/* ============================================================
   入校通行 · Material You (Material Design 3) 风格
   ============================================================ */

:root {
  /* 主色：沉静的靛蓝 */
  --md-primary: #3b58b8;
  --md-on-primary: #ffffff;
  --md-primary-container: #dbe1ff;
  --md-on-primary-container: #06164e;

  --md-secondary-container: #dfe2f9;
  --md-on-secondary-container: #161b3c;

  /* 表面色 */
  --md-surface: #fbf8ff;
  --md-surface-dim: #dbd9e0;
  --md-surface-bright: #fbf8ff;
  --md-surface-container-lowest: #ffffff;
  --md-surface-container-low: #f5f2fa;
  --md-surface-container: #efedf4;
  --md-surface-container-high: #e9e7ef;
  --md-surface-container-highest: #e3e1e9;
  --md-on-surface: #1a1b23;
  --md-on-surface-variant: #454654;

  --md-outline: #767683;
  --md-outline-variant: #c6c5d2;

  --md-error: #ba1a1a;

  --md-scrim: rgba(0, 0, 0, 0.38);

  --md-radius-s: 12px;
  --md-radius-m: 16px;
  --md-radius-l: 24px;
  --md-radius-full: 999px;

  --md-evel-1: 0 1px 2px rgba(0, 0, 0, 0.06), 0 1px 3px 1px rgba(0, 0, 0, 0.04);

  --topbar-h: 64px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

[data-theme="dark"] {
  --md-primary: #b7c4ff;
  --md-on-primary: #0c2a6f;
  --md-primary-container: #23408e;
  --md-on-primary-container: #dbe1ff;

  --md-secondary-container: #404569;
  --md-on-secondary-container: #dfe2f9;

  --md-surface: #121318;
  --md-surface-dim: #121318;
  --md-surface-bright: #38393f;
  --md-surface-container-lowest: #0d0e13;
  --md-surface-container-low: #1a1b21;
  --md-surface-container: #1e1f26;
  --md-surface-container-high: #282a32;
  --md-surface-container-highest: #33343d;
  --md-on-surface: #e3e1ea;
  --md-on-surface-variant: #c6c5d2;

  --md-outline: #90909e;
  --md-outline-variant: #454652;

  --md-error: #ffb4ab;

  --md-scrim: rgba(0, 0, 0, 0.55);
  --md-evel-1: 0 1px 2px rgba(0, 0, 0, 0.35), 0 1px 6px 2px rgba(0, 0, 0, 0.25);
}

/* 未手动设置时跟随系统 */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --md-primary: #b7c4ff;
    --md-on-primary: #0c2a6f;
    --md-primary-container: #23408e;
    --md-on-primary-container: #dbe1ff;

    --md-secondary-container: #404569;
    --md-on-secondary-container: #dfe2f9;

    --md-surface: #121318;
    --md-surface-dim: #121318;
    --md-surface-bright: #38393f;
    --md-surface-container-lowest: #0d0e13;
    --md-surface-container-low: #1a1b21;
    --md-surface-container: #1e1f26;
    --md-surface-container-high: #282a32;
    --md-surface-container-highest: #33343d;
    --md-on-surface: #e3e1ea;
    --md-on-surface-variant: #c6c5d2;

    --md-outline: #90909e;
    --md-outline-variant: #454652;

    --md-error: #ffb4ab;

    --md-scrim: rgba(0, 0, 0, 0.55);
    --md-evel-1: 0 1px 2px rgba(0, 0, 0, 0.35), 0 1px 6px 2px rgba(0, 0, 0, 0.25);
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Roboto", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
  background: var(--md-surface);
  color: var(--md-on-surface);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip; /* 兜底：任何子元素意外超宽都不产生横向滚动 */
  transition: background-color 0.25s ease, color 0.25s ease;
}

.page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ---------- 顶部应用栏 ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--md-surface) 88%, transparent);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.topbar-inner {
  max-width: 720px;
  margin: 0 auto;
  height: var(--topbar-h);
  padding: 0 max(8px, env(safe-area-inset-right)) 0 max(8px, env(safe-area-inset-left));
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-mark {
  width: 40px;
  height: 40px;
  border-radius: var(--md-radius-s);
  display: grid;
  place-items: center;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  flex-shrink: 0;
}

.topbar-title {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.2px;
  margin: 0;
  flex: 1;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--md-on-surface-variant);
  display: grid;
  place-items: center;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.15s ease;
}

@media (hover: hover) {
  .icon-btn:hover { background: color-mix(in srgb, var(--md-on-surface) 8%, transparent); }
}
.icon-btn:active { background: color-mix(in srgb, var(--md-on-surface) 14%, transparent); }

/* 触屏设备放大点击命中区到 44px（iOS HIG / Material 推荐值） */
@media (pointer: coarse) {
  .icon-btn { width: 44px; height: 44px; }
}

/* 深浅色图标按当前主题互换 */
[data-theme="dark"] .icon-light,
:root:not([data-theme]) .icon-dark { display: none; }
[data-theme="dark"] .icon-dark { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .icon-light { display: none; }
  :root:not([data-theme]) .icon-dark { display: block; }
}

/* ---------- 内容区 ---------- */

.content {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 8px max(16px, env(safe-area-inset-right)) 24px max(16px, env(safe-area-inset-left));
}

.hero {
  padding: 20px 4px 24px;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.2px;
  color: var(--md-primary);
}

.headline {
  margin: 0 0 12px;
  font-size: clamp(26px, 7.2vw, 38px);
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.25px;
}

.subtitle {
  margin: 0;
  font-size: 14.5px;
  color: var(--md-on-surface-variant);
}

/* ---------- 搜索栏 ---------- */

.searchbar {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 56px;
  min-height: 56px;
  padding: 0 8px 0 20px;
  border-radius: var(--md-radius-full);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
  transition: box-shadow 0.15s ease, background-color 0.15s ease;
}

.searchbar:focus-within {
  background: var(--md-surface-container-lowest);
  box-shadow: inset 0 0 0 2px var(--md-primary);
  color: var(--md-primary);
}

.search-icon { flex-shrink: 0; }

.searchbar input {
  flex: 1;
  min-width: 0;
  height: 100%;
  border: none;
  outline: none;
  background: transparent;
  color: var(--md-on-surface);
  font-size: 16px;
  font-family: inherit;
}

.searchbar input::placeholder { color: var(--md-on-surface-variant); }

.searchbar input::-webkit-search-cancel-button { display: none; }

.input-clear {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
}

.list-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 4px 8px;
}

.result-count {
  font-size: 13px;
  color: var(--md-on-surface-variant);
}

/* ---------- 学校卡片 ---------- */

.school-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.school-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-radius: var(--md-radius-m);
  background: var(--md-surface-container-low);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

@media (hover: hover) {
  .school-card:hover {
    background: var(--md-surface-container);
    box-shadow: var(--md-evel-1);
  }
}

.school-card:active { transform: scale(0.992); }

.school-card:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
}

.school-card.is-pinned {
  background: var(--md-surface-container);
  box-shadow: inset 0 0 0 1px var(--md-outline-variant);
}

.school-avatar {
  position: relative;
  overflow: hidden;
  width: 56px;
  height: 56px;
  border-radius: var(--md-radius-m);
  display: grid;
  place-items: center;
  font-size: 19px;
  font-weight: 600;
  flex-shrink: 0;
  letter-spacing: 0.5px;
}

.school-avatar-text {
  position: relative;
  z-index: 1;
}

.school-logo {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.school-body {
  flex: 1;
  min-width: 0;
}

.school-name {
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--md-on-surface);
  /* 允许长校名最多两行，仍超才省略 */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-word;
}

.school-meta {
  margin-top: 3px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--md-on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
}

.school-domain {
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 城市等长文本在极窄屏同样省略，不撑破卡片 */
.school-meta > span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.school-meta .dot { flex-shrink: 0; }

.school-sub {
  margin-top: 2px;
  font-size: 12.5px;
  color: var(--md-on-surface-variant);
  opacity: 0.85;
}

.school-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  align-self: stretch;
}

.pin-btn {
  color: var(--md-outline);
}

.pin-btn.is-active {
  color: var(--md-primary);
}

.go-hint {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  color: var(--md-on-surface-variant);
  flex-shrink: 0;
}

/* ---------- 空状态 ---------- */

.empty-state {
  padding: 56px 0 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--md-on-surface-variant);
}

.empty-state p { margin: 0; font-size: 14.5px; }

/* ---------- 提示说明 ---------- */

.notice {
  margin-top: 28px;
  display: flex;
  gap: 12px;
  padding: 16px;
  border-radius: var(--md-radius-m);
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.notice svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.notice p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
}

.notice strong { font-weight: 600; }

/* ---------- 页脚 ---------- */

.footer {
  padding: 8px 16px calc(20px + var(--safe-bottom));
  text-align: center;
}

.footer p {
  margin: 0;
  font-size: 12px;
  color: var(--md-on-surface-variant);
  opacity: 0.75;
}

/* ============================================================
   管理员模块
   ============================================================ */

.admin-view {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: var(--md-surface);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.admin-view[hidden] { display: none; }

.admin-content {
  padding-top: 12px;
  padding-bottom: 40px;
}

.admin-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 12px 4px 4px;
}

.admin-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-left: auto;
}

.admin-tip {
  margin: 12px 4px 4px;
  padding: 12px 14px;
  border-radius: var(--md-radius-s);
  background: var(--md-surface-container);
  color: var(--md-on-surface-variant);
  font-size: 12.5px;
  line-height: 1.6;
}

/* ---------- Material 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 40px;
  max-width: 100%;
  padding: 8px 20px;
  border: none;
  border-radius: var(--md-radius-full);
  font-family: inherit;
  font-size: 14px;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: 0.1px;
  cursor: pointer;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

@media (pointer: coarse) {
  .btn { min-height: 44px; }
}

.btn-filled {
  background: var(--md-primary);
  color: var(--md-on-primary);
}

@media (hover: hover) {
  .btn-filled:hover { box-shadow: var(--md-evel-1); }
  .btn-tonal:hover { filter: brightness(0.97); }
  [data-theme="dark"] .btn-tonal:hover { filter: brightness(1.12); }
  .btn-text:hover { background: color-mix(in srgb, var(--md-primary) 10%, transparent); }
  .btn-danger-text:hover { background: color-mix(in srgb, var(--md-error) 10%, transparent); }
}
.btn-filled:active { filter: brightness(0.95); }

.btn-tonal {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.btn-text {
  background: transparent;
  color: var(--md-primary);
  padding: 8px 14px;
}

.btn-danger-text { color: var(--md-error); }

/* ---------- 管理列表 ---------- */

.admin-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 12px;
}

.admin-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 8px 10px 16px;
  border-radius: var(--md-radius-m);
  background: var(--md-surface-container-low);
}

.admin-row-main {
  flex: 1;
  min-width: 0;
}

.admin-row-name {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 15.5px;
  font-weight: 600;
}

.admin-row-sub {
  margin-top: 2px;
  font-size: 12.5px;
  color: var(--md-on-surface-variant);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-row-actions {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}

.tag {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
  padding: 4px 7px;
  border-radius: var(--md-radius-s);
  background: var(--md-surface-container-highest);
  color: var(--md-on-surface-variant);
}

.tag-custom {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

/* ---------- 弹窗 ---------- */

.scrim {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: var(--md-scrim);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}

.scrim[hidden] { display: none; }

.dialog {
  width: 100%;
  max-width: 480px;
  max-height: 92vh;
  max-height: 92dvh;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--md-surface-container-high);
  border-radius: var(--md-radius-l) var(--md-radius-l) 0 0;
  padding: 24px 24px calc(20px + var(--safe-bottom));
  animation: dialog-up 0.22s ease;
}

.dialog-sm { max-width: 400px; }

@keyframes dialog-up {
  from { transform: translateY(24px); opacity: 0.6; }
  to { transform: translateY(0); opacity: 1; }
}

.dialog-title {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 600;
}

.dialog-sub {
  margin: 0 0 16px;
  font-size: 13.5px;
  color: var(--md-on-surface-variant);
}

.editor-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 16px;
}

#loginForm > .field,
#passwordForm > .field { margin-top: 14px; }

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 0;
}

.field-row {
  display: flex;
  gap: 12px;
}

.field-narrow { max-width: 120px; }

.field-label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  letter-spacing: 0.2px;
}

.field input {
  min-height: 48px;
  padding: 10px 16px;
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-s);
  background: var(--md-surface-container-lowest);
  color: var(--md-on-surface);
  /* 不小于 16px：避免 iOS Safari 聚焦输入框时自动放大页面 */
  font-size: 16px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus {
  border-color: var(--md-primary);
  box-shadow: inset 0 0 0 1.5px var(--md-primary);
}

.field input:disabled {
  opacity: 0.6;
  background: var(--md-surface-container);
}

.field-error {
  margin: 0;
  font-size: 13px;
  color: var(--md-error);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 4px;
  margin-top: 20px;
}

/* ============================================================
   响应式适配（移动优先）
   - ≤360px            超小屏手机（iPhone SE 1 代 / 320px）
   - ≤480px            手机竖屏：管理工具栏整行排列
   - ≥600px            大屏手机横屏 / 小平板：弹窗居中
   - ≥900px            平板竖屏及桌面：容器放宽
   - 横屏且高度 ≤520px 横屏手机：压缩头部，内容优先
   ============================================================ */

/* ---------- 超小屏手机 ---------- */
@media (max-width: 360px) {
  .content {
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
  }
  .hero { padding: 14px 0 18px; }
  .topbar-title { font-size: 18px; }
  .school-avatar { width: 48px; height: 48px; font-size: 17px; }
  .school-card { gap: 12px; padding: 14px; }
  .admin-row { padding-left: 12px; }
  .dialog {
    padding-left: 18px;
    padding-right: 18px;
    padding-top: 18px;
  }
  .field-narrow { max-width: 104px; }
}

/* ---------- 手机竖屏：管理工具栏按钮等宽换行 ---------- */
@media (max-width: 480px) {
  .admin-toolbar { flex-direction: column; align-items: stretch; gap: 12px; }
  .admin-tools { margin-left: 0; width: 100%; }
  .admin-tools .btn { flex: 1 1 auto; }
  /* 整卡可点，装饰性跳转箭头在窄屏让位给校名 */
  .go-hint { display: none; }
  .school-card { gap: 14px; }
}

/* ---------- 大屏手机横屏 / 小平板 ---------- */
@media (min-width: 600px) {
  .content { padding-top: 16px; }
  .hero { padding: 28px 4px; }
  .scrim {
    align-items: center;
    padding: 16px max(16px, env(safe-area-inset-right)) 16px max(16px, env(safe-area-inset-left));
  }
  .dialog {
    border-radius: var(--md-radius-l);
    padding-bottom: 20px;
  }
}

/* ---------- 平板 / 桌面 ---------- */
@media (min-width: 900px) {
  .topbar-inner,
  .content { max-width: 860px; }
  .school-list { gap: 14px; }
  .school-card { padding: 18px 20px; }
  .admin-list { gap: 10px; }
}

/* ---------- 横屏矮屏手机 ---------- */
@media (orientation: landscape) and (max-height: 520px) {
  .hero { padding: 6px 4px 12px; }
  .eyebrow { margin-bottom: 4px; }
  .headline { margin-bottom: 8px; font-size: 26px; }
  .subtitle { font-size: 13.5px; }
  .notice { margin-top: 16px; padding: 12px 14px; }
  .dialog { padding-top: 16px; }
  .admin-content { padding-top: 4px; }
}

/* ---------- 尊重系统"减少动态效果"设置 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}