/**
 * ============================================
 * JOODNESS COMPONENT LIBRARY
 * ============================================
 * Version: 1.0.0
 * Based on: COMPONENT_SPECS.md
 *
 * Dependencies: design-tokens.css (load first)
 * ============================================
 */

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-md);
    transition: var(--transition-all);
    cursor: pointer;
    text-decoration: none;
    border: none;
    line-height: 1;
}

.btn:focus-visible {
    outline: 2px solid var(--color-primary-500);
    outline-offset: 2px;
}

/* Button Sizes */
.btn-xs {
    height: 28px;
    padding: 0 var(--space-2);
    font-size: var(--text-xs);
}

.btn-sm {
    height: var(--btn-height-sm);
    padding: 0 var(--btn-padding-x-sm);
    font-size: var(--btn-font-size-sm);
}

.btn-md {
    height: var(--btn-height-md);
    padding: 0 var(--btn-padding-x-md);
    font-size: var(--btn-font-size-md);
}

.btn-lg {
    height: var(--btn-height-lg);
    padding: 0 var(--btn-padding-x-lg);
    font-size: var(--btn-font-size-lg);
}

.btn-xl {
    height: var(--btn-height-xl);
    padding: 0 var(--space-8);
    font-size: var(--text-lg);
}

/* Button Variants */
.btn-primary {
    background: var(--color-primary-500);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-600);
}

.btn-primary:active {
    background: var(--color-primary-700);
}

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

.btn-secondary:hover {
    background: var(--color-neutral-200);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary-500);
    color: var(--color-primary-500);
}

.btn-outline:hover {
    background: var(--color-primary-500);
    color: var(--color-white);
}

.btn-ghost {
    background: transparent;
    color: var(--color-primary-500);
}

.btn-ghost:hover {
    background: var(--color-primary-50);
}

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

.btn-danger:hover {
    background: #DC2626;
}

/* Button States */
.btn:disabled,
.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-loading {
    position: relative;
    color: transparent;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
}

/* Full Width Button */
.btn-block {
    width: 100%;
}

/* Button with Icon */
.btn-icon-only {
    padding: 0;
    width: var(--btn-height-md);
}

.btn-icon-only.btn-sm {
    width: var(--btn-height-sm);
}

.btn-icon-only.btn-lg {
    width: var(--btn-height-lg);
}

/* ============================================
   FORM INPUTS
   ============================================ */

.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1-5);
}

.form-label-required::after {
    content: '*';
    color: var(--color-error);
    margin-left: var(--space-1);
}

.form-input {
    width: 100%;
    height: var(--input-height-md);
    padding: 0 var(--input-padding-x);
    font-size: var(--text-base);
    color: var(--color-text-primary);
    background: var(--color-input-bg);
    border: 1px solid var(--color-input-border);
    border-radius: var(--input-border-radius);
    transition: var(--transition-colors), box-shadow var(--duration-150) var(--ease-in-out);
}

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

.form-input:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: var(--shadow-focus);
}

.form-input:disabled {
    background: var(--color-neutral-100);
    cursor: not-allowed;
    opacity: 0.7;
}

/* Input Sizes */
.form-input-sm {
    height: var(--input-height-sm);
    font-size: var(--text-sm);
    padding: 0 var(--space-3);
}

.form-input-lg {
    height: var(--input-height-lg);
    font-size: var(--text-lg);
    padding: 0 var(--space-5);
}

/* Input States */
.form-input-error {
    border-color: var(--color-error);
}

.form-input-error:focus {
    box-shadow: var(--shadow-focus-error);
}

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

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

.form-input-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-neutral-400);
    pointer-events: none;
}

.form-input-wrapper .form-input {
    padding-left: calc(var(--space-4) + 20px + var(--space-2));
}

/* Textarea */
.form-textarea {
    min-height: 120px;
    padding: var(--space-3) var(--input-padding-x);
    resize: vertical;
}

/* Helper Text */
.form-helper {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}

.form-error {
    font-size: var(--text-sm);
    color: var(--color-error);
    margin-top: var(--space-1);
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--card-border-radius);
    box-shadow: var(--card-shadow);
    overflow: hidden;
    transition: var(--transition-all);
}

.card-interactive:hover {
    border-color: var(--color-primary-500);
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-4px);
}

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

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

.card-footer {
    padding: var(--card-padding);
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg-secondary);
}

/* Card Variants */
.card-elevated {
    box-shadow: var(--shadow-lg);
}

.card-bordered {
    border-width: 2px;
}

.card-featured {
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 1px var(--color-primary-500);
}

/* Card Image */
.card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-500) var(--ease-out);
}

.card-interactive:hover .card-image img {
    transform: scale(1.05);
}

/* ============================================
   ALERTS
   ============================================ */

.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
}

.alert-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.alert-content {
    flex: 1;
}

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

.alert-dismiss {
    flex-shrink: 0;
    padding: var(--space-1);
    background: transparent;
    border: none;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity var(--duration-150) var(--ease-in-out);
}

.alert-dismiss:hover {
    opacity: 1;
}

/* Alert Variants */
.alert-success {
    background: var(--color-success-bg);
    color: #166534;
    border: 1px solid #BBF7D0;
}

.alert-error {
    background: var(--color-error-bg);
    color: #991B1B;
    border: 1px solid #FECACA;
}

.alert-warning {
    background: var(--color-warning-bg);
    color: #92400E;
    border: 1px solid #FDE68A;
}

.alert-info {
    background: var(--color-info-bg);
    color: #1E40AF;
    border: 1px solid #BFDBFE;
}

/* ============================================
   BADGES
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2-5);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Badge Variants */
.badge-primary {
    background: var(--color-primary-100);
    color: var(--color-primary-700);
}

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

.badge-success {
    background: var(--color-success-light);
    color: #166534;
}

.badge-warning {
    background: var(--color-warning-light);
    color: #92400E;
}

.badge-error {
    background: var(--color-error-light);
    color: #991B1B;
}

.badge-info {
    background: var(--color-info-light);
    color: #1E40AF;
}

/* Solid Badges */
.badge-solid-primary {
    background: var(--color-primary-500);
    color: var(--color-white);
}

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

.badge-solid-warning {
    background: var(--color-warning);
    color: var(--color-white);
}

.badge-solid-error {
    background: var(--color-error);
    color: var(--color-white);
}

/* Badge with Dot */
.badge-dot::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* ============================================
   MODALS
   ============================================ */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: var(--color-overlay);
    z-index: var(--z-modal-backdrop);
    animation: fadeIn var(--duration-200) var(--ease-out);
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-bg-elevated);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    z-index: var(--z-modal);
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: scaleIn var(--duration-200) var(--ease-out);
}

.modal-sm { width: 400px; max-width: 95vw; }
.modal-md { width: 560px; max-width: 95vw; }
.modal-lg { width: 720px; max-width: 95vw; }
.modal-xl { width: 960px; max-width: 95vw; }
.modal-full { width: 95vw; height: 90vh; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

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

.modal-close {
    padding: var(--space-2);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-muted);
    transition: var(--transition-colors);
}

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

.modal-body {
    padding: var(--space-6);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

/* ============================================
   PAGINATION
   ============================================ */

.pagination {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.pagination-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: var(--transition-all);
    cursor: pointer;
    text-decoration: none;
}

.pagination-item:hover:not(.pagination-active):not(.pagination-disabled) {
    border-color: var(--color-primary-500);
    color: var(--color-primary-500);
}

.pagination-active {
    background: var(--color-primary-500);
    border-color: var(--color-primary-500);
    color: var(--color-white);
}

.pagination-disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   SKELETON LOADERS
   ============================================ */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-neutral-200) 25%,
        var(--color-neutral-100) 50%,
        var(--color-neutral-200) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-default);
}

.skeleton-text {
    height: 1em;
    margin-bottom: var(--space-2);
}

.skeleton-title {
    height: 1.5em;
    width: 60%;
    margin-bottom: var(--space-3);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.skeleton-image {
    aspect-ratio: 16/9;
}

.skeleton-button {
    height: var(--btn-height-md);
    width: 120px;
}

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

/* ============================================
   PROGRESS BARS
   ============================================ */

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

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary-500) 0%, var(--color-primary-400) 100%);
    border-radius: var(--radius-full);
    transition: width var(--duration-500) var(--ease-out);
}

.progress-bar-success {
    background: linear-gradient(90deg, var(--color-success) 0%, #4ADE80 100%);
}

.progress-bar-warning {
    background: linear-gradient(90deg, var(--color-warning) 0%, #FBBF24 100%);
}

.progress-bar-error {
    background: linear-gradient(90deg, var(--color-error) 0%, #F87171 100%);
}

/* Progress with Label */
.progress-labeled {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.progress-labeled .progress {
    flex: 1;
}

.progress-label {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    min-width: 40px;
    text-align: right;
}

/* ============================================
   TOOLTIPS
   ============================================ */

.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip-content {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-3);
    background: var(--color-neutral-800);
    color: var(--color-white);
    font-size: var(--text-xs);
    border-radius: var(--radius-default);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--duration-150) var(--ease-in-out),
                visibility var(--duration-150) var(--ease-in-out);
    margin-bottom: var(--space-2);
    z-index: var(--z-tooltip);
}

.tooltip-content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--color-neutral-800);
}

.tooltip:hover .tooltip-content {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   AVATARS
   ============================================ */

.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    overflow: hidden;
    background: var(--color-primary-100);
    color: var(--color-primary-700);
    font-weight: var(--font-semibold);
}

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

/* Avatar Sizes */
.avatar-xs { width: 24px; height: 24px; font-size: var(--text-xs); }
.avatar-sm { width: 32px; height: 32px; font-size: var(--text-sm); }
.avatar-md { width: 40px; height: 40px; font-size: var(--text-base); }
.avatar-lg { width: 48px; height: 48px; font-size: var(--text-lg); }
.avatar-xl { width: 64px; height: 64px; font-size: var(--text-xl); }
.avatar-2xl { width: 80px; height: 80px; font-size: var(--text-2xl); }

/* Avatar Group */
.avatar-group {
    display: flex;
}

.avatar-group .avatar {
    border: 2px solid var(--color-bg-primary);
    margin-left: -8px;
}

.avatar-group .avatar:first-child {
    margin-left: 0;
}

/* ============================================
   DIVIDERS
   ============================================ */

.divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--space-4) 0;
}

.divider-vertical {
    width: 1px;
    height: auto;
    margin: 0 var(--space-4);
}

.divider-text {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

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

/* ============================================
   UTILITY ANIMATIONS
   ============================================ */

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}