/* Reset and base styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #252525;
    --text-primary: #fafafa;
    --text-secondary: #a0a0a0;
    --accent: #0ea5e9;
    --accent-hover: #38bdf8;
    --success: #22c55e;
    --error: #ef4444;
    --border: #333;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Top Navigation Bar */
.top-nav {
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.top-nav-inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s;
}

.site-title:hover {
    color: var(--accent);
}

.top-nav nav {
    display: flex;
    gap: 2rem;
}

.top-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
    font-weight: 500;
}

.top-nav nav a:hover {
    color: var(--accent);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Header / Hero */
.hero {
    text-align: center;
    padding: 3rem 0 4rem;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.privacy-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--success);
    color: var(--success);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.tool-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
    position: relative;
}

.tool-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 8px 30px rgba(14, 165, 233, 0.15);
}

.tool-card.coming-soon {
    opacity: 0.6;
    pointer-events: none;
}

.tool-card .badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.tool-icon {
    color: var(--accent);
    margin-bottom: 1rem;
}

.tool-card h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tool-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    margin-top: 4rem;
}

.footer-note {
    font-size: 0.875rem;
    color: var(--text-secondary);
    opacity: 0.7;
}

.footer-note a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-note a:hover {
    color: var(--accent);
}

/* Tool Page Styles */
.tool-header {
    margin-bottom: 2rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--text-primary);
}

.tool-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.tool-header p {
    color: var(--text-secondary);
}

.tool-privacy-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
    padding: 0.375rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    margin-top: 1rem;
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border);
    border-radius: 1rem;
    padding: 3rem 2rem;
    text-align: center;
    transition: border-color 0.2s, background-color 0.2s;
    cursor: pointer;
    margin-bottom: 2rem;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--accent);
    background: rgba(14, 165, 233, 0.05);
}

.drop-zone-icon {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.drop-zone h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.drop-zone p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.drop-zone input[type="file"] {
    display: none;
}

.browse-btn {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: 0.625rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.browse-btn:hover {
    background: var(--accent-hover);
}

/* Preview Grid */
.preview-section {
    display: none;
    margin-bottom: 2rem;
}

.preview-section.active {
    display: block;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.preview-header h3 {
    font-size: 1rem;
}

.clear-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: color 0.2s;
}

.clear-btn:hover {
    color: var(--error);
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
}

.preview-item {
    position: relative;
    aspect-ratio: 1;
    background: var(--bg-secondary);
    border-radius: 0.5rem;
    overflow: hidden;
    border: 1px solid var(--border);
}

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

.preview-item .status {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.7);
    font-size: 0.75rem;
    text-align: center;
}

.preview-item .status.converting {
    color: var(--accent);
}

.preview-item .status.done {
    color: var(--success);
}

.preview-item .status.error {
    color: var(--error);
}

.preview-item .remove-btn {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    width: 24px;
    height: 24px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s;
}

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

.preview-item .remove-btn:hover {
    color: var(--error);
}

/* Action Buttons */
.actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: background-color 0.2s, opacity 0.2s;
}

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

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

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--border);
}

/* Progress */
.progress-section {
    display: none;
    margin-bottom: 2rem;
}

.progress-section.active {
    display: block;
}

.progress-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 4px;
    transition: width 0.3s;
    width: 0%;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Results */
.results-section {
    display: none;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 1rem;
    border: 1px solid var(--success);
}

.results-section.active {
    display: block;
}

.results-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--success);
    margin-bottom: 1rem;
}

.results-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Resize Controls */
.resize-controls {
    display: none;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.resize-controls.active {
    display: block;
}

.resize-controls h3 {
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

.resize-mode-selector {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.radio-option input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

.radio-label {
    font-size: 0.9rem;
}

.resize-inputs {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.input-with-unit {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    overflow: hidden;
}

.input-with-unit input {
    width: 100px;
    padding: 0.625rem 0.75rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
}

.input-with-unit input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.input-with-unit input:focus {
    background: rgba(14, 165, 233, 0.05);
}

.input-with-unit .unit {
    padding: 0.625rem 0.75rem;
    background: var(--border);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.resize-options {
    margin-bottom: 1.25rem;
}

.checkbox-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

.checkbox-label {
    font-size: 0.9rem;
}

.quality-control {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.quality-control label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.slider-container input[type="range"] {
    flex: 1;
    max-width: 250px;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s;
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--accent-hover);
}

.slider-container input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.quality-value {
    font-size: 0.9rem;
    color: var(--accent);
    min-width: 40px;
}

.drop-zone-formats {
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.7;
    margin-top: 0.5rem;
}

.preview-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

/* Rotation Controls */
.rotation-controls {
    display: none;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.rotation-controls.active {
    display: block;
}

.rotation-controls h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
}

.rotation-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.rotation-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
}

.rotation-btn:hover {
    background: var(--border);
    border-color: var(--text-secondary);
}

.rotation-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.rotation-btn svg {
    flex-shrink: 0;
}

/* Preview image transforms */
.preview-item img {
    transition: transform 0.2s ease;
}

/* Spin animation for loading */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spin {
    animation: spin 1s linear infinite;
}

/* Crop Tool Styles */
.crop-container {
    display: none;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.crop-container.active {
    display: block;
}

.crop-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.crop-header h3 {
    font-size: 1rem;
}

.crop-canvas-wrapper {
    max-height: 500px;
    margin-bottom: 1rem;
    background: var(--bg-tertiary);
    border-radius: 0.5rem;
    overflow: hidden;
}

.crop-canvas-wrapper img {
    max-width: 100%;
    display: block;
}

/* Aspect Ratio Buttons */
.aspect-ratio-selector {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.aspect-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
}

.aspect-btn:hover {
    background: var(--border);
    border-color: var(--text-secondary);
}

.aspect-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.crop-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.crop-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Cropper.js theme overrides for dark mode */
.cropper-container {
    background: var(--bg-tertiary);
}

.cropper-modal {
    background-color: rgba(0, 0, 0, 0.7);
}

.cropper-view-box {
    outline: 1px solid var(--accent);
    outline-color: rgba(14, 165, 233, 0.75);
}

.cropper-line {
    background-color: var(--accent);
}

.cropper-point {
    background-color: var(--accent);
    height: 10px;
    width: 10px;
    opacity: 1;
}

.cropper-point.point-se {
    height: 10px;
    width: 10px;
}

.cropper-dashed {
    border-color: rgba(255, 255, 255, 0.3);
}

/* Settings Section */
.settings-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.setting-label {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.setting-label span {
    color: var(--text-secondary);
}

.setting-label strong {
    color: var(--accent);
}

.setting-label input[type="range"] {
    width: 100%;
    max-width: 300px;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.setting-label input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
}

.setting-label input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.setting-label select {
    padding: 0.625rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    max-width: 300px;
}

.setting-label input[type="number"] {
    padding: 0.625rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    width: 120px;
}

.setting-group {
    margin-bottom: 1rem;
}

.setting-group:last-child {
    margin-bottom: 0;
}

.setting-hint {
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.7;
    margin-top: 0.5rem;
}

#customSizeGroup {
    flex-wrap: wrap;
    gap: 1rem;
}

/* Checkbox Group for Favicon Sizes */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* Base64 Result Cards */
.base64-result-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1rem;
}

.base64-result-card:last-child {
    margin-bottom: 0;
}

.base64-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.base64-header strong {
    font-size: 0.9rem;
    word-break: break-all;
}

.base64-size {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.base64-preview {
    width: 100px;
    height: 100px;
    background: var(--bg-secondary);
    border-radius: 0.5rem;
    overflow: hidden;
    margin-bottom: 1rem;
}

.base64-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.base64-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.base64-actions .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
}

.base64-textarea {
    width: 100%;
    height: 100px;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-family: monospace;
    font-size: 0.75rem;
    resize: vertical;
}

/* Copy Feedback Toast */
.copy-feedback {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--success);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    z-index: 1000;
}

.copy-feedback.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Drop zone hint */
.drop-zone .hint {
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.7;
    margin-top: 1rem;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 2px solid var(--accent);
    padding: 1.5rem;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.cookie-content {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.cookie-text h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.cookie-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

.cookie-actions {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
}

.cookie-actions .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    white-space: nowrap;
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }

    .top-nav-inner {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .top-nav nav {
        gap: 1.5rem;
    }

    .site-title {
        font-size: 0.95rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .tagline {
        font-size: 1rem;
    }

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

    .actions {
        flex-direction: column;
    }

    .btn {
        justify-content: center;
    }

    .cookie-content {
        flex-direction: column;
        align-items: stretch;
        gap: 1.5rem;
    }

    .cookie-actions {
        flex-direction: column;
    }

    .cookie-actions .btn {
        width: 100%;
    }
}