/* Global Styles */
:root {
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 0px;
    --header-height: 70px;
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    /* background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); */
    background-color: #343a40;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
}

.sidebar.show {
    transform: translateX(0);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
}

.sidebar-nav .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transform: translateX(5px);
}

.sidebar-nav .nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border-right: 3px solid white;
}

.sidebar-nav .nav-link i {
    margin-right: 0.75rem;
    font-size: 1.1rem;
}

/* Sidebar Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sidebar-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Main Content */
.main-content {
    margin-left: 0;
    transition: margin-left 0.3s ease;
    min-height: 100vh;
}

/* Header */
.main-header {
    background: white;
    padding: 1rem 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.sidebar-toggle {
    border: none;
    background: none;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.page-title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

.header-actions {
    display: flex;
    gap: 0.5rem;
}

/* Cards */
.card {
    border-radius: 0.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
}

/* Form Styles */
.form-control {
    border-radius: 0.375rem;
    border: 1px solid #ced4da;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Button Styles */
.btn {
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.15s ease-in-out;
}

.btn:hover {
    transform: translateY(-1px);
}

/* Table Styles */
.table {
    background: white;
}

.table th {
    border-top: none;
    font-weight: 600;
    color: var(--dark-color);
    background-color: var(--light-color);
}

.table-hover tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.05);
}

/* Badge Styles */
.badge {
    font-size: 0.75rem;
    padding: 0.35em 0.65em;
    border-radius: 0.375rem;
}

/* Utility Classes */
.text-xs {
    font-size: 0.75rem;
}

.font-weight-bold {
    font-weight: 700;
}

.text-gray-800 {
    color: #5a5c69;
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Responsive Design */
@media (min-width: 992px) {
    .sidebar {
        transform: translateX(0);
        position: fixed;
    }

    .main-content {
        margin-left: var(--sidebar-width);
    }

    .sidebar-overlay {
        display: none;
    }
}

@media (max-width: 768px) {
    .main-header {
        padding: 1rem;
    }

    .page-title {
        font-size: 1.25rem;
    }

    .container-fluid {
        padding: 1rem;
    }
}

/* Login Page Styles */
.login-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    max-width: 400px;
    width: 100%;
}

.login-header {
    text-align: center;
    padding: 2rem 2rem 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.login-body {
    padding: 2rem;
}

/* Password Toggle */
.password-toggle {
    position: relative;
}

.password-toggle .form-control {
    padding-right: 45px;
}

.password-toggle .toggle-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: none;
    color: var(--secondary-color);
    cursor: pointer;
}

/* Date and Time Picker Styles */
.flatpickr-calendar {
    border-radius: 0.5rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Error Page Styles */
.error-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
}

.error-content {
    text-align: center;
    max-width: 500px;
    padding: 2rem;
}

.error-code {
    font-size: 6rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.error-message {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}