/* ============================================
   AI 智能营养分析助手 - 样式表
   简洁科技风格 | 响应式 | 明/暗主题
   ============================================ */

:root {
  /* 主题变量 (默认: 暗色科技风) */
  --bg: #0b0f1a;
  --bg-gradient-1: #0b0f1a;
  --bg-gradient-2: #141b2e;
  --card-bg: rgba(20, 28, 48, 0.72);
  --card-border: rgba(90, 140, 255, 0.18);
  --card-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  --text: #e7edf7;
  --text-dim: #9aa7c0;
  --text-faint: #6b7690;
  --primary: #4f8cff;
  --primary-glow: rgba(79, 140, 255, 0.45);
  --success: #2fd58f;
  --warning: #ffb347;
  --danger: #ff647c;
  --input-bg: rgba(10, 16, 30, 0.75);
  --input-border: rgba(90, 140, 255, 0.22);
  --dropzone-bg: rgba(79, 140, 255, 0.05);
  --dropzone-border: rgba(79, 140, 255, 0.35);
  --chip-bg: rgba(79, 140, 255, 0.14);
  --hover-raise: translateY(-3px);
  --radius: 16px;
  --radius-sm: 10px;
}

/* 亮色主题 */
[data-theme="light"] {
  --bg: #eef1f8;
  --bg-gradient-1: #eef1f8;
  --bg-gradient-2: #ffffff;
  --card-bg: rgba(255, 255, 255, 0.86);
  --card-border: rgba(30, 60, 120, 0.12);
  --card-shadow: 0 16px 44px rgba(20, 40, 100, 0.12);
  --text: #16233d;
  --text-dim: #5a6a87;
  --text-faint: #8b98b3;
  --primary: #2f6bff;
  --primary-glow: rgba(47, 107, 255, 0.28);
  --success: #0fa86b;
  --warning: #f0901a;
  --danger: #e03555;
  --input-bg: rgba(255, 255, 255, 0.9);
  --input-border: rgba(47, 107, 255, 0.22);
  --dropzone-bg: rgba(47, 107, 255, 0.04);
  --dropzone-border: rgba(47, 107, 255, 0.32);
  --chip-bg: rgba(47, 107, 255, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(160deg, var(--bg-gradient-1), var(--bg-gradient-2));
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.4s ease, color 0.4s ease;
  padding-bottom: 40px;
}

/* ===== 顶部导航 ===== */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  max-width: 960px;
  margin: 0 auto;
}

.navbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.3px;
}

.navbar .brand .logo {
  font-size: 1.5rem;
}

.navbar .brand .brand-sub {
  font-size: 0.7rem;
  color: var(--text-faint);
  font-weight: 400;
  background: var(--chip-bg);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid var(--card-border);
}

.theme-toggle {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text);
  border-radius: 30px;
  width: 42px;
  height: 42px;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.theme-toggle:hover {
  transform: scale(1.08);
  box-shadow: 0 0 20px var(--primary-glow);
}

/* ===== 导航右侧操作区（登录/注册/用户）===== */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 身份选择区（未登录时显示） */
.auth-choice {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.auth-btn {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text);
  border-radius: 30px;
  padding: 8px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.auth-btn:hover {
  transform: translateY(-1px);
  border-color: var(--primary);
  box-shadow: 0 6px 18px var(--primary-glow);
}

.auth-btn-secondary {
  background: linear-gradient(120deg, var(--primary), #3a7bff);
  border: none;
  color: #fff;
  box-shadow: 0 6px 18px var(--primary-glow);
}

/* 游客按钮 */
.auth-btn-guest {
  background: linear-gradient(120deg, #22c55e, #16a34a);
  border: none;
  color: #fff;
  box-shadow: 0 6px 18px rgba(34, 197, 94, 0.35);
}

.auth-btn-guest:hover {
  border-color: #22c55e;
  box-shadow: 0 6px 18px rgba(34, 197, 94, 0.45);
}

.auth-btn-logout {
  padding: 6px 14px;
  font-size: 0.8rem;
  background: rgba(255, 100, 124, 0.14);
  border-color: rgba(255, 100, 124, 0.3);
  color: var(--danger);
}

.auth-btn-logout:hover {
  border-color: var(--danger);
  box-shadow: 0 6px 18px rgba(255, 100, 124, 0.3);
}

/* 登录后用户信息条 */
.user-area {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.user-chip {
  background: var(--chip-bg);
  border: 1px solid var(--card-border);
  border-radius: 30px;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 160px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== 认证弹窗（登录/注册）===== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 22, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 28px 24px 22px;
  max-width: 400px;
  width: 100%;
  animation: fadeUp 0.3s ease;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 800;
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--input-bg);
  color: var(--text-dim);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, color 0.2s ease;
}

.modal-close:hover {
  background: var(--danger);
  color: #fff;
}

/* 登录/注册表单 */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.auth-field > span {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-weight: 600;
}

.auth-field input {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
}

.auth-field input::placeholder {
  color: var(--text-faint);
}

.auth-field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.auth-submit {
  width: 100%;
  margin-top: 6px;
  min-width: 0;
}

.auth-switch {
  margin-top: 16px;
  text-align: center;
  font-size: 0.84rem;
  color: var(--text-dim);
}

.auth-switch a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.auth-switch a:hover {
  text-decoration: underline;
}


/* ===== 主容器 ===== */
.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 10px 20px;
}

.hero {
  text-align: center;
  margin: 18px 0 28px;
}

.hero h1 {
  font-size: 1.9rem;
  font-weight: 800;
  background: linear-gradient(120deg, var(--primary), #9bc0ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.hero .subtitle {
  color: var(--text-dim);
  font-size: 0.98rem;
}

.hero .subtitle b {
  color: var(--primary);
}

/* ===== 卡片 ===== */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 24px;
  margin-bottom: 22px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title .icon {
  font-size: 1.2rem;
}

/* ===== 上传区域 ===== */
.upload-zone {
  border: 2px dashed var(--dropzone-border);
  border-radius: var(--radius);
  background: var(--dropzone-bg);
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
  position: relative;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--primary);
  background: rgba(79, 140, 255, 0.09);
}

.upload-zone.dragover {
  transform: scale(1.01);
}

.upload-zone .upload-icon {
  font-size: 3rem;
  margin-bottom: 10px;
  display: block;
}

.upload-zone .upload-hint {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.upload-zone .upload-hint b {
  color: var(--primary);
}

.upload-zone .upload-format {
  color: var(--text-faint);
  font-size: 0.8rem;
}

/* 上传按钮组 */
.upload-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-top: 18px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--card-border);
  background: var(--input-bg);
  color: var(--text);
  padding: 12px 22px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: var(--hover-raise);
  border-color: var(--primary);
  box-shadow: 0 8px 24px var(--primary-glow);
}

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

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-primary {
  background: linear-gradient(120deg, var(--primary), #3a7bff);
  border: none;
  color: #fff;
  min-width: 200px;
  box-shadow: 0 8px 24px var(--primary-glow);
}

.btn-primary:hover {
  box-shadow: 0 10px 30px var(--primary-glow);
}

.btn-outline {
  background: transparent;
}

/* 已保存状态（保存成功后） */
.btn.saved {
  background: linear-gradient(120deg, var(--success), #1db877);
  border: none;
  color: #fff;
  box-shadow: 0 8px 24px rgba(47, 213, 143, 0.35);
}
.btn.saved:hover {
  box-shadow: 0 10px 30px rgba(47, 213, 143, 0.45);
}

/* ===== 图片预览 ===== */
.preview-section {
  margin-top: 22px;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.preview-wrap {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #0a0e1a;
  max-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-wrap img {
  max-width: 100%;
  max-height: 360px;
  display: block;
  object-fit: contain;
}

.preview-remove {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.preview-remove:hover {
  background: var(--danger);
}

/* 分析按钮 */
.action-row {
  text-align: center;
  margin-top: 22px;
}

/* ===== 加载动画 ===== */
.loading-overlay {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 30px 0;
  text-align: center;
}

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

.loading-overlay .spinner {
  width: 52px;
  height: 52px;
  border: 4px solid var(--card-border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-overlay .loading-text {
  color: var(--text-dim);
  font-size: 0.95rem;
}

.loading-overlay .loading-sub {
  color: var(--text-faint);
  font-size: 0.8rem;
  max-width: 380px;
}

/* 进度条 (上传) */
.progress-track {
  width: 80%;
  max-width: 300px;
  height: 6px;
  border-radius: 3px;
  background: var(--input-bg);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), #9bc0ff);
  transition: width 0.3s ease;
  box-shadow: 0 0 12px var(--primary-glow);
}

/* ===== 结果区域 ===== */
.result-section {
  display: none;
}

.result-section.active {
  display: block;
  animation: fadeUp 0.5s ease;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 类型标签 */
.result-type {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.result-type.type-recipe {
  background: rgba(47, 213, 143, 0.16);
  color: var(--success);
  border: 1px solid rgba(47, 213, 143, 0.35);
}

.result-type.type-food {
  background: rgba(79, 140, 255, 0.16);
  color: var(--primary);
  border: 1px solid rgba(79, 140, 255, 0.4);
}

.result-type.type-mixed {
  background: rgba(255, 179, 71, 0.16);
  color: var(--warning);
  border: 1px solid rgba(255, 179, 71, 0.4);
}

.result-type.type-unknown {
  background: rgba(154, 167, 192, 0.16);
  color: var(--text-dim);
  border: 1px solid var(--card-border);
}

.result-summary {
  color: var(--text-dim);
  font-size: 0.92rem;
  background: var(--dropzone-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-bottom: 18px;
}

/* 区块标题 */
.block-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 20px 0 12px;
  display: flex;
  align-items: center;
  gap: 7px;
}

/* 食材列表 */
.ingredient-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ingredient-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--chip-bg);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 6px 14px;
  font-size: 0.88rem;
}

.ingredient-chip.editable:hover {
  border-color: var(--primary);
}

.ingredient-chip .chip-remove {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: none;
  background: rgba(100, 116, 150, 0.35);
  color: var(--text);
  font-size: 0.75rem;
  line-height: 1;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
}

.ingredient-chip.editable .chip-remove {
  display: inline-flex;
}

.ingredient-chip .chip-remove:hover {
  background: var(--danger);
  color: #fff;
}

.add-ingredient {
  background: transparent;
  border: 1px dashed var(--primary);
  color: var(--primary);
  border-radius: 24px;
  padding: 6px 14px;
  font-size: 0.88rem;
  cursor: pointer;
}

.add-ingredient:hover {
  background: var(--chip-bg);
}

/* 食材空态 */
.empty-hint {
  color: var(--text-faint);
  font-size: 0.88rem;
  font-style: italic;
}

/* 营养成分 */
.nutrition-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.nutrition-card {
  background: var(--input-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nutrition-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px var(--primary-glow);
}

.nutrition-card .value {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--primary);
}

.nutrition-card .label {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 4px;
}

/* 估算营养小卡片 */
.nutrition-total {
  background: var(--dropzone-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-top: 16px;
}

/* 食谱文字 */
.recipe-box {
  white-space: pre-wrap;
  color: var(--text);
  font-size: 0.92rem;
  line-height: 1.75;
  background: var(--input-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 16px;
  max-height: 300px;
  overflow-y: auto;
}

/* 操作按钮 */
.result-actions {
  display: flex;
  gap: 14px;
  margin-top: 22px;
  flex-wrap: wrap;
}

/* ===== Toast 提示 ===== */
.toast-container {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 92%;
  max-width: 400px;
  align-items: center;
}

.toast {
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  animation: toastIn 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.toast.success {
  background: linear-gradient(120deg, #1db87a, #27c98a);
}

.toast.error {
  background: linear-gradient(120deg, #e23b57, #ff4d6d);
}

.toast.info {
  background: linear-gradient(120deg, #2f6bff, #4f8cff);
}

.toast.warning {
  background: linear-gradient(120deg, #df8a12, #ffb347);
}

.toast.hide {
  animation: toastOut 0.3s ease forwards;
}

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

@keyframes toastOut {
  to {
    opacity: 0;
    transform: translateY(-12px);
  }
}

/* ===== 历史记录 ===== */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: var(--input-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.history-item:hover {
  border-color: var(--primary);
  transform: translateX(3px);
}

.history-item .hi-thumb {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
  background: #0a0e1a;
}

.history-item .hi-info {
  flex: 1;
  min-width: 0;
}

.history-item .hi-type {
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--primary);
}

.history-item .hi-meta {
  font-size: 0.78rem;
  color: var(--text-faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-item .hi-time {
  font-size: 0.72rem;
  color: var(--text-faint);
  flex-shrink: 0;
}

.history-empty {
  color: var(--text-faint);
  text-align: center;
  font-size: 0.88rem;
  padding: 20px 0;
}

.history-loading {
  color: var(--text-faint);
  text-align: center;
  font-size: 0.88rem;
  padding: 20px 0;
  animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

#clearHistoryBtn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.history-actions {
  margin-top: 14px;
  text-align: right;
}

/* ===== 页脚 ===== */
.footer {
  text-align: center;
  color: var(--text-faint);
  font-size: 0.78rem;
  margin-top: 26px;
  padding: 0 20px;
}

/* ===== 响应式 ===== */
@media (max-width: 640px) {
  body {
    padding-bottom: 24px;
  }

  .navbar {
    padding: 12px 16px;
  }

  .nav-actions {
    gap: 6px;
  }

  .auth-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }

  .user-chip {
    max-width: 110px;
    padding: 5px 10px;
    font-size: 0.78rem;
  }

  .brand-sub {
    display: none;
  }

  .modal-box {
    padding: 22px 18px 18px;
  }

  .container {
    padding: 6px 14px;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .card {
    padding: 18px;
  }

  .upload-zone {
    padding: 26px 14px;
  }

  .upload-buttons .btn {
    padding: 11px 18px;
    font-size: 0.88rem;
    flex: 1;
    min-width: 130px;
  }

  .nutrition-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

  .result-actions {
    flex-direction: column;
  }

  .result-actions .btn {
    width: 100%;
  }
}

/* ===== 游客身份 / 升级提示 ===== */
.guest-tag {
  background: var(--warning);
  color: #1a1406;
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  display: inline-block;
  margin-right: 6px;
  vertical-align: middle;
}

.guest-upgrade-hint {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--chip-bg);
  border: 1px solid var(--card-border);
  font-size: 0.85rem;
  color: var(--text);
}

.guest-upgrade-hint strong {
  color: var(--warning);
}

.guest-upgrade-hint a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.guest-upgrade-hint a:hover {
  text-decoration: underline;
}