/* ================================================
   JSON Fixer - Syntactic Dark Design System
   Based on Stitch-generated design
   ================================================ */

/* CSS Variables - Syntactic Dark Color System */
:root {
    /* Surface Colors */
    --surface: #0e0e0e;
    --surface-dim: #0e0e0e;
    --surface-bright: #2c2c2c;
    --surface-container-lowest: #000000;
    --surface-container-low: #131313;
    --surface-container: #1a1a1a;
    --surface-container-high: #20201f;
    --surface-container-highest: #262626;
    --surface-variant: #262626;
    
    /* Primary Colors */
    --primary: #6dddff;
    --primary-dim: #00c3eb;
    --primary-container: #00d2fd;
    --on-primary: #004c5e;
    
    /* Text Colors */
    --on-surface: #ffffff;
    --on-surface-variant: #adaaaa;
    --on-background: #ffffff;
    
    /* Outline */
    --outline: #767575;
    --outline-variant: #484847;
    
    /* Error Colors */
    --error: #ff716c;
    --error-container: #9f0519;
    --on-error-container: #ffa8a3;
    
    /* Typography */
    --font-headline: 'Manrope', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-label: 'Space Grotesk', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
}

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

body {
    font-family: var(--font-body);
    background: var(--surface);
    color: var(--on-surface);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
}

/* Header */
.app-header {
    background: var(--surface-container-low);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-bottom: 1px solid var(--outline-variant);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    color: var(--primary);
    width: 32px;
    height: 32px;
}

.app-title {
    font-family: var(--font-headline);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--on-surface);
}

.btn-new-json {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--surface-container-high);
    color: var(--primary);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-new-json:hover {
    background: var(--surface-container-highest);
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(109, 221, 255, 0.2);
}

.btn-new-json:active {
    transform: scale(0.98);
}

.btn-new-json svg {
    color: var(--primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.file-info-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-body);
    font-size: 0.7rem;
    color: var(--on-surface-variant);
}

.file-info-item {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.file-info-label {
    color: var(--outline);
    font-weight: 400;
}

.file-info-value {
    color: var(--on-surface);
    font-weight: 500;
}

.file-info-separator {
    color: var(--outline-variant);
    opacity: 0.5;
}

.version-badge {
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    background: var(--surface-container-high);
    color: var(--on-surface-variant);
    border-radius: var(--radius-md);
    letter-spacing: 0.05em;
}

/* Main Content */
.main-content {
    max-width: 100%;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
    padding-bottom: calc(80px + var(--spacing-2xl)); /* Espacio para el footer fijo */
}

.content-grid:not(.single-column) {
    padding: 0 var(--spacing-lg);
}

/* Content Grid - Two Columns */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

/* Cuando solo hay una columna visible, ocupar todo el ancho */
.content-grid.single-column {
    grid-template-columns: 1fr;
    gap: 0;
}

.content-grid.single-column .section-column {
    max-width: 100%;
    width: 100%;
}

@media (max-width: 1200px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
}

/* Section Column */
.section-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    min-height: 500px;
}

.section-column[style*="display: none"] {
    display: none !important;
}

.content-grid.single-column .section-column {
    gap: var(--spacing-sm);
    width: 100%;
    padding: 0;
    margin: 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--outline-variant);
}

.section-title {
    font-family: var(--font-headline);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--primary);
    text-transform: uppercase;
}

.btn-close-pdf {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--surface-container-high);
    color: var(--primary);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-md);
    font-family: var(--font-label);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-close-pdf:hover {
    background: var(--surface-container-highest);
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(109, 221, 255, 0.2);
}

.btn-close-pdf:active {
    transform: scale(0.98);
}

.btn-close-pdf svg {
    color: var(--primary);
}

/* Upload Section */
.upload-section,
.pdf-upload-section {
    margin-bottom: var(--spacing-xl);
}

.upload-section[style*="display: none"],
.pdf-upload-section[style*="display: none"] {
    display: none !important;
    margin: 0;
    padding: 0;
}

.upload-zone {
    background: var(--surface-container-low);
    border: 2px dashed var(--outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--spacing-3xl);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    user-select: none;
}

.upload-zone:hover {
    background: linear-gradient(135deg, rgba(109, 221, 255, 0.05), rgba(0, 210, 253, 0.05));
    border-color: var(--primary);
}

.upload-zone.drag-over {
    background: linear-gradient(135deg, rgba(109, 221, 255, 0.1), rgba(0, 210, 253, 0.1));
    border-color: var(--primary);
    transform: scale(1.01);
}

.upload-zone:active {
    transform: scale(0.99);
}

.upload-icon {
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
}

.upload-title {
    font-family: var(--font-headline);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--on-surface);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.upload-subtitle {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--on-surface-variant);
    margin-bottom: var(--spacing-lg);
}

.upload-formats {
    font-family: var(--font-label);
    font-size: 0.875rem;
    color: var(--outline);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Error Message */
.error-message {
    background: rgba(159, 5, 25, 0.2);
    color: var(--on-error-container);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-lg);
    font-size: 0.875rem;
    border-left: 3px solid var(--error);
}

/* Info Section */
.info-section {
    margin-bottom: var(--spacing-3xl);
}

.info-card,
.correction-card,
.preview-card {
    background: var(--surface-container-low);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--surface-container);
}

.card-title {
    font-family: var(--font-label);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--primary);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.info-label {
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.info-value {
    font-family: var(--font-body);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--on-surface);
}

/* Correction Section */
.correction-section {
    margin-bottom: var(--spacing-3xl);
}

.radio-group {
    padding: var(--spacing-xl);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.radio-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--surface-container);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.radio-option:hover {
    background: var(--surface-container-high);
}

.radio-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--outline);
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.radio-option input[type="radio"]:checked + .radio-custom {
    border-color: var(--primary);
    border-width: 2px;
}

.radio-option input[type="radio"]:checked + .radio-custom::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.radio-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.radio-title {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    color: var(--on-surface);
}

.radio-desc {
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

/* Preview Section */
.preview-section {
    margin-bottom: var(--spacing-3xl);
}

.preview-table-container {
    padding: var(--spacing-xl);
    overflow-x: auto;
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.preview-table thead th {
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: var(--spacing-lg);
    text-align: left;
    background: var(--surface-container);
    border-bottom: 2px solid var(--outline-variant);
}

.preview-table thead th:first-child {
    width: 50%;
}

.preview-table thead th:last-child {
    width: 50%;
}

.preview-table tbody td {
    padding: var(--spacing-lg);
    font-family: var(--font-body);
    color: var(--on-surface);
    background: var(--surface-container-high);
    vertical-align: top;
    border-bottom: 1px solid rgba(72, 72, 71, 0.3);
}

.preview-table tbody tr:nth-child(even) td {
    background: var(--surface-container-low);
}

.preview-table tbody td div {
    margin-bottom: var(--spacing-xs);
    line-height: 1.8;
}

.preview-table tbody td div:last-child {
    margin-bottom: 0;
}

.preview-table tbody td strong {
    font-family: var(--font-label);
    color: var(--primary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-right: var(--spacing-xs);
}

.preview-table tbody td.changed {
    background: rgba(109, 221, 255, 0.1);
    border-left: 3px solid var(--primary);
}

/* Download Section */
.download-section {
    margin-bottom: var(--spacing-3xl);
}

.btn-download {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-container));
    color: var(--on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-family: var(--font-label);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    box-shadow: 0 0 15px rgba(109, 221, 255, 0.1);
}

.btn-download:hover {
    background: linear-gradient(135deg, var(--primary-dim), var(--primary));
    box-shadow: 0 0 25px rgba(109, 221, 255, 0.3);
    transform: translateY(-2px);
}

.btn-download:active {
    transform: translateY(0);
}

.btn-download:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Messages */
.success-message,
.message {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-lg);
    text-align: center;
    font-size: 0.875rem;
}

.success-message,
.message.success {
    background: rgba(109, 221, 255, 0.1);
    color: var(--primary);
    border-left: 3px solid var(--primary);
}

.message.info {
    background: rgba(109, 221, 255, 0.08);
    color: var(--on-surface-variant);
    border-left: 3px solid var(--outline);
}

.message.error {
    background: rgba(159, 5, 25, 0.2);
    color: var(--on-error-container);
    border-left: 3px solid var(--error);
}

/* PDF Info Section */
.pdf-info-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    width: 100%;
    margin: 0;
    padding: 0;
}

@media (max-width: 900px) {
    .pdf-info-section {
        grid-template-columns: 1fr;
    }
}

.pdf-info-card,
.pdf-metadata-card {
    background: var(--surface-container);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.pdf-info-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm) var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.info-row {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: var(--spacing-xs);
    background: var(--surface-container-low);
    border-radius: var(--radius-sm);
    border-left: 2px solid var(--outline-variant);
}

.info-label {
    font-family: var(--font-label);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--on-surface-variant);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.info-value {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--on-surface);
    font-weight: 500;
    word-break: break-word;
}

.pdf-metadata-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    max-height: 400px;
    overflow-y: auto;
    padding-right: var(--spacing-xs);
}

.pdf-metadata-content::-webkit-scrollbar {
    width: 6px;
}

.pdf-metadata-content::-webkit-scrollbar-track {
    background: var(--surface-container-low);
    border-radius: var(--radius-sm);
}

.pdf-metadata-content::-webkit-scrollbar-thumb {
    background: var(--outline-variant);
    border-radius: var(--radius-sm);
}

.pdf-metadata-content::-webkit-scrollbar-thumb:hover {
    background: var(--outline);
}

.metadata-row {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--surface-container-low);
    border-radius: var(--radius-sm);
    border-left: 2px solid var(--outline-variant);
}

.metadata-key {
    font-family: var(--font-label);
    font-size: 0.7rem;
    color: var(--primary);
    font-weight: 600;
    word-break: break-word;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metadata-value {
    font-family: 'Fira Code', monospace;
    font-size: 0.75rem;
    color: var(--on-surface-variant);
    word-break: break-all;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .pdf-info-content,
    .pdf-metadata-content {
        grid-template-columns: 1fr;
    }
}

/* PDF Download Section */
.pdf-download-section {
    margin-top: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

/* Footer */
.app-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface-container-low);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-top: 1px solid var(--outline-variant);
    z-index: 100;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: var(--on-surface-variant);
}

.footer-brand {
    font-weight: 600;
    color: var(--on-surface);
}

.footer-separator {
    color: var(--outline-variant);
    opacity: 0.5;
}

.footer-version,
.footer-copyright {
    color: var(--on-surface-variant);
}

.conversion-counters {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.conversion-counter {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, rgba(109, 221, 255, 0.08), rgba(0, 210, 253, 0.08));
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(109, 221, 255, 0.2);
}

.counter-icon {
    color: var(--primary);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

@keyframes countUp {
    0% {
        transform: scale(1.5);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.counter-label {
    font-family: var(--font-label);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--on-surface-variant);
}

.counter-number {
    font-family: var(--font-headline);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    min-width: 2.5rem;
    text-align: center;
    letter-spacing: -0.02em;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }
    
    .logo-section {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .header-right {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }
    
    .file-info-header {
        flex-direction: column;
        gap: 0.25rem;
        font-size: 0.65rem;
        text-align: center;
    }
    
    .file-info-separator {
        display: none;
    }
    
    .btn-new-json {
        font-size: 0.7rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .version-badge {
        text-align: center;
    }
    
    .main-content {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .radio-group {
        grid-template-columns: 1fr;
    }
    
    .conversion-counters {
        flex-direction: column;
        gap: var(--spacing-sm);
        width: 100%;
    }
    
    .conversion-counter {
        width: 100%;
        justify-content: center;
    }
    
    .preview-table-container {
        padding: var(--spacing-md);
    }
    
    .preview-table {
        font-size: 0.75rem;
    }
    
    .preview-table thead th,
    .preview-table tbody td {
        padding: var(--spacing-sm);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-left {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .conversion-counter {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .counter-label {
        font-size: 0.6rem;
    }
    
    .counter-number {
        font-size: 1.1rem;
    }
}