/* TARK IAS PCS Test Portal — one look for the student site and the teacher portal.
   Orange carries the brand and every action; green means correct, red means wrong, grey means left. */
:root{
  --bg:#FFF8F1; --surface:#FFFFFF; --sunk:#FFF1E4; --ink:#2A1A0E; --muted:#7A6250; --line:#F1DCC8;
  --o1:#F26B0F; --o2:#FF9F1C; --o-deep:#B9470A; --o-soft:#FFE7D1; --o-ink:#FFFFFF;
  --good:#138A4B; --good-soft:#E3F5EA; --bad:#D63A3A; --bad-soft:#FDE6E4; --warn:#B07800; --warn-soft:#FFF3D1; --left:#CBBBAE;
  --shadow:0 1px 2px rgba(120,60,10,.06),0 10px 28px rgba(120,60,10,.10);
  --f-display:"Baloo 2","Mukta",system-ui,sans-serif; --f-body:"Mukta","Noto Sans Devanagari",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-num:"Baloo 2","Mukta",system-ui,sans-serif;
  --r:18px; color-scheme:light;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--o-deep)}
button,input,select,textarea{font:inherit;color:inherit}
img{max-width:100%}
[hidden]{display:none!important}
.wrap{max-width:1120px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--f-display);line-height:1.1;margin:0;text-wrap:balance}
h1{font-size:clamp(32px,6vw,56px);font-weight:800;letter-spacing:-.01em}
h2{font-size:24px;font-weight:800} h3{font-size:18px;font-weight:700}
p{margin:0}
.muted{color:var(--muted)} .hint{font-size:14px;color:var(--muted)} .err{color:var(--bad);font-weight:600}
.hi{font-size:.9em;color:var(--muted);font-weight:500}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.spread{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.stack{display:grid;gap:14px;min-width:0}
.eyebrow{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--o-deep)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1.5px solid var(--line);background:var(--surface);padding:10px 18px;border-radius:999px;cursor:pointer;font-weight:700;text-decoration:none;color:var(--ink);white-space:nowrap;transition:transform .12s,box-shadow .12s}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.btn.primary{background:linear-gradient(135deg,var(--o2),var(--o1));border-color:transparent;color:var(--o-ink);box-shadow:0 6px 18px rgba(242,107,15,.35)}
.btn.dark{background:var(--ink);border-color:var(--ink);color:#fff}
.btn.green{background:var(--good);border-color:var(--good);color:#fff}
.btn.big{padding:14px 26px;font-size:18px}
.btn.small{padding:6px 12px;font-size:14px}
.btn.block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn.danger{color:var(--bad)}
:focus-visible{outline:3px solid var(--o2);outline-offset:2px}

/* cards, fields */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow);display:grid;gap:16px;min-width:0}
.field{display:grid;gap:6px;font-weight:700;font-size:15px;min-width:0}
.field small{font-weight:500;color:var(--muted)}
input[type=text],input[type=tel],input[type=password],input[type=number],select,textarea{width:100%;background:#fff;border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;font-size:16px;min-width:0}
input:focus,select:focus,textarea:focus{border-color:var(--o1);outline:none;box-shadow:0 0 0 4px var(--o-soft)}
textarea{resize:vertical;min-height:80px}
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:14px}
.check{display:flex;gap:8px;align-items:center;font-weight:500;font-size:15px}
.check input{width:20px;height:20px;accent-color:var(--o1)}

.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;padding:3px 11px;border-radius:999px;white-space:nowrap;background:var(--sunk);color:var(--muted)}
.chip.good{background:var(--good-soft);color:var(--good)} .chip.bad{background:var(--bad-soft);color:var(--bad)} .chip.warn{background:var(--warn-soft);color:var(--warn)} .chip.brand{background:var(--o1);color:#fff}
.banner{padding:14px 16px;border-radius:14px;background:var(--o-soft);border:1px solid var(--line)}
.banner.ok{background:var(--good-soft)} .banner.bad{background:var(--bad-soft)}

/* result building blocks (shared by student and teacher) */
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.kpi{border-radius:14px;padding:12px 14px;background:var(--sunk);display:grid;gap:2px}
.kpi .k{font-size:12px;letter-spacing:.08em;text-transform:uppercase;font-weight:700;color:var(--muted)}
.kpi .v{font-family:var(--f-num);font-size:30px;font-weight:800;line-height:1.1}
.kpi .s{font-size:13px;color:var(--muted)}
.kpi.good{background:var(--good-soft)} .kpi.good .v{color:var(--good)} .kpi.bad{background:var(--bad-soft)} .kpi.bad .v{color:var(--bad)}
.splitbar{display:flex;height:12px;border-radius:6px;overflow:hidden;background:var(--left);min-width:70px}
.splitbar i{display:block;height:100%} .splitbar .c{background:var(--good)} .splitbar .w{background:var(--bad)}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.legend span::before{content:"";display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;background:var(--left)}
.legend .lc::before{background:var(--good)} .legend .lw::before{background:var(--bad)}
.secrow{display:grid;grid-template-columns:minmax(96px,150px) 1fr auto auto;gap:10px;align-items:center;font-size:15px;padding:6px 0;border-bottom:1px dashed var(--line)}
.secrow:last-child{border-bottom:0}
.secrow .n{font-family:var(--f-num);font-weight:700;white-space:nowrap}
.weakgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:12px}
.weak{border-radius:14px;padding:14px;background:var(--bad-soft);display:grid;gap:6px;align-content:start}
.weak.strong{background:var(--good-soft)}
.weak .big{font-family:var(--f-num);font-size:26px;font-weight:800}
.guide{display:grid;gap:8px;margin:0;padding:0;list-style:none}
.guide li{padding:10px 14px;border-radius:12px;background:var(--sunk);border-left:4px solid var(--left)}
.guide li.bad{border-left-color:var(--bad)} .guide li.warn{border-left-color:var(--warn)} .guide li.good{border-left-color:var(--good)}
.plan{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:10px;list-style:none;margin:0;padding:0;counter-reset:st}
.plan li{counter-increment:st;border-radius:14px;padding:14px;background:linear-gradient(160deg,var(--o-soft),#fff);border:1px solid var(--line);display:grid;gap:4px}
.plan li::before{content:"Step " counter(st);font-size:12px;letter-spacing:.1em;text-transform:uppercase;font-weight:800;color:var(--o1)}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:#fff}
table{border-collapse:collapse;width:100%;font-size:15px}
th{text-align:left;font-size:12px;letter-spacing:.07em;text-transform:uppercase;color:var(--o-deep);font-weight:800;padding:10px 12px;background:var(--sunk);border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:0}
td.n,th.n{text-align:right;font-variant-numeric:tabular-nums}
td .sub{display:block;font-size:13px;color:var(--muted)}
.donut{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.donut svg{width:150px;height:150px;flex:none}
#toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 20px;border-radius:999px;font-weight:700;opacity:0;pointer-events:none;transition:opacity .2s;z-index:50;max-width:calc(100% - 32px);text-align:center}
#toast.show{opacity:1}
.spinner{width:22px;height:22px;border-radius:50%;border:3px solid var(--o-soft);border-top-color:var(--o1);animation:spin 0.8s linear infinite;flex:none}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.btn,#toast{transition:none}.spinner{animation-duration:3s}}
@media (max-width:560px){.kpis{grid-template-columns:repeat(3,1fr)}.kpi .v{font-size:24px}.secrow{grid-template-columns:1fr auto auto}.secrow .splitbar{grid-column:1/-1;grid-row:2}.card{padding:18px}}