/**
* 文件名：submission.css
* 作用：铜鼓之声投稿引导系统样式（响应式布局版）
* 版本：1.1.0
* 特点：移除放大动画、移动端竖向底部卡片、桌面端横向居中卡片、深色模式适配
*/

/* ===============================
投稿模态框基础样式
=============================== */
.submission-modal {
  position: fixed;
  inset: 0;
  z-index: 5000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  pointer-events: none;
}

.submission-modal.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.submission-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: opacity var(--transition-normal);
}

/* ===============================
模态框内容卡片 - 桌面端默认样式（横向居中）
=============================== */
.submission-modal-content {
  position: relative;
  width: 100%;
  max-width: 520px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  /* 核心修复：移除放大动画，使用淡入 + 轻微上移 */
  transform: translateY(12px);
  transition: transform var(--transition-normal);
  max-height: 90vh;
  overflow-y: auto;
}

.submission-modal.active.ready .submission-modal-content {
  transform: translateY(0);
}

/* 关闭按钮 */
.submission-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: none;
  background: var(--bg-secondary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.submission-modal-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  transform: scale(1.05);
}

/* ===============================
头部区域
=============================== */
.submission-modal-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.submission-modal-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-hover));
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-primary);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.submission-modal-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.01em;
}

/* ===============================
主体内容区域 - 桌面端横向布局
=============================== */
.submission-modal-body {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* 重要提示卡片 */
.submission-notice {
  display: flex;
  gap: 12px;
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  align-items: flex-start;
}

.submission-notice svg {
  flex-shrink: 0;
  color: var(--accent-primary);
  margin-top: 2px;
}

.submission-notice-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.submission-notice-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* 操作按钮 */
.submission-actions {
  display: flex;
  justify-content: center;
}

.submission-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 14px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  border: none;
  white-space: nowrap;
}

.submission-btn-primary {
  background: var(--accent-primary);
  color: var(--bg-primary);
  box-shadow: 0 4px 14px var(--accent-glow);
}

.submission-btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--accent-glow);
}

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

.submission-btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.submission-btn-secondary:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* 分割线 */
.submission-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-tertiary);
  font-size: 0.85rem;
  font-weight: 500;
}

.submission-divider::before,
.submission-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-light);
}

/* 邮箱区域 */
.submission-email-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.submission-email-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}

.submission-email-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-fast);
  width: 100%;
  max-width: 360px;
  justify-content: center;
}

.submission-email-link:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

.submission-email-address {
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.submission-email-hint {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin: 0;
}

/* 底部区域 */
.submission-modal-footer {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: center;
}

/* ===============================
深色模式适配
=============================== */
[data-theme="dark"] .submission-modal-content {
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .submission-modal-icon {
  box-shadow: 0 8px 24px rgba(244, 244, 245, 0.15);
}

/* ===============================
移动端适配 - 竖向底部卡片样式
=============================== */
@media (max-width: 768px) {
  .submission-modal {
    padding: 16px;
    align-items: flex-end; /* 核心：底部对齐 */
  }
  
  .submission-modal-content {
    max-width: 100%;
    /* 核心：底部圆角 + 顶部直角，形成卡片感 */
    border-radius: 20px 20px 0 0;
    padding: 24px 20px 32px;
    /* 核心：初始位置在屏幕外底部 */
    transform: translateY(100%);
    /* 核心：移除 scale 动画，仅使用垂直位移 */
    transition: transform var(--transition-normal);
    max-height: 85vh;
  }
  
  .submission-modal.active.ready .submission-modal-content {
    /* 核心：仅垂直上移至原位 */
    transform: translateY(0);
  }
  
  /* 头部居中 */
  .submission-modal-header {
    padding-bottom: 16px;
  }
  
  .submission-modal-title {
    font-size: 1.2rem;
  }
  
  /* 内容区域适配 */
  .submission-notice {
    padding: 14px;
    gap: 10px;
  }
  
  .submission-notice-text {
    font-size: 0.88rem;
  }
  
  .submission-btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
  
  .submission-email-link {
    padding: 12px 16px;
    font-size: 0.85rem;
  }
  
  .submission-email-address {
    font-size: 0.85rem;
  }
  
  /* 分割线优化 */
  .submission-divider {
    gap: 12px;
    font-size: 0.8rem;
  }
  
  /* 底部按钮组 */
  .submission-modal-footer {
    margin-top: 16px;
    padding-top: 16px;
  }
}

/* ===============================
小屏手机深度适配
=============================== */
@media (max-width: 480px) {
  .submission-modal {
    padding: 12px;
  }
  
  .submission-modal-content {
    border-radius: 16px 16px 0 0;
    padding: 20px 16px 28px;
  }
  
  .submission-modal-title {
    font-size: 1.1rem;
  }
  
  .submission-modal-icon {
    width: 56px;
    height: 56px;
  }
  
  .submission-notice {
    padding: 12px;
  }
  
  .submission-notice-text {
    font-size: 0.85rem;
  }
  
  .submission-btn {
    padding: 9px 18px;
    font-size: 0.88rem;
  }
  
  .submission-email-link {
    padding: 10px 14px;
    font-size: 0.82rem;
  }
}

/* ===============================
无障碍支持
=============================== */
.submission-modal-content:focus {
  outline: none;
}

.submission-modal [role="dialog"]:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .submission-modal,
  .submission-modal-content,
  .submission-btn,
  .submission-email-link {
    transition: none !important;
    transform: none !important;
  }
}