/* ============================================
   css/style.css - 全局样式
   所有页面共用，统一生日卡片风格
   修改颜色只需改这里 :root 里的变量
   ============================================ */

/* ---------- 颜色变量（改颜色只改这里） ---------- */
:root {
  --bg-color: #FFF8F5;        /* 页面背景 - 暖白 */
  --card-bg: #FFFFFF;         /* 卡片背景 - 纯白 */
  --primary: #F48C9E;         /* 主色 - 柔粉 */
  --primary-dark: #E07082;    /* 主色深 - 按钮悬停 */
  --primary-light: #FCE4EC;   /* 主色浅 - 背景点缀 */
  --accent: #FFD54F;          /* 点缀色 - 明亮黄 */
  --text: #5D4037;            /* 正文 - 暖棕 */
  --text-light: #9E9E9E;      /* 辅助文字 - 灰色 */
  --border: #F0E0E0;          /* 边框 - 浅粉 */
  --shadow: rgba(0, 0, 0, 0.06);
}

/* ---------- 基础重置 ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  background-color: var(--bg-color);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  padding: 20px;
}

/* ---------- 容器 ---------- */
.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 10px;
}

/* ---------- 首页头部 ---------- */
.main-header {
  text-align: center;
  padding: 60px 0 30px;
}

.main-header .decoration {
  font-size: 64px;
  margin-bottom: 10px;
}

.main-header h1 {
  font-size: 28px;
  color: var(--text);
  margin-bottom: 12px;
}

.welcome-text {
  font-size: 16px;
  color: var(--text-light);
}

/* ---------- 通用页面标题 ---------- */
.page-header {
  text-align: center;
  padding: 30px 0 20px;
}

.page-header h1 {
  font-size: 24px;
  color: var(--text);
}

.back-link {
  display: inline-block;
  color: var(--primary);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 10px;
}

.back-link:hover {
  text-decoration: underline;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border: none;
  border-radius: 25px;
  font-size: 16px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s, transform 0.1s;
}

.btn:active {
  transform: scale(0.97);
}

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

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

.btn-secondary {
  background-color: #fff;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

/* ---------- 首页操作区 ---------- */
.actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 280px;
  margin: 0 auto;
  padding: 20px 0 40px;
}

.actions .btn {
  text-align: center;
}

/* ---------- 页脚 ---------- */
.main-footer {
  text-align: center;
  padding: 30px 0;
  color: var(--text-light);
  font-size: 14px;
}

.main-footer a {
  color: var(--primary);
  text-decoration: none;
}

.main-footer a:hover {
  text-decoration: underline;
}

/* ---------- 表单 ---------- */
.wish-form {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 24px 20px;
  box-shadow: 0 2px 12px var(--shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.required {
  color: var(--primary);
}

.form-group input[type="text"],
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  color: var(--text);
  background: var(--bg-color);
  outline: none;
  transition: border-color 0.2s;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus {
  border-color: var(--primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.char-count {
  display: block;
  text-align: right;
  font-size: 12px;
  color: var(--text-light);
  margin-top: 4px;
}

/* ---------- 贴纸选择器 ---------- */
.sticker-picker {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sticker-option {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.sticker-option input {
  display: none;
}

.sticker-option span {
  display: inline-block;
  font-size: 30px;
  padding: 6px 10px;
  border-radius: 12px;
  border: 2px solid transparent;
  transition: border-color 0.2s, background-color 0.2s;
}

.sticker-option input:checked + span {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.sticker-option span:hover {
  background-color: var(--primary-light);
}

/* ---------- 复选框 ---------- */
.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-weight: 400 !important;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

/* ---------- 提交按钮 ---------- */
.btn-submit {
  width: 100%;
  font-size: 17px;
  padding: 14px;
  margin-top: 8px;
}

/* ---------- 消息提示 ---------- */
.message-box {
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 15px;
  text-align: center;
}

.message-box.success {
  background-color: #E8F5E9;
  color: #2E7D32;
  border: 1px solid #C8E6C9;
}

.message-box.error {
  background-color: #FFEBEE;
  color: #C62828;
  border: 1px solid #FFCDD2;
}

.message-box.hidden {
  display: none;
}

/* ---------- 祝福墙 ---------- */
.wall-empty {
  text-align: center;
  padding: 60px 0;
  color: var(--text-light);
}

.wall-empty .empty-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.wall-empty p {
  font-size: 16px;
}

.wish-card {
  background: var(--card-bg);
  border-radius: 14px;
  padding: 18px 20px;
  margin-bottom: 14px;
  box-shadow: 0 2px 8px var(--shadow);
  position: relative;
}

.wish-card .card-sticker {
  font-size: 28px;
  margin-bottom: 6px;
}

.wish-card .card-content {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 10px;
  word-break: break-word;
}

.wish-card .card-footer {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-light);
}

.wish-card .card-nickname {
  font-weight: 600;
  color: var(--primary);
}

/* ---------- 加载提示 ---------- */
.loading {
  text-align: center;
  padding: 40px 0;
  color: var(--text-light);
  font-size: 15px;
}

/* ---------- 错误提示 ---------- */
.error-tip {
  text-align: center;
  padding: 40px 0;
  color: #C62828;
  font-size: 15px;
}

/* ---------- 手机适配 ---------- */
@media (max-width: 480px) {
  body {
    padding: 12px;
  }

  .main-header {
    padding: 40px 0 20px;
  }

  .main-header .decoration {
    font-size: 48px;
  }

  .main-header h1 {
    font-size: 22px;
  }

  .wish-form {
    padding: 18px 14px;
  }

  .sticker-option span {
    font-size: 26px;
    padding: 4px 8px;
  }
}