:root {
    /* Professional Color Palette - Matching Index Page */
    --pro-primary: #14b8a6;    /* Teal Primary */
    --pro-secondary: #0d9488;  /* Teal Secondary */
    --pro-success: #059669;    /* Emerald */
    --pro-info: #0ea5e9;       /* Sky Blue */
    --pro-warning: #f59e0b;    /* Amber */
    --pro-danger: #dc2626;     /* Red */
    --pro-light: #f8fafc;      /* Slate 50 */
    --pro-dark: #0f172a;       /* Slate 900 */
    --pro-accent: #99f6e4;     /* Teal 200 */
    --pro-gray: #64748b;       /* Slate 500 */
}

/* Main Layout */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--pro-light);
    color: var(--pro-dark);
}

/* Navigation */
.navbar {
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--pro-primary) !important;
}

/* Sidebar */
.sidebar {
    background-color: white;
    box-shadow: 2px 0 5px rgba(0,0,0,0.05);
}

.sidebar .nav-link {
    color: var(--pro-gray);
    padding: 0.8rem 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    margin: 0.2rem 0.5rem;
}

.sidebar .nav-link:hover {
    background-color: rgba(20, 184, 166, 0.1);
    color: var(--pro-primary);
}

.sidebar .nav-link.active {
    background-color: var(--pro-primary);
    color: white;
}

/* Cards */
.card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.card-header {
    background: white;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 1.25rem;
    border-radius: 0.75rem 0.75rem 0 0;
}

/* Buttons */
.btn {
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--pro-primary);
    border-color: var(--pro-primary);
}

.btn-primary:hover {
    background-color: var(--pro-secondary);
    border-color: var(--pro-secondary);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Stats Cards */
.stat-box {
    background: linear-gradient(135deg, var(--pro-primary), var(--pro-secondary));
    color: white;
    border-radius: 0.75rem;
    padding: 1.5rem;
}

.stat-box .icon {
    opacity: 0.8;
}

/* Tables */
.table {
    background: white;
    border-radius: 0.75rem;
}

.table thead th {
    background-color: rgba(20, 184, 166, 0.05);
    color: var(--pro-dark);
    font-weight: 600;
    border-bottom: 2px solid rgba(20, 184, 166, 0.1);
}

/* Forms */
.form-control {
    border-radius: 0.5rem;
    border: 1px solid rgba(0,0,0,0.1);
    padding: 0.75rem 1rem;
}

.form-control:focus {
    border-color: var(--pro-primary);
    box-shadow: 0 0 0 2px rgba(20, 184, 166, 0.2);
}

/* Badges */
.badge {
    padding: 0.5em 0.75em;
    font-weight: 500;
    border-radius: 0.375rem;
}

/* List Group Styles */
.list-group-item {
    background-color: white;
    border: 1px solid rgba(0,0,0,0.1);
    margin-bottom: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.list-group-item.bg-dark {
    background-color: white !important;
    color: var(--pro-dark);
}

.list-group-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.list-group-item-action:hover {
    background-color: rgba(20, 184, 166, 0.05);
}

.list-group-item .badge {
    font-weight: 500;
}

.list-group-item .btn-outline-primary {
    border-color: var(--pro-primary);
    color: var(--pro-primary);
}

.list-group-item .btn-outline-primary:hover {
    background-color: var(--pro-primary);
    color: white;
}

.list-group-item small {
    color: var(--pro-gray);
}

/* Auth Cards (Login/Register) */
.card.bg-dark {
    background-color: white !important;
    border: 1px solid rgba(0,0,0,0.1);
}

.card.bg-dark .card-header {
    color: var(--pro-dark);
    background-color: rgba(20, 184, 166, 0.05);
}

.card.bg-dark .card-body {
    color: var(--pro-dark);
}

.card.bg-dark label {
    color: var(--pro-dark);
}

.card.bg-dark .text-muted {
    color: var(--pro-gray) !important;
}