/* NexQ 前端样式 */

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

:root {
  --primary: #1a73e8;
  --primary-dark: #1557b0;
  --bg: #f4f6f9;
  --white: #ffffff;
  --text: #202124;
  --text-secondary: #5f6368;
  --border: #dadce0;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --sidebar-width: 240px;
}

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

/* Header */
header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.logo h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}
.logo span {
  font-size: 13px;
  color: var(--text-secondary);
}

/* 用户栏 */
.user-bar {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-secondary);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--primary);
  text-decoration: none;
  margin-right: 8px;
  font-weight: 600;
  padding: 5px 14px;
  border: 1.5px solid var(--primary);
  border-radius: 6px;
  transition: all 0.2s;
}
.back-link:hover {
  background: var(--primary);
  color: #fff;
}

/* 顶栏图标按钮（修改密码、系统管理） */
.btn-changepwd,
.btn-admin {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--white);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-changepwd:hover,
.btn-admin:hover {
  background: #eff6ff;
  border-color: #93c5fd;
  color: var(--primary);
}

/* 钥匙图标去色 — 简约风格 */
.icon-key {
  filter: grayscale(1);
  opacity: 0.5;
  transition: all 0.2s;
}
.btn-changepwd:hover .icon-key {
  filter: grayscale(0);
  opacity: 0.8;
}

.btn-logout {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--white);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 12px;
  transition: all 0.2s;
}
.btn-logout:hover {
  background: #fee2e2;
  border-color: #fca5a5;
  color: #dc2626;
}

/* Layout */
.layout {
  display: flex;
  min-height: calc(100vh - 56px);
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--white);
  border-right: 1px solid var(--border);
  padding: 16px 0;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

/* 当前模块名标签（不可点击） */
.nav-module-label {
  display: flex;
  align-items: center;
  padding: 14px 24px;
  color: var(--primary);
  font-size: 15px;
  font-weight: 700;
  border-left: 3px solid var(--primary);
  background: #e8f0fe;
  margin-bottom: 8px;
  cursor: default;
  user-select: none;
}

.nav-module-label .nav-icon {
  font-size: 20px;
  margin-right: 10px;
}

/* 系统管理入口保留点击能力 */
.sidebar .nav-item {
  display: flex;
  align-items: center;
  padding: 12px 24px;
  text-decoration: none;
  color: var(--text);
  font-size: 14px;
  transition: background 0.15s;
  border-left: 3px solid transparent;
}

.sidebar .nav-item:hover {
  background: #e8f0fe;
}

.sidebar .nav-item.active {
  background: #e8f0fe;
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 600;
}

.nav-icon { font-size: 18px; margin-right: 10px; }

.nav-footer {
  margin-top: auto;
  padding: 16px 24px;
}

.api-link {
  font-size: 12px;
  color: var(--text-secondary);
  text-decoration: none;
}

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

/* Admin nav */
.admin-only {
  margin-top: 8px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

/* Content */
.content {
  flex: 1;
  padding: 24px 32px;
  max-width: 960px;
}

.module { display: none; }
.module.active { display: block; }

.module h2 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary);
}

/* Form */
.calc-form {
  background: var(--white);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.form-group .required { color: #ea4335; }

.form-group input,
.form-group select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
  background: var(--white);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.12);
}

.form-group small {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.hidden { display: none !important; }

/* Buttons */
.btn {
  padding: 10px 28px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.btn:disabled { opacity: 0.6; cursor: not-allowed; }

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

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

.btn-download {
  background: #34a853;
  color: white;
  text-decoration: none;
  display: inline-block;
}

.btn-download:hover { background: #2d9249; }

/* Spinner */
.spinner {
  font-size: 14px;
  color: var(--primary);
  margin-left: 12px;
}

/* Results */
.result-area {
  margin-top: 24px;
}

.result-summary {
  background: var(--white);
  border-radius: 8px;
  padding: 20px 24px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.result-summary h3 {
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--primary);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.summary-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg);
  border-radius: 4px;
  font-size: 13px;
}

.summary-item .label { color: var(--text-secondary); }
.summary-item .value { font-weight: 600; }

.actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.result-markdown {
  background: var(--white);
  border-radius: 8px;
  padding: 24px 28px;
  box-shadow: var(--shadow);
  font-size: 14px;
  line-height: 1.7;
}

.result-markdown h2 { font-size: 18px; margin: 20px 0 10px; border-bottom: none; }
.result-markdown h3 { font-size: 15px; margin: 16px 0 8px; }
.result-markdown h4 { font-size: 14px; margin: 12px 0 6px; }
.result-markdown table {
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0 16px;
  font-size: 13px;
}
.result-markdown th,
.result-markdown td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  text-align: left;
}
.result-markdown th { background: var(--bg); font-weight: 600; }
.result-markdown li { margin-bottom: 2px; }
.result-markdown pre { background: var(--bg); padding: 12px; border-radius: 4px; overflow-x: auto; }

/* 方案文档预览标题行 + 复制按钮 */
.md-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.md-title-row h3 {
  margin: 0;
  flex: 1;
}
.btn-copy-md {
  padding: 4px 12px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
  white-space: nowrap;
}
.btn-copy-md:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: #e8f0fe;
}
.btn-copy-md.copied {
  color: #34a853;
  border-color: #34a853;
  background: #e6f4ea;
  pointer-events: none;
}

/* Error */
.result-error {
  background: #fce8e6;
  color: #c5221f;
  border-radius: 8px;
  padding: 16px 20px;
  margin-top: 16px;
  font-size: 14px;
}

/* ── 向导式步骤 (Wizard) ── */
.wizard {
  max-width: 620px;
}

.wizard-step {
  display: none;
  background: var(--white);
  border-radius: 10px;
  padding: 28px 32px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  animation: wizardFadeIn 0.35s ease;
}

.wizard-step.active {
  display: block;
}

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

/* 步骤编号徽章 */
.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
}

/* 步骤问题文本 */
.step-question {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
}

/* ── 选项卡片（二选一） ── */
.choice-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* 多选模式：更多列、更紧凑的卡片 */
.choice-multi {
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.choice-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px 16px;
  border: 2px solid var(--border);
  border-radius: 10px;
  background: var(--white);
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.choice-multi .choice-card {
  padding: 7px 6px;
  position: relative;
  border-radius: 8px;
}

.choice-card:hover {
  border-color: var(--primary);
  box-shadow: 0 2px 12px rgba(26,115,232,0.12);
}

.choice-card.selected {
  border-color: var(--primary);
  background: #e8f0fe;
}

/* 多选模式下选中标记 */
.choice-multi .choice-card.selected::after {
  content: '✓';
  position: absolute;
  top: 3px;
  right: 5px;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
}

.choice-icon {
  font-size: 32px;
  margin-bottom: 8px;
}

.choice-multi .choice-icon {
  font-size: 18px;
  margin-bottom: 2px;
}

.choice-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.choice-multi .choice-label {
  font-size: 11px;
  margin-bottom: 1px;
}

.choice-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.choice-multi .choice-desc {
  font-size: 10px;
  line-height: 1.3;
}

/* 自定义输入组 (多选步骤中) */
.multi-custom-group {
  margin-top: 12px;
}

.multi-custom-group .wizard-input {
  width: 100%;
}

/* 多选确认按钮 */
.btn-confirm-multi {
  margin-top: 16px;
}

/* ── 数值输入组 ── */
.input-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.wizard-input {
  flex: 1;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}

.wizard-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

.input-unit {
  font-size: 14px;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* 上一步/返回按钮 */
.btn-back {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 12px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}
.btn-back:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: #e8f0fe;
}

.btn-confirm {
  padding: 10px 22px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}

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

.step-hint {
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* 步骤提示图片（引导用户识别设备） */
.step-image {
  display: block;
  margin-top: 14px;
  max-width: 100%;
  max-height: 260px;
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
  object-fit: contain;
  background: #fafafa;
}

/* ── 步骤摘要 ── */
.step-summary {
  background: var(--bg);
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 16px;
  font-size: 13px;
  line-height: 1.8;
}

.step-summary .summary-row {
  display: flex;
  justify-content: space-between;
}

.step-summary .summary-label {
  color: var(--text-secondary);
}

.step-summary .summary-value {
  font-weight: 600;
}

/* 生成按钮 */
.btn-generate {
  padding: 12px 36px;
  font-size: 15px;
}

/* ── "再来一个项目" 重置按钮区域 ── */
.wizard-reset-actions {
  text-align: center;
  padding: 28px 0;
  animation: wizardFadeIn 0.35s ease;
}

.btn-reset-project {
  padding: 14px 48px;
  background: var(--white);
  color: var(--primary);
  border: 2px solid var(--primary);
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.btn-reset-project:hover {
  background: #e8f0fe;
  box-shadow: 0 2px 12px rgba(26,115,232,0.15);
  transform: translateY(-1px);
}

.btn-reset-project:active {
  transform: translateY(0);
}

/* 响应式：小屏幕单列 */

/* Responsive */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .nav-label, .nav-footer { display: none; }
  .nav-item { padding: 12px 16px; justify-content: center; }
  .nav-icon { margin-right: 0; font-size: 22px; }
  .content { padding: 16px; }
}