/* shadcn/ui inspired components v2.0 */
/* Unified component library with CSS variables */

/* ========================================
   Base Reset
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-fg);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Cards
   ======================================== */
.card {
    background: var(--color-card);
    color: var(--color-card-fg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.card-header {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
}

.card-body {
    padding: var(--spacing-4);
}

.card-footer {
    padding: var(--spacing-4);
    border-top: 1px solid var(--color-border);
}

.card-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
}

.card-description {
    font-size: var(--text-sm);
    color: var(--color-muted-fg);
}

/* ========================================
   Buttons - shadcn/ui style
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    height: 2.5rem;
    padding: 0 var(--spacing-4);
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    line-height: 1;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition:
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    outline: none;
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button Sizes */
.btn-sm {
    height: 2rem;
    padding: 0 var(--spacing-3);
    font-size: var(--text-xs);
}

.btn-lg {
    height: 2.75rem;
    padding: 0 var(--spacing-6);
    font-size: var(--text-base);
}

.btn-icon {
    width: 2.5rem;
    padding: 0;
}

.btn-icon.btn-sm {
    width: 2rem;
}

.btn-icon.btn-lg {
    width: 2.75rem;
}

/* Primary - Default dark button */
.btn-primary {
    background: var(--color-primary);
    color: var(--color-primary-fg);
}

.btn-primary:hover:not(:disabled) {
    background: hsl(var(--primary) / 0.9);
}

/* Secondary - Subtle background */
.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-secondary-fg);
}

.btn-secondary:hover:not(:disabled) {
    background: hsl(var(--secondary) / 0.8);
}

/* Outline - Border only */
.btn-outline {
    background: transparent;
    color: var(--color-fg);
    border-color: var(--color-border);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-accent);
    color: var(--color-accent-fg);
}

/* Ghost - Minimal */
.btn-ghost {
    background: transparent;
    color: var(--color-fg);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--color-accent);
    color: var(--color-accent-fg);
}

/* Destructive - Red for dangerous actions */
.btn-destructive,
.btn-danger {
    background: var(--color-destructive);
    color: var(--color-destructive-fg);
}

.btn-destructive:hover:not(:disabled),
.btn-danger:hover:not(:disabled) {
    background: hsl(var(--destructive) / 0.9);
}

/* Success - Green */
.btn-success {
    background: var(--color-success);
    color: hsl(var(--success-foreground));
}

.btn-success:hover:not(:disabled) {
    background: hsl(var(--success) / 0.9);
}

/* Warning - Amber */
.btn-warning {
    background: var(--color-warning);
    color: hsl(var(--warning-foreground));
}

.btn-warning:hover:not(:disabled) {
    background: hsl(var(--warning) / 0.9);
}

/* Outline variants */
.btn-outline-primary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline-primary:hover:not(:disabled) {
    background: var(--color-primary);
    color: var(--color-primary-fg);
}

.btn-outline-secondary {
    background: transparent;
    color: var(--color-muted-fg);
    border-color: var(--color-border);
}

.btn-outline-secondary:hover:not(:disabled) {
    background: var(--color-secondary);
}

.btn-outline-destructive,
.btn-outline-danger {
    background: transparent;
    color: var(--color-destructive);
    border-color: var(--color-destructive);
}

.btn-outline-destructive:hover:not(:disabled),
.btn-outline-danger:hover:not(:disabled) {
    background: var(--color-destructive);
    color: var(--color-destructive-fg);
}

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

.btn-outline-success:hover:not(:disabled) {
    background: var(--color-success);
    color: hsl(var(--success-foreground));
}

/* ========================================
   Form Controls
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-4);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-fg);
}

.form-control {
    display: block;
    width: 100%;
    height: 2.5rem;
    padding: var(--spacing-2) var(--spacing-3);
    font-family: inherit;
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    color: var(--color-fg);
    background: var(--color-bg);
    border: 1px solid var(--color-input);
    border-radius: var(--radius);
    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-ring);
    box-shadow: 0 0 0 2px hsl(var(--ring) / 0.2);
}

.form-control:disabled {
    background: var(--color-muted);
    opacity: 0.5;
    cursor: not-allowed;
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%2371717a' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right var(--spacing-3) center;
    background-size: 16px 12px;
    padding-right: var(--spacing-10);
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
    height: auto;
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.form-check-input {
    width: 1rem;
    height: 1rem;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-helper {
    margin-top: var(--spacing-1);
    font-size: var(--text-xs);
    color: var(--color-muted-fg);
}

.form-error {
    margin-top: var(--spacing-1);
    font-size: var(--text-xs);
    color: var(--color-destructive);
}

/* ========================================
   Badges
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem var(--spacing-2);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    line-height: 1.4;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

/* Default badge - subtle */
.badge-default {
    background: var(--color-secondary);
    color: var(--color-secondary-fg);
}

/* Primary badge */
.badge-primary {
    background: var(--color-primary);
    color: var(--color-primary-fg);
}

/* Success badge - green */
.badge-success {
    background: hsl(var(--success) / 0.15);
    color: hsl(142 76% 30%);
}

.dark .badge-success {
    background: hsl(var(--success) / 0.2);
    color: hsl(142 76% 50%);
}

/* Warning badge - amber */
.badge-warning {
    background: hsl(var(--warning) / 0.15);
    color: hsl(38 92% 35%);
}

.dark .badge-warning {
    background: hsl(var(--warning) / 0.2);
    color: hsl(38 92% 60%);
}

/* Danger/Destructive badge - red */
.badge-danger,
.badge-destructive {
    background: hsl(var(--destructive) / 0.15);
    color: hsl(0 84% 45%);
}

.dark .badge-danger,
.dark .badge-destructive {
    background: hsl(var(--destructive) / 0.2);
    color: hsl(0 84% 65%);
}

/* Info badge - blue */
.badge-info {
    background: hsl(var(--info) / 0.15);
    color: hsl(217 91% 50%);
}

.dark .badge-info {
    background: hsl(var(--info) / 0.2);
    color: hsl(217 91% 65%);
}

/* Outline badges */
.badge-outline {
    background: transparent;
    color: var(--color-fg);
    border: 1px solid var(--color-border);
}

/* ========================================
   Tables
   ======================================== */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.table thead th {
    padding: var(--spacing-3);
    text-align: left;
    font-weight: var(--font-medium);
    font-size: var(--text-xs);
    color: var(--color-muted-fg);
    border-bottom: 1px solid var(--color-border);
}

.table tbody td {
    padding: var(--spacing-3);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-fg);
}

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

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

/* Responsive Table */
@media (max-width: 768px) {
    .table thead {
        display: none;
    }

    .table tbody {
        display: block;
    }

    .table tbody tr {
        display: block;
        margin-bottom: var(--spacing-3);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        background: var(--color-card);
    }

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

    .table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-2) var(--spacing-3);
        border-bottom: 1px solid var(--color-border);
        text-align: right;
    }

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

    .table tbody td::before {
        content: attr(data-label);
        font-weight: var(--font-medium);
        color: var(--color-muted-fg);
        font-size: var(--text-xs);
        text-align: left;
        flex: 1;
        padding-right: var(--spacing-3);
    }
}

/* ========================================
   Modal
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-modal);
    display: none;
    width: 100%;
    height: 100%;
    overflow: hidden;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
    width: 100%;
    height: 100%;
    background-color: hsl(var(--background) / 0.8);
    backdrop-filter: blur(4px);
}

.modal-dialog {
    position: relative;
    width: 100%;
    max-width: 32rem;
    margin: var(--spacing-4);
}

.modal-content {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-height: calc(100vh - var(--spacing-8));
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-fg);
    margin: 0;
}

.modal-close {
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: none;
    border-radius: var(--radius);
    background: transparent;
    color: var(--color-muted-fg);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast);
}

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

.modal-body {
    padding: var(--spacing-4);
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-2);
    padding: var(--spacing-4);
    border-top: 1px solid var(--color-border);
}

/* Modal sizes */
.modal-content-sm {
    max-width: 24rem;
}

.modal-content-lg {
    max-width: 44rem;
}

.modal-content-xl {
    max-width: 56rem;
}

/* ========================================
   Alert / Notification
   ======================================== */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.alert-icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: var(--font-medium);
    margin-bottom: var(--spacing-1);
}

.alert-description {
    font-size: var(--text-sm);
    color: var(--color-muted-fg);
}

.alert-default {
    background: var(--color-card);
}

.alert-success {
    background: hsl(var(--success) / 0.1);
    border-color: hsl(var(--success) / 0.3);
}

.alert-success .alert-icon {
    color: var(--color-success);
}

.alert-warning {
    background: hsl(var(--warning) / 0.1);
    border-color: hsl(var(--warning) / 0.3);
}

.alert-warning .alert-icon {
    color: var(--color-warning);
}

.alert-destructive,
.alert-danger {
    background: hsl(var(--destructive) / 0.1);
    border-color: hsl(var(--destructive) / 0.3);
}

.alert-destructive .alert-icon,
.alert-danger .alert-icon {
    color: var(--color-destructive);
}

/* ========================================
   Status Indicator (Unified)
   ======================================== */
.status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
}

.status-dot {
    width: var(--status-size);
    height: var(--status-size);
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.status-online .status-dot,
.status-success .status-dot {
    background: var(--color-success);
}

.status-offline .status-dot,
.status-error .status-dot {
    background: var(--color-destructive);
}

.status-warning .status-dot {
    background: var(--color-warning);
}

.status-idle .status-dot,
.status-pending .status-dot {
    background: var(--color-muted-fg);
}

/* Pulsing animation for active status */
.status-pulse .status-dot {
    animation: pulse 2s infinite;
}

/* ========================================
   Utilities - Text
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }

.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

.text-primary { color: var(--color-fg); }
.text-secondary { color: var(--color-muted-fg); }
.text-muted { color: var(--color-muted-fg); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-destructive); }
.text-info { color: var(--color-info); }

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ========================================
   Utilities - Background
   ======================================== */
.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-muted { background-color: var(--color-muted); }
.bg-success { background-color: var(--color-success); }
.bg-warning { background-color: var(--color-warning); }
.bg-danger { background-color: var(--color-destructive); }

/* ========================================
   Utilities - Display & Flex
   ======================================== */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.d-grid { display: grid; }

.flex-column { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }

/* Legacy aliases */
.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-end { justify-content: flex-end; }

/* ========================================
   Utilities - Spacing
   ======================================== */
.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }

/* Legacy aliases */
.gap-xs { gap: var(--spacing-1); }
.gap-sm { gap: var(--spacing-2); }
.gap-md { gap: var(--spacing-4); }
.gap-lg { gap: var(--spacing-6); }

.w-full { width: 100%; }
.h-full { height: 100%; }
.w-100 { width: 100%; }
.h-100 { height: 100%; }

.m-0 { margin: 0; }
.mt-auto { margin-top: auto; }
.mb-auto { margin-bottom: auto; }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

.p-0 { padding: 0; }
.p-2 { padding: var(--spacing-2); }
.p-3 { padding: var(--spacing-3); }
.p-4 { padding: var(--spacing-4); }

/* ========================================
   Utilities - Border & Radius
   ======================================== */
.border { border: 1px solid var(--color-border); }
.border-t { border-top: 1px solid var(--color-border); }
.border-b { border-bottom: 1px solid var(--color-border); }
.border-l { border-left: 1px solid var(--color-border); }
.border-r { border-right: 1px solid var(--color-border); }
.border-0 { border: none; }

.rounded { border-radius: var(--radius); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* ========================================
   Accessibility
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-primary-fg);
    padding: var(--spacing-3) var(--spacing-4);
    text-decoration: none;
    font-weight: var(--font-semibold);
    z-index: 100;
    border-radius: 0 0 var(--radius) 0;
    transition: top var(--transition-fast);
}

.skip-to-content:focus {
    top: 0;
}

/* Focus visible */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--color-ring);
    outline-offset: 2px;
}

/* Touch target size */
@media (hover: none) and (pointer: coarse) {
    button,
    a,
    input[type="checkbox"],
    input[type="radio"],
    select {
        min-height: 44px;
        min-width: 44px;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --color-border: hsl(0 0% 50%);
    }

    .btn,
    .form-control,
    .card {
        border-width: 2px;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ========================================
   Skeleton Loading
   ======================================== */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-muted) 25%,
        hsl(var(--muted) / 0.5) 50%,
        var(--color-muted) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius);
}

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

.skeleton-text {
    height: 1rem;
    width: 100%;
    margin-bottom: var(--spacing-1);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
}

.skeleton-button {
    height: 40px;
    width: 100px;
}

.skeleton-card {
    height: 200px;
    width: 100%;
    border-radius: var(--radius-lg);
}

@media (prefers-reduced-motion: reduce) {
    .skeleton {
        animation: none;
        background: var(--color-muted);
    }
}

/* ========================================
   Empty State
   ======================================== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-12) var(--spacing-4);
    text-align: center;
    min-height: 300px;
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-4);
    color: var(--color-muted-fg);
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-fg);
    margin-bottom: var(--spacing-2);
}

.empty-state-description {
    font-size: var(--text-sm);
    color: var(--color-muted-fg);
    max-width: 24rem;
}

.empty-state-action {
    margin-top: var(--spacing-4);
}

/* ========================================
   Admin Page Utilities
   ======================================== */

/* Search and Filter */
.search-input {
    max-width: 300px;
}

.filter-select {
    max-width: 200px;
}

/* Card Title */
.card-title {
    margin: 0;
    font-size: var(--text-lg);
    font-weight: 600;
}

/* Margin Bottom */
.mb-2xl {
    margin-bottom: var(--spacing-2xl);
}

/* Button Close Icon */
.btn-close-icon {
    padding: var(--spacing-xs);
}