:root{
  --ink:#1a1d29; --sub:#6b7080; --line:#e6e8f0; --line2:#eef0f6;
  --bg:#f4f5f9; --card:#fff; --brand:#2f3aa3; --brand-d:#222a82; --brand-soft:#eef0fb;
  --ok:#0e9f8e; --ok-soft:#e3f5f2; --warn:#b7791f; --warn-soft:#fbf3e2; --danger:#c0392b;
  --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"PingFang TC","Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--brand)}
.hidden{display:none !important}

/* ---- 登入 ---- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2f3aa3,#1a1f5c);padding:24px}
.login-card{width:100%;max-width:400px;background:#fff;border-radius:18px;padding:40px 36px;box-shadow:0 24px 60px rgba(10,15,50,.3)}
.login-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--brand);font-size:17px;margin-bottom:4px}
.login-brand svg{width:28px;height:28px}
.login-card h1{font-size:20px;margin:14px 0 4px}
.login-card p.muted{color:var(--sub);font-size:13px;margin:0 0 22px}

/* ---- 共用元件 ---- */
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#333}
.field .hint{font-weight:400;color:var(--sub);font-size:12px;margin-left:6px}
input[type=text],input[type=email],input[type=password],input[type=date],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px;font-family:inherit;color:var(--ink);background:#fff;outline:none;transition:border .15s}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
textarea{resize:vertical;min-height:80px;line-height:1.7}
.btn{display:inline-flex;align-items:center;gap:7px;border:none;cursor:pointer;font-size:14px;font-weight:600;padding:10px 18px;border-radius:9px;background:var(--brand);color:#fff;transition:background .15s}
.btn:hover{background:var(--brand-d)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.block{width:100%;justify-content:center}
.btn.ghost{background:#fff;color:var(--brand);border:1px solid #d3d7e6}
.btn.ghost:hover{background:var(--brand-soft)}
.btn.sm{padding:6px 12px;font-size:12.5px}
.btn.subtle{background:var(--line2);color:#444}
.btn.subtle:hover{background:#e2e5ef}
.btn.danger{background:#fff;color:var(--danger);border:1px solid #eccfca}
.btn.danger:hover{background:#fbeeec}
.btn svg{width:15px;height:15px}
.err{color:var(--danger);font-size:13px;margin-top:10px;min-height:18px}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#1a1d29;color:#fff;padding:12px 20px;border-radius:10px;font-size:13.5px;box-shadow:0 10px 30px rgba(0,0,0,.25);z-index:9999;opacity:0;transition:opacity .2s,transform .2s}
.toast.show{opacity:1;transform:translateX(-50%) translateY(-4px)}

/* ---- App shell ---- */
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:60px;position:sticky;top:0;z-index:50}
.topbar .brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--brand)}
.topbar .brand svg{width:24px;height:24px}
.nav{display:flex;gap:4px}
.nav button{border:none;background:none;cursor:pointer;font-size:14px;font-weight:600;color:var(--sub);padding:8px 14px;border-radius:8px}
.nav button.active{background:var(--brand-soft);color:var(--brand)}
.nav button:hover:not(.active){background:var(--bg)}
.user{display:flex;align-items:center;gap:12px;font-size:13px}
.user .who{text-align:right}
.user .who .nm{font-weight:600}
.user .who .rl{color:var(--sub);font-size:11.5px}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:700}
.badge.admin{background:var(--brand-soft);color:var(--brand)}
.badge.teacher{background:var(--ok-soft);color:var(--ok)}
.badge.completed{background:var(--ok-soft);color:var(--ok)}
.badge.draft{background:var(--warn-soft);color:var(--warn)}
.badge.disabled{background:#fbeeec;color:var(--danger)}

.page{max-width:1080px;margin:0 auto;padding:28px 24px 80px}
.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:12px}
.page-head h2{margin:0;font-size:21px}
.page-head .sub{color:var(--sub);font-size:13px;margin-top:2px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.toolbar input,.toolbar select{width:auto;padding:8px 11px}

/* ---- 篩選列（整理後） ---- */
.filters{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}
.filters .search{width:100%;max-width:380px;padding:10px 14px}
.frow{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.frow select{width:auto;min-width:120px;padding:9px 12px;height:40px;background:#fff}
.daterange{display:inline-flex;align-items:center;gap:4px;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--sub);font-size:13px;white-space:nowrap;flex:0 0 auto}
.daterange .drlabel{font-size:12.5px;color:var(--sub);margin-right:4px;white-space:nowrap}
.daterange input{border:none;outline:none;padding:2px;width:auto;background:transparent;font-size:13px;color:var(--ink)}
.daterange input:focus{box-shadow:none}
.frow .grow{margin-left:auto}

/* ---- FAB 浮動新增鈕 ---- */
.fab{position:fixed;right:30px;bottom:30px;display:inline-flex;align-items:center;gap:9px;height:56px;padding:0 22px 0 18px;border-radius:30px;background:var(--brand);color:#fff;border:none;cursor:pointer;font-size:15px;font-weight:600;box-shadow:0 10px 28px rgba(47,58,163,.42);z-index:120;transition:transform .15s,background .15s,box-shadow .15s}
.fab:hover{background:var(--brand-d);transform:translateY(-2px);box-shadow:0 14px 34px rgba(47,58,163,.5)}
.fab svg{width:24px;height:24px;flex:0 0 24px}
.fab.hidden{display:none !important}
@media (max-width:640px){.fab{right:18px;bottom:18px;padding:0;width:56px;justify-content:center}.fab .fab-txt{display:none}}
.pager{display:flex;align-items:center;gap:10px;justify-content:flex-end;margin-top:18px;flex-wrap:wrap}
.pager .pinfo{margin-right:auto;color:var(--sub);font-size:13px}

/* ---- 儀表板 ---- */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.kpi .kn{font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.1}
.kpi .kl{font-size:13px;color:var(--sub);margin-top:6px}
.kpi.accent{background:var(--brand-soft);border-color:#cfd4f0}
.kpi.accent .kn{color:var(--brand)}
.kpi.warn{background:var(--warn-soft);border-color:#eedec2}
.kpi.warn .kn{color:var(--warn)}
.dash-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 22px}
.panel h3{margin:0 0 16px;font-size:15px}
.bar-row{display:grid;grid-template-columns:64px 1fr 44px;align-items:center;gap:10px;margin-bottom:10px}
.bar-row .bl{font-size:13px;color:#3a3f50}
.bar-track{height:10px;background:var(--line2);border-radius:999px;overflow:hidden}
.bar-fill{height:100%;background:var(--brand);border-radius:999px}
.bar-row .bv{font-size:13px;color:var(--sub);text-align:right}
.trow{display:flex;align-items:center;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--line2);font-size:13.5px}
.trow:last-child{border-bottom:none}
.trow .tn{font-weight:600}
.trow .tv{color:var(--sub)}
@media (max-width:860px){.kpis{grid-template-columns:repeat(2,1fr)}.dash-grid{grid-template-columns:1fr}}

/* ---- 卡片 / 列表 ---- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
.list{display:flex;flex-direction:column;gap:10px}
.row{display:flex;align-items:center;gap:14px;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:11px}
.row:hover{border-color:#cfd4e6;box-shadow:0 3px 12px rgba(20,24,55,.05)}
.row .main{flex:1;min-width:0}
.row .nm{font-weight:700;font-size:15px}
.row .meta{color:var(--sub);font-size:12.5px;margin-top:2px;display:flex;gap:14px;flex-wrap:wrap}
.row .meta span{min-width:0;overflow-wrap:anywhere;word-break:break-word}
.row .acts{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end;flex-shrink:0}
.lvchip{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:26px;border-radius:7px;background:var(--brand-soft);color:var(--brand);font-weight:800;font-size:12.5px;padding:0 8px}
.empty{text-align:center;color:var(--sub);padding:60px 20px}
.empty svg{width:46px;height:46px;opacity:.3;margin-bottom:10px}

/* 學生諮詢時間軸 */
details.stu{background:#fff;border:1px solid var(--line);border-radius:11px;overflow:hidden}
details.stu:hover{border-color:#cfd4e6}
details.stu[open]{box-shadow:0 3px 14px rgba(20,24,55,.06)}
details.stu>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:14px 18px}
details.stu>summary::-webkit-details-marker{display:none}
details.stu>summary .main{flex:1;min-width:0}
details.stu>summary .nm{font-weight:700;font-size:15px}
details.stu>summary .meta{color:var(--sub);font-size:12.5px;margin-top:2px;display:flex;gap:14px;flex-wrap:wrap}
details.stu>summary .chev{margin-left:auto;flex-shrink:0;width:18px;height:18px;color:var(--sub);transition:transform .2s}
details.stu[open]>summary .chev{transform:rotate(180deg)}
.tlwrap{padding:4px 18px 16px;border-top:1px dashed var(--line)}
.tl{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.tl-step{display:flex;align-items:center;gap:12px;padding:10px 13px;background:var(--bg);border:1px solid var(--line);border-radius:9px}
.tl-step.muted{opacity:.7}
.tl-ic{width:28px;height:28px;border-radius:8px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:12px;font-family:'Syne',sans-serif}
.tl-bd{flex:1;min-width:0}
.tl-bd .t{font-weight:700;font-size:13.5px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.tl-bd .s{color:var(--sub);font-size:12px;margin-top:2px}
.tl-act{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.tl-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}

/* 業師：待 AI體質健檢清單 */
.pending-card{background:linear-gradient(135deg,var(--brand-soft),#fff);border:1px solid #cdd3f0;border-radius:12px;padding:14px 16px;margin-bottom:18px}
.pending-h{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.pending-h b{font-size:15px}
.pending-h .pending-n{background:var(--brand);color:#fff;border-radius:100px;padding:1px 9px;font-size:12px;font-weight:700}
.pending-h .muted{font-size:12.5px}
.pending-list{display:flex;flex-direction:column;gap:8px}
.pending-item{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff;border:1px solid var(--line);border-radius:9px;padding:9px 13px}
.pending-item b{font-size:14px}

/* 派發 / 角色 下拉（列表內） */
.assign-sel{height:34px;padding:6px 9px;font-size:12.5px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);max-width:150px;cursor:pointer}
.assign-sel:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}

/* 提問與討論 一問一答 */
.qa-item{position:relative;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 36px 12px 14px;margin-bottom:10px}
.qa-row{display:flex;gap:10px;align-items:flex-start}
.qa-row+.qa-row{margin-top:8px}
.qa-tag{flex-shrink:0;width:24px;height:24px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-family:'Syne',sans-serif;font-weight:700;font-size:12px;margin-top:7px}
.qa-tag.q{background:var(--brand-soft);color:var(--brand)}
.qa-tag.a{background:#e7f7f1;color:#0e9f8e}
.qa-item textarea{min-height:46px;line-height:1.6}
.qa-del{position:absolute;top:8px;right:8px;width:24px;height:24px;border:none;border-radius:6px;background:transparent;color:var(--sub);cursor:pointer;font-size:17px;line-height:1}
.qa-del:hover{background:#fbeeec;color:var(--danger)}

/* ---- 表單頁（諮詢） ---- */
.form-stage{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 24px;margin-bottom:16px}
.stage-h{display:flex;align-items:center;gap:11px;margin-bottom:4px}
.stage-h .si{width:30px;height:30px;flex:0 0 30px;border-radius:9px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}
.stage-h h3{margin:0;font-size:16px}
.stage-h .tip{color:var(--sub);font-size:12px}
.stage-guide{background:var(--brand-soft);border-radius:9px;padding:9px 13px;font-size:12.5px;color:#37406e;margin:10px 0 16px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.toolchips{display:flex;flex-wrap:wrap;gap:8px}
.toolchip{cursor:pointer;user-select:none;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;background:#fff;color:#444}
.toolchip.on{background:var(--brand);color:#fff;border-color:var(--brand)}

/* L0-L5 選擇 */
.lvgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.lvopt{cursor:pointer;border:1.5px solid var(--line);border-radius:11px;padding:12px 14px;transition:.12s;background:#fff}
.lvopt:hover{border-color:#b9c0e0}
.lvopt.on{border-color:var(--brand);background:var(--brand-soft);box-shadow:0 0 0 3px var(--brand-soft)}
.lvopt .lc{font-weight:800;color:var(--brand);font-size:15px}
.lvopt .ln{font-weight:700;font-size:13.5px;margin-top:1px}
.lvopt .ld{color:var(--sub);font-size:11.5px;margin-top:4px;line-height:1.5}
.lvref{font-size:13px;color:var(--sub);margin-bottom:10px}.lvref b{color:var(--brand);font-weight:700}
.lvinfo{margin-top:14px;border:1px dashed #c7cde6;border-radius:11px;padding:14px 16px;background:#fafbff;font-size:13px}
.lvinfo .li{margin-bottom:7px}
.lvinfo .li:last-child{margin-bottom:0}
.lvinfo b{color:var(--brand)}

.sticky-actions{position:sticky;bottom:0;background:rgba(244,245,249,.92);backdrop-filter:blur(6px);border-top:1px solid var(--line);padding:14px 0;display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(18,22,45,.5);display:flex;align-items:center;justify-content:center;z-index:200;padding:20px}
.modal{background:#fff;border-radius:16px;width:100%;max-width:440px;padding:26px 26px 22px;box-shadow:0 30px 70px rgba(0,0,0,.3)}
.modal h3{margin:0 0 4px;font-size:18px}
.modal p.muted{color:var(--sub);font-size:13px;margin:0 0 18px}
.modal-foot{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}

@media (max-width:720px){
  .grid2,.lvgrid{grid-template-columns:1fr}
  .nav button{padding:8px 10px;font-size:13px}
  .page{padding:18px 14px 70px}
}