:root {
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --bg-light: #F3F4F6;
    --text-dark: #1F2937;
    --text-muted: #6B7280;
    --card-bg: #FFFFFF;
    --border-color: #E5E7EB;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    display: flex;
    min-height: 100vh;
}

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

@keyframes slideInRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.page-content {
    animation: fadeIn 0.5s ease-out;
    padding: 2rem;
    width: 100%;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: var(--card-bg);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.sidebar-header {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 2rem;
    text-align: center;
}

.nav-link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-dark);
    text-decoration: none;
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    transition: background 0.2s, color 0.2s;
}

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

/* Cards & Layout */
.dashboard-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.card-title {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-dark);
    margin-top: 0.5rem;
}

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    border: none;
    cursor: pointer;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: background 0.2s, transform 0.1s;
}

.btn:active {
    transform: scale(0.95);
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }

.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* Toast */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 50;
}

.toast {
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    margin-bottom: 0.5rem;
    animation: slideInRight 0.3s ease-out;
    border-left: 4px solid var(--primary);
}

.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--danger); }

/* Tables */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background: white;
    border-radius: 0.5rem;
    overflow: hidden;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text-muted);
}

/* Badges */
.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-active { background: #D1FAE5; color: #065F46; }
.badge-pending { background: #FEF3C7; color: #92400E; animation: pulse 2s infinite; }
.badge-closed { background: #FEE2E2; color: #991B1B; }

/* Stars */
.star-rating {
    display: flex;
    flex-direction: row-reverse;
    justify-content: flex-end;
}
.star-rating input { display: none; }
.star-rating label {
    font-size: 2rem;
    color: #D1D5DB;
    cursor: pointer;
    transition: color 0.2s;
}
.star-rating input:checked ~ label,
.star-rating label:hover,
.star-rating label:hover ~ label {
    color: var(--warning);
}

/* Auth Card */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    width: 100%;
    background: linear-gradient(135deg, var(--bg-light) 0%, #E0E7FF 100%);
}

.auth-card {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    animation: fadeIn 0.6s ease-out;
}

/* Responsive Sidebar */
.hamburger {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .hamburger { display: block; }
    .sidebar {
        position: fixed;
        left: -250px;
        height: 100vh;
        z-index: 40;
    }
    .sidebar.open {
        transform: translateX(250px);
    }
    .dashboard-wrapper {
        margin-left: 0;
    }
}