/* Layout: slim navy app bar, one content column (max 1040px), KPI strip on top, charts then asset table. Tutor mode swaps the home screen for a student list. */
:root{
  --bg:#F4F5F8; --surface:#FFFFFF; --fg:#1B2236; --muted:#5F6A82; --line:#DDE1EA;
  --accent:#E8804B; --accent-ink:#8A3B10; --accent-soft:#FCE9DD; --navy:#1F2A44;
  --head-bg:#1F2A44; --head-fg:#FFFFFF; --input:#FFF6B8; --input-line:#E6D77A;
  --good:#1F7A4D; --good-soft:#DDF1E5; --warn:#9A5B00; --warn-soft:#FDEBC8; --bad:#A63A2B; --bad-soft:#F9DAD5;
  --font-display:'Helvetica Neue',Arial,sans-serif;
  --font-body:Arial,'Helvetica Neue',sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0F1524; --surface:#182036; --fg:#EDEFF6; --muted:#9BA5BC; --line:#2A3452;
  --accent:#F09460; --accent-ink:#F7C4A5; --accent-soft:#3A2A25; --navy:#9DB4E8;
  --head-bg:#0B101D; --head-fg:#FFFFFF; --input:#3A3820; --input-line:#6B6730;
  --good:#6FD0A0; --good-soft:#1B3A2C; --warn:#F1C36A; --warn-soft:#3D3115; --bad:#F0948A; --bad-soft:#40201C; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0F1524; --surface:#182036; --fg:#EDEFF6; --muted:#9BA5BC; --line:#2A3452;
  --accent:#F09460; --accent-ink:#F7C4A5; --accent-soft:#3A2A25; --navy:#9DB4E8;
  --head-bg:#0B101D; --head-fg:#FFFFFF; --input:#3A3820; --input-line:#6B6730;
  --good:#6FD0A0; --good-soft:#1B3A2C; --warn:#F1C36A; --warn-soft:#3D3115; --bad:#F0948A; --bad-soft:#40201C; color-scheme:dark}

*{box-sizing:border-box}
body{background:var(--bg);color:var(--fg);font:15px/1.5 var(--font-body);margin:0}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);background:var(--head-bg);z-index:30}
h1,h2,h3{font-family:var(--font-display);margin:0;letter-spacing:-.01em;text-wrap:balance}
button,input,select{font:inherit;color:inherit}
.num{font-variant-numeric:tabular-nums}

header.bar{background:var(--head-bg);color:var(--head-fg);position:sticky;top:env(safe-area-inset-top,0px);z-index:20}
.bar-in{max-width:1040px;margin:0 auto;display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  padding-block:10px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.brand{font-family:var(--font-display);font-weight:700;font-size:22px;letter-spacing:-.02em}
.brand span{color:var(--accent)}
nav.tabs{display:flex;gap:4px;flex:1;min-width:0;flex-wrap:wrap}
.tab{background:none;border:0;color:#C9D0E2;padding:8px 12px;border-radius:6px;cursor:pointer;font-weight:500}
.tab:hover{color:#fff}
.tab[aria-current="page"]{color:#fff;background:rgba(255,255,255,.12)}
.mode{display:flex;align-items:center;gap:8px;font-size:12px;color:#C9D0E2}
.seg{display:inline-flex;background:rgba(255,255,255,.1);border-radius:8px;padding:2px}
.seg button{background:none;border:0;color:#C9D0E2;padding:5px 10px;border-radius:6px;cursor:pointer;font-size:13px}
.seg button[aria-pressed="true"]{background:var(--accent);color:#1B1206;font-weight:600}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

main{max-width:1040px;margin:0 auto;display:flex;flex-direction:column;gap:20px;
  padding-block:22px 48px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.demo{font-size:13px;color:var(--muted);background:var(--surface);border:1px dashed var(--line);border-radius:8px;padding:8px 12px}
.titlerow{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap}
.titlerow h1{font-size:28px}
.sub{color:var(--muted);font-size:14px;margin-top:2px}
.ro{background:var(--accent-soft);color:var(--accent-ink);border-radius:8px;padding:10px 14px;display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}

.kpis{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:12px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 16px;min-width:0}
.kpi.hero{background:var(--head-bg);color:#fff;border-color:transparent}
.kpi .lab{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.kpi.hero .lab{color:#B7C0D8}
.kpi .val{font-family:var(--font-display);font-size:28px;font-weight:700;margin-top:2px;overflow-wrap:anywhere}
.kpi.hero .val{font-size:36px}
.kpi .note{font-size:13px;color:var(--muted);margin-top:2px}
.kpi.hero .note{color:#B7C0D8}
.pos{color:var(--good)} .neg{color:var(--bad)}
.kpi.hero .pos{color:#7FDDAA}

.grid2{display:grid;grid-template-columns:1.5fr 1fr;gap:12px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px;min-width:0}
.card h2{font-size:17px;margin-bottom:2px}
.chartbox{position:relative;height:280px;margin-top:10px}
.legend{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:8px;font-size:13px;color:var(--muted)}
.dot{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px}

.scroll{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{text-align:right;padding:9px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
th:first-child,td:first-child{text-align:left}
th{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:600}
tfoot td{font-weight:600;border-bottom:0}
tbody tr.click{cursor:pointer}
tbody tr.click:hover{background:var(--bg)}
.share{display:inline-flex;align-items:center;gap:8px;min-width:96px;justify-content:flex-end}
.share i{display:block;height:6px;border-radius:3px;background:var(--accent);min-width:2px}
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600}
.pill.ok{background:var(--good-soft);color:var(--good)} .pill.due{background:var(--warn-soft);color:var(--warn)} .pill.late{background:var(--bad-soft);color:var(--bad)}

.btn{background:var(--accent);color:#1B1206;border:0;border-radius:8px;padding:10px 18px;font-weight:600;cursor:pointer}
.btn:hover{filter:brightness(1.06)}
.btn.ghost{background:none;color:var(--fg);border:1px solid var(--line)}
.btn.sm{padding:6px 12px;font-size:13px}

.erow{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:10px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.erow.head{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:600;padding-top:0}
.erow .nm{display:flex;align-items:center;min-width:0}
.erow .prev{color:var(--muted);text-align:right}
.erow label{display:none}
.field{display:flex;align-items:center;background:var(--input);border:1px solid var(--input-line);border-radius:8px;padding:0 10px}
.field span{color:var(--muted)}
.field input{background:none;border:0;width:100%;padding:9px 6px;text-align:right;min-width:0}
.field input:focus{outline:none}
.field:focus-within{outline:2px solid var(--accent)}
.erow .chg{grid-column:1/-1;text-align:right;font-size:13px;color:var(--muted);margin-top:-4px}.erow .chg:empty{display:none}
.entry-top{display:flex;gap:12px;align-items:end;flex-wrap:wrap}
.entry-top select{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:9px 12px}
.addrow{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.addrow input{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:8px 12px;min-width:0;flex:1 1 180px}
.sumbar{display:flex;gap:24px;flex-wrap:wrap;justify-content:space-between;align-items:center;margin-top:16px}
.sumbar b{font-family:var(--font-display);font-size:20px}
textarea.csv{width:100%;height:120px;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px;font:12px/1.4 ui-monospace,Menlo,monospace;color:var(--fg);margin-top:10px}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(20px + env(safe-area-inset-bottom,0px));background:var(--navy);color:var(--bg);padding:10px 18px;border-radius:8px;z-index:40;font-weight:500}
[data-theme="dark"] .toast{color:#0F1524}

@media (max-width:760px){
  .kpis{grid-template-columns:1fr 1fr}.kpi.hero{grid-column:1/-1}
  .grid2{grid-template-columns:1fr}
  .erow{grid-template-columns:1fr 1fr}
  .erow.head{display:none}
  .erow .nm{grid-column:1/-1}
  .erow .prev{display:none}
  .erow label{display:block;font-size:12px;color:var(--muted);margin-bottom:2px}
  .erow .chg{grid-column:1/-1;text-align:left}
}
@media (prefers-reduced-motion:no-preference){.kpi,.card{animation:rise .35s ease both}}
@keyframes rise{from{opacity:.001;transform:translateY(6px)}to{opacity:1;transform:none}}

.seg2{display:inline-flex;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:2px}
.seg2 button{background:none;border:0;padding:6px 12px;border-radius:6px;cursor:pointer;font-size:13px;color:var(--muted)}
.seg2 button[aria-pressed="true"]{background:var(--head-bg);color:#fff;font-weight:600}
.tag{display:inline-block;margin-left:8px;font-size:11px;font-weight:600;color:var(--accent-ink);background:var(--accent-soft);border-radius:999px;padding:1px 8px}
.sec{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:18px 0 4px}
.sec:first-child{margin-top:0}
.sec h2{font-size:17px}
.cfgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:8px}
.cfgrid .big{font-family:var(--font-display);font-size:22px;font-weight:700;padding:9px 0}
.arow{display:grid;grid-template-columns:36px 1.6fr 90px 1fr auto;gap:10px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.arow input[type=text]{background:var(--input);border:1px solid var(--input-line);border-radius:8px;padding:9px 10px;min-width:0;width:100%}
.arow .sw{width:28px;height:28px;border-radius:8px;border:0;cursor:pointer}
.arow label.ck{display:flex;gap:6px;align-items:center;font-size:13px;color:var(--muted)}
.arow .v{text-align:right}
.arow.head{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:600;padding-top:0}
.idea{display:grid;grid-template-columns:64px 1fr auto;gap:14px;align-items:start;padding:14px 0;border-bottom:1px solid var(--line)}
.vote{display:flex;flex-direction:column;align-items:center;gap:2px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:8px 0;cursor:pointer;width:64px}
.vote:hover{border-color:var(--accent)}
.vote[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#1B1206}
.vote b{font-family:var(--font-display);font-size:20px;line-height:1}
.vote small{font-size:11px;text-transform:uppercase;letter-spacing:.05em}
.vote.static{cursor:default}.vote.static:hover{border-color:var(--line)}
.idea h3{font-size:16px}.idea p{margin:2px 0 0;color:var(--muted);font-size:14px}
.pill.new{background:var(--bg);color:var(--muted);border:1px solid var(--line)}.pill.plan{background:var(--accent-soft);color:var(--accent-ink)}
.ideaform{display:grid;gap:10px}
.ideaform input,.ideaform textarea,.idea select{background:var(--input);border:1px solid var(--input-line);border-radius:8px;padding:9px 12px;width:100%;font:inherit}
.ideaform textarea{min-height:64px;resize:vertical}
.idea select{background:var(--surface);border-color:var(--line);width:auto}
@media (max-width:760px){.idea{grid-template-columns:64px 1fr}.idea>div:last-child{grid-column:2}}
.msg{margin-top:10px;color:var(--warn);font-size:13px}
.legendnote{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-top:8px}
@media (max-width:760px){
  .cfgrid{grid-template-columns:1fr}
  .arow{grid-template-columns:36px 1fr auto}
  .arow.head{display:none}
  .arow .ckw,.arow .v{grid-column:2/-1;text-align:left}
}

.bar-r{display:flex;gap:6px;align-items:center;font-size:13px;color:#C9D0E2}
.bar-r .tab{padding:6px 10px;font-size:13px}
.bar-r .who{max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.login{max-width:440px;margin:6vh auto 0;display:grid;gap:14px}
.login h1{font-size:26px}
.login form{display:grid;gap:12px}
.login input[type=email],.login input[type=text]{background:var(--input);border:1px solid var(--input-line);border-radius:8px;padding:11px 12px;width:100%}
.ck2{display:flex;gap:10px;align-items:flex-start;font-size:14px}
.ck2 input{margin-top:4px}
.err{color:var(--bad);font-size:14px}
.okm{color:var(--good);font-size:14px}
.foot{max-width:1040px;margin:0 auto;color:var(--muted);font-size:12px;padding-block:0 32px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.foot a{color:inherit}
.dz{border:1px solid var(--bad);border-radius:10px;padding:16px;display:grid;gap:10px}
.btn.danger{background:var(--bad);color:#fff}
.btn[disabled]{opacity:.6;cursor:wait}
.list-note{list-style:disc;padding-left:20px;display:grid;gap:4px;margin:6px 0}
.search{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:9px 12px;min-width:0;flex:1 1 220px}

.kpis4{grid-template-columns:repeat(4,1fr)}
@media (max-width:760px){
  .bar-in{gap:8px 12px}
  .brand{order:1}.bar-r{order:2;margin-left:auto}
  nav.tabs{order:3;flex-basis:100%;flex-wrap:nowrap;overflow-x:auto;gap:2px;padding-bottom:2px;scrollbar-width:none}
  nav.tabs::-webkit-scrollbar{display:none}
  .tab{white-space:nowrap}
  .bar-r .who{display:none}
  .kpis4{grid-template-columns:1fr 1fr}
  .kpis:not(.kpis4) .kpi:nth-child(4){grid-column:1/-1}
}