/* ============================================
   PSD Analyzer - Modern Styling with Dark Mode
   Light mode default, single colors, no gradients
   ============================================ */

/* CSS Variables - Light Mode (Default) */
:root {
    --transition-speed: 0.25s;

    /* Primary Colors - Blue Theme */
    --primary: #3399cc;
    --primary-light: #e0f2fe;
    --primary-dark: #2980b9;
    --accent: #60a5fa;

    /* Status Colors */
    --success: #339966;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #e64e4e;
    --danger-light: #fee2e2;
    --info: #3399cc;
    --info-light: #dbeafe;

    /* Background Colors */
    --bg: #f8fafc;
    --bg-elevated: #ffffff;
    --bg-secondary: #f1f5f9;
    --bg-tertiary: #e2e8f0;

    /* Text Colors */
    --text: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;

    /* Border Colors */
    --border: #e2e8f0;
    --border-light: #f1f5f9;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
    --shadow-primary: 0 4px 14px rgba(51, 153, 204, 0.25);
    --shadow-primary-hover: 0 6px 20px rgba(51, 153, 204, 0.35);

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Input */
    --input-bg: #ffffff;
    --input-border: #e2e8f0;

    /* Scrollbar */
    --scrollbar-track: var(--bg);
    --scrollbar-thumb: var(--text-muted);
    --scrollbar-thumb-hover: var(--text-secondary);
}

/* Dark Mode Colors */
[data-theme="dark"] {
    --primary: #60a5fa;
    --primary-light: rgba(96, 165, 250, 0.15);
    --primary-dark: #3b82f6;
    --accent: #93c5fd;

    --success: #4ade80;
    --success-light: rgba(74, 222, 128, 0.15);
    --warning: #fbbf24;
    --warning-light: rgba(251, 191, 36, 0.15);
    --danger: #f87171;
    --danger-light: rgba(248, 113, 113, 0.15);
    --info: #60a5fa;
    --info-light: rgba(96, 165, 250, 0.15);

    --bg: #0f172a;
    --bg-elevated: #1e293b;
    --bg-secondary: #334155;
    --bg-tertiary: #475569;

    --text: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;

    --border: rgba(255,255,255,0.1);
    --border-light: rgba(255,255,255,0.05);

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.5);
    --shadow-primary: 0 4px 14px rgba(96, 165, 250, 0.2);
    --shadow-primary-hover: 0 6px 20px rgba(96, 165, 250, 0.3);

    --input-bg: #334155;
    --input-border: #475569;

    --scrollbar-track: var(--bg-elevated);
    --scrollbar-thumb: var(--text-muted);
    --scrollbar-thumb-hover: var(--text-secondary);
}

/* ============================================
   TOOL CONTAINER
   ============================================ */
.tool-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px 20px 40px;
}

/* ============================================
   TOOL HEADER
   ============================================ */
.tool-header {
    text-align: center;
    margin-bottom: 28px;
}

.tool-title-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 14px;
}

.tool-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-icon-wrapper i {
    width: 28px;
    height: 28px;
}

.tool-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
    margin: 0;
}

.tool-description {
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* ============================================
   UPLOAD SECTION
   ============================================ */
.upload-section {
    margin-bottom: 24px;
}

.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    background: var(--bg-elevated);
    transition: all var(--transition-speed);
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: var(--shadow-primary);
}

.upload-icon {
    color: var(--primary);
    margin-bottom: 16px;
}

.upload-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 8px;
}

.upload-subtitle {
    color: var(--text-muted);
    margin: 0 0 16px;
}

.file-types {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 12px;
}

.file-type-badge {
    background: var(--primary);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    letter-spacing: 0.5px;
}

.upload-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
}

/* ============================================
   LOADING SECTION
   ============================================ */
.loading-section {
    text-align: center;
    padding: 60px 24px;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 0.8s linear infinite;
}

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

.loading-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 16px;
}

.loading-progress {
    width: 100%;
    max-width: 400px;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    margin: 0 auto 12px;
    overflow: hidden;
}

.loading-progress-bar {
    height: 100%;
    background: var(--primary);
    border-radius: var(--radius-full);
    width: 0;
    transition: width 0.3s ease;
}

.loading-detail {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

/* ============================================
   FILE SUMMARY BAR
   ============================================ */
.file-summary-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    margin-bottom: 20px;
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.summary-item i {
    color: var(--primary);
    flex-shrink: 0;
}

/* ============================================
   TAB NAVIGATION
   ============================================ */
.tab-nav {
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 4px;
    margin-bottom: 20px;
    overflow-x: auto;
}

.tab-btn {
    flex: 1;
    min-width: max-content;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 16px;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text);
    background: var(--bg-elevated);
}

.tab-btn.active {
    background: var(--bg-elevated);
    color: var(--primary);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

/* ============================================
   OVERVIEW GRID
   ============================================ */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .overview-grid {
        grid-template-columns: 1fr;
    }
}

.analysis-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: background var(--transition-speed), border var(--transition-speed);
}

.card-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    margin: 0 0 16px;
}

.data-table {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.data-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
    gap: 12px;
}

.data-row:last-child {
    border-bottom: none;
}

.data-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
}

.data-value {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    text-align: right;
    word-break: break-word;
}

/* ============================================
   LAYERS TAB
   ============================================ */
.layers-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.layers-count {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.layers-actions {
    display: flex;
    gap: 6px;
}

.btn-icon {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-icon:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.layers-list {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    max-height: 600px;
    overflow-y: auto;
}

.layers-list::-webkit-scrollbar {
    width: 6px;
}

.layers-list::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

.layers-list::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

.layers-list::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* Layer item */
.layer-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    padding-left: calc(16px + var(--depth, 0) * 24px);
    border-bottom: 1px solid var(--border-light);
    font-size: 13px;
    transition: background var(--transition-speed);
}

.layer-item:hover {
    background: var(--bg-secondary);
}

.layer-item:last-child {
    border-bottom: none;
}

.layer-type-icon {
    color: var(--text-muted);
    flex-shrink: 0;
}

.layer-type-icon.group-icon {
    color: var(--primary);
}

.layer-name {
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    flex: 1;
}

.layer-badge {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: var(--radius-full);
    white-space: nowrap;
    flex-shrink: 0;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.badge-group {
    background: var(--primary-light);
    color: var(--primary);
}

.badge-text {
    background: var(--warning-light);
    color: var(--warning);
}

.badge-adjustment {
    background: var(--info-light);
    color: var(--info);
}

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

.badge-fill {
    background: var(--danger-light);
    color: var(--danger);
}

.layer-meta {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 3px;
}

.layer-opacity {
    font-weight: 500;
}

.layer-hidden {
    color: var(--danger);
}

.layer-dims {
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
}

/* Layer group */
.layer-group {
    border-bottom: 1px solid var(--border-light);
}

.layer-group:last-child {
    border-bottom: none;
}

.layer-group-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    padding-left: calc(16px + var(--depth, 0) * 24px);
    cursor: pointer;
    font-size: 13px;
    transition: background var(--transition-speed);
}

.layer-group-header:hover {
    background: var(--bg-secondary);
}

.group-chevron {
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.layer-group.expanded > .layer-group-header .group-chevron {
    transform: rotate(90deg);
}

.layer-group-children {
    display: none;
}

.layer-group.expanded > .layer-group-children {
    display: block;
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.empty-state i {
    margin-bottom: 12px;
    opacity: 0.5;
}

.empty-state p {
    margin: 0;
    font-size: 14px;
}

/* ============================================
   RESOURCES TAB
   ============================================ */
.resources-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.resource-item {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: background var(--transition-speed), border var(--transition-speed);
}

.resource-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
}

.resource-id {
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-light);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.resource-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    flex: 1;
    min-width: 0;
}

.resource-size {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
}

.resource-data {
    padding: 0 16px 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.resource-detail {
    display: flex;
    gap: 12px;
    font-size: 12px;
}

.detail-key {
    color: var(--text-muted);
    min-width: 140px;
    white-space: nowrap;
}

.detail-value {
    color: var(--text);
    word-break: break-word;
}

.xmp-preview {
    font-size: 11px;
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    background: var(--bg-secondary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    max-height: 150px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-all;
    margin: 4px 0 0;
    color: var(--text-secondary);
}

/* ============================================
   RAW DATA TAB
   ============================================ */
.raw-toolbar {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.btn-small {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-small:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.raw-output {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 12px;
    line-height: 1.5;
    color: var(--text);
    max-height: 500px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-all;
    margin: 0;
}

.raw-output::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.raw-output::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

.raw-output::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

/* ============================================
   RESULT ACTIONS
   ============================================ */
.result-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
}

.btn-primary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--primary);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    box-shadow: var(--shadow-primary-hover);
    transform: translateY(-1px);
}

/* ============================================
   ERROR BANNER
   ============================================ */
.error-banner {
    margin-top: 20px;
    border-radius: var(--radius-md);
    background: var(--danger-light);
    padding: 16px 20px;
}

.error-content {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.error-content i {
    color: var(--danger);
    flex-shrink: 0;
    margin-top: 2px;
}

.error-message {
    font-size: 14px;
    font-weight: 500;
    color: var(--danger);
    margin: 0 0 4px;
}

.error-help {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0;
}

.error-help a {
    color: var(--primary);
    text-decoration: underline;
}

/* ============================================
   RELATED TOOLS
   ============================================ */
.related-tools {
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
}

.related-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 16px;
}

.related-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.related-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition-speed);
}

.related-link:hover {
    color: var(--primary);
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.related-link i {
    color: var(--primary);
    flex-shrink: 0;
}

/* ============================================
   INFO SECTIONS
   ============================================ */
.info-sections {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.info-card {
    padding: 0;
}

.info-card h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 16px;
}

.info-card h2 i {
    color: var(--primary);
    flex-shrink: 0;
}

.info-card p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0 0 12px;
}

.info-card p:last-child {
    margin-bottom: 0;
}

.info-card a {
    color: var(--primary);
    text-decoration: none;
}

.info-card a:hover {
    text-decoration: underline;
}

.steps-list {
    list-style: none;
    counter-reset: steps;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.steps-list li {
    counter-increment: steps;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.steps-list li::before {
    content: counter(steps);
    min-width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.faq-item {
    border-bottom: 1px solid var(--border-light);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 0;
    border: none;
    background: transparent;
    color: var(--text);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    gap: 12px;
}

.faq-question i {
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.faq-item.open .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: 0 0 14px;
}

.faq-item.open .faq-answer {
    display: block;
}

.faq-answer p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 640px) {
    .tool-container {
        padding: 16px 12px 32px;
    }

    .tool-title {
        font-size: 22px;
    }

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

    .upload-area {
        padding: 32px 16px;
    }

    .file-summary-bar {
        flex-direction: column;
        gap: 8px;
    }

    .tab-nav {
        gap: 2px;
    }

    .tab-btn {
        padding: 8px 10px;
        font-size: 12px;
    }

    .tab-btn i {
        display: none;
    }

    .overview-grid {
        grid-template-columns: 1fr;
    }

    .related-links {
        flex-direction: column;
    }

    .related-link {
        width: 100%;
    }

    .layer-item,
    .layer-group-header {
        padding-left: calc(10px + var(--depth, 0) * 16px);
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .upload-section,
    .loading-section,
    .result-actions,
    .tab-nav,
    .related-tools,
    .error-banner {
        display: none !important;
    }

    .tab-panel {
        display: block !important;
    }

    .tool-container {
        max-width: 100%;
    }
}