*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #0a0a0a;
    --surface: #141414;
    --border: #2a2a2a;
    --text: #e0e0e0;
    --text-dim: #888;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --success: #22c55e;
    --error: #ef4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 480px;
    padding: 2rem;
}

h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.subtitle {
    color: var(--text-dim);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.dropzone {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 3rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.dropzone:hover, .dropzone.drag-over {
    border-color: var(--accent);
    background: rgba(59, 130, 246, 0.05);
}

.dropzone-content svg {
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.dropzone-content p {
    color: var(--text-dim);
    font-size: 0.875rem;
}

.link {
    color: var(--accent);
    cursor: pointer;
    text-decoration: underline;
}

.options {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.option-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.option-group label {
    font-size: 0.8125rem;
    color: var(--text-dim);
    width: 80px;
    flex-shrink: 0;
}

.option-group select, .option-group input {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    color: var(--text);
    font-size: 0.875rem;
}

.slug-input {
    flex: 1;
    display: flex;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
}

.slug-prefix {
    padding: 0.5rem 0 0.5rem 0.75rem;
    color: var(--text-dim);
    font-size: 0.875rem;
    font-family: monospace;
    flex-shrink: 0;
}

.slug-input input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 0.5rem 0.75rem 0.5rem 0;
    color: var(--text);
    font-size: 0.875rem;
    font-family: monospace;
    outline: none;
}

.slug-hint {
    font-size: 0.75rem;
    color: var(--error);
    margin-top: -0.25rem;
    padding-left: calc(80px + 0.75rem);
}

.btn {
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 0.25rem;
}

.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-small { padding: 0.375rem 0.75rem; font-size: 0.8125rem; margin-top: 0; }

.progress-bar {
    background: var(--surface);
    border-radius: 4px;
    height: 6px;
    overflow: hidden;
    margin: 0.5rem 0;
}

.progress-fill {
    background: var(--accent);
    height: 100%;
    width: 0%;
    border-radius: 4px;
    transition: width 0.15s;
}

.progress-text {
    font-size: 0.8125rem;
    color: var(--text-dim);
    text-align: right;
}

.file-name {
    font-size: 0.875rem;
    color: var(--text);
    word-break: break-all;
}

.result {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--surface);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.result-success p {
    color: var(--success);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.result-url {
    display: flex;
    gap: 0.5rem;
}

.result-url input {
    flex: 1;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    color: var(--text);
    font-size: 0.8125rem;
    font-family: monospace;
}

.result-meta {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-dim);
    word-break: break-all;
}

.error {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    color: var(--error);
    font-size: 0.875rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.auth-form input {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.625rem 0.75rem;
    color: var(--text);
    font-size: 0.875rem;
}

footer {
    margin-top: 2rem;
    text-align: center;
}

footer a {
    color: var(--text-dim);
    font-size: 0.75rem;
    text-decoration: none;
}

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

.hidden { display: none !important; }

/* File list */
.file-list {
    margin-top: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.file-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    background: var(--surface);
    font-size: 0.8125rem;
    color: var(--text-dim);
    border-bottom: 1px solid var(--border);
}

.file-list-clear {
    background: none;
    border: none;
    font-size: 0.75rem;
    cursor: pointer;
}

.file-list-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
    border-bottom: 1px solid var(--border);
}

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

.file-list-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-list-size {
    color: var(--text-dim);
    flex-shrink: 0;
    font-size: 0.75rem;
}

.file-list-remove {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 0 0.25rem;
    flex-shrink: 0;
}

.file-list-remove:hover {
    color: var(--error);
}

.progress-overall {
    font-size: 0.8125rem;
    color: var(--text-dim);
    margin-bottom: 0.25rem;
}

/* Multi-file results */
.result-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.result-item {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    padding: 0.375rem 0;
    border-bottom: 1px solid var(--border);
}

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

.result-item-name {
    font-size: 0.8125rem;
    color: var(--accent);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.result-item-name:hover {
    text-decoration: underline;
}

.result-item-url {
    font-size: 0.75rem;
    color: var(--text-dim);
    font-family: monospace;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Batch page */
.batch-container {
    max-width: 720px;
}

.batch-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
}

.batch-header h1 {
    margin-bottom: 0.125rem;
}

.batch-header .btn {
    margin-top: 0;
    flex-shrink: 0;
}

.batch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
}

.batch-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.batch-card:hover {
    border-color: var(--accent);
}

.batch-card-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    aspect-ratio: 1;
    background: var(--bg);
    overflow: hidden;
    text-decoration: none;
}

.batch-card-preview img,
.batch-card-preview video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.batch-card-icon {
    color: var(--text-dim);
}

.batch-card-footer {
    padding: 0.5rem 0.625rem;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    min-width: 0;
}

.batch-card-name {
    font-size: 0.75rem;
    color: var(--text);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.batch-card-name:hover {
    color: var(--accent);
}

.batch-card-size {
    font-size: 0.6875rem;
    color: var(--text-dim);
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content img {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 4px;
    user-select: none;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    z-index: 1001;
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
    padding: 0;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 1;
}

.lightbox-close {
    top: 1rem;
    right: 1.25rem;
    font-size: 2.5rem;
    line-height: 1;
}

.lightbox-prev,
.lightbox-next {
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
    line-height: 1;
}

.lightbox-prev {
    left: 1rem;
}

.lightbox-next {
    right: 1rem;
}

.lightbox-footer {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(0, 0, 0, 0.6);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.8125rem;
    color: #fff;
    white-space: nowrap;
}

.lightbox-dl-btn {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.8125rem;
}

.lightbox-dl-btn:hover {
    text-decoration: underline;
}

/* Download page */
.file-card {
    margin-top: 0;
    padding: 1.5rem;
    background: var(--surface);
    border-radius: 12px;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

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

.thumbnail {
    max-width: 160px;
    max-height: 160px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--bg);
    display: block;
    margin: 0 auto;
}

.audio-preview {
    width: 100%;
    border-radius: 8px;
    background: var(--bg);
    padding: 1rem;
}

.pdf-preview {
    width: 100%;
    height: 200px;
    border: none;
    border-radius: 8px;
    background: var(--bg);
}

.thumb-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    color: var(--text-dim);
    background: var(--bg);
    border-radius: 8px;
}

.file-title {
    font-size: 1rem;
    font-weight: 600;
    word-break: break-all;
    line-height: 1.4;
}

.file-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.meta-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.8125rem;
}

.meta-label {
    color: var(--text-dim);
}

.file-actions {
    display: flex;
    gap: 0.75rem;
}

.file-actions .btn {
    flex: 1;
    text-align: center;
    text-decoration: none;
    margin-top: 0;
}

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

.btn-secondary:hover {
    background: #3a3a3a;
}