreground-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.kpi-sub { font-size: var(--text-xs); color: var(--color-foreground-muted); }

/* === Cards === */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-4);
}
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}
.card-header h2 { font-size: var(--text-base); font-weight: 600; }
.card-body { padding: var(--space-4); }

/* === Grid Layouts === */
.grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

/* === Filter Bar === */
.filter-bar {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}
.filter-chip {
    padding: var(--space-1) var(--space-3);
    border-radius: 999px;
    font-size: var(--text-xs);
    font-weight: 500;
    text-decoration: none;
    color: var(--color-foreground-muted);
    background: var(--color-muted);
    border: 1px solid transparent;
    transition: all var(--transition);
    cursor: pointer;
}
.filter-chip:hover { border-color: var(--color-border); color: var(--color-foreground); }
.filter-chip.active {
    background: color-mix(in srgb, var(--color-primary) 10%, transparent);
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.filter-divider { color: var(--color-border); }
.search-form { display: flex; }
.search-input {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    background: var(--color-surface);
    color: var(--color-foreground);
    width: 200px;
}

/* === Data Table === */
.table-container { overflow-x: auto; }
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}
.data-table th {
    text-align: left;
    padding: var(--space-2) var(--space-3);
    font-weight: 600;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-foreground-muted);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}
.data-table td {
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}
.data-table tbody tr:hover { background: var(--color-muted); }
.data-table td strong { font-weight: 600; }
.cell-number { font-family: var(--font-mono); text-align: right; white-space: nowrap; }
.cell-wrap { max-width: 300px; }
.cell-actions { white-space: nowrap; display: flex; gap: var(--space-1); }
.inline { display: inline; }

/* Clickable rows open the detail modal; internal buttons stop propagation */
.sponsor-row { cursor: pointer; }
.sponsor-row:hover { background: var(--color-muted); }

/* Keep the Actions column visible even when the table scrolls horizontally (iPad etc.) */
.data-table th:last-child,
.cell-actions-sticky {
    position: sticky;
    right: 0;
    background: var(--color-surface);
    box-shadow: -4px 0 6px -4px rgba(0, 0, 0, 0.12);
    z-index: 2;
}
.data-table tbody tr:hover .cell-actions-sticky { background: var(--color-muted); }

/* === Sponsor Detail Modal === */
.sponsor-detail .detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3) var(--space-4);
}
.sponsor-detail .detail-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: var(--space-3);
    align-items: baseline;
    padding: var(--space-1) 0;
}
.sponsor-detail .detail-row-full { grid-column: 1 / -1; }
.sponsor-detail .detail-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-foreground-muted);
}
.sponsor-detail .detail-value {
    font-size: var(--text-sm);
    color: var(--color-foreground);
    word-break: break-word;
}
.sponsor-detail .detail-section-header {
    grid-column: 1 / -1;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-foreground-muted);
    padding-top: var(--space-3);
    margin-top: var(--space-2);
    border-top: 1px solid var(--color-border);
}
@media (min-width: 768px) {
    .sponsor-detail .detail-grid { grid-template-columns: 1fr 1fr; }
}

/* === Badges === */
.badge {
    display: inline-block;
    padding: 2px var(--space-2);
    border-radius: 999px;
    font-size: var(--text-xs);
    font-weight: 600;
    white-space: nowrap;
}
.badge-confirmed, .badge-accepted { background: #D1FAE5; color: #065F46; }
.badge-pre-confirmed { background: #DBEAFE; color: #1E40AF; }
.badge-interested { background: #FEF3C7; color: #92400E; }
.badge-contacted, .badge-submitted, .badge-pending { background: #F1F5F9; color: #475569; }
.badge-invited { background: #EDE9FE; color: #5B21B6; }
.badge-declined, .badge-rejected, .badge-not-interested { background: #FEE2E2; color: #991B1B; }
.badge-cancelled, .badge-withdrawn { background: #F1F5F9; color: #94A3B8; }
.badge-wishlist { background: #F5F3FF; color: #7C3AED; }
.badge-standby { background: #FFF7ED; color: #C2410C; }
.badge-under-review { background: #FEF3C7; color: #92400E; }
.badge-income { background: #D1FAE5; color: #065F46; }
.badge-expense { background: #FEE2E2; color: #991B1B; }
.badge-paid { background: #D1FAE5; color: #065F46; }

[data-theme="dark"] .badge-confirmed, [data-theme="dark"] .badge-accepted { background: #064E3B; color: #6EE7B7; }
[data-theme="dark"] .badge-pre-confirmed { background: #1E3A5F; color: #93C5FD; }
[data-theme="dark"] .badge-interested { background: #451A03; color: #FCD34D; }
[data-theme="dark"] .badge-contacted, [data-theme="dark"] .badge-submitted, [data-theme="dark"] .badge-pending { background: #334155; color: #94A3B8; }
[data-theme="dark"] .badge-invited { background: #4C1D95; color: #C4B5FD; }
[data-theme="dark"] .badge-declined, [data-theme="dark"] .badge-rejected, [data-theme="dark"] .badge-not-interested { background: #7F1D1D; color: #FCA5A5; }
[data-theme="dark"] .badge-wishlist { background: #4C1D95; color: #DDD6FE; }
[data-theme="dark"] .badge-standby { background: #7C2D12; color: #FDBA74; }
[data-theme="dark"] .badge-income { background: #064E3B; color: #6EE7B7; }
[data-theme="dark"] .badge-expense { background: #7F1D1D; color: #FCA5A5; }

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 500;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-foreground);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}
.btn:hover { background: var(--color-muted); }
.btn-primary {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-sm { padding: var(--space-1) var(--space-2); font-size: var(--text-xs); }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--color-muted); }
.btn-danger { color: var(--color-destructive); }
.btn-danger:hover { background: #FEE2E2; }
[data-theme="dark"] .btn-danger:hover { background: #7F1D1D; }
.btn-full { width: 100%; justify-content: center; }

/* === Forms === */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}
.form-group { display: flex; flex-direction: column; gap: var(--space-1); }
.form-group.span-2 { grid-column: span 2; }
.form-group label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-foreground-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    background: var(--color-surface);
    color: var(--color-foreground);
    transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 15%, transparent);
}
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-2);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}
.checkbox-label {
    flex-direction: row !important;
    align-items: center !important;
    gap: var(--space-2) !important;
}

/* === Auth === */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--space-4);
}
.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}
.auth-logo { margin-bottom: var(--space-2); }
.auth-subtitle {
    color: var(--color-foreground-muted);
    font-size: var(--text-sm);
    margin-bottom: var(--space-6);
}
.auth-form { text-align: left; }
.auth-form .form-group { margin-bottom: var(--space-4); }
.auth-form .btn { margin-top: var(--space-2); }

/* === Flash Messages === */
.flash-container { margin-bottom: var(--space-4); }
.flash {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    margin-bottom: var(--space-2);
    transition: all 300ms ease;
}
.flash-success { background: #D1FAE5; color: #065F46; border: 1px solid #A7F3D0; }
.flash-error { background: #FEE2E2; color: #991B1B; border: 1px solid #FECACA; }
.flash-info { background: #DBEAFE; color: #1E40AF; border: 1px solid #BFDBFE; }
[data-theme="dark"] .flash-success { background: #064E3B; color: #6EE7B7; border-color: #065F46; }
[data-theme="dark"] .flash-error { background: #7F1D1D; color: #FCA5A5; border-color: #991B1B; }
[data-theme="dark"] .flash-info { background: #1E3A5F; color: #93C5FD; border-color: #1E40AF; }
.flash-close {
    background: none;
    border: none;
    font-size: var(--text-lg);
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
}
.flash-close:hover { opacity: 1; }

/* === Modal === */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 640px;
    max-height: 90vh;
    overflow-y: auto;
}
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}
.modal-header h3 { font-size: var(--text-lg); font-weight: 600; }
.modal-close {
    background: none;
    border: none;
    font-size: var(--text-xl);
    cursor: pointer;
    color: var(--color-foreground-muted);
    padding: var(--space-1);
}
.modal-close:hover { color: var(--color-foreground); }
.modal-body { padding: var(--space-4); }
body.modal-open { overflow: hidden; }

/* === Pipeline === */
.pipeline { display: flex; flex-direction: column; gap: var(--space-3); }
.pipeline-item { display: flex; align-items: center; gap: var(--space-3); }
.pipeline-bar { flex: 1; display: flex; align-items: center; gap: var(--space-2); }
.pipeline-status { font-size: var(--text-xs); font-weight: 600; min-width: 100px; }
.pipeline-count {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: var(--text-lg);
}
.pipeline-amount {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-foreground-muted);
}
.pipeline-overview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}
.pipeline-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    text-align: center;
    border-top: 3px solid var(--color-border);
}
.pipeline-confirmed { border-top-color: var(--color-success); }
.pipeline-pre-confirmed { border-top-color: var(--color-primary); }
.pipeline-interested { border-top-color: var(--color-accent); }
.pipeline-contacted { border-top-color: var(--color-foreground-muted); }
.pipeline-not-interested { border-top-color: var(--color-destructive); }
.pipeline-card-count { font-family: var(--font-mono); font-size: var(--text-xl); font-weight: 700; display: block; }
.pipeline-card-label { font-size: var(--text-xs); color: var(--color-foreground-muted); display: block; }
.pipeline-card-amount { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-foreground-muted); display: block; }

/* === List (compact) === */
.list-compact { display: flex; flex-direction: column; }
.list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-border);
}
.list-item:last-child { border-bottom: none; }
.list-item-main { display: flex; flex-direction: column; }
.list-item-main strong { font-size: var(--text-sm); }

/* === Timeline === */
.timeline-card { margin-bottom: var(--space-4); overflow: hidden; }
.timeline-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition);
}
@media (min-width: 768px) {
    .timeline-item {
        flex-direction: row;
        align-items: flex-start;
        gap: var(--space-4);
    }
}
.timeline-item:hover { background: var(--color-muted); }
.timeline-item:last-child { border-bottom: none; }
.timeline-time {
    display: flex;
    flex-direction: column;
    min-width: 60px;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 500;
}
.time-end { font-size: var(--text-xs); color: var(--color-foreground-muted); }
.timeline-content { flex: 1; }
.timeline-header { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }
.timeline-actions { display: flex; gap: var(--space-1); align-self: flex-end; }
@media (min-width: 768px) {
    .timeline-actions { align-self: flex-start; }
}
.slot-type-badge {
    font-size: var(--text-xs);
    font-weight: 600;
    padding: 1px var(--space-2);
    border-radius: 999px;
}
.slot-talk { background: #DBEAFE; color: #1E40AF; }
.slot-keynote { background: #FEF3C7; color: #92400E; }
.slot-panel { background: #EDE9FE; color: #5B21B6; }
.slot-break, .slot-networking { background: #D1FAE5; color: #065F46; }
.slot-workshop { background: #FCE7F3; color: #9D174D; }
.slot-industry { background: #F1F5F9; color: #475569; }
.slot-ceremony { background: #FEF3C7; color: #92400E; }

/* === Deadline Grid === */
.deadline-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-3);
}
.deadline-item {
    text-align: center;
    padding: var(--space-3);
    border-radius: var(--radius-sm);
    background: var(--color-muted);
}
.deadline-date {
    display: block;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: var(--text-base);
}
.deadline-label {
    font-size: var(--text-xs);
    color: var(--color-foreground-muted);
}
.deadline-past { opacity: 0.5; text-decoration: line-through; }

/* === Budget Bars === */
.budget-bar-item { margin-bottom: var(--space-3); }
.budget-bar-label {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-sm);
    margin-bottom: var(--space-1);
}
.budget-bar {
    height: 8px;
    background: var(--color-muted);
    border-radius: 999px;
    overflow: hidden;
}
.budget-bar-fill {
    height: 100%;
    border-radius: 999px;
    transition: width 500ms ease;
}
.budget-bar-income { background: var(--color-success); }
.budget-bar-expense { background: var(--color-destructive); }

/* === Registration Counters === */
.reg-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}
.reg-description {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
    color: var(--color-foreground-muted);
    border-bottom: 1px solid var(--color-border);
    line-height: 1.4;
}
.reg-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-4);
    border-bottom: 1px solid var(--color-border);
}
.reg-row:last-child { border-bottom: none; }
.reg-info { display: flex; flex-direction: column; gap: 1px; }
.reg-label { font-size: var(--text-sm); font-weight: 500; }
.reg-price { font-size: var(--text-xs); color: var(--color-foreground-muted); font-family: var(--font-mono); }
.reg-counter {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}
.counter-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-foreground-muted);
    cursor: pointer;
    transition: all var(--transition);
}
.counter-btn:hover { background: var(--color-muted); color: var(--color-foreground); border-color: var(--color-foreground-muted); }
.counter-btn:active { transform: scale(0.92); }
.counter-value {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: var(--text-lg);
    min-width: 36px;
    text-align: center;
}
/* reg-grid responsive handled in mobile-first block */

/* === Kanban Board === */
.kanban {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    min-height: 400px;
}
.kanban-column {
    background: var(--color-muted);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    min-height: 300px;
    min-width: 0;
    overflow: hidden;
    transition: background var(--transition);
}
.kanban-column.drag-over { background: color-mix(in srgb, var(--color-primary) 8%, var(--color-muted)); }
.kanban-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-3);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--color-border);
}
.kanban-title { font-weight: 600; font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.05em; }
.kanban-count {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0 var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    font-family: var(--font-mono);
}
.kanban-cards { display: flex; flex-direction: column; gap: var(--space-2); }

/* Task Card */
.task-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-3);
    cursor: grab;
    transition: box-shadow var(--transition), transform var(--transition);
    border-left: 3px solid var(--color-border);
}
.task-card:hover { box-shadow: var(--shadow-md); }
.task-card.dragging { opacity: 0.5; transform: rotate(2deg); }
.task-card.priority-urgent { border-left-color: var(--color-destructive); }
.task-card.priority-high { border-left-color: var(--color-warning); }
.task-card.priority-medium { border-left-color: var(--color-secondary); }
.task-card.priority-low { border-left-color: var(--color-foreground-muted); }

.task-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-1);
}
.task-category {
    font-size: var(--text-xs);
    color: var(--color-foreground-muted);
    background: var(--color-muted);
    padding: 1px var(--space-2);
    border-radius: 999px;
}
.priority-dot-urgent, .priority-dot-high, .priority-dot-medium, .priority-dot-low {
    width: 8px; height: 8px; border-radius: 50%; display: inline-block;
}
.priority-dot-urgent { background: var(--color-destructive); }
.priority-dot-high { background: var(--color-warning); }
.priority-dot-medium { background: var(--color-secondary); }
.priority-dot-low { background: var(--color-foreground-muted); }

.task-card-title { font-weight: 600; font-size: var(--text-sm); margin-bottom: var(--space-1); word-wrap: break-word; overflow-wrap: break-word; }
.task-card-desc { font-size: var(--text-xs); color: var(--color-foreground-muted); margin-bottom: var(--space-2); line-height: 1.4; word-wrap: break-word; overflow-wrap: break-word; }
.task-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xs);
    color: var(--color-foreground-muted);
    margin-bottom: var(--space-2);
}
.task-card-meta svg { vertical-align: -2px; margin-right: 2px; }
.task-assignee, .task-due { display: flex; align-items: center; gap: 2px; }
.task-due.overdue { color: var(--color-destructive); font-weight: 600; }
.task-card-actions {
    display: flex;
    gap: var(--space-1);
    opacity: 0;
    transition: opacity var(--transition);
}
.task-card:hover .task-card-actions { opacity: 1; }

/* My Tasks View */
.my-task-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    border-left: 3px solid var(--color-border);
    transition: background var(--transition);
}
.my-task-item:hover { background: var(--color-muted); }
.my-task-item:last-child { border-bottom: none; }
.my-task-done { opacity: 0.5; }
.my-task-done strong { text-decoration: line-through; }
.priority-left-urgent { border-left-color: var(--color-destructive); }
.priority-left-high { border-left-color: var(--color-warning); }
.priority-left-medium { border-left-color: var(--color-secondary); }
.priority-left-low { border-left-color: var(--color-foreground-muted); }
.my-task-main { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.my-task-meta { display: flex; align-items: center; gap: var(--space-2); white-space: nowrap; }
.my-task-actions { display: flex; align-items: center; gap: var(--space-1); }

/* Nav badge */
.nav-badge {
    background: var(--color-accent);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 999px;
    margin-left: 4px;
}

/* User role badges */
.badge-admin { background: #EDE9FE; color: #5B21B6; }
.badge-user { background: #DBEAFE; color: #1E40AF; }
[data-theme="dark"] .badge-admin { background: #4C1D95; color: #C4B5FD; }
[data-theme="dark"] .badge-user { background: #1E3A5F; color: #93C5FD; }

/* Priority badges */
.badge-urgent { background: #FEE2E2; color: #991B1B; }
.badge-high { background: #FEF3C7; color: #92400E; }
.badge-medium { background: #DBEAFE; color: #1E40AF; }
.badge-low { background: #F1F5F9; color: #475569; }

/* Checkbox list (for sponsor assignment) */
.checkbox-list {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-2);
    margin: var(--space-3) 0;
}
.checkbox-row {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-sm);
    cursor: pointer;
    border-radius: var(--radius-sm);
}
.checkbox-row:hover { background: var(--color-muted); }
.package-grid {
    max-height: 280px;
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-2);
}

/* kanban responsive handled in mobile-first block */

/* === Mobile Cards (shown on mobile, hidden on desktop) === */
.mobile-cards { display: flex; flex-direction: column; gap: var(--space-3); }
.mobile-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    box-shadow: var(--shadow-sm);
}
.mobile-card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}
.mobile-card-main { display: flex; flex-direction: column; gap: 1px; flex: 1; min-width: 0; }
.mobile-card-main strong { word-wrap: break-word; }
.mobile-card-badges { display: flex; flex-wrap: wrap; gap: var(--space-1); margin-bottom: var(--space-2); }
.mobile-card-detail {
    font-size: var(--text-sm);
    color: var(--color-foreground);
    margin-bottom: var(--space-2);
    line-height: 1.4;
}
.mobile-card-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border);
}
.desktop-table { display: none; }

@media (min-width: 768px) {
    .mobile-cards { display: none; }
    .desktop-table { display: block; }
}

/* === Charts === */
.chart-container { position: relative; height: 260px; width: 100%; }

/* === Icon Buttons === */
.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--color-foreground-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}
.btn-icon:hover { background: var(--color-muted); color: var(--color-foreground); }
.btn-icon.btn-icon-danger:hover { background: #FEE2E2; color: var(--color-destructive); }
[data-theme="dark"] .btn-icon.btn-icon-danger:hover { background: #7F1D1D; color: #FCA5A5; }
.btn-icon svg { width: 16px; height: 16px; }

/* === Helpers === */
.text-muted { color: var(--color-foreground-muted); font-size: var(--text-sm); display: block; }
.text-sm { font-size: var(--text-xs); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-destructive); }
.empty-state {
    text-align: center;
    color: var(--color-foreground-muted);
    padding: var(--space-8) var(--space-4);
    font-style: italic;
}

/* === Status colors (pipeline text) === */
.status-confirmed { color: var(--color-success); }
.status-pre-confirmed { color: var(--color-primary); }
.status-interested { color: var(--color-accent); }
.status-contacted { color: var(--color-foreground-muted); }
.status-not-interested { color: var(--color-destructive); }

/* === Mobile Top Bar === */
.mobile-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-4);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 48px;
    z-index: 90;
}
.mobile-menu-btn {
    background: none;
    border: none;
    color: var(--color-foreground);
    cursor: pointer;
    padding: var(--space-1);
}
.mobile-countdown {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: var(--text-sm);
    color: var(--color-accent);
}
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 99;
}
.sidebar-overlay.active { display: block; }

/* === Responsive visibility === */
.desktop-only { display: none; }
.mobile-only { display: block; }

/* === Mobile-First: Base is mobile === */
.sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width);
    z-index: 100;
}
.sidebar.mobile-open { transform: translateX(0); }
.main-content {
    margin-left: 0 !important;
    padding: var(--space-4);
    padding-top: calc(48px + var(--space-4));
}
.main-content.full-width { padding-top: var(--space-4); }
.grid-2col { grid-template-columns: 1fr; }
.kpi-grid { grid-template-columns: 1fr; }
.kpi-grid-3 { grid-template-columns: 1fr; }
.kpi-wide { grid-column: span 1; }
.form-grid { grid-template-columns: 1fr; }
.form-group.span-2 { grid-column: span 1; }
.page-header { flex-direction: column; align-items: flex-start; }
.kanban { grid-template-columns: 1fr; }
.reg-grid { grid-template-columns: 1fr; }
.filter-bar { overflow-x: auto; flex-wrap: nowrap; padding-bottom: var(--space-1); }
.deadline-grid { grid-template-columns: 1fr 1fr; }

/* === Tablet and up (768px+) === */
@media (min-width: 768px) {
    .kpi-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
    .kpi-grid-3 { grid-template-columns: repeat(3, 1fr); }
    .form-grid { grid-template-columns: 1fr 1fr; }
    .form-group.span-2 { grid-column: span 2; }
    .grid-2col { grid-template-columns: 1fr 1fr; }
    .reg-grid { grid-template-columns: repeat(2, 1fr); }
    .page-header { flex-direction: row; align-items: center; }
    .filter-bar { flex-wrap: wrap; }
    .deadline-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
}

/* === Desktop (1024px+) === */
@media (min-width: 1024px) {
    .desktop-only { display: block; }
    .mobile-only { display: none; }
    .mobile-topbar { display: none; }
    .sidebar-overlay { display: none !important; }
    .sidebar { transform: translateX(0); }
    .sidebar.collapsed { width: var(--sidebar-collapsed-width); }
    .main-content {
        margin-left: var(--sidebar-width) !important;
        padding: var(--space-6);
        padding-top: var(--space-6);
    }
    .main-content.sidebar-collapsed { margin-left: var(--sidebar-collapsed-width) !important; }
    .main-content.full-width { margin-left: 0 !important; }
    .kpi-wide { grid-column: span 2; }
    .kanban { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* === Print === */
@media print {
    .sidebar, .btn, .filter-bar, .cell-actions, .flash-container { display: none !important; }
    .main-content { margin-left: 0 !important; padding: 0 !important; }
    .card { box-shadow: none; border: 1px solid #ddd; }
}

/* === Reduced motion === */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition-duration: 0ms !important; }
}