/* =============================================================
 * 三校白标 UI · 学校主题 Design Tokens（V1 · P0 独立主题层）
 * 载体：assets/school-theme.css（本文件为新增独立文件，不改任何现有 CSS）
 * 状态：三校配色/文案为设计提案（PENDING_SCHOOL_CONFIRM），非校方官方 VI。
 * 规则：
 *  1) :root 默认=中性主题（未识别学校/身份未确认首帧）；中性色不属于任何学校，
 *     也不是本地演示学校（青岚/云禾/星澜）的任何颜色。
 *  2) html[data-school-theme="<code>"] 由 school-theme.js 在可信身份确认后设置；
 *     只有校验通过的 token 才会写入，主题切换=切换 data 属性，天然幂等。
 *  3) 旧版兼容桥：--brand / --brand-soft 映射到学校语义变量，
 *     既有 7 个 CSS 文件（v4/ux-v43/ux-v5/ip-v45/ux-v51/yiwen-v44/agent-v41）零改动继承。
 * ============================================================= */

:root {
  /* —— 中性主题（默认，禁止出现任何学校品牌）—— */
  --school-primary: #5B6B66;
  --school-primary-strong: #46554F;
  --school-primary-soft: #EDF0EE;
  --school-accent: #8A7A5A;
  --school-canvas: #F4F4F1;
  --school-surface: #FFFFFF;
  --school-surface-alt: #ECEEEA;
  --school-text: #252B28;
  --school-muted: #5A6560;
  --school-border: #D9DDD8;

  /* 全校共用语义（规范 §2.2）：焦点色独立保证对比度；业务状态色全校统一 */
  --school-focus: #1858BD;
  --status-success: #1D7545;
  --status-warning: #A15B12;
  --status-danger: #B42332;

  --ui-radius-sm: 8px;
  --ui-radius-md: 12px;
  --ui-radius-lg: 18px;
  --ui-shadow: 0 8px 24px rgba(17, 35, 42, .055);

  /* —— 旧版 --brand 兼容桥（中性默认）—— */
  --brand: var(--school-primary);
  --brand-soft: var(--school-primary-soft);
}

/* —— 江口中学 · 和美艺术书院（提案色，待校方确认）—— */
html[data-school-theme="jiangkou"] {
  --school-primary: #2F665B;
  --school-primary-strong: #214D44;
  --school-primary-soft: #E7F0EA;
  --school-accent: #B38B4C;
  --school-canvas: #F7F5EE;
  --school-surface: #FFFFFF;
  --school-surface-alt: #F0EEE5;
  --school-text: #243632;
  --school-muted: #52645D;
  --school-border: #D7DED4;
}

/* —— 塘栖中学 · 江南人文美育（提案色，待校方确认）—— */
html[data-school-theme="tangqi"] {
  --school-primary: #356B83;
  --school-primary-strong: #244E63;
  --school-primary-soft: #E7F1F5;
  --school-accent: #B08D68;
  --school-canvas: #F5F9FB;
  --school-surface: #FFFFFF;
  --school-surface-alt: #EAF2F5;
  --school-text: #233945;
  --school-muted: #516976;
  --school-border: #D6E3E9;
}

/* —— 萧山五中 · 本真艺术未来（提案色，待校方确认）—— */
html[data-school-theme="xiaoshan5"] {
  --school-primary: #274F86;
  --school-primary-strong: #1A385E;
  --school-primary-soft: #E8F0FB;
  --school-accent: #C86C35;
  --school-canvas: #F5F8FC;
  --school-surface: #FFFFFF;
  --school-surface-alt: #EDF2F9;
  --school-text: #223047;
  --school-muted: #55657B;
  --school-border: #D9E3EE;
}

/* 三校主题下的旧版 --brand 兼容桥（跟随学校主色） */
html[data-school-theme] {
  --brand: var(--school-primary);
  --brand-soft: var(--school-primary-soft);
}

/* —— 可达性：焦点可见（≥2px，独立焦点色）—— */
.wl-scope :focus-visible,
:root[data-school-theme] :focus-visible {
  outline: 2px solid var(--school-focus);
  outline-offset: 2px;
}

/* =============================================================
 * 白标组件种子（.wl- 前缀；用于独立预览页与后续白标页面，
 * 不与 V6 现有类名冲突；作品查看器区域禁止叠加任何装饰）
 * ============================================================= */

.wl-scope {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--school-text);
  background: var(--school-canvas);
  margin: 0;
  line-height: 1.6;
}

/* 品牌页头（60–72px 高度带） */
.wl-header {
  display: flex; align-items: center; gap: 16px;
  min-height: 64px; padding: 0 24px;
  background: var(--school-surface);
  border-bottom: 1px solid var(--school-border);
}
.wl-header .wl-crest {
  width: 44px; height: 44px; flex: 0 0 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--school-primary); color: #fff;
  border-radius: var(--ui-radius-sm);
  font-family: Georgia, "Noto Sans SC", serif; font-size: 22px;
}
.wl-header .wl-titles { display: flex; flex-direction: column; }
.wl-header .wl-school-name { font-size: 17px; font-weight: 600; letter-spacing: 1px; }
.wl-header .wl-brand-line { font-size: 11px; color: var(--school-muted); letter-spacing: 2px; }

/* 首页 Hero（文案左侧、主视觉右侧；主视觉占位不得冒充官方校徽/校园照片） */
.wl-hero {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 32px; align-items: center;
  padding: 40px 32px; max-width: 1560px; margin: 0 auto;
}
.wl-hero .wl-hero-copy .wl-hero-title {
  font-size: 38px; line-height: 1.35; margin: 0 0 12px; font-weight: 600;
}
.wl-hero .wl-hero-copy .wl-hero-sub { font-size: 16px; color: var(--school-muted); margin: 0 0 24px; }
.wl-hero .wl-hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.wl-hero .wl-hero-visual {
  min-height: 300px; border-radius: var(--ui-radius-lg);
  background:
    linear-gradient(135deg, var(--school-primary-soft), var(--school-surface-alt)),
    var(--school-surface);
  border: 1px solid var(--school-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--school-muted); font-size: 12px; text-align: center; padding: 16px;
}
.wl-hero .wl-hero-visual::before { content: "主视觉占位 · 待校方授权素材"; }

/* 按钮（主按钮学校色+白字；最小点击高 44px） */
.wl-btn {
  min-height: 44px; padding: 10px 22px; border-radius: 10px;
  font-size: 14px; cursor: pointer; border: 1px solid transparent;
}
.wl-btn-primary { background: var(--school-primary); color: #fff; border-color: var(--school-primary); }
.wl-btn-primary:hover { background: var(--school-primary-strong); }
.wl-btn-secondary { background: var(--school-surface); color: var(--school-primary); border-color: var(--school-border); }
.wl-btn-secondary:hover { border-color: var(--school-primary); }

/* 五区导航种子（文案/路由/门禁不变，仅外观） */
.wl-zonebar { display: flex; gap: 4px; border-bottom: 1px solid var(--school-border); padding: 0 24px; }
.wl-zonebar .wl-zone {
  appearance: none; background: transparent; border: 0; cursor: pointer;
  padding: 12px 18px; font-size: 14px; color: var(--school-muted);
  border-bottom: 3px solid transparent; min-height: 44px;
}
.wl-zonebar .wl-zone.active {
  color: var(--school-primary); font-weight: 600;
  border-bottom-color: var(--school-primary); background: transparent;
}

/* 教师工作台卡片 */
.wl-worktop { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; padding: 24px 32px; max-width: 1560px; margin: 0 auto; }
.wl-card {
  background: var(--school-surface); border: 1px solid var(--school-border);
  border-radius: var(--ui-radius-md); box-shadow: var(--ui-shadow); padding: 18px;
}
.wl-card h3 { margin: 0 0 8px; font-size: 15px; }
.wl-card p { margin: 0; font-size: 12px; color: var(--school-muted); }
.wl-card .wl-num { font-size: 26px; color: var(--school-primary); font-family: Georgia, serif; }

/* 状态徽标（文字+色并用的种子） */
.wl-chip { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; border: 1px solid var(--school-border); color: var(--school-muted); background: var(--school-surface); }
.wl-chip.ok { color: var(--status-success); border-color: var(--status-success); }
.wl-chip.warn { color: var(--status-warning); border-color: var(--status-warning); }

/* 响应式（1024 单列；390 触控≥44px、无横向溢出） */
@media (max-width: 1180px) {
  .wl-hero { grid-template-columns: 1fr; padding: 24px 16px; }
  .wl-worktop { grid-template-columns: 1fr; padding: 16px; }
}
@media (max-width: 700px) {
  .wl-hero .wl-hero-copy .wl-hero-title { font-size: 28px; }
  .wl-zonebar { padding: 0 8px; overflow-x: auto; }
  .wl-zonebar .wl-zone { padding: 12px 14px; flex: 0 0 auto; }
}

@media (prefers-reduced-motion: reduce) {
  .wl-scope *, .wl-header *, .wl-hero *, .wl-btn, .wl-zone { transition: none !important; animation: none !important; }
}

/* P3: existing V6 page surfaces. Decorative layers never touch artwork pixels. */
html[data-school-theme] body { background: var(--school-canvas); color: var(--school-text); }
html[data-school-theme] .sidebar,
html[data-school-theme] .topbar,
html[data-school-theme] #multischool-root > .ms-login,
html[data-school-theme] #multischool-root > .ms-signedin {
  background: var(--school-surface);
  border-color: var(--school-border);
}
html[data-school-theme] .sidebar { border-right: 1px solid var(--school-border); }
html[data-school-theme] .crest { border-color: var(--school-primary); color: var(--school-primary); }
html[data-school-theme] .sidebar nav button.active,
html[data-school-theme] button.primary { background: var(--school-primary); color: #fff; }
html[data-school-theme] .zones button.active {
  color: var(--school-primary);
  border-bottom-color: var(--school-primary);
}
html[data-school-theme] .paper,
html[data-school-theme] .v51-tool-group,
html[data-school-theme] .v51-assistant,
html[data-school-theme] .ms-class-panel {
  border-color: var(--school-border);
}
html[data-school-theme] .v51-permission,
html[data-school-theme] .v51-flow-stage { background: var(--school-primary-soft); }
html[data-school-theme] .home-hero {
  position: relative;
  isolation: isolate;
  border-bottom-color: var(--school-border);
}
html[data-school-theme] .home-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -12px -16px 14px;
  pointer-events: none;
  border-radius: 18px;
  background: linear-gradient(115deg, var(--school-primary-soft), transparent 62%);
}
html[data-school-theme="jiangkou"] .home-hero::before {
  background:
    radial-gradient(ellipse at 83% 78%, rgba(179,139,76,.18) 0 17%, transparent 18%),
    linear-gradient(130deg, #e7f0ea, #f7f5ee 72%);
}
html[data-school-theme="tangqi"] .home-hero::before {
  background:
    repeating-linear-gradient(165deg, transparent 0 30px, rgba(53,107,131,.045) 31px 32px),
    linear-gradient(125deg, #e7f1f5, #f5f9fb 72%);
}
html[data-school-theme="xiaoshan5"] .home-hero::before {
  background:
    radial-gradient(circle at 92% 18%, rgba(200,108,53,.18) 0 9%, transparent 10%),
    linear-gradient(125deg, #e8f0fb, #f5f8fc 72%);
}
html[data-school-theme] .home-hero h1 { color: var(--school-text); }
html[data-school-theme] .home-hero figure { border-radius: 12px; }
html[data-school-theme] .home-hero figure img,
html[data-school-theme] .viewer img { filter: none; }
html[data-school-theme] #multischool-root form button {
  min-height: 44px;
  background: var(--school-primary);
  border-color: var(--school-primary);
  color: #fff;
}
/* The login DOM appends label/input pairs; assign grid cells explicitly. */
html[data-school-theme] #multischool-root .ms-login form {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  align-items: end;
}
html[data-school-theme] #multischool-root .ms-login form > :nth-child(1) { grid-column: 1; grid-row: 1; }
html[data-school-theme] #multischool-root .ms-login form > :nth-child(2) { grid-column: 1; grid-row: 2; }
html[data-school-theme] #multischool-root .ms-login form > :nth-child(3) { grid-column: 2; grid-row: 1; }
html[data-school-theme] #multischool-root .ms-login form > :nth-child(4) { grid-column: 2; grid-row: 2; }
html[data-school-theme] #multischool-root .ms-login form > :nth-child(5) { grid-column: 3; grid-row: 2; }
html[data-school-theme] #multischool-root .ms-login form > :nth-child(6) { grid-column: 1 / -1; grid-row: 3; }
html[data-school-theme] #multischool-root .ms-login form input,
html[data-school-theme] #multischool-root .ms-login form button { min-height: 44px; }
@media(max-width:700px) {
  html[data-school-theme] #multischool-root .ms-login form { grid-template-columns: minmax(0,1fr); }
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(1),
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(2),
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(3),
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(4),
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(5),
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(6) { grid-column: 1; }
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(1) { grid-row: 1; }
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(2) { grid-row: 2; }
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(3) { grid-row: 3; }
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(4) { grid-row: 4; }
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(5) { grid-row: 5; }
  html[data-school-theme] #multischool-root .ms-login form > :nth-child(6) { grid-row: 6; }
}
html[data-school-theme] #multischool-root form input:focus-visible,
html[data-school-theme] button:focus-visible,
html[data-school-theme] a:focus-visible { outline: 3px solid var(--school-focus); outline-offset: 2px; }
@media(max-width:700px) {
  html[data-school-theme] .home-hero::before { inset: -8px -8px 8px; }
  html[data-school-theme] .zones button { min-height: 44px; }
}