/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-4);
    animation: fadeIn 0.5s ease;
}

@media (min-width: 640px) {
    .container {
        padding: var(--space-8);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: var(--space-12);
    }
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.logo-icon {
    color: var(--color-primary);
}

.logo-text {
    font-size: var(--font-size-h1);
    font-weight: var(--font-weight-extrabold);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-pink) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: var(--font-size-body-large);
    color: var(--color-text-secondary);
    margin: 0;
}

/* Main Content */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

/* Examples Gallery Section */
.examples-gallery {
    margin-bottom: var(--space-12);
    animation: fadeIn 0.5s ease;
}

.examples-section {
    margin-bottom: var(--space-16);
}

.examples-section:last-child {
    margin-bottom: 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-8);
    padding: var(--space-6) var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--color-primary);
}

.section-title {
    font-size: var(--font-size-h2);
    color: var(--color-primary);
    margin: 0 0 var(--space-2) 0;
    line-height: var(--line-height-tight);
    font-weight: var(--font-weight-bold);
}

.section-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-body);
    margin: 0;
}

/* Gallery Grid - Responsive 3-column layout */
.gallery-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

/* Tablet: 2 columns */
@media (min-width: 640px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
}

/* Desktop: 3 columns */
@media (min-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-8);
    }
}

/* Example Card - Gallery style */
.example-card {
    background: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.example-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(99, 102, 241, 0.15);
}

.example-card:active {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(99, 102, 241, 0.12);
}

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

/* Medium-sized image on top */
.example-thumbnail {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: var(--color-bg-tertiary);
    transition: transform var(--transition-slow);
}

@media (min-width: 640px) {
    .example-thumbnail {
        height: 240px;
    }
}

@media (min-width: 1024px) {
    .example-thumbnail {
        height: 250px;
    }
}

.example-card:hover .example-thumbnail {
    transform: scale(1.05);
}

.example-content {
    padding: var(--space-5);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.example-description {
    font-size: var(--font-size-body-small);
    color: var(--color-text-secondary);
    line-height: var(--line-height-normal);
    margin: 0;
}

/* Generator Section */
.generator-section {
    margin-bottom: var(--space-12);
}

/* Highlight animation for textarea */
@keyframes highlight {
    0% {
        background-color: rgba(99, 102, 241, 0.1);
    }
    100% {
        background-color: transparent;
    }
}

.form-textarea.highlighted {
    animation: highlight 1s ease;
}

/* Generator Card */
.generator-card {
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-slow);
    border: 2px solid var(--color-border);
    max-width: 800px;
    margin: 0 auto;
}

.generator-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.card-header {
    margin-bottom: var(--space-8);
    text-align: center;
}

.card-title {
    margin-bottom: var(--space-3);
    color: var(--color-primary-dark);
}

.card-description {
    color: var(--color-text-secondary);
    margin: 0;
}

/* Form Styles */
.artifact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.label-required {
    color: var(--color-error);
}

.label-optional {
    font-weight: var(--font-weight-regular);
    color: var(--color-text-muted);
    font-size: var(--font-size-body-small);
}

.form-textarea {
    min-height: 150px;
    padding: var(--space-4);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-size: var(--font-size-body);
    line-height: var(--line-height-relaxed);
    resize: vertical;
    transition: all var(--transition-normal);
}

.form-textarea:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-help {
    font-size: var(--font-size-body-small);
    color: var(--color-text-muted);
    margin: 0;
}

/* Upload Zone */
.upload-zone {
    position: relative;
    border: 2px dashed var(--color-border-dark);
    border-radius: var(--border-radius-md);
    padding: var(--space-8);
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
    background: var(--color-bg-secondary);
}

.upload-zone:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-tertiary);
}

.upload-zone.dragging {
    border-color: var(--color-primary);
    background: rgba(99, 102, 241, 0.05);
}

.upload-input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-placeholder {
    pointer-events: none;
}

.upload-icon {
    color: var(--color-primary);
    margin: 0 auto var(--space-3);
}

.upload-text {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.upload-subtext {
    font-size: var(--font-size-body-small);
    color: var(--color-text-muted);
    margin: 0;
}

/* Image Preview */
.image-preview-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.image-preview-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 2px solid var(--color-border);
    transition: all var(--transition-normal);
    animation: scaleIn 0.3s ease;
}

.image-preview-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.preview-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.preview-remove {
    position: absolute;
    top: var(--space-1);
    right: var(--space-1);
    background: var(--color-error);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    opacity: 0;
}

.image-preview-item:hover .preview-remove {
    opacity: 1;
}

.preview-remove:hover {
    transform: scale(1.1);
    background: #dc2626;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-8);
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
    width: 100%;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

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

.btn-secondary:hover:not(:disabled) {
    background: rgba(99, 102, 241, 0.05);
}

.btn-icon {
    flex-shrink: 0;
}

/* Loading State */
.loading-state {
    animation: fadeIn 0.5s ease;
    /* Position loading state absolutely over the center form column */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 600px;
    z-index: var(--z-sticky);
    pointer-events: auto;
}

.loading-state.hidden {
    pointer-events: none;
}

.loading-card {
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--space-12);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.loading-spinner-container {
    margin-bottom: var(--space-6);
    display: flex;
    justify-content: center;
}

.spinner {
    position: relative;
    width: 80px;
    height: 80px;
}

.spinner-ring {
    position: absolute;
    inset: 0;
    border: 4px solid transparent;
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
}

.spinner-ring:nth-child(2) {
    border-top-color: var(--color-accent-teal);
    animation-delay: -0.33s;
    width: 60px;
    height: 60px;
    top: 10px;
    left: 10px;
}

.spinner-ring:nth-child(3) {
    border-top-color: var(--color-accent-pink);
    animation-delay: -0.66s;
    width: 40px;
    height: 40px;
    top: 20px;
    left: 20px;
}

.loading-title {
    color: var(--color-primary-dark);
    margin-bottom: var(--space-3);
}

.loading-message {
    color: var(--color-text-secondary);
    font-size: var(--font-size-body-large);
    margin-bottom: var(--space-6);
    animation: pulse 2s ease-in-out infinite;
}

.loading-progress {
    max-width: 300px;
    margin: 0 auto;
}

.progress-bar {
    height: 8px;
    background: var(--color-bg-tertiary);
    border-radius: 999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent-teal), var(--color-accent-pink));
    background-size: 200% 100%;
    border-radius: 999px;
    transition: width var(--transition-slower);
    animation: shimmer 2s linear infinite;
}

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

/* Result State */
.result-state {
    animation: fadeIn 0.5s ease;
}

.result-card {
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.result-title {
    color: var(--color-primary-dark);
    margin: 0;
}

.btn-close {
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

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

.result-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.artifact-preview {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 1;
    cursor: pointer;
    transition: all var(--transition-slow);
}

.artifact-preview:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.artifact-preview:hover .preview-overlay {
    opacity: 1;
}

.artifact-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: var(--color-bg-tertiary);
}

.preview-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.preview-btn {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: white;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.preview-btn:hover {
    transform: scale(1.1);
}

.result-actions {
    display: flex;
    gap: var(--space-3);
}

.result-actions .btn-primary,
.result-actions .btn-secondary {
    flex: 1;
}

/* Error State */
.error-state {
    animation: fadeIn 0.5s ease;
}

.error-card {
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--space-12);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 2px solid rgba(239, 68, 68, 0.2);
}

.error-icon {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-6);
    color: var(--color-error);
}

.error-title {
    color: var(--color-error);
    margin-bottom: var(--space-3);
}

.error-message {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    animation: fadeIn 0.3s ease;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    z-index: var(--z-modal-backdrop);
    cursor: pointer;
}

.modal-content {
    position: relative;
    z-index: var(--z-modal);
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-lg);
    max-width: 1200px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    animation: scaleIn 0.3s ease;
}

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

.modal-title {
    margin: 0;
    color: var(--color-primary-dark);
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

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

.modal-body {
    flex: 1;
    overflow: auto;
    padding: var(--space-6);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--border-radius-md);
}

.modal-footer {
    padding: var(--space-6);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: center;
}

.modal-footer .btn-secondary {
    width: auto;
    min-width: 200px;
}

/* Responsive Adjustments */
@media (min-width: 640px) {
    .result-actions {
        flex-direction: row;
    }

    .btn-primary,
    .btn-secondary {
        width: auto;
    }
}

@media (max-width: 639px) {
    .logo-text {
        font-size: var(--font-size-h2);
    }

    .generator-card {
        padding: var(--space-6);
    }

    .modal-content {
        max-height: 95vh;
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding: var(--space-4);
    }
}