/* ============ Design Tokens ============ */
:root {
  --brand-50:  #e8f6f3;
  --brand-100: #c8ebe4;
  --brand-500: #0e7c66;
  --brand-600: #0b6655;
  --brand-700: #085045;

  --ink-900: #1a202c;
  --ink-700: #2d3748;
  --ink-500: #4a5568;
  --ink-400: #718096;
  --ink-300: #a0aec0;
  --ink-200: #cbd5e0;
  --ink-100: #e2e8f0;
  --ink-50:  #f7fafc;

  --rise: #d53f2c;     /* 涨-红 (中国市场惯例) */
  --fall: #2f855a;     /* 跌-绿 */

  --warn: #d69e2e;
  --info: #2b6cb0;
  --purple: #7b61ff;

  --bg: #f4f6f8;
  --card: #ffffff;
  --line: #e6eaef;
  --line-2: #eef1f5;

  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --num: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;

  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s6: 24px; --s8: 32px; --s10: 40px;

  --shadow-sm: 0 1px 2px rgba(16,24,40,.05);
  --shadow-card: 0 1px 3px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.04);
  --shadow-pop: 0 8px 24px rgba(16,24,40,.12);
  --shadow-modal: 0 24px 48px rgba(16,24,40,.18);

  --r-sm: 6px; --r-md: 10px; --r-lg: 14px;
}
* { margin:0; padding:0; box-sizing:border-box; }
html, body { height: 100%; }
body { font-family: var(--font); background: var(--bg); color: var(--ink-700); font-size: 14px; line-height: 1.5; }
.hidden { display: none !important; }
a { color: inherit; text-decoration: none; cursor: pointer; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 14px; color: var(--ink-900); background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); padding: 7px 10px; outline: none; transition: border-color .15s, box-shadow .15s; }
input:focus, select:focus, textarea:focus { border-color: var(--brand-500); box-shadow: 0 0 0 3px rgba(14,124,102,.12); }
label { display:block; font-size: 12px; color: var(--ink-400); margin-bottom: 4px; }
label > input, label > select, label > textarea { width: 100%; }

/* ============ Buttons ============ */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 7px 14px; border: 1px solid transparent; border-radius: var(--r-sm); font-size: 13px; font-weight: 500; transition: all .15s; white-space: nowrap; }
.btn-primary { background: var(--brand-500); color: #fff; }
.btn-primary:hover { background: var(--brand-600); }
.btn-ghost { background: transparent; color: var(--ink-700); border-color: var(--line); }
.btn-ghost:hover { background: var(--ink-50); border-color: var(--ink-200); }
.btn-danger { background: #fff; color: var(--rise); border-color: rgba(213,63,44,.3); }
.btn-danger:hover { background: rgba(213,63,44,.08); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ============ Badges ============ */
.tag { display: inline-block; padding: 2px 8px; font-size: 12px; border-radius: 4px; background: var(--ink-50); color: var(--ink-500); border: 1px solid var(--line); }
.tag.brand { background: var(--brand-50); color: var(--brand-600); border-color: var(--brand-100); }
.tag.warn { background: #fef5e7; color: #b7791f; border-color: #faebcf; }
.tag.danger { background: #fbeaea; color: var(--rise); border-color: #f5c6cb; }
.tag.info { background: #ebf3fb; color: var(--info); border-color: #c7dbf2; }
.tag.purple { background: #f1ecfe; color: var(--purple); border-color: #ddd3fc; }
.tag.success { background: #e6f5ec; color: var(--fall); border-color: #bfe5cd; }

/* ============ Login ============ */
.login-page { min-height: 100vh; background: linear-gradient(135deg, #0e7c66 0%, #085045 100%); display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-card { width: 100%; max-width: 400px; background: #fff; border-radius: var(--r-lg); box-shadow: var(--shadow-modal); padding: 32px 28px; }
.login-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.login-logo-mark { width: 44px; height: 44px; border-radius: 12px; background: var(--brand-500); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 22px; }
.login-school { font-size: 17px; font-weight: 600; color: var(--ink-900); }
.login-sub { font-size: 12px; color: var(--ink-400); }
#loginForm label { display: block; margin-bottom: 14px; }
#loginForm input { width: 100%; margin-top: 4px; padding: 10px 12px; }
#loginForm button { margin-top: 6px; padding: 11px; }
.login-err { color: var(--rise); font-size: 12px; min-height: 18px; margin-top: 8px; }

/* ============ App Layout ============ */
.app { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: #fff; border-right: 1px solid var(--line); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.brand { padding: 20px 18px; display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--line); }
.brand-mark { width: 34px; height: 34px; border-radius: 9px; background: var(--brand-500); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 18px; }
.brand-name { font-size: 14px; font-weight: 600; color: var(--ink-900); }
.brand-sub { font-size: 11px; color: var(--ink-400); }
.nav { flex: 1; padding: 12px 8px; overflow-y: auto; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: var(--r-sm); color: var(--ink-500); font-size: 14px; margin-bottom: 2px; }
.nav-item:hover { background: var(--ink-50); color: var(--ink-900); }
.nav-item.active { background: var(--brand-50); color: var(--brand-700); font-weight: 500; }
.nav-item .ico { font-size: 16px; }
.sidebar-foot { padding: 12px; border-top: 1px solid var(--line); }
.user-card { display: flex; align-items: center; gap: 10px; padding: 6px 6px 12px; }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--brand-500); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 14px; flex-shrink: 0; }
.user-info { min-width: 0; }
.user-name { font-size: 13px; color: var(--ink-900); font-weight: 500; }
.user-role { font-size: 11px; color: var(--ink-400); }

.main { flex: 1; min-width: 0; }
.topbar { background: #fff; border-bottom: 1px solid var(--line); padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 10; }
.crumbs { font-size: 15px; font-weight: 600; color: var(--ink-900); }
.topbar-right { display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--ink-400); }
.topbar-time { font-variant-numeric: tabular-nums; }
.badge { padding: 3px 10px; font-size: 11px; background: var(--ink-50); color: var(--ink-500); border-radius: 12px; }
.view { padding: 20px 24px 40px; }

/* ============ Card / Grid ============ */
.card { background: var(--card); border-radius: var(--r-md); box-shadow: var(--shadow-card); border: 1px solid var(--line-2); }
.card-pad { padding: 18px; }
.card-head { padding: 14px 18px; border-bottom: 1px solid var(--line-2); display: flex; align-items: center; justify-content: space-between; }
.card-head h3 { font-size: 14px; font-weight: 600; color: var(--ink-900); }
.card-body { padding: 16px 18px; }

.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }
.grid-2-1 { grid-template-columns: 2fr 1fr; }
.grid-1-2 { grid-template-columns: 1fr 2fr; }
@media (max-width: 1280px) {
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .grid-6 { grid-template-columns: repeat(4, 1fr); }
  .grid-2-1, .grid-1-2 { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .grid-4, .grid-3, .grid-5, .grid-6 { grid-template-columns: repeat(2, 1fr); }
}

/* ============ KPI 卡片 ============ */
.kpi { display: flex; align-items: center; gap: 12px; padding: 16px; }
.kpi-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.kpi-icon.brand { background: var(--brand-50); color: var(--brand-500); }
.kpi-icon.warn { background: #fef5e7; color: var(--warn); }
.kpi-icon.info { background: #ebf3fb; color: var(--info); }
.kpi-icon.purple { background: #f1ecfe; color: var(--purple); }
.kpi-icon.rise { background: #fbeaea; color: var(--rise); }
.kpi-icon.fall { background: #e6f5ec; color: var(--fall); }
.kpi-text { flex: 1; min-width: 0; }
.kpi-label { font-size: 12px; color: var(--ink-400); }
.kpi-value { font-family: var(--num); font-size: 22px; font-weight: 600; color: var(--ink-900); line-height: 1.2; margin-top: 2px; }
.kpi-unit { font-size: 12px; color: var(--ink-400); margin-left: 2px; font-weight: 400; }
.kpi-trend { font-size: 12px; margin-top: 2px; }
.kpi-trend.rise { color: var(--rise); }
.kpi-trend.fall { color: var(--fall); }

/* ============ Tables ============ */
.tbl-wrap { overflow-x: auto; }
.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th { text-align: left; padding: 10px 12px; background: var(--ink-50); color: var(--ink-500); font-weight: 500; font-size: 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tbl td { padding: 10px 12px; border-bottom: 1px solid var(--line-2); color: var(--ink-700); vertical-align: middle; }
.tbl tr:hover td { background: var(--ink-50); }
.tbl .num { font-family: var(--num); }
.tbl .actions { display: flex; gap: 6px; }
.tbl-empty { text-align: center; padding: 40px; color: var(--ink-300); }

/* ============ Filter bar ============ */
.filterbar { display: flex; flex-wrap: wrap; gap: 8px; padding: 14px 18px; background: #fff; border: 1px solid var(--line-2); border-radius: var(--r-md); margin-bottom: 14px; align-items: center; }
.filterbar .grow { flex: 1; min-width: 180px; }
.filterbar input, .filterbar select { min-width: 140px; }
.filterbar .actions { margin-left: auto; display: flex; gap: 8px; }

/* ============ Pagination ============ */
.pager { display: flex; align-items: center; justify-content: space-between; padding: 12px 4px 0; font-size: 12px; color: var(--ink-400); }
.pager .pages { display: flex; gap: 4px; }
.pager .pg { padding: 4px 10px; border: 1px solid var(--line); border-radius: 4px; background: #fff; cursor: pointer; }
.pager .pg:hover { background: var(--ink-50); }
.pager .pg.active { background: var(--brand-500); color: #fff; border-color: var(--brand-500); }
.pager .pg:disabled { opacity: .4; cursor: not-allowed; }

/* ============ Modal ============ */
.modal-mask { position: fixed; inset: 0; background: rgba(16,24,40,.4); z-index: 100; display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal { background: #fff; border-radius: var(--r-lg); width: 100%; max-width: 640px; max-height: 90vh; display: flex; flex-direction: column; box-shadow: var(--shadow-modal); }
.modal-head { padding: 16px 20px; border-bottom: 1px solid var(--line-2); display: flex; align-items: center; justify-content: space-between; }
.modal-title { font-size: 15px; font-weight: 600; color: var(--ink-900); }
.modal-close { background: none; border: 0; font-size: 22px; color: var(--ink-300); cursor: pointer; padding: 0 4px; line-height: 1; }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-foot { padding: 12px 20px; border-top: 1px solid var(--line-2); display: flex; justify-content: flex-end; gap: 8px; }
.modal .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
.modal .form-grid .full { grid-column: 1 / -1; }

/* ============ Toast ============ */
.toast { position: fixed; top: 24px; left: 50%; transform: translateX(-50%); padding: 10px 18px; background: rgba(16,24,40,.85); color: #fff; border-radius: 6px; font-size: 13px; z-index: 1000; box-shadow: var(--shadow-pop); animation: toastIn .25s ease; }
.toast.ok { background: var(--brand-600); }
.toast.err { background: var(--rise); }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, -8px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ============ Section heading ============ */
.section { margin-bottom: 18px; }
.section-title { font-size: 13px; color: var(--ink-400); margin: 0 0 10px; text-transform: uppercase; letter-spacing: .04em; font-weight: 500; }

/* ============ Dashboard specific ============ */
.health-card { padding: 18px; }
.health-ring { width: 120px; height: 120px; margin: 0 auto 8px; position: relative; }
.health-ring svg { transform: rotate(-90deg); }
.health-ring .ring-bg { stroke: var(--line); }
.health-ring .ring-fg { stroke: var(--brand-500); transition: stroke-dashoffset .5s; stroke-linecap: round; }
.health-ring .label { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.health-ring .label .v { font-family: var(--num); font-size: 28px; font-weight: 600; color: var(--brand-700); }
.health-ring .label .u { font-size: 11px; color: var(--ink-400); }
.goal-card { padding: 16px 18px; }
.goal-card .g-title { font-size: 13px; color: var(--ink-400); margin-bottom: 6px; }
.goal-card .g-num { font-family: var(--num); font-size: 24px; font-weight: 600; color: var(--ink-900); }
.goal-card .g-num small { font-size: 12px; color: var(--ink-400); font-weight: 400; margin-left: 4px; }
.goal-card .g-bar { height: 6px; background: var(--ink-100); border-radius: 3px; margin: 8px 0; overflow: hidden; }
.goal-card .g-bar > div { height: 100%; background: linear-gradient(90deg, var(--brand-500), var(--brand-700)); border-radius: 3px; transition: width .5s; }
.goal-card .g-bar.warn > div { background: linear-gradient(90deg, #d69e2e, #b7791f); }
.goal-card .g-bar.danger > div { background: linear-gradient(90deg, var(--rise), #b8301e); }
.goal-card .g-foot { display: flex; justify-content: space-between; font-size: 12px; color: var(--ink-400); }
.tabs-mini { display: flex; gap: 4px; padding: 2px; background: var(--ink-50); border-radius: var(--r-sm); }
.tabs-mini button { padding: 4px 10px; font-size: 12px; border: 0; background: transparent; color: var(--ink-500); border-radius: 4px; cursor: pointer; }
.tabs-mini button.active { background: #fff; color: var(--brand-700); font-weight: 500; box-shadow: var(--shadow-sm); }

.chart-area { width: 100%; height: 240px; }
.chart-bar { display: flex; align-items: flex-end; gap: 4px; height: 100%; padding: 4px 0; }
.chart-bar .bar { flex: 1; background: var(--brand-100); border-radius: 3px 3px 0 0; min-height: 2px; position: relative; transition: all .3s; cursor: pointer; }
.chart-bar .bar:hover { background: var(--brand-500); }
.chart-bar .bar.primary { background: var(--brand-500); }
.chart-bar .bar.warn { background: #f6c868; }
.chart-bar .bar.info { background: #8eb6e0; }
.chart-bar .bar .v { position: absolute; top: -16px; left: 50%; transform: translateX(-50%); font-size: 10px; color: var(--ink-500); opacity: 0; transition: opacity .15s; }
.chart-bar .bar:hover .v { opacity: 1; }
.chart-bar .bar .lbl { position: absolute; bottom: -18px; left: 0; right: 0; text-align: center; font-size: 10px; color: var(--ink-400); }

.funnel-list { padding: 8px 0; }
.funnel-row { display: flex; align-items: center; gap: 12px; padding: 6px 0; }
.funnel-row .name { width: 60px; font-size: 12px; color: var(--ink-500); }
.funnel-row .bar { flex: 1; height: 22px; background: var(--ink-50); border-radius: 4px; overflow: hidden; position: relative; }
.funnel-row .bar > div { height: 100%; background: linear-gradient(90deg, var(--brand-500), var(--brand-700)); display: flex; align-items: center; justify-content: flex-end; padding: 0 8px; color: #fff; font-size: 12px; font-family: var(--num); }
.funnel-row .rate { width: 70px; text-align: right; font-size: 12px; color: var(--ink-400); font-family: var(--num); }

.spark { display: inline-block; vertical-align: middle; width: 60px; height: 18px; }
.legend-mini { display: flex; gap: 12px; font-size: 11px; color: var(--ink-400); }
.legend-mini .d { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 4px; vertical-align: middle; }

/* ============ Tab nav for settings ============ */
.subtabs { display: flex; gap: 4px; padding: 4px; background: var(--ink-50); border-radius: var(--r-sm); margin-bottom: 14px; width: fit-content; }
.subtabs button { padding: 6px 14px; font-size: 12px; border: 0; background: transparent; color: var(--ink-500); border-radius: 4px; cursor: pointer; }
.subtabs button.active { background: #fff; color: var(--brand-700); font-weight: 500; box-shadow: var(--shadow-sm); }

/* ============ Detail panel ============ */
.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 20px; font-size: 13px; }
.detail-grid .k { color: var(--ink-400); font-size: 12px; }
.detail-grid .v { color: var(--ink-900); }
.timeline { padding-left: 16px; border-left: 2px solid var(--line); margin-left: 6px; }
.timeline-item { padding: 6px 0 14px; position: relative; }
.timeline-item::before { content: ''; position: absolute; left: -22px; top: 8px; width: 8px; height: 8px; border-radius: 50%; background: var(--brand-500); }
.timeline-item .ti-head { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.timeline-item .ti-time { color: var(--ink-400); font-size: 12px; }
.timeline-item .ti-content { color: var(--ink-500); font-size: 13px; margin-top: 2px; }

/* loading */
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--line); border-top-color: var(--brand-500); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }