:root {
    --ss-navy: #1B2A4A;
    --ss-navy-deep: #0F1D33;
    --ss-navy-light: #243B5E;
    --ss-blue: #3366FF;
    --ss-blue-light: #5580FF;
    --ss-blue-bg: rgba(51, 102, 255, 0.08);
    --ss-green: #2ECC71;
    --ss-green-dark: #27AE60;
    --ss-green-bg: rgba(46, 204, 113, 0.08);
    --ss-teal: #0EA5E9;
    --ss-teal-bg: rgba(14, 165, 233, 0.08);
    --ss-amber: #F59E0B;
    --ss-amber-bg: rgba(245, 158, 11, 0.08);
    --ss-red: #EF4444;
    --ss-red-bg: rgba(239, 68, 68, 0.08);
    --ss-purple: #8B5CF6;
    --ss-purple-bg: rgba(139, 92, 246, 0.08);
    --ss-text: #1E293B;
    --ss-text-secondary: #64748B;
    --ss-text-muted: #94A3B8;
    --ss-border: #E2E8F0;
    --ss-bg: #F0F4F8;
    --ss-card: #FFFFFF;
    --ss-sidebar-w: 260px;
    --ss-topbar-h: 60px;
    --ss-radius: 12px;
    --ss-radius-sm: 8px;
    --ss-radius-lg: 16px;
    --ss-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
    --ss-shadow-md: 0 4px 12px rgba(0,0,0,0.06);
    --ss-shadow-lg: 0 8px 24px rgba(0,0,0,0.08);
    --ss-transition: all 0.2s ease;
}

* { box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--ss-bg);
    color: var(--ss-text);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--ss-blue); text-decoration: none; transition: var(--ss-transition); }
a:hover { color: var(--ss-blue-light); }

.ss-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--ss-sidebar-w);
    height: 100vh;
    background: linear-gradient(180deg, var(--ss-navy-deep) 0%, var(--ss-navy) 100%);
    color: #fff;
    z-index: 1040;
    overflow-y: auto;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.ss-sidebar::-webkit-scrollbar { width: 4px; }
.ss-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 2px; }

.ss-sidebar-brand {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ss-sidebar-brand img {
    height: 38px;
    width: auto;
}

.ss-sidebar-nav {
    padding: 0.75rem 0;
    flex: 1;
}

.ss-nav-section {
    padding: 0.75rem 1.5rem 0.4rem;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: rgba(255,255,255,0.35);
    font-weight: 600;
    margin-top: 0.5rem;
}

.ss-nav-link {
    display: flex;
    align-items: center;
    padding: 0.55rem 1.5rem;
    color: rgba(255,255,255,0.65);
    text-decoration: none;
    transition: var(--ss-transition);
    border-left: 3px solid transparent;
    font-size: 0.85rem;
    font-weight: 450;
    gap: 0.75rem;
}

.ss-nav-link:hover {
    background: rgba(255,255,255,0.05);
    color: #fff;
}

.ss-nav-link.active {
    background: rgba(46, 204, 113, 0.1);
    color: #fff;
    border-left-color: var(--ss-green);
    font-weight: 500;
}

.ss-nav-link i {
    width: 20px;
    text-align: center;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.ss-sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.ss-topbar {
    position: fixed;
    top: 0;
    left: var(--ss-sidebar-w);
    right: 0;
    height: var(--ss-topbar-h);
    background: var(--ss-card);
    border-bottom: 1px solid var(--ss-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.75rem;
    z-index: 1030;
}

.ss-topbar-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ss-text);
    margin: 0;
}

.ss-topbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.ss-topbar-company {
    font-size: 0.8rem;
    color: var(--ss-text-secondary);
}

.ss-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8rem;
    color: #fff;
    background: linear-gradient(135deg, var(--ss-blue), var(--ss-green));
}

.ss-main {
    margin-left: var(--ss-sidebar-w);
    margin-top: var(--ss-topbar-h);
    min-height: calc(100vh - var(--ss-topbar-h));
    display: flex;
    flex-direction: column;
}

.ss-content {
    padding: 1.5rem 2rem;
    flex: 1;
}

.ss-footer {
    padding: 1rem 2rem;
    text-align: center;
    color: var(--ss-text-muted);
    font-size: 0.75rem;
    border-top: 1px solid var(--ss-border);
}

.ss-card {
    background: var(--ss-card);
    border-radius: var(--ss-radius);
    border: 1px solid var(--ss-border);
    box-shadow: var(--ss-shadow);
    transition: var(--ss-transition);
}

.ss-card:hover { box-shadow: var(--ss-shadow-md); }

.ss-card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--ss-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ss-card-header h5, .ss-card-header h6 {
    margin: 0;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--ss-text);
}

.ss-card-body { padding: 1.25rem; }

.ss-stat-card {
    background: var(--ss-card);
    border-radius: var(--ss-radius);
    border: 1px solid var(--ss-border);
    padding: 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    box-shadow: var(--ss-shadow);
    transition: var(--ss-transition);
}

.ss-stat-card:hover { box-shadow: var(--ss-shadow-md); transform: translateY(-1px); }

.ss-stat-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--ss-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.ss-stat-icon.blue { background: var(--ss-blue-bg); color: var(--ss-blue); }
.ss-stat-icon.green { background: var(--ss-green-bg); color: var(--ss-green); }
.ss-stat-icon.teal { background: var(--ss-teal-bg); color: var(--ss-teal); }
.ss-stat-icon.amber { background: var(--ss-amber-bg); color: var(--ss-amber); }
.ss-stat-icon.red { background: var(--ss-red-bg); color: var(--ss-red); }
.ss-stat-icon.purple { background: var(--ss-purple-bg); color: var(--ss-purple); }

.ss-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ss-text);
    line-height: 1.2;
}

.ss-stat-label {
    font-size: 0.78rem;
    color: var(--ss-text-secondary);
    margin-top: 0.15rem;
}

.ss-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.65rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.ss-badge.green { background: var(--ss-green-bg); color: var(--ss-green-dark); }
.ss-badge.blue { background: var(--ss-blue-bg); color: var(--ss-blue); }
.ss-badge.amber { background: var(--ss-amber-bg); color: #D97706; }
.ss-badge.red { background: var(--ss-red-bg); color: var(--ss-red); }
.ss-badge.teal { background: var(--ss-teal-bg); color: #0284C7; }
.ss-badge.purple { background: var(--ss-purple-bg); color: var(--ss-purple); }
.ss-badge.navy { background: rgba(27,42,74,0.08); color: var(--ss-navy); }

.ss-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.ss-table thead th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ss-text-secondary);
    border-bottom: 2px solid var(--ss-border);
    background: #F8FAFC;
}

.ss-table tbody td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--ss-border);
    color: var(--ss-text);
    vertical-align: middle;
}

.ss-table tbody tr:hover { background: #F8FAFC; }
.ss-table tbody tr:last-child td { border-bottom: none; }

.ss-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 1.25rem;
    border-radius: var(--ss-radius-sm);
    font-size: 0.875rem;
    font-weight: 550;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--ss-transition);
    text-decoration: none;
    line-height: 1.4;
}

.ss-btn-primary {
    background: var(--ss-blue);
    color: #fff;
    border-color: var(--ss-blue);
}
.ss-btn-primary:hover { background: var(--ss-blue-light); color: #fff; transform: translateY(-1px); }

.ss-btn-green {
    background: var(--ss-green);
    color: #fff;
    border-color: var(--ss-green);
}
.ss-btn-green:hover { background: var(--ss-green-dark); color: #fff; transform: translateY(-1px); }

.ss-btn-outline {
    background: transparent;
    color: var(--ss-text);
    border-color: var(--ss-border);
}
.ss-btn-outline:hover { border-color: var(--ss-blue); color: var(--ss-blue); }

.ss-btn-sm {
    padding: 0.35rem 0.85rem;
    font-size: 0.8rem;
}

.ss-btn-lg {
    padding: 0.75rem 1.75rem;
    font-size: 1rem;
}

.ss-form-label {
    font-size: 0.8rem;
    font-weight: 550;
    color: var(--ss-text);
    margin-bottom: 0.35rem;
    display: block;
}

.ss-form-control {
    width: 100%;
    padding: 0.55rem 0.85rem;
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius-sm);
    font-size: 0.875rem;
    color: var(--ss-text);
    background: var(--ss-card);
    transition: var(--ss-transition);
    font-family: inherit;
}

.ss-form-control:focus {
    outline: none;
    border-color: var(--ss-blue);
    box-shadow: 0 0 0 3px var(--ss-blue-bg);
}

.ss-form-control::placeholder { color: var(--ss-text-muted); }

.ss-form-select {
    width: 100%;
    padding: 0.55rem 0.85rem;
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius-sm);
    font-size: 0.875rem;
    color: var(--ss-text);
    background: var(--ss-card);
    transition: var(--ss-transition);
    font-family: inherit;
    appearance: auto;
}

.ss-form-select:focus {
    outline: none;
    border-color: var(--ss-blue);
    box-shadow: 0 0 0 3px var(--ss-blue-bg);
}

.ss-section-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ss-text);
    margin-bottom: 1rem;
}

.ss-page-header {
    margin-bottom: 1.5rem;
}

.ss-page-header h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--ss-text);
    margin: 0;
}

.ss-page-header p {
    font-size: 0.875rem;
    color: var(--ss-text-secondary);
    margin: 0.25rem 0 0;
}

.ss-alert {
    padding: 0.75rem 1rem;
    border-radius: var(--ss-radius-sm);
    font-size: 0.875rem;
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    margin-bottom: 0.75rem;
}

.ss-alert.green { background: var(--ss-green-bg); color: #166534; border: 1px solid rgba(46,204,113,0.2); }
.ss-alert.amber { background: var(--ss-amber-bg); color: #92400E; border: 1px solid rgba(245,158,11,0.2); }
.ss-alert.red { background: var(--ss-red-bg); color: #991B1B; border: 1px solid rgba(239,68,68,0.2); }
.ss-alert.blue { background: var(--ss-blue-bg); color: #1E40AF; border: 1px solid rgba(51,102,255,0.2); }

.ss-rating-a { color: #059669; background: rgba(5,150,105,0.1); }
.ss-rating-b { color: #0EA5E9; background: rgba(14,165,233,0.1); }
.ss-rating-c { color: #F59E0B; background: rgba(245,158,11,0.1); }
.ss-rating-d { color: #F97316; background: rgba(249,115,22,0.1); }
.ss-rating-e { color: #EF4444; background: rgba(239,68,68,0.1); }

.ss-progress {
    height: 6px;
    background: var(--ss-border);
    border-radius: 3px;
    overflow: hidden;
}

.ss-progress-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
}

.ss-empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--ss-text-secondary);
}

.ss-empty-state i {
    font-size: 2.5rem;
    color: var(--ss-text-muted);
    margin-bottom: 1rem;
    display: block;
}

.ss-empty-state p {
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
}

.ss-divider {
    border: none;
    border-top: 1px solid var(--ss-border);
    margin: 1.25rem 0;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.15rem;
    color: var(--ss-text);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.4);
    z-index: 1035;
}
.sidebar-overlay.show { display: block; }

@media (max-width: 991px) {
    .ss-sidebar { transform: translateX(-100%); }
    .ss-sidebar.show { transform: translateX(0); }
    .ss-topbar { left: 0; }
    .ss-main { margin-left: 0; }
    .sidebar-toggle { display: inline-block; }
    .ss-content { padding: 1rem; }
}

@media (max-width: 575px) {
    .ss-stat-value { font-size: 1.25rem; }
    .ss-content { padding: 0.75rem; }
}