/**
 * Global Components
 * Shared UI component styles: buttons, cards, forms, toggles, etc.
 * @version 2.5.0
 */

/* ========================================
   Buttons — Base
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    position: relative;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

@media (hover: hover) {
    .btn:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgb(0 0 0 / 15%);
    }
}

.btn:active {
    transform: translateY(0) scale(0.98);
    box-shadow: 0 2px 4px rgb(0 0 0 / 10%);
    opacity: 0.9;
}

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

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

/* ========================================
   Buttons — Color Variants
   ======================================== */

.btn-primary {
    background-color: var(--btn-primary-bg, #4a6fa5);
    color: var(--btn-primary-text, white);
}

@media (hover: hover) {
    .btn-primary:hover {
        background-color: var(--btn-primary-hover, #3a5a8a);
    }
}

.btn-secondary {
    background-color: var(--btn-secondary-bg, transparent);
    color: var(--btn-secondary-text, var(--text-primary));
    border: 1px solid var(--card-border);
}

@media (hover: hover) {
    .btn-secondary:hover {
        background-color: var(--btn-secondary-hover, rgb(0 0 0 / 5%));
        border-color: var(--text-primary);
    }
}

.btn-success {
    background-color: #4caf50;
    color: white;
}

@media (hover: hover) {
    .btn-success:hover {
        background-color: #45a049;
    }
}

.btn-danger {
    background-color: #f44336;
    color: white;
}

@media (hover: hover) {
    .btn-danger:hover {
        background-color: #d32f2f;
    }
}

.btn-dark {
    background-color: #222;
    color: white;
}

@media (hover: hover) {
    .btn-dark:hover {
        background-color: #444;
    }
}

/* ========================================
   Buttons — Legacy Aliases
   .button, .cta-button, .action-button, .jai-link
   ======================================== */

.button,
.cta-button,
.action-button,
.jai-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    position: relative;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

@media (hover: hover) {
    .button:hover,
    .cta-button:hover,
    .action-button:hover,
    .jai-link:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgb(0 0 0 / 15%);
    }
}

.cta-button,
.action-button {
    background-color: var(--btn-primary-bg, #4a6fa5);
    color: var(--btn-primary-text, white);
}

@media (hover: hover) {
    .cta-button:hover,
    .action-button:hover {
        background-color: var(--btn-primary-hover, #3a5a8a);
    }
}

.jai-link {
    background-color: #222;
    color: white;
    margin-top: auto;
}

@media (hover: hover) {
    .jai-link:hover {
        background-color: #444;
    }
}

/* ========================================
   Buttons — Size & Shape Modifiers
   ======================================== */

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
    border-radius: 6px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
    border-radius: 10px;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    padding: 12px;
    min-width: 44px;
}

.btn-round {
    border-radius: 50px;
}

.btn-outline {
    background-color: transparent;
    box-shadow: inset 0 0 0 1px currentcolor;
}

.btn-outline:hover {
    background-color: currentcolor;
    color: white;
}

/* ========================================
   Buttons — Loading State
   ======================================== */

.btn-loading {
    color: transparent;
    pointer-events: none;
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid currentcolor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: button-loading-spinner 1s linear infinite;
}

@keyframes button-loading-spinner {
    from {
        transform: rotate(0turn);
    }
    to {
        transform: rotate(1turn);
    }
}

/* ========================================
   Back Button
   ======================================== */

.back-button-container {
    text-align: center;
    margin-top: 40px;
    margin-bottom: 40px;
}

/* ========================================
   Cards — Base
   ======================================== */

.card,
.jai-card,
.project-card,
.app-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 2px 8px var(--card-shadow);
    transition: all var(--transition-normal);
    overflow: hidden;
    position: relative;
}

.jai-card {
    display: grid;
    grid-template-rows: var(--jai-image-height, 160px) 1fr;
    min-height: var(--jai-card-height, 360px);
    height: 100%;
    border: 1px solid rgb(0 0 0 / 10%);
    cursor: pointer;
    overflow: hidden;
    position: relative;
}

.card:hover,
.jai-card:hover,
.project-card:hover,
.app-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px var(--card-shadow);
}

/* ========================================
   Cards — JAI Card Parts
   ======================================== */

.jai-card-link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.jai-image {
    height: var(--jai-image-height, 160px);
    overflow: hidden;
    width: 100%;
    contain: layout style paint;
}

.jai-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    will-change: transform;
    transform: translateZ(0);
}

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

.jai-content {
    padding: 20px 20px 15px;
    display: flex;
    flex-direction: column;
}

.card-title,
.jai-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.card-description,
.jai-description {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    line-height: 1.6;
    flex: 1 1 auto;
}

.jai-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

/* ========================================
   Forms
   ======================================== */

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

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

.form-input,
.form-select,
.form-textarea,
.search-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus,
.search-input:focus,
input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgb(6 106 201 / 10%);
}

/* ========================================
   Toggle Switch
   ======================================== */

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: #ccc;
    transition: 0.4s;
    border-radius: 24px;
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

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

input:checked + .toggle-slider::before {
    transform: translateX(24px);
}

/* ========================================
   Modal
   ======================================== */

.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgb(0 0 0 / 50%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    max-width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 24px rgb(0 0 0 / 20%);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.2s ease;
}

.modal-close:hover {
    background-color: rgb(0 0 0 / 10%);
}

/* ========================================
   Grid Layouts — Simple
   ======================================== */

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

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ========================================
   Grid Layouts — Container Queries
   ======================================== */

.jai-container,
.projects-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    grid-auto-rows: 1fr;
    gap: 30px;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto 1rem;
    align-items: stretch;
    container-type: inline-size;
}

@container (min-width: 640px) {
    .jai-container {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }

    .jai-description {
        margin-bottom: 15px;
    }
}

@container (min-width: 769px) and (max-width: 1024px) {
    .jai-container,
    .projects-container {
        grid-template-columns: repeat(2, minmax(280px, 400px));
        justify-content: center;
    }

    .jai-card {
        max-width: 400px;
    }

    .jai-description {
        margin-bottom: 20px;
    }
}

/* ========================================
   Page Content
   ======================================== */

.page-content {
    margin-bottom: 40px;
    text-align: center;
}

.page-title {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.page-description {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

/* ========================================
   Utilities — Text Alignment
   ======================================== */

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

/* ========================================
   Utilities — Spacing (Margin)
   ======================================== */

.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-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);
}

/* ========================================
   Utilities — Spacing (Padding)
   ======================================== */

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

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

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

.pt-xl {
    padding-top: var(--spacing-xl);
}

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

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

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

.pb-xl {
    padding-bottom: var(--spacing-xl);
}

/* ========================================
   Utilities — Display
   ======================================== */

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

/* ========================================
   Utilities — Flexbox
   ======================================== */

.flex {
    display: flex;
}

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

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-column {
    display: flex;
    flex-direction: column;
}

/* ========================================
   Loading & Spinner
   ======================================== */

.loading {
    position: relative;
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--accent-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgb(0 0 0 / 10%);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ========================================
   Badges
   ======================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 20px;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
}

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

.badge-success {
    background-color: #4caf50;
    color: white;
}

.badge-warning {
    background-color: #ff9800;
    color: white;
}

.badge-danger {
    background-color: #f44336;
    color: white;
}

/* ========================================
   Empty State
   ======================================== */

.empty-state {
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

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

.empty-state-description {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   Creator & Social Links
   ======================================== */

.creator-link {
    text-decoration: none;
    display: inline-block;
    position: relative;
    z-index: 10;
    pointer-events: all;
}

.x-handle {
    display: inline-flex;
    align-items: center;
    background-color: #1d9bf0;
    color: #fff;
    padding: 5px 12px;
    border-radius: 20px;
    font-weight: 500;
    transition: background-color 0.2s ease;
    margin: 6px 0;
}

.x-handle:hover {
    background-color: #1877f2;
}

.x-logo {
    width: 16px;
    height: 16px;
    margin-right: 6px;
    display: inline-block;
    vertical-align: middle;
}

/* ========================================
   Responsive — Mobile (768px and below)
   ======================================== */

@media (width <= 768px) {
    .hide-mobile {
        display: none !important;
    }

    .page-title {
        font-size: 26px;
    }

    .page-description {
        font-size: 14px;
    }

    .jai-container,
    .projects-container {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .btn,
    button,
    input[type="button"],
    input[type="submit"],
    input[type="reset"],
    a.button,
    .cta-button,
    .action-button,
    .jai-link {
        min-height: 44px;
        min-width: 44px;
    }

    .modal-close {
        width: 44px;
        height: 44px;
    }
}

/* ========================================
   Responsive — Desktop (769px and above)
   ======================================== */

@media (width >= 769px) {
    .hide-desktop {
        display: none !important;
    }
}

/* ========================================
   Responsive — Tablet and below (991px)
   ======================================== */

@media (width <= 991px) {
    .placeholder-card {
        display: none;
    }
}

/* ========================================
   Back Link
   ======================================== */

.back-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: inherit;
}

/* ========================================
   Center Container
   ======================================== */

.center-container {
    text-align: center;
    margin: 40px auto;
}

/* ========================================
   Debug Page Utilities
   ======================================== */

.debug-links {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.debug-button {
    padding: 0.5rem 1rem;
}

/* ========================================
   Standardized App Button Component
   Unified button system across all apps
   ======================================== */

/* App Primary Button — Full-width CTA style */
.btn-app-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 16px 32px;
    background: var(--app-accent, var(--btn-primary-bg));
    color: var(--color-text-inverse, #fff);
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 52px;
    letter-spacing: 0.3px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn-app-primary:hover {
    background: var(--app-accent-dark, var(--btn-primary-hover));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-app-primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

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

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

/* App Secondary Button — Outlined style */
.btn-app-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    background: white;
    color: var(--app-accent, var(--text-primary));
    border: 2px solid var(--app-accent, var(--border-color));
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 44px;
}

.btn-app-secondary:hover {
    background: var(--app-accent-light, rgba(0, 0, 0, 0.05));
    border-color: var(--app-accent-dark, var(--app-accent));
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-app-secondary:focus-visible {
    outline: 2px solid var(--app-accent, var(--accent-color));
    outline-offset: 2px;
}

/* App Tertiary Button — Ghost/link style for less important actions */
.btn-app-tertiary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    background: transparent;
    color: var(--text-secondary, #666);
    border: none;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 36px;
}

.btn-app-tertiary:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-primary, #333);
}

.btn-app-tertiary:focus-visible {
    outline: 2px solid var(--app-accent, var(--accent-color));
    outline-offset: 2px;
}

/* ========================================
   Standardized Empty State — Enhanced
   ======================================== */

.empty-state-enhanced {
    text-align: center;
    padding: var(--spacing-2xl, 3rem) var(--spacing-lg, 1.5rem);
    color: var(--text-muted, #767676);
}

.empty-state-enhanced .empty-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-lg, 1.5rem);
    opacity: 0.7;
}

.empty-state-enhanced .empty-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary, #333);
    margin: 0 0 var(--spacing-sm, 0.5rem) 0;
}

.empty-state-enhanced .empty-description {
    font-size: 1rem;
    color: var(--text-secondary, #4d4d4d);
    margin: 0 0 var(--spacing-lg, 1.5rem) 0;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}