/* ── Design tokens ── */
:root {
  --sidebar-w: 220px;
  --topbar-h: 52px;
  --primary: #3B73D0;
  --primary-light: #EBF2FF;
  --navy: #1B2A4A;
  --gold: #C4903A;
  --gold2: #E8C07A;
  --bg: #F5F6FA;
  --card: #fff;
  --sidebar-bg: #fff;
  --warm: #F8FAFC;
  --border: #E2E8F0;
  --text: #2D3748;
  --muted: #718096;
  --danger: #C0392B;
  --ok: #1E7E5A;
  --r: 8px;
  --sh: 0 1px 6px rgba(0,0,0,.07);
}

/* ── Reset ── */
*{box-sizing:border-box;margin:0;padding:0}

/* ── Global ── */
body{
  font-family:'Noto Sans TC',sans-serif;
  font-size:15px;
  background:var(--bg);color:var(--text);
  min-height:100vh;line-height:1.7;
}
body.has-sidebar{display:flex}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--navy)}

/* ── Sidebar ── */
.sidebar{
  width:var(--sidebar-w);
  background:var(--sidebar-bg);
  border-right:1px solid var(--border);
  position:fixed;top:0;left:0;bottom:0;
  overflow-y:auto;z-index:200;
  display:flex;flex-direction:column;flex-shrink:0;
  transition:transform .22s;
}
.sidebar-logo{
  display:flex;align-items:center;gap:10px;
  padding:.9rem 1.2rem;
  border-bottom:1px solid var(--border);
  min-height:var(--topbar-h);
  text-decoration:none;flex-shrink:0;
}
.brand-mark{
  width:30px;height:30px;
  background:var(--navy);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--gold);
  font-family:'Noto Serif TC',serif;font-weight:700;
  border-radius:6px;flex-shrink:0;
}
.brand-name{font-size:.8rem;font-weight:700;color:var(--navy);font-family:'Noto Serif TC',serif;line-height:1.3}
.brand-sub{font-size:.68rem;color:var(--muted);letter-spacing:.06em}

.sidenav{flex:1;padding:.5rem 0 1.5rem}
.sidenav-section{
  font-size:.72rem;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;
  color:#CBD5E0;padding:1.1rem 1.2rem .35rem;
}
.sidenav-item{
  display:flex;align-items:center;gap:9px;
  padding:.58rem 1.2rem;
  font-size:.88rem;color:var(--muted);
  text-decoration:none;
  transition:all .12s;
  border-left:3px solid transparent;
  white-space:nowrap;
}
.sidenav-item:hover{background:#F1F5F9;color:var(--text)}
.sidenav-item.active{
  background:var(--primary-light);
  color:var(--primary);
  border-left-color:var(--primary);
  font-weight:600;
}
.sidenav-item .nav-icon{font-size:.88rem;width:18px;text-align:center;flex-shrink:0}

/* ── Layout wrapper ── */
.layout-main{
  margin-left:var(--sidebar-w);
  flex:1;min-height:100vh;
  display:flex;flex-direction:column;
  min-width:0;transition:margin-left .22s;
}

/* ── Topbar ── */
.topbar{
  height:var(--topbar-h);
  background:var(--card);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 1.5rem;
  position:sticky;top:0;z-index:100;flex-shrink:0;
}
.topbar-toggle{
  display:none;
  background:none;border:none;cursor:pointer;
  font-size:1.05rem;color:var(--muted);
  padding:.3rem .5rem;border-radius:4px;line-height:1;
  transition:background .12s;
}
.topbar-toggle:hover{background:var(--bg);color:var(--text)}
.topbar-right{display:flex;align-items:center;gap:.75rem}

/* ── User menu (topbar) ── */
.umenu{position:relative}
.umenu-trigger{
  background:none;border:1px solid var(--border);
  color:var(--text);font-family:'Noto Sans TC',sans-serif;
  font-size:.86rem;font-weight:500;
  padding:.38rem .85rem;border-radius:6px;cursor:pointer;
  display:inline-flex;align-items:center;gap:7px;
  transition:all .12s;
}
.umenu-trigger:hover{background:var(--bg);border-color:#C4CCDA}
.umenu-trigger .role{
  background:var(--primary-light);color:var(--primary);
  font-weight:700;font-size:.6rem;
  padding:1px 6px;border-radius:3px;
  letter-spacing:.06em;text-transform:uppercase;
}
.umenu-trigger .chev{font-size:.6rem;color:var(--muted);transition:transform .12s}
.umenu.open .umenu-trigger .chev{transform:rotate(180deg)}
.umenu-popover{
  position:absolute;top:calc(100% + 6px);right:0;
  min-width:175px;
  background:#fff;border:1px solid var(--border);border-radius:8px;
  box-shadow:0 8px 24px rgba(0,0,0,.12);
  padding:.4rem;z-index:300;display:none;
}
.umenu.open .umenu-popover{display:block}
.umenu-item{
  display:flex;align-items:center;gap:8px;
  padding:.55rem .7rem;border-radius:5px;
  font-size:.88rem;color:var(--text);cursor:pointer;
  background:none;border:none;width:100%;text-align:left;font-family:inherit;
  transition:background .1s;
}
.umenu-item:hover{background:var(--bg)}
.umenu-item.danger{color:var(--danger)}
.umenu-item.danger:hover{background:rgba(192,57,43,.07)}
.umenu-divider{height:1px;background:var(--border);margin:.3rem .2rem}
.umenu-user{padding:.5rem .7rem;border-radius:5px;background:var(--bg);margin-bottom:.3rem}
.umenu-user .name{font-weight:600;color:var(--navy);font-size:.85rem}
.umenu-user .meta{font-size:.7rem;color:var(--muted);margin-top:1px}

/* sidebar overlay (mobile) */
.sidebar-overlay{
  display:none;position:fixed;inset:0;
  background:rgba(0,0,0,.35);z-index:150;
}

/* ── Main content ── */
.main{flex:1;padding:2rem 1.75rem 5rem}

/* ── Card ── */
.sc{background:var(--card);border-radius:var(--r);box-shadow:var(--sh);border:1px solid var(--border);overflow:hidden;margin-bottom:1.25rem;border-left:4px solid var(--border)}
.sc-head{
  padding:.85rem 1.5rem;
  display:flex;align-items:center;gap:10px;
  border-bottom:1px solid var(--border);
}
.sc-num{
  width:32px;height:32px;
  background:var(--navy);color:#fff;
  font-size:.82rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;flex-shrink:0;font-family:'Noto Serif TC',serif;
  letter-spacing:.02em;box-shadow:0 2px 6px rgba(27,42,74,.25);
}
.sc-title{color:var(--text);font-family:'Noto Serif TC',serif;font-size:1rem;font-weight:600;letter-spacing:.05em}
.sc-sub{color:var(--muted);font-size:.76rem;margin-left:auto;white-space:nowrap}

/* Section accent colors */
.sc.accent-0{border-left-color:#3B73D0}.sc.accent-0 .sc-head{background:rgba(59,115,208,.06)}.sc.accent-0 .sc-num{background:#3B73D0}
.sc.accent-1{border-left-color:#1E7E5A}.sc.accent-1 .sc-head{background:rgba(30,126,90,.06)}.sc.accent-1 .sc-num{background:#1E7E5A}
.sc.accent-2{border-left-color:#C4903A}.sc.accent-2 .sc-head{background:rgba(196,144,58,.06)}.sc.accent-2 .sc-num{background:#C4903A}
.sc.accent-3{border-left-color:#7C5CBF}.sc.accent-3 .sc-head{background:rgba(124,92,191,.06)}.sc.accent-3 .sc-num{background:#7C5CBF}
.sc.accent-4{border-left-color:#D05A5A}.sc.accent-4 .sc-head{background:rgba(208,90,90,.06)}.sc.accent-4 .sc-num{background:#D05A5A}
.sc.accent-5{border-left-color:#2A8F9D}.sc.accent-5 .sc-head{background:rgba(42,143,157,.06)}.sc.accent-5 .sc-num{background:#2A8F9D}
.sc-body{padding:1.4rem 1.5rem}

/* ── Form ── */
.row2{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}
@media(max-width:580px){.row2{grid-template-columns:1fr}}
.field{margin-bottom:.9rem}
.field:last-child{margin-bottom:0}
.flabel{display:block;font-size:.88rem;font-weight:500;margin-bottom:.4rem}
.flabel .req{color:var(--danger);margin-left:2px}
.finput,.fselect{
  width:100%;padding:.58rem .85rem;
  border:1.5px solid var(--border);border-radius:4px;
  font-family:'Noto Sans TC',sans-serif;font-size:.92rem;
  color:var(--text);background:var(--warm);outline:none;
  transition:border-color .18s;
}
.finput:focus,.fselect:focus{border-color:var(--primary);background:#fff}
.finput.err{border-color:var(--danger)}
.ftextarea{
  width:100%;padding:.7rem .85rem;
  border:1.5px solid var(--border);border-radius:4px;
  font-family:'Noto Sans TC',sans-serif;font-size:.92rem;
  color:var(--text);background:var(--warm);
  resize:vertical;min-height:95px;outline:none;
  transition:border-color .18s;line-height:1.7;
}
.ftextarea:focus{border-color:var(--primary);background:#fff}
.errmsg{font-size:.78rem;color:var(--danger);margin-top:3px}

/* ── Rating ── */
.rq{margin-bottom:1.4rem;padding:1rem 1.1rem 1.4rem;border-bottom:1px solid var(--border);border-radius:6px;transition:background .15s}
.rq:hover{background:rgba(59,115,208,.02)}
.rq:last-child{border-bottom:none;margin-bottom:0;padding-bottom:1rem}
.rq-text{font-size:.95rem;font-weight:500;margin-bottom:.8rem;line-height:1.6}
.rq-note{font-size:.78rem;color:var(--muted);font-weight:400;margin-left:4px}
.rstrip{display:flex}
.rstrip input[type=radio]{display:none}
.rstrip label{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  font-size:.85rem;font-weight:600;cursor:pointer;
  border:1.5px solid var(--border);color:var(--muted);
  transition:all .12s;margin-right:-1px;position:relative;background:var(--warm);
}
.rstrip label:first-of-type{border-radius:4px 0 0 4px}
.rstrip label:last-of-type{border-radius:0 4px 4px 0}
.rstrip label:hover{background:var(--primary);color:#fff;border-color:var(--primary);z-index:1}
.rstrip input[type=radio]:checked+label{z-index:2}
.rstrip input[value="1"]:checked+label{background:#C0392B;color:#fff;border-color:#C0392B}
.rstrip input[value="2"]:checked+label{background:#E67E22;color:#fff;border-color:#E67E22}
.rstrip input[value="3"]:checked+label{background:#F1C40F;color:#fff;border-color:#F1C40F}
.rstrip input[value="4"]:checked+label{background:#27AE60;color:#fff;border-color:#27AE60}
.rstrip input[value="5"]:checked+label{background:#1E7E5A;color:#fff;border-color:#1E7E5A}
.rlabels{display:flex;justify-content:space-between;margin-top:5px;font-size:.74rem;color:var(--muted);max-width:220px}

.crating{display:flex;gap:7px;flex-wrap:wrap}
.crating input[type=radio]{display:none}
.crating label{
  display:flex;flex-direction:column;align-items:center;
  padding:9px 12px;border:1.5px solid var(--border);border-radius:var(--r);
  cursor:pointer;transition:all .15s;background:var(--warm);min-width:68px;text-align:center;
}
.cr-n{font-size:1.15rem;font-weight:700;color:var(--muted);font-family:'Noto Serif TC',serif;line-height:1}
.cr-t{font-size:.72rem;color:var(--muted);margin-top:4px}
.crating label:hover{border-color:var(--primary);background:#fff}
.crating input[type=radio]:checked+label{border-color:var(--navy);background:var(--navy)}
.crating input[type=radio]:checked+label .cr-n{color:var(--gold2)}
.crating input[type=radio]:checked+label .cr-t{color:rgba(255,255,255,.65)}

/* ── Survey intro banner ── */
.si{background:var(--navy);color:#fff;padding:2.25rem;margin-bottom:1.25rem;border-radius:var(--r);position:relative;overflow:hidden}
.si::before{content:'';position:absolute;top:0;right:0;width:200px;height:200px;border:42px solid rgba(255,255,255,.04);border-radius:50%;transform:translate(55px,-85px)}
.si-tag{display:inline-block;background:var(--gold);color:var(--navy);font-size:.65rem;font-weight:700;letter-spacing:.12em;padding:2px 10px;border-radius:2px;margin-bottom:.9rem;text-transform:uppercase}
.si-title{font-family:'Noto Serif TC',serif;font-size:1.5rem;font-weight:700;margin-bottom:.7rem}
.si-desc{font-size:.9rem;color:rgba(255,255,255,.58);max-width:500px;line-height:1.85}

/* ── Buttons ── */
.btn{border:none;cursor:pointer;font-family:'Noto Sans TC',sans-serif;font-weight:500;letter-spacing:.04em;border-radius:4px;transition:all .15s;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.btn-primary{background:var(--primary);color:#fff;padding:.7rem 1.6rem;font-size:.9rem}
.btn-primary:hover{background:#2d5fb8;color:#fff}
.btn-gold{background:var(--gold);color:#fff;padding:.7rem 1.6rem;font-size:.9rem}
.btn-gold:hover{background:#b8821f}
.btn-navy{background:var(--navy);color:#fff;padding:.7rem 1.6rem;font-size:.9rem}
.btn-navy:hover{background:#243556;color:#fff}
.btn-outline{background:#fff;color:var(--text);border:1.5px solid var(--border);padding:.55rem 1.2rem;font-size:.84rem}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-outline.danger{color:var(--danger);border-color:rgba(192,57,43,.4)}
.btn-outline.danger:hover{background:var(--danger);border-color:var(--danger);color:#fff}
.btn-sm{padding:.4rem .85rem;font-size:.8rem}

/* ── Modal ── */
.modal-ov{position:fixed;inset:0;background:rgba(27,42,74,.45);display:flex;align-items:center;justify-content:center;z-index:500;backdrop-filter:blur(3px)}
.modal-card{background:#fff;border-radius:10px;padding:2rem 1.75rem;box-shadow:0 24px 64px rgba(0,0,0,.18);width:90%;max-height:90vh;overflow-y:auto;max-width:520px}
.modal-title{font-family:'Noto Serif TC',serif;font-size:1.12rem;font-weight:700;color:var(--navy);margin-bottom:1.25rem;padding-bottom:.75rem;border-bottom:1px solid var(--border)}
.modal-footer{display:flex;gap:.5rem;justify-content:flex-end;margin-top:1.25rem;padding-top:1rem;border-top:1px solid var(--border)}

/* ── Utilities ── */
.hidden{display:none!important}
.toast{
  position:fixed;top:70px;right:20px;
  background:var(--navy);color:#fff;
  padding:.7rem 1.2rem;border-radius:6px;
  font-size:.88rem;box-shadow:0 4px 16px rgba(0,0,0,.2);
  z-index:1000;animation:slideIn .25s ease;
}
.toast.danger{background:var(--danger)}
.toast.ok{background:var(--ok)}
@keyframes slideIn{from{transform:translateX(20px);opacity:0}to{transform:translateX(0);opacity:1}}

/* ── Mobile ── */
@media(max-width:768px){
  .topbar-toggle{display:block}
  .sidebar{transform:translateX(calc(-1 * var(--sidebar-w)))}
  .sidebar.mobile-open{transform:translateX(0)}
  .sidebar-overlay.mobile-open{display:block}
  .layout-main{margin-left:0}
  .main{padding:1.25rem 1rem 4rem}
}