/* ============================================
   外贸单证核对工具 - 样式表
   简洁实用工具风格，无营销元素
   ============================================ */

:root {
    --color-bg: #f8f9fa;
    --color-surface: #ffffff;
    --color-border: #dee2e6;
    --color-text: #212529;
    --color-text-secondary: #6c757d;
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-red: #dc2626;
    --color-red-bg: #fef2f2;
    --color-green: #16a34a;
    --color-green-bg: #f0fdf4;
    --color-yellow: #ca8a04;
    --color-yellow-bg: #fefce8;
    --radius: 6px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* 标题 */
h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.subtitle {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: 32px;
}

/* 上传区域 */
.upload-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

.upload-item {
    margin-bottom: 20px;
}

.upload-item:last-child {
    margin-bottom: 0;
}

.upload-label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.upload-label .doc-index {
    display: inline-block;
    width: 22px;
    height: 22px;
    line-height: 22px;
    text-align: center;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
    margin-right: 6px;
}

.upload-input-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.upload-input-wrap input[type="file"] {
    flex: 1;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.file-name {
    font-size: 0.8rem;
    color: var(--color-primary);
    min-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 错误提示 */
.error-msg {
    color: var(--color-red);
    font-size: 0.85rem;
    margin-top: 12px;
    display: none;
}

.error-msg.visible {
    display: block;
}

/* 主按钮 */
.btn-primary {
    display: block;
    width: 100%;
    padding: 14px 24px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    margin-top: 24px;
    transition: background 0.2s;
}

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

.btn-primary:disabled {
    background: #93c5fd;
    cursor: not-allowed;
}

/* 底部说明 */
.footer-note {
    margin-top: 32px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-align: center;
    line-height: 1.5;
}

/* ============================================
   报告页样式
   ============================================ */

.report-header {
    margin-bottom: 24px;
}

.report-summary {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

.summary-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.summary-badge.red {
    background: var(--color-red-bg);
    color: var(--color-red);
}

.summary-badge.green {
    background: var(--color-green-bg);
    color: var(--color-green);
}

.summary-badge.yellow {
    background: var(--color-yellow-bg);
    color: var(--color-yellow);
}

/* 规则分组 */
.rule-group {
    margin-bottom: 24px;
}

.rule-group-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-border);
}

.rule-group-title.red { border-color: var(--color-red); }
.rule-group-title.green { border-color: var(--color-green); }
.rule-group-title.yellow { border-color: var(--color-yellow); }

/* 规则条目 */
.rule-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 8px;
    box-shadow: var(--shadow);
}

.rule-item-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.rule-status-icon {
    font-size: 1.1rem;
}

.rule-id {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.rule-name {
    font-weight: 500;
    font-size: 0.95rem;
}

.rule-values {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
    padding: 8px;
    background: var(--color-bg);
    border-radius: 4px;
    font-family: "SF Mono", "Fira Code", monospace;
}

.rule-message {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

/* 返回按钮 */
.btn-secondary {
    display: inline-block;
    padding: 10px 20px;
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    margin-top: 24px;
    transition: background 0.2s;
}

.btn-secondary:hover {
    background: var(--color-bg);
}

/* 加载状态 */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    z-index: 100;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

.loading-overlay.visible {
    display: flex;
}

/* 空状态 */
.empty-group {
    text-align: center;
    padding: 16px;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
}

/* ============================================
   单上传区（拖拽 + 多选）
   ============================================ */
.drop-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 36px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s, background .15s;
    outline: none;
}
.drop-zone:hover,
.drop-zone:focus,
.drop-zone.dragover {
    border-color: var(--color-primary);
    background: var(--color-green-bg);
}
.file-input-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}
.drop-icon { font-size: 1.8rem; margin-bottom: 8px; }
.drop-title { font-size: 0.95rem; font-weight: 500; }
.drop-hint { font-size: 0.8rem; color: var(--color-text-secondary); margin-top: 4px; }

.file-list { list-style: none; margin-top: 16px; }
.file-list:empty { margin-top: 0; }
.file-list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 8px;
    background: var(--color-bg);
}
.file-list-name {
    flex: 1;
    font-size: 0.85rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.file-list-size {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    white-space: nowrap;
}
.file-list-remove {
    border: none;
    background: transparent;
    color: var(--color-red);
    font-size: 0.8rem;
    cursor: pointer;
    padding: 2px 6px;
}
.file-list-remove:hover { text-decoration: underline; }