/* ========== 海报工具 - 移动端与 PWA 优化 ========== */
/* 以手机端为主 · 安全区域 · 触摸友好 */

/* iOS Safari：html/body 高度与安全区 */
@media (max-width: 768px) {
  html {
    height: 100%;
    -webkit-text-size-adjust: 100%;
  }

  body {
    font-size: 15px;
    line-height: 1.5;
    min-height: 100%;
    min-height: 100dvh;
    min-height: -webkit-fill-available;
    padding-bottom: 0;
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }

  /* 仅对导航/按钮禁用长按菜单，保留正文可选 */
  .bottom-nav-item,
  .btn,
  .nav-link {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
  }
}

/* ========== 一级页面：底部导航与版式（移动端） ========== */
@media (max-width: 768px) {
  .app-page {
    min-height: 100%;
    min-height: 100dvh;
    min-height: -webkit-fill-available;
  }

  .app-page .app-main {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
  }

  .app-page .app-content {
    flex: 1;
    padding-bottom: max(80px, calc(80px + env(safe-area-inset-bottom)));
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
    -webkit-overflow-scrolling: touch;
    overflow-x: hidden;
  }

  /* 底部导航固定到底部，避免 iOS Safari 滚动时错位 */
  .bottom-nav {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-around;
    align-items: stretch;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 6px 8px 10px;
    padding-left: max(8px, env(safe-area-inset-left));
    padding-right: max(8px, env(safe-area-inset-right));
    padding-bottom: max(10px, env(safe-area-inset-bottom));
  }

  .bottom-nav-item {
    flex: 1;
    min-width: 0;
    min-height: 52px;
    font-size: 0.625rem;
  }

  .bottom-nav-item.admin-only {
    display: none;
  }

  body.admin .bottom-nav-item.admin-only {
    display: flex !important;
  }

  .bottom-nav-icon {
    width: 26px;
    height: 26px;
  }

  .page-hero {
    padding: 16px 16px 12px;
  }

  .page-title {
    font-size: 1.375rem;
  }

  .page-desc {
    font-size: 18px;
  }

  .card-grid,
  .template-grid {
    gap: 10px;
    min-width: 0;
  }

  .poster-card,
  .template-card {
    min-width: 0;
  }

  .template-thumbnail,
  .poster-thumbnail {
    max-height: 200px;
  }

  .card-section,
  .material-upload,
  .user-add {
    padding: 16px;
    margin-bottom: 16px;
    border-radius: var(--radius-md);
  }
}

/* 导航栏与顶栏 - 移动端安全区 */
@media (max-width: 768px) {
  .navbar {
    padding: 10px 12px;
    min-height: 56px;
    padding-top: max(10px, env(safe-area-inset-top));
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    box-shadow: 0 1px 0 var(--border-light);
  }

  .nav-brand {
    font-size: 1rem;
  }

  .nav-menu {
    gap: 4px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .nav-menu::-webkit-scrollbar {
    display: none;
  }

  .nav-link {
    font-size: 0.8125rem;
    padding: 8px 12px;
    white-space: nowrap;
    min-height: 40px;
    display: inline-flex;
    align-items: center;
  }

  .nav-menu .btn-small {
    padding: 8px 12px;
    font-size: 0.75rem;
    min-height: 40px;
  }

  .user-info {
    font-size: 0.75rem;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

/* 容器与页面头 */
@media (max-width: 768px) {
  .container {
    padding: 16px 12px;
    padding-bottom: max(16px, calc(16px + env(safe-area-inset-bottom)));
  }

  .page-header {
    margin-bottom: 20px;
  }

  .page-header h1 {
    font-size: 1.375rem;
    margin-bottom: 4px;
  }

  .page-header p {
    font-size: 0.875rem;
  }
}

/* 按钮 - 触摸目标 */
@media (max-width: 768px) {
  .btn {
    min-height: 44px;
    padding: 12px 18px;
    font-size: 0.9375rem;
  }

  .btn-small {
    min-height: 40px;
    padding: 8px 14px;
    font-size: 0.8125rem;
  }

  .btn-block {
    min-height: 48px;
    padding: 14px;
  }
}

/* 表单 - 防缩放与触摸 */
@media (max-width: 768px) {
  .form-group {
    margin-bottom: 16px;
  }

  .form-group input[type="text"],
  .form-group input[type="password"],
  .form-group input[type="number"],
  .form-group select,
  .form-group textarea {
    font-size: 16px; /* 防止 iOS 缩放 */
    min-height: 48px;
    padding: 12px 14px;
  }

  .form-row {
    flex-direction: column;
    align-items: stretch;
  }

  .form-row .form-group {
    min-width: 0;
  }
}

/* 登录页 - 移动端 */
@media (max-width: 768px) {
  .login-page {
    padding: 16px;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
    min-height: 100dvh;
    min-height: -webkit-fill-available;
    align-items: center;
  }

  .login-container {
    width: 100%;
    max-width: 100%;
    padding: 0;
  }

  .login-card {
    padding: 28px 20px;
    border-radius: var(--radius-lg);
  }

  .login-header h1 {
    font-size: 1.5rem;
  }

  .login-header p {
    font-size: 0.875rem;
  }

  .login-form .form-group input {
    min-height: 48px;
    padding: 14px 16px;
  }

  .login-form .btn-block {
    min-height: 50px;
    margin-top: 8px;
  }

  .login-tips {
    margin-top: 20px;
    font-size: 0.8125rem;
  }
}

/* 模板/海报网格 - 移动端 */
@media (max-width: 768px) {
  .template-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .template-card,
  .poster-card {
    border-radius: var(--radius-md);
  }

  .template-thumbnail,
  .poster-thumbnail {
    height: 200px;
    font-size: 2rem;
  }

  .template-info,
  .poster-info {
    padding: 12px;
  }

  .template-name,
  .poster-name {
    font-size: 0.9375rem;
    margin-bottom: 4px;
  }

  .template-size,
  .poster-meta {
    font-size: 0.75rem;
  }

  .poster-actions {
    gap: 6px;
    margin-top: 10px;
  }

  .poster-actions .btn-small {
    flex: 1;
    min-width: 0;
  }

  .add-template-card {
    min-height: 200px;
    border-width: 2px;
  }

  .add-template-content h3 {
    font-size: 1rem;
  }
}

/* 素材管理 - 移动端 */
@media (max-width: 768px) {
  .material-upload,
  .user-add {
    padding: 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
  }

  .material-upload h3,
  .user-add h3 {
    font-size: 0.9375rem;
    margin-bottom: 14px;
  }

  .material-tabs {
    gap: 6px;
    margin-bottom: 16px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .material-tabs::-webkit-scrollbar {
    display: none;
  }

  .tab-btn {
    padding: 10px 16px;
    font-size: 0.8125rem;
    white-space: nowrap;
    min-height: 44px;
  }

  .material-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .material-card {
    border-radius: var(--radius-md);
  }

  .material-preview {
    height: 120px;
  }

  .material-info {
    padding: 10px;
  }

  .material-name {
    font-size: 0.8125rem;
  }

  .material-actions .btn-small {
    font-size: 0.75rem;
    padding: 6px 10px;
  }
}

/* 用户管理 - 移动端 */
@media (max-width: 768px) {
  .user-table {
    border-radius: var(--radius-md);
  }

  .user-row {
    padding: 14px 16px;
    flex-direction: row;
    justify-content: flex-start;
    align-items: center;
    gap: 12px;
  }

  .user-info-cell {
    width: 100%;
  }

  .user-avatar {
    width: 40px;
    height: 40px;
    font-size: 0.9375rem;
  }

  .user-role {
    font-size: 9px;
    padding: 4px 10px;
  }

  .user-actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 8px;
    width: 100%;
  }

  .user-actions .btn:not(.btn-delete-icon) {
    flex: 1;
    min-width: 0;
  }

  .user-actions .btn-reset-password {
    flex: 0 0 auto;
    min-width: 0;
  }
}

/* 模态框 - 移动端 */
@media (max-width: 768px) {
  .modal {
    padding: 16px;
    align-items: flex-end;
  }

  .modal-content {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 24px 20px;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding-bottom: max(24px, calc(24px + env(safe-area-inset-bottom)));
  }

  .modal-content h3 {
    font-size: 1.125rem;
    margin-bottom: 18px;
  }

  .modal-actions {
    flex-direction: column-reverse;
    gap: 10px;
  }

  .modal-actions .btn {
    width: 100%;
    min-height: 48px;
  }
}

/* 空状态 */
@media (max-width: 768px) {
  .empty-state {
    padding: 48px 20px;
  }

  .empty-state h3 {
    font-size: 1.125rem;
  }

  .empty-state p {
    font-size: 0.875rem;
  }
}

/* 小屏手机 (≤375px) */
@media (max-width: 375px) {
  .navbar {
    padding: 8px 10px;
  }

  .nav-brand {
    font-size: 0.9375rem;
  }

  .template-grid {
    gap: 10px;
  }

  .template-thumbnail,
  .poster-thumbnail {
    height: 180px;
  }

  .material-grid {
    gap: 10px;
  }

  .material-preview {
    height: 100px;
  }
}

/* 超小屏 (≤320px) */
@media (max-width: 320px) {
  .template-grid {
    gap: 8px;
  }

  .template-thumbnail,
  .poster-thumbnail {
    height: 160px;
  }

  .modal-content {
    padding: 20px 16px;
  }
}

/* PWA 独立窗口时的安全区域 */
@supports (padding: env(safe-area-inset-bottom)) {
  @media (max-width: 768px) {
    .navbar {
      padding-top: max(12px, env(safe-area-inset-top));
    }

    .container {
      padding-bottom: max(20px, calc(20px + env(safe-area-inset-bottom)));
    }
  }
}