:root {
    --bg: #0f1117;
    --bg-card: #1a1d27;
    --bg-hover: #252936;
    --border: #2d3142;
    --text: #e4e7ec;
    --text-dim: #8b919e;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --danger: #ef4444;
    --success: #10b981;
    --radius: 12px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

.view { min-height: 100vh; }
.hidden { display: none !important; }

/* ===== 登录页 ===== */
#login-view {
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 48px 40px;
    width: 380px;
    text-align: center;
}
.logo { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.subtitle { color: var(--text-dim); margin-bottom: 32px; font-size: 14px; }
.login-card input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 15px;
    margin-bottom: 16px;
    outline: none;
    transition: border-color 0.2s;
}
.login-card input:focus { border-color: var(--primary); }
.login-card button {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}
.login-card button:hover { background: var(--primary-hover); }
.hint { color: var(--text-dim); font-size: 12px; margin-top: 16px; }

/* ===== 主界面 ===== */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 32px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
}
.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}
#site-info { color: var(--text-dim); font-size: 13px; }
.btn-text {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 13px;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.2s;
}
.btn-text:hover { color: var(--text); background: var(--bg-hover); }

/* ===== 上传区 ===== */
.upload-section { padding: 32px; max-width: 1200px; margin: 0 auto; }
.drop-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 48px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg-card);
}
.drop-zone:hover, .drop-zone.dragover {
    border-color: var(--primary);
    background: var(--bg-hover);
}
.drop-icon { font-size: 48px; margin-bottom: 12px; }
.drop-zone p { color: var(--text-dim); margin-bottom: 4px; }
.drop-zone .link { color: var(--primary); cursor: pointer; }

.upload-results { margin-top: 16px; }
.upload-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.upload-item.error { border-color: var(--danger); }
.upload-item.success { border-color: var(--success); }
.upload-item img { width: 40px; height: 40px; object-fit: cover; border-radius: 6px; }
.upload-item .info { flex: 1; min-width: 0; }
.upload-item .info .name { font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.upload-item .info .status { font-size: 12px; color: var(--text-dim); }
.upload-item .info .url { font-size: 12px; color: var(--primary); word-break: break-all; }

/* ===== 图库 ===== */
.gallery-section { padding: 0 32px 48px; max-width: 1200px; margin: 0 auto; }
.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.gallery-header h2 { font-size: 20px; font-weight: 600; }
.gallery-controls { display: flex; align-items: center; gap: 12px; }
#total-info { color: var(--text-dim); font-size: 13px; }
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}
.gallery-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
}
.gallery-item:hover { transform: translateY(-2px); border-color: var(--primary); }
.gallery-item img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    display: block;
    background: var(--bg);
}
.gallery-item .meta { padding: 10px 12px; font-size: 12px; }
.gallery-item .meta .name {
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.gallery-item .meta .size { color: var(--text-dim); margin-top: 2px; }
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 64px;
    color: var(--text-dim);
}

/* ===== 分页 ===== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
}
.pagination button {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}
.pagination button:hover:not(:disabled) { border-color: var(--primary); }
.pagination button:disabled { opacity: 0.4; cursor: default; }
.pagination button.active { background: var(--primary); border-color: var(--primary); }

/* ===== 模态框 ===== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 24px;
}
.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow: auto;
    display: flex;
    flex-direction: column;
}
.modal-content img { max-width: 100%; max-height: 60vh; object-fit: contain; background: var(--bg); }
.modal-info { padding: 20px; }
.modal-links { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.modal-links label { width: 70px; color: var(--text-dim); font-size: 13px; }
.modal-links input {
    flex: 1;
    padding: 8px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 13px;
    outline: none;
}
.modal-links input:focus { border-color: var(--primary); }
.btn-small {
    background: var(--bg-hover);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    white-space: nowrap;
    transition: all 0.2s;
}
.btn-small:hover { border-color: var(--primary); color: var(--primary); }
.modal-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
#modal-meta { color: var(--text-dim); font-size: 12px; }
.btn-danger {
    background: var(--danger);
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    transition: opacity 0.2s;
}
.btn-danger:hover { opacity: 0.85; }

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    z-index: 200;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}