/* ============ Preview Modal ============ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 24px;
    animation: fadeIn 0.18s var(--ease);
}

.modal-overlay[hidden] {
    display: none;
}

.modal-container {
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    max-width: 90vw;
    max-height: 90vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.22s var(--ease-snap);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(12px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.modal-title {
    font-family: var(--font-display);
    letter-spacing: -0.01em;
    font-size: 16px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text);
}

.modal-body {
    padding: 20px;
    overflow: auto;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.modal-body pre {
    width: 100%;
    max-height: 70vh;
    overflow: auto;
    background: var(--bg);
    color: var(--text);
    padding: 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-family: 'SF Mono', Monaco, Consolas, 'Courier New', monospace;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-all;
    border: 1px solid var(--border);
    margin: 0;
}

/* ============ Share modal ============ */
.share-form .form-group {
    margin-bottom: 14px;
}
.share-form input[type="number"],
.share-form input[type="text"] {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    background: var(--surface);
    color: var(--text);
}
.share-result {
    margin-top: 20px;
    padding: 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}
.share-result-label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.share-url-row {
    display: flex;
    gap: 8px;
}
.share-url-row input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 13px;
    background: white;
}
.share-hint {
    margin: 8px 0 0;
    font-size: 12px;
    color: var(--text-muted);
}
.share-existing {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}
.share-existing-title {
    font-size: 14px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 12px;
}
.share-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 240px;
    overflow-y: auto;
}
.share-list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
}
.share-list-info {
    flex: 1;
    min-width: 0;
}
.share-list-file {
    font-weight: 500;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.share-list-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}