/* ==========================================================
   PollSurvey — Modern UI
   ========================================================== */

:root {
    --ps-primary: #1e3a8a;
    --ps-primary-light: #3b5bdb;
    --ps-accent: #f59e0b;
    --ps-accent-dark: #d97706;
    --ps-success: #16a34a;
    --ps-danger: #dc2626;
    --ps-bg: #f4f6fb;
    --ps-card: #ffffff;
    --ps-border: #e5e7eb;
    --ps-text: #0f172a;
    --ps-muted: #64748b;
    --ps-sidebar-bg: #0f172a;
    --ps-sidebar-text: #cbd5e1;
    --ps-sidebar-active: #1e3a8a;
    --ps-shadow: 0 1px 3px rgba(15, 23, 42, 0.06),
                 0 4px 16px rgba(15, 23, 42, 0.06);
    --ps-radius: 12px;
}

[data-bs-theme="dark"] {
    --ps-bg: #0b1220;
    --ps-card: #111a2e;
    --ps-border: #1e293b;
    --ps-text: #e2e8f0;
    --ps-muted: #94a3b8;
    --ps-sidebar-bg: #060b17;
    --ps-shadow: 0 1px 3px rgba(0, 0, 0, 0.4),
                 0 4px 16px rgba(0, 0, 0, 0.3);
}

* { box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont,
                 'Segoe UI', Roboto, sans-serif;
    background: var(--ps-bg);
    color: var(--ps-text);
    font-size: 14px;
    margin: 0;
    transition: background 0.2s, color 0.2s;
}

/* ==========================================================
   LAYOUT
   ========================================================== */

.ps-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: 100vh;
}

.ps-sidebar {
    background: var(--ps-sidebar-bg);
    color: var(--ps-sidebar-text);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.ps-sidebar-brand {
    padding: 20px 22px;
    font-weight: 700;
    font-size: 1.05rem;
    color: #fff;
    letter-spacing: 0.01em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 10px;
}

.ps-sidebar-brand i {
    color: var(--ps-accent);
    font-size: 1.4rem;
}

.ps-sidebar-nav {
    flex: 1;
    padding: 14px 10px;
    list-style: none;
    margin: 0;
}

.ps-sidebar-nav .ps-nav-section {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #64748b;
    padding: 16px 14px 6px;
    font-weight: 600;
}

.ps-sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 10px 14px;
    border-radius: 8px;
    color: var(--ps-sidebar-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2px;
    transition: background 0.15s, color 0.15s;
}

.ps-sidebar-nav a:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
}

.ps-sidebar-nav a.active {
    background: var(--ps-sidebar-active);
    color: #fff;
}

.ps-sidebar-nav a i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.ps-sidebar-user {
    padding: 14px 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.82rem;
}

.ps-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--ps-primary-light);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* Topbar */
.ps-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 28px;
    background: var(--ps-card);
    border-bottom: 1px solid var(--ps-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.ps-topbar h1 {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0;
    color: var(--ps-text);
}

.ps-topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ps-icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--ps-border);
    background: transparent;
    color: var(--ps-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s;
}

.ps-icon-btn:hover {
    background: var(--ps-bg);
    color: var(--ps-primary);
}

.ps-main {
    padding: 24px 28px 40px;
    max-width: 1400px;
    width: 100%;
}

/* ==========================================================
   CARDS
   ========================================================== */

.ps-card {
    background: var(--ps-card);
    border: 1px solid var(--ps-border);
    border-radius: var(--ps-radius);
    box-shadow: var(--ps-shadow);
    padding: 20px;
    transition: transform 0.15s, box-shadow 0.15s;
}

.ps-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.ps-card-title {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ps-muted);
    font-weight: 600;
    margin: 0;
}

/* KPI stat cards */
.ps-kpi {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    position: relative;
    overflow: hidden;
}

.ps-kpi-value {
    font-size: 1.9rem;
    font-weight: 700;
    line-height: 1.1;
    margin: 6px 0 2px;
    color: var(--ps-text);
}

.ps-kpi-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ps-muted);
    font-weight: 600;
}

.ps-kpi-sub {
    font-size: 0.78rem;
    color: var(--ps-muted);
    margin-top: 4px;
}

.ps-kpi-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}

.ps-kpi-icon.blue { background: rgba(30, 58, 138, 0.1); color: #1e3a8a; }
.ps-kpi-icon.amber { background: rgba(245, 158, 11, 0.12); color: #d97706; }
.ps-kpi-icon.green { background: rgba(22, 163, 74, 0.1); color: #16a34a; }
.ps-kpi-icon.red { background: rgba(220, 38, 38, 0.1); color: #dc2626; }
.ps-kpi-icon.purple { background: rgba(139, 92, 246, 0.1); color: #7c3aed; }
.ps-kpi-icon.slate { background: rgba(100, 116, 139, 0.12); color: #475569; }

/* ==========================================================
   TABLES
   ========================================================== */

.ps-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.88rem;
}

.ps-table thead th {
    background: var(--ps-bg);
    color: var(--ps-muted);
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--ps-border);
}

.ps-table tbody td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--ps-border);
    color: var(--ps-text);
    vertical-align: middle;
}

.ps-table tbody tr:last-child td { border-bottom: none; }

.ps-table tbody tr:hover { background: rgba(30, 58, 138, 0.03); }

[data-bs-theme="dark"] .ps-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.ps-table-card {
    background: var(--ps-card);
    border: 1px solid var(--ps-border);
    border-radius: var(--ps-radius);
    overflow: hidden;
    box-shadow: var(--ps-shadow);
}

/* ==========================================================
   BADGES & PILLS
   ========================================================== */

.ps-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    line-height: 1.6;
}

.ps-badge-success { background: rgba(22, 163, 74, 0.12); color: #15803d; }
.ps-badge-warning { background: rgba(245, 158, 11, 0.15); color: #b45309; }
.ps-badge-danger  { background: rgba(220, 38, 38, 0.12); color: #b91c1c; }
.ps-badge-info    { background: rgba(59, 130, 246, 0.12); color: #1d4ed8; }
.ps-badge-slate   { background: rgba(100, 116, 139, 0.12); color: #475569; }
.ps-badge-purple  { background: rgba(139, 92, 246, 0.12); color: #6d28d9; }

[data-bs-theme="dark"] .ps-badge-success { color: #4ade80; }
[data-bs-theme="dark"] .ps-badge-warning { color: #fbbf24; }
[data-bs-theme="dark"] .ps-badge-danger  { color: #f87171; }
[data-bs-theme="dark"] .ps-badge-info    { color: #60a5fa; }
[data-bs-theme="dark"] .ps-badge-slate   { color: #94a3b8; }
[data-bs-theme="dark"] .ps-badge-purple  { color: #a78bfa; }

/* ==========================================================
   BUTTONS
   ========================================================== */

.btn-ps-primary {
    background: var(--ps-primary);
    border: none;
    color: #fff;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: background 0.15s;
}

.btn-ps-primary:hover {
    background: var(--ps-primary-light);
    color: #fff;
}

.btn-ps-accent {
    background: var(--ps-accent);
    border: none;
    color: #111827;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 8px;
}

.btn-ps-accent:hover { background: var(--ps-accent-dark); color: #111827; }

.btn-ps-ghost {
    background: transparent;
    border: 1px solid var(--ps-border);
    color: var(--ps-text);
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 500;
}

.btn-ps-ghost:hover {
    background: var(--ps-bg);
    color: var(--ps-primary);
    border-color: var(--ps-primary);
}

/* ==========================================================
   PROGRESS BARS
   ========================================================== */

.ps-progress {
    height: 8px;
    border-radius: 999px;
    background: var(--ps-bg);
    overflow: hidden;
}

.ps-progress-bar {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--ps-primary), var(--ps-primary-light));
    transition: width 0.4s ease;
}

.ps-progress-bar.accent {
    background: linear-gradient(90deg, var(--ps-accent), var(--ps-accent-dark));
}

/* ==========================================================
   MISC
   ========================================================== */

.ps-page-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin: 0 0 4px;
    color: var(--ps-text);
}

.ps-page-sub {
    color: var(--ps-muted);
    font-size: 0.88rem;
    margin: 0;
}

.ps-divider {
    border-top: 1px solid var(--ps-border);
    margin: 18px 0;
}

a { text-decoration: none; }

.form-control, .form-select {
    border-radius: 8px;
    border-color: var(--ps-border);
    background: var(--ps-card);
    color: var(--ps-text);
    font-size: 0.9rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--ps-primary-light);
    box-shadow: 0 0 0 3px rgba(59, 91, 219, 0.15);
    background: var(--ps-card);
    color: var(--ps-text);
}

.form-label {
    font-weight: 500;
    font-size: 0.82rem;
    color: var(--ps-text);
    margin-bottom: 4px;
}

/* Alerts */
.alert {
    border-radius: 10px;
    border: none;
    font-size: 0.9rem;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--ps-border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--ps-muted); }

/* Mobile */
.ps-mobile-toggle {
    display: none;
}

@media (max-width: 900px) {
    .ps-layout { grid-template-columns: 1fr; }
    .ps-sidebar {
        position: fixed;
        left: -260px;
        z-index: 1050;
        width: 240px;
        transition: left 0.2s;
    }
    .ps-sidebar.open { left: 0; }
    .ps-mobile-toggle { display: inline-flex; }
    .ps-main { padding: 18px; }
}