.smooth-transition {
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift-subtle {
    transition: transform 150ms ease, box-shadow 150ms ease;
}

.hover-lift-subtle:hover {
    transform: translateY(-2px);
}


.focus-ring:focus {
    outline: 2px solid var(--primary-600);
    outline-offset: 2px;
}

.focus-ring:focus:not(:focus-visible) {
    outline: none;
}

.focus-ring:focus-visible {
    outline: 2px solid var(--primary-600);
    outline-offset: 2px;
}


.loading-skeleton {
    background: linear-gradient(
        90deg,
        var(--neutral-200) 0%,
        var(--neutral-100) 50%,
        var(--neutral-200) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

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

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--neutral-200);
    border-top-color: var(--primary-600);
    border-radius: 50%;
    animation: spinner-rotate 0.6s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner-lg {
    width: 60px;
    height: 60px;
    border-width: 4px;
}

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



.fade-in {
    animation: fade-in 400ms ease-out forwards;
}

@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in-up {
    animation: fade-in-up 500ms ease-out forwards;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-down {
    animation: fade-in-down 500ms ease-out forwards;
}

@keyframes fade-in-down {
    from {
        opacity: 0;
        transform: translateY(-16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}



.slide-in-right {
    animation: slide-in-right 400ms ease-out forwards;
}

@keyframes slide-in-right {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}



.progress-bar {
    height: 8px;
    background: var(--neutral-200);
    border-radius: 100px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-600);
    border-radius: 100px;
    transition: width 300ms ease;
}

.progress-indeterminate {
    position: relative;
    overflow: hidden;
}

.progress-indeterminate::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 40%;
    background: var(--primary-600);
    animation: progress-indeterminate 1.5s ease-in-out infinite;
}

@keyframes progress-indeterminate {
    0% {
        left: -40%;
    }
    100% {
        left: 100%;
    }
}


.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    font-size: var(--font-xs);
    font-weight: 600;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary {
    background: var(--primary-100);
    color: var(--primary-700);
}

.badge-success {
    background: var(--success-100, #d1fae5);
    color: var(--success-700, #047857);
}

.badge-warning {
    background: var(--warning-100, #fef3c7);
    color: var(--warning-700, #b45309);
}

.badge-error {
    background: var(--error-100, #fee2e2);
    color: var(--error-700, #b91c1c);
}

.badge-neutral {
    background: var(--neutral-100);
    color: var(--neutral-700);
}



.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 12px;
    background: var(--neutral-900);
    color: white;
    font-size: var(--font-xs);
    font-weight: 500;
    white-space: nowrap;
    border-radius: var(--radius-md);
    opacity: 0;
    pointer-events: none;
    transition: opacity 150ms ease;
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
}



.divider {
    height: 1px;
    background: var(--neutral-200);
    margin: var(--spacing-xl) 0;
}

.divider-vertical {
    width: 1px;
    height: 100%;
    background: var(--neutral-200);
}

.divider-thick {
    height: 2px;
    background: var(--neutral-300);
}

.divider-gradient {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neutral-300), transparent);
}



.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.alert-info {
    background: #eff6ff;
    border-color: var(--info);
    color: #1e40af;
}

.alert-success {
    background: #f0fdf4;
    border-color: var(--success);
    color: #166534;
}

.alert-warning {
    background: #fffbeb;
    border-color: var(--warning);
    color: #92400e;
}

.alert-error {
    background: #fef2f2;
    border-color: var(--error);
    color: #991b1b;
}


.card {
    background: white;
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.card-hover {
    transition: all 200ms ease;
}

.card-hover:hover {
    border-color: var(--neutral-300);
    box-shadow: var(--shadow-md);
}

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

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



.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--neutral-900);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: var(--font-base);
    color: var(--neutral-900);
    background: white;
    border: 1.5px solid var(--neutral-300);
    border-radius: var(--radius-md);
    transition: all 150ms ease;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--neutral-400);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-600);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input.error {
    border-color: var(--error);
}

.form-input.error:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-help {
    display: block;
    font-size: var(--font-sm);
    color: var(--neutral-600);
    margin-top: var(--spacing-xs);
}

.form-error {
    display: block;
    font-size: var(--font-sm);
    color: var(--error);
    margin-top: var(--spacing-xs);
}



.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    border-bottom: 2px solid var(--neutral-200);
}

.table th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--neutral-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--neutral-200);
    font-size: var(--font-sm);
}

.table tbody tr {
    transition: background 150ms ease;
}

.table tbody tr:hover {
    background: var(--neutral-50);
}



.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 992px) {
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}



.mt-0 { margin-top: 0; }
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.pt-0 { padding-top: 0; }
.pt-sm { padding-top: var(--spacing-sm); }
.pt-md { padding-top: var(--spacing-md); }
.pt-lg { padding-top: var(--spacing-lg); }

.pb-0 { padding-bottom: 0; }
.pb-sm { padding-bottom: var(--spacing-sm); }
.pb-md { padding-bottom: var(--spacing-md); }
.pb-lg { padding-bottom: var(--spacing-lg); }

.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.text-primary { color: var(--primary-600); }
.text-neutral { color: var(--neutral-600); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }

.bg-primary { background: var(--primary-600); }
.bg-neutral { background: var(--neutral-100); }
.bg-white { background: white; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.uppercase { text-transform: uppercase; }

.border { border: 1px solid var(--neutral-200); }
.border-t { border-top: 1px solid var(--neutral-200); }
.border-b { border-bottom: 1px solid var(--neutral-200); }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: 9999px; }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.hide-mobile { display: block; }
.show-mobile { display: none; }

@media (max-width: 768px) {
    .hide-mobile { display: none; }
    .show-mobile { display: block; }
}