/* Modern Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-weight: 500;
    font-size: 0.875rem;
    line-height: 1.25rem;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    gap: 0.5rem;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: var(--text-on-primary) !important;
    box-shadow: 0 1px 3px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--color-primary) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
    background-color: var(--bg-surface);
    border-color: var(--border-color);
    color: var(--text-main);
}

.btn-secondary:hover {
    background-color: var(--bg-surface-hover);
    border-color: var(--text-muted);
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    background-color: var(--bg-surface-hover);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-ghost {
    background-color: transparent;
    border-color: transparent;
    color: var(--text-muted);
}

.btn-ghost:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-main);
}

.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.8125rem;
    border-radius: var(--radius-md);
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    border-radius: var(--radius-xl);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Modern Card Styles */
.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    border: none;
    overflow: hidden;
    transition: box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-card-hover);
}

.card-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body {
    padding: var(--spacing-xl);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--bg-surface-hover);
    border-top: 1px solid var(--border-light);
}

/* Modern Form Styles */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: var(--spacing-sm);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-main);
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

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

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

.form-control:focus {
    outline: none;
    border-color: var(--border-focus);
    background-color: var(--bg-surface);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-control:disabled {
    background-color: var(--bg-surface-hover);
    cursor: not-allowed;
    opacity: 0.6;
}

.form-control-lg {
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border-radius: var(--radius-xl);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

.form-error {
    font-size: 0.75rem;
    color: var(--color-error);
    margin-top: var(--spacing-xs);
}

/* Modern Input with Icon */
.input-icon-wrapper {
    position: relative;
}

.input-icon-wrapper .iconify {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 1.125rem;
    pointer-events: none;
    transition: color var(--transition-fast);
}

.input-icon-wrapper .form-control {
    padding-left: 2.75rem;
}

.input-icon-wrapper .form-control:focus + .iconify,
.input-icon-wrapper .form-control:not(:placeholder-shown) + .iconify {
    color: var(--color-primary);
}

/* Modern Alert Styles */
.alert {
    padding: 0.875rem 1rem;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    line-height: 1.5;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.08);
    color: #059669;
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.08);
    color: #dc2626;
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.08);
    color: #d97706;
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.08);
    color: #2563eb;
}

/* Modern Badge Styles */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    line-height: 1;
}

.badge-primary {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

.badge-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

/* Modern Table Styles */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-lg);
}

.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.875rem;
}

.table th,
.table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.table th {
    background-color: var(--bg-surface-hover);
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.table tbody tr:hover {
    background-color: var(--bg-surface-hover);
}

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

/* Modern 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;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    backdrop-filter: blur(4px);
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: var(--bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-main);
    margin: 0;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

/* Modern Switch/Toggle */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: var(--transition-normal);
    border-radius: var(--radius-full);
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition-normal);
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

input:checked + .slider {
    background-color: var(--color-primary);
}

input:checked + .slider:before {
    transform: translateX(20px);
}

input:focus + .slider {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* Modern Avatar */
.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    overflow: hidden;
    background-color: var(--bg-surface-hover);
    font-weight: 600;
    color: var(--text-muted);
}

.avatar-sm {
    width: 2rem;
    height: 2rem;
    font-size: 0.75rem;
}

.avatar-md {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 0.875rem;
}

.avatar-lg {
    width: 3.5rem;
    height: 3.5rem;
    font-size: 1.125rem;
}

.avatar-xl {
    width: 5rem;
    height: 5rem;
    font-size: 1.5rem;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Modern Divider */
.divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-lg) 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--border-color);
}

.divider span {
    padding: 0 var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Modern Skeleton Loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-surface-hover) 25%,
        var(--border-color) 50%,
        var(--bg-surface-hover) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Modern Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
}

.empty-state-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto var(--spacing-md);
    color: var(--text-light);
}

.empty-state-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: var(--spacing-sm);
}

.empty-state-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}