:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --success: #22c55e;
    --success-dark: #16a34a;
    --danger: #ef4444;
    --danger-dark: #dc2626;
    --background: #f8fafc;
    --card: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --focus-ring: rgba(99, 102, 241, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background: var(--background);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2.5rem;
    background: var(--card);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
                0 2px 4px -2px rgba(0, 0, 0, 0.05);
}

.header h1 {
    color: var(--primary);
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Card Styles */
.card {
    background: var(--card);
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
                0 2px 4px -2px rgba(0, 0, 0, 0.05);
}

.card h3 {
    color: var(--primary);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.2s ease;
    color: var(--text);
}

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

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* Button Styles */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    line-height: 1;
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn i {
    font-size: 1rem;
}

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

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

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

.btn-success:hover {
    background: var(--success-dark);
}

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

.btn-danger:hover {
    background: var(--danger-dark);
}

/* Member Card Styles */
.member-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    background: var(--background);
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    transition: all 0.2s ease;
}

.member-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.member-info {
    flex-grow: 1;
}

.member-info strong {
    display: block;
    color: var(--text);
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.member-info small {
    color: var(--text-light);
    font-size: 0.9rem;
}

.member-actions {
    display: flex;
    gap: 0.75rem;
}

.member-actions .btn {
    padding: 0.5rem;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Table Styles */
.schedule-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 0.75rem;
    overflow: hidden;
    background: var(--background);
}

.schedule-table th,
.schedule-table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.schedule-table th {
    background: var(--primary);
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
}

.schedule-table tr:last-child td {
    border-bottom: none;
}

.schedule-table tbody tr {
    transition: all 0.2s ease;
}

.schedule-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.05);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background-color: var(--card);
    margin: 10% auto;
    padding: 2.5rem;
    border-radius: 1rem;
    max-width: 500px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
                0 8px 10px -6px rgba(0, 0, 0, 0.1);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-10%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close-modal {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    transition: all 0.2s ease;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
}

.close-modal:hover {
    background: var(--background);
    color: var(--text);
}

/* Toast Notification */
.toast {
    display: none;
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 2rem;
    background: var(--success);
    color: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    font-weight: 500;
    animation: toastSlideIn 0.3s ease-out;
}

@keyframes toastSlideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Error Message */
.error-message {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    font-weight: 500;
}

/* Buttons Container */
.buttons {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

/* Responsive Adjustments */
@media (max-width: 640px) {
    .container {
        padding: 1rem;
    }
    
    .header {
        padding: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .schedule-table th,
    .schedule-table td {
        padding: 0.75rem 1rem;
    }
    
    .modal-content {
        margin: 5% 1rem;
    }
    
    .buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Loading State */
.loading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1.5rem;
    height: 1.5rem;
    margin: -0.75rem 0 0 -0.75rem;
    border: 2px solid var(--primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Focus Styles for Accessibility */
:focus {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--card);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.navbar-brand img {
    height: 32px;
    width: auto;
}

.navbar-brand span {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
}

.navbar-menu {
    display: flex;
    align-items: center;
    margin-left: 2rem;
    gap: 1rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
}

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

.nav-link.active {
    color: var(--primary);
}

.navbar-end {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-profile {
    position: relative;
}

.profile-trigger {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.profile-trigger:hover {
    background: var(--primary-dark);
}

.profile-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--card);
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}

.profile-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.profile-menu-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

.profile-menu-header h4 {
    color: var(--text);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.profile-menu-header p {
    color: var(--text-light);
    font-size: 0.875rem;
}

.profile-menu-items {
    padding: 0.5rem 0;
}

.profile-menu-item {
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text);
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
}

.profile-menu-item:hover {
    background: var(--background);
    color: var(--primary);
}

.profile-menu-item i {
    font-size: 1rem;
    width: 1rem;
    text-align: center;
}

/* Add margin to main content to account for fixed navbar */
.main-content {
    margin-top: 64px;
    padding: 2rem;
}

@media (max-width: 768px) {
    .navbar-menu {
        display: none;
    }
    
    .navbar-brand span {
        font-size: 1.1rem;
    }
}