:root {
    --primary: #1e3a8a;
    --primary-dark: #172554;
    --primary-light: #3b82f6;
    --accent: #d97706;
    --accent-light: #f59e0b;
    --background: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.9);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

body {
    background-color: var(--background);
    color: var(--text-main);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Glassmorphism elements */
.glass-panel {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-md);
    border-radius: 12px;
}

/* Sidebar Styling */
.sidebar {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    min-height: 100vh;
    color: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-lg);
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.7);
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    margin: 0.2rem 0.6rem;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.sidebar .nav-link:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateX(4px);
}

.sidebar .nav-link.active {
    color: #ffffff;
    background-color: var(--accent);
    box-shadow: var(--shadow-sm);
}

.sidebar-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Premium Card Designs */
.metric-card {
    border-radius: 12px;
    border: none;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.metric-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary);
}

.metric-card.card-primary::after { background: var(--primary); }
.metric-card.card-accent::after { background: var(--accent); }
.metric-card.card-success::after { background: var(--success); }
.metric-card.card-warning::after { background: var(--warning); }
.metric-card.card-info::after { background: var(--info); }

.card-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

/* Dashboard Layout */
.main-content {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.top-navbar {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
}

/* Tables and Lists */
.table-responsive {
    border-radius: 8px;
    overflow: hidden;
}

.custom-table th {
    background-color: #f1f5f9;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
}

.custom-table td {
    vertical-align: middle;
}

/* Badges styling */
.badge-pending {
    background-color: #fef3c7;
    color: #d97706;
}

.badge-approved {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-rejected {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-hold {
    background-color: #e0f2fe;
    color: #0369a1;
}

/* Wizard / Step-by-step form for ProSoDoc */
.step-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    position: relative;
}

.step-container::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--border-color);
    z-index: 1;
}

.step-node {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: #ffffff;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    z-index: 2;
    transition: var(--transition-fast);
}

.step-node.active {
    border-color: var(--primary);
    background-color: var(--primary);
    color: #ffffff;
}

.step-node.completed {
    border-color: var(--success);
    background-color: var(--success);
    color: #ffffff;
}

/* Custom form elements */
.form-label {
    font-weight: 500;
    color: var(--text-main);
    font-size: 0.9rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* Buttons micro-animations */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    transition: var(--transition-fast);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-accent {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
    transition: var(--transition-fast);
}

.btn-accent:hover {
    background-color: #b45309;
    border-color: #b45309;
    color: #ffffff;
    transform: translateY(-1px);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animated-fade {
    animation: fadeIn var(--transition-normal) forwards;
}