/* 英途教育 · 学生管理系统 — 样式表 */
:root{
  --bg:#F5F3EE; --paper:#FFFFFF; --ink:#1F2429; --ink2:#59636E; --muted:#8A93A0;
  --line:#E7E2D8; --line2:#EFEBE3;
  --brand:#0E6B5C; --brand-2:#0A5147; --brand-soft:#E4F1ED; --brand-ink:#0B5A4D;
  --ok:#2E8B57; --ok-soft:#E3F3E9;
  --warn:#B97F16; --warn-soft:#FAF0D9;
  --bad:#C0504A; --bad-soft:#F8E7E5;
  --info:#3E6DB5; --info-soft:#E8EFFA;
  --grey:#98A1AC; --grey-soft:#F0F0ED;
  --r:16px; --r-sm:10px;
  --shadow:0 1px 2px rgba(28,32,36,.05), 0 10px 30px -18px rgba(28,32,36,.25);
  --shadow-lg:0 2px 6px rgba(28,32,36,.06), 0 24px 60px -24px rgba(28,32,36,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  color:var(--ink); background:var(--bg);
  background-image:radial-gradient(1100px 380px at 50% -160px,#FFFFFF 0%,rgba(255,255,255,0) 60%);
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  font-size:15px; line-height:1.55; padding-bottom:84px;
}
a{color:var(--brand-ink)}
button{font:inherit}
.num{font-variant-numeric:tabular-nums}

/* ---------------- topbar ---------------- */
#topbar{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;gap:14px;
  padding:12px 22px; border-bottom:1px solid var(--line);
  background:rgba(245,243,238,.86); backdrop-filter:saturate(140%) blur(10px); -webkit-backdrop-filter:saturate(140%) blur(10px);
}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-tile{
  width:38px;height:38px;border-radius:11px;background:linear-gradient(150deg,var(--brand) 0%,var(--brand-2) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:19px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25), 0 6px 16px -8px rgba(14,107,92,.8);
}
.brand-name{font-weight:750;letter-spacing:.02em;font-size:16.5px;line-height:1.15}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.top-actions{margin-left:auto;display:flex;gap:8px;align-items:center}

/* ---------------- tabs ---------------- */
#tabs{display:flex;gap:4px;padding:10px 22px 0;max-width:1200px;margin:0 auto}
.tab{
  appearance:none;border:0;background:transparent;color:var(--ink2);font-weight:600;
  padding:9px 16px;border-radius:999px;cursor:pointer;position:relative;font-size:14.5px;
}
.tab:hover{background:var(--grey-soft)}
.tab.active{background:var(--ink);color:#fff}
@media (max-width:760px){
  #tabs{
    position:fixed;left:0;right:0;bottom:0;z-index:40;margin:0;padding:6px 10px calc(6px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-top:1px solid var(--line);
    display:flex;justify-content:space-around;gap:0;
  }
  .tab{flex:1;text-align:center;padding:8px 4px;border-radius:12px;font-size:13px}
}
main{max-width:1200px;margin:0 auto;padding:14px 22px 40px}
@media (max-width:760px){ main{padding:10px 12px 30px} #topbar{padding:10px 12px} }

/* ---------------- cards / layout ---------------- */
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.grid{display:grid;gap:14px}
.cols{grid-template-columns:repeat(auto-fill,minmax(330px,1fr))}
.section-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.1em;text-transform:uppercase;margin:26px 4px 10px}
.section-title:first-child{margin-top:6px}

/* summary strip */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}
.stat{padding:16px 18px}
.stat .k{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.04em}
.stat .v{font-size:30px;font-weight:800;letter-spacing:-.02em;margin-top:2px}
.stat .s{font-size:12.5px;color:var(--ink2);margin-top:2px}
.stat .v small{font-size:15px;color:var(--muted);font-weight:600}
.bar{height:8px;border-radius:999px;background:#ECE9E2;overflow:hidden}
.bar>i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand) 0%,#3D9A85 100%);transition:width .4s ease}
.bar.amber>i{background:linear-gradient(90deg,#C98A1B,#E0AC4D)}
.bar.grey>i{background:#C7CBD1}

/* ---------------- student cards ---------------- */
.scard{padding:15px 16px 12px;cursor:default;transition:transform .15s ease, box-shadow .15s ease}
.scard:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.scard .hd{display:flex;align-items:baseline;gap:8px}
.scard .nm{font-weight:750;font-size:17px;letter-spacing:.01em}
.scard .mx{margin-left:auto;font-size:12.5px;color:var(--ink2);font-weight:650}
.scard .mini{margin:9px 0 12px}
.trow{display:flex;align-items:center;gap:9px;padding:7px 8px;border-radius:10px;cursor:pointer}
.trow:hover{background:#FAF9F6}
.trow .tt{font-size:13.5px;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.trow .tt .kind{color:var(--muted);font-size:11.5px;margin-left:5px}
.trow .sp{margin-left:auto;flex:0 0 auto}
.paused-tag{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:1px 8px}

/* chips */
.chip{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:650;border-radius:999px;padding:3px 10px;border:1px solid transparent;white-space:nowrap}
.chip .dot{width:7px;height:7px;border-radius:50%}
.chip.none{background:var(--grey-soft);color:#767E88;border-color:#E4E4E0}
.chip.none .dot{background:#A9B0B8}
.chip.submitted{background:var(--warn-soft);color:var(--warn);border-color:#F0E2C2}
.chip.submitted .dot{background:var(--warn)}
.chip.verified{background:var(--ok-soft);color:var(--ok);border-color:#D5E9DD}
.chip.verified .dot{background:var(--ok)}
.chip.rejected{background:var(--bad-soft);color:var(--bad);border-color:#F0D6D3}
.chip.rejected .dot{background:var(--bad)}
.chip.off{background:transparent;color:#B4BAC2;border-color:var(--line2)}
.chip.off .dot{background:#D4D7DB}

/* dots row (14天) */
.dots{display:flex;gap:4px;flex-wrap:wrap}
.dot{width:13px;height:13px;border-radius:4.5px;background:#EDEAE4}
.dot.done{background:var(--ok)}
.dot.partial{background:var(--warn)}
.dot.zero{background:#E4E0D8}
.dot.off{background:#F3F1EC}

/* buttons */
.btn{appearance:none;border:1px solid transparent;background:var(--ink);color:#fff;font-weight:650;
  border-radius:12px;padding:9px 16px;cursor:pointer;font-size:14px;transition:filter .15s ease, transform .05s ease}
.btn:hover{filter:brightness(1.08)}
.btn:active{transform:translateY(1px)}
.btn.brand{background:var(--brand)}
.btn.soft{background:var(--brand-soft);color:var(--brand-ink);border-color:#D3E6E1}
.btn.ghost{background:transparent;color:var(--ink2);border-color:var(--line)}
.btn.danger{background:var(--bad-soft);color:var(--bad);border-color:#F0D6D3}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:10px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.wide{width:100%}
@media (max-width:760px){ .btn{padding:11px 16px} .btn.sm{padding:8px 12px} }

/* inputs */
.input,select.input,textarea.input{
  width:100%;border:1px solid var(--line);border-radius:12px;background:#fff;padding:10px 13px;
  font:inherit;color:var(--ink);outline:none;transition:border .15s, box-shadow .15s}
.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,107,92,.12)}
.field{margin-bottom:12px}
.field label{display:block;font-size:12.5px;font-weight:650;color:var(--ink2);margin-bottom:5px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row>.grow{flex:1;min-width:120px}

/* date seg */
.datebar{display:flex;align-items:center;gap:10px;margin:16px 2px 14px;flex-wrap:wrap}
.seg{display:inline-flex;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.seg button{appearance:none;border:0;background:transparent;padding:8px 12px;cursor:pointer;color:var(--ink2);font-weight:700}
.seg button:hover{background:var(--grey-soft)}
.seg .lbl{padding:8px 6px;font-weight:700;min-width:128px;text-align:center}
.today-btn{font-size:12.5px}

/* ---------------- student page ---------------- */
.shead{display:flex;gap:14px;align-items:center;flex-wrap:wrap;padding:18px}
.shead .nm{font-size:24px;font-weight:800;letter-spacing:-.01em}
.shead .meta{color:var(--muted);font-size:13px}
.taskcard{padding:16px 18px}
.taskcard .hd{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.taskcard .tt{font-weight:700;font-size:15.5px}
.taskcard .facts{display:flex;gap:16px;flex-wrap:wrap;color:var(--ink2);font-size:13px;margin:10px 0 12px}
.kv{display:flex;flex-direction:column;gap:1px}
.kv .k{font-size:11px;color:var(--muted);font-weight:650;letter-spacing:.05em}
.kv .v{font-weight:700}
.list-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-bottom:1px solid var(--line2);font-size:13.5px}
.list-item:last-child{border-bottom:0}
.list-item .nm{font-weight:650}

/* ---------------- quiz ---------------- */
.quiz-veil{position:fixed;inset:0;z-index:80;background:rgba(245,243,238,.97);
  display:flex;align-items:center;justify-content:center;padding:18px}
.quiz-card{width:min(680px,96vw);max-height:92vh;display:flex;flex-direction:column;
  background:var(--paper);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow-lg);padding:22px 26px 18px}
.quiz-top{display:flex;align-items:center;gap:12px;color:var(--ink2);font-size:13px;font-weight:650}
.quiz-top .grow{flex:1}
.quiz-mid{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:26px 0 10px;text-align:center;min-height:220px}
.quiz-prompt{font-size:clamp(26px,6.4vw,40px);font-weight:800;letter-spacing:.01em;line-height:1.2}
.quiz-sub{color:var(--muted);font-size:14px;margin-top:8px}
.quiz-input{margin-top:24px;width:min(480px,100%);text-align:center;font-size:22px;padding:14px 16px;border-radius:14px}
.quiz-fb{margin-top:18px;min-height:52px}
.spk{width:96px;height:96px;border-radius:50%;border:1px solid #D3E6E1;background:var(--brand-soft);color:var(--brand-ink);
  font-size:38px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;margin:6px auto 0;
  transition:transform .12s ease, box-shadow .12s ease;box-shadow:0 6px 18px -10px rgba(14,107,92,.5)}
.spk:hover{transform:scale(1.05)}
.spk:active{transform:scale(.96)}
.spk.playing{animation:pulse .9s ease infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(14,107,92,.25)}50%{box-shadow:0 0 0 14px rgba(14,107,92,0)}}
.fb{padding:10px 16px;border-radius:12px;font-weight:650;display:inline-block}
.fb.ok{background:var(--ok-soft);color:var(--ok)}
.fb.bad{background:var(--bad-soft);color:var(--bad);font-weight:600;text-align:left;max-width:560px}
.fb small{display:block;color:var(--ink2);font-weight:500;margin-top:2px}
.quiz-bot{display:flex;align-items:center;gap:10px;padding-top:12px;border-top:1px solid var(--line2)}
.quiz-bot .stat{font-size:13px;color:var(--ink2);font-weight:650}
.quiz-nav{display:flex;gap:8px;margin-top:16px}
.quiz-nav .btn{white-space:nowrap}
.quiz-nav .btn.brand{flex:1}
.quiz-nav .btn:disabled{opacity:.35;cursor:default;pointer-events:none}
.ring{position:relative;width:148px;height:148px;margin:6px auto 4px}
.ring svg{transform:rotate(-90deg)}
.ring .val{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring .val b{font-size:34px;letter-spacing:-.02em}
.ring .val span{font-size:12px;color:var(--muted)}

/* ---------------- stats ---------------- */
.barchart{display:flex;align-items:flex-end;gap:5px;height:130px;padding:10px 4px 0}
.bcol{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:6px;min-width:0}
.bcol .b{width:70%;max-width:34px;border-radius:7px 7px 3px 3px;background:#E8E5DE;min-height:3px}
.bcol.has .b{background:linear-gradient(180deg,#3D9A85,#0E6B5C)}
.bcol .d{font-size:10px;color:var(--muted);white-space:nowrap}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{font-size:11.5px;color:var(--muted);text-align:left;font-weight:700;letter-spacing:.06em;padding:8px 10px;border-bottom:1px solid var(--line)}
.tbl td{padding:10px;border-bottom:1px solid var(--line2);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl tr.clickable{cursor:pointer}
.tbl tr.clickable:hover{background:#FAF9F6}

/* ---------------- modal / toast ---------------- */
.modal-veil{position:fixed;inset:0;z-index:70;background:rgba(30,34,38,.42);display:flex;align-items:center;justify-content:center;padding:20px}
.modal-card{width:min(560px,96vw);max-height:86vh;overflow:auto;background:var(--paper);border-radius:18px;box-shadow:var(--shadow-lg);padding:22px 24px}
.modal-card h3{margin:0 0 4px;font-size:18px;letter-spacing:.01em}
.modal-card .sub{color:var(--muted);font-size:13px;margin-bottom:14px}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:18px;flex-wrap:wrap}
@media (max-width:640px){
  .modal-veil{align-items:flex-end;padding:0}
  .modal-card{width:100%;border-radius:20px 20px 0 0;max-height:88vh;padding-bottom:calc(22px + env(safe-area-inset-bottom))}
}
#toast-root{position:fixed;left:0;right:0;bottom:96px;display:flex;flex-direction:column;align-items:center;gap:8px;z-index:90;pointer-events:none}
.toast{background:rgba(31,36,41,.92);color:#fff;padding:9px 18px;border-radius:999px;font-size:13.5px;font-weight:600;box-shadow:var(--shadow-lg);animation:tin .2s ease}
@keyframes tin{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.loading{display:flex;align-items:center;justify-content:center;gap:10px;color:var(--muted);padding:60px 0;font-size:14px}
.loading::before{content:"";width:16px;height:16px;border-radius:50%;border:2px solid var(--line);border-top-color:var(--brand);animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.empty{text-align:center;color:var(--muted);padding:38px 20px;font-size:14px}
.pill-note{font-size:12px;color:var(--muted)}
.err-list{max-height:300px;overflow:auto;border:1px solid var(--line2);border-radius:12px}
.err-row{display:flex;gap:10px;padding:8px 12px;border-bottom:1px solid var(--line2);font-size:13.5px;align-items:baseline}
.err-row:last-child{border-bottom:0}
.err-row b{font-weight:700}
.err-row .cnt{margin-left:auto;color:var(--bad);font-weight:700}
.qr-box{text-align:center;padding:8px 0}
.qr-box img{width:220px;height:220px;border:1px solid var(--line);border-radius:14px;background:#fff}
.qr-url{font-family:ui-monospace,Menlo,monospace;font-size:12.5px;color:var(--ink2);word-break:break-all;margin-top:10px}
.name-tile{width:100%;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);
  color:var(--ink);font-weight:750;font-size:17px;padding:18px 10px;cursor:pointer;transition:all .15s ease}
.name-tile:hover{border-color:#B9D6CF;background:var(--brand-soft);transform:translateY(-1px)}
.name-tile:active{transform:translateY(0)}
.photobox{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.photo-th{position:relative;width:86px;height:86px;border-radius:12px;overflow:hidden;border:1px solid var(--line);cursor:zoom-in;display:inline-block}
.photo-th img{width:100%;height:100%;object-fit:cover;display:block}
.photo-th .del{position:absolute;top:3px;right:3px;width:20px;height:20px;border-radius:50%;border:0;background:rgba(20,20,20,.55);color:#fff;font-size:12px;line-height:1;cursor:pointer;padding:0}
.photo-add{width:86px;height:86px;border:1.5px dashed #C9C4B8;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:26px;color:var(--muted);cursor:pointer;background:#FBFAF7;user-select:none}
.photo-add:hover{border-color:var(--brand);color:var(--brand-ink)}
.bigimg{width:min(86vw,900px);max-height:76vh;object-fit:contain;border-radius:12px;display:block;margin:0 auto}
.cam{font-size:11.5px;color:var(--brand-ink);font-weight:750;margin-left:6px}
.assign-list{margin-top:8px}
.assign-list summary{cursor:pointer;color:var(--brand-ink);font-weight:650;font-size:13.5px}
.alist{max-height:340px;overflow:auto;margin-top:8px;border:1px solid var(--line2);border-radius:12px}
.arow{display:flex;align-items:center;gap:8px;padding:7px 12px;border-bottom:1px solid var(--line2);font-size:14px}
.arow:last-child{border-bottom:0}
.mini-spk{border:0;background:transparent;cursor:pointer;font-size:15px;padding:2px}
.pick-grid{display:flex;flex-wrap:wrap;gap:8px}
.pick{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:6px 11px;font-size:14px;cursor:pointer;user-select:none}
.pick input{accent-color:var(--brand)}
.pick:has(input:checked){background:var(--brand-soft);border-color:#B9D6CF;font-weight:650}
.code-chip{font-family:ui-monospace,Menlo,monospace;font-size:14px;font-weight:750;letter-spacing:.08em;background:var(--brand-soft);color:var(--brand-ink);border-radius:8px;padding:3px 9px}
.wp-rows{max-height:320px;overflow:auto;border:1px solid var(--line2);border-radius:12px;margin-top:4px}
.wp-row{display:flex;align-items:center;gap:8px;padding:7px 12px;border-bottom:1px solid var(--line2);font-size:14px;cursor:pointer;margin:0}
.wp-row:last-child{border-bottom:0}
.wp-row.on{background:var(--brand-soft)}
.wp-row input{accent-color:var(--brand);flex:0 0 auto}
.wp-row b{min-width:100px}
.wp-m{flex:1;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:right;font-size:13px}
textarea.input{resize:vertical;font-family:inherit}
.offline-tag{font-size:11.5px;color:var(--bad);font-weight:650}
.hr{height:1px;background:var(--line2);margin:14px 0}
.flex{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.right{margin-left:auto}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.mt{margin-top:12px}
.mb{margin-bottom:12px}