/* VINI Exam System: shared styles for the three portals */
:root{
  --bg:#f3f3f0; --card:#ffffff; --line:#e3e3dd; --line2:#ecece7; --ink:#1f1e1d; --muted:#6b6a68; --soft:#f6f6f2;
  --brand:#1f5a4f; --brand-ink:#ffffff; --brand-soft:#e3efe9; --side:#1e2420; --side-ink:#e9ece9; --side-mut:#9aa39d;
  --amber:#b7791f; --amber-soft:#fdf3df; --red:#a3382b; --red-soft:#f8e2de; --ok:#2f7d4f; --ok-soft:#e3f1e6; --blue:#2c5d8f; --blue-soft:#e3edf7;
  --r:12px; --shadow:0 1px 2px rgba(0,0,0,.05);
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.45 Inter,system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--brand)} button{font:inherit;cursor:pointer} input,select,textarea{font:inherit;color:var(--ink)}
h1{font-size:26px;margin:4px 0 0;letter-spacing:-.2px} h2{font-size:19px;margin:0} h3{font-size:16px;margin:0}
.eyebrow{font-size:11.5px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:var(--muted)}
.muted{color:var(--muted)} .small{font-size:13px} .mono{font-family:ui-monospace,Consolas,monospace}
.hidden,[hidden]{display:none!important}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap} .spread{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.stack{display:grid;gap:12px} .grow{flex:1;min-width:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;box-shadow:var(--shadow)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:9px;padding:9px 14px;font-weight:600;font-size:14px;text-decoration:none;white-space:nowrap}
.btn:hover{border-color:#cfcfc7} .btn:disabled{opacity:.5;cursor:default}
.btn.yes{background:var(--brand);border-color:var(--brand);color:#fff} .btn.yes:hover{background:#184a41}
.btn.danger{background:var(--red);border-color:var(--red);color:#fff} .btn.warn{color:var(--red);border-color:#e6c2bc}
.btn.ghost{border-color:transparent;background:transparent} .btn.ghost:hover{background:var(--soft)}
.btn.sm{padding:6px 10px;font-size:13px;border-radius:8px} .btn.on{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.wa{background:#1f8f4e;border-color:#1f8f4e;color:#fff}
label.field{display:grid;gap:5px;font-size:13px;font-weight:600;color:#3a3936} .field>span{font-size:13px;font-weight:600;color:#3a3936}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=tel],input[type=datetime-local],input:not([type]),select,textarea{
  width:100%;border:1px solid #d6d6cf;border-radius:9px;padding:10px 12px;background:#fff;font-size:15px;font-weight:400}
input:focus,select:focus,textarea:focus{outline:2px solid #9cc5b9;border-color:var(--brand)}
textarea{min-height:80px;resize:vertical}
.form{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.chip{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--soft);color:var(--muted);white-space:nowrap}
.chip.ok{background:var(--ok-soft);color:var(--ok)} .chip.warn{background:var(--amber-soft);color:var(--amber)} .chip.bad{background:var(--red-soft);color:var(--red)}
.chip.brand{background:var(--brand-soft);color:var(--brand)} .chip.blue{background:var(--blue-soft);color:var(--blue)}
.note{border-radius:10px;padding:11px 14px;background:var(--amber-soft);font-size:14px;display:flex;gap:10px;justify-content:space-between;align-items:center;flex-wrap:wrap}
.note.ok{background:var(--ok-soft)} .note.bad{background:var(--red-soft)} .note.calm{background:var(--soft)} .note.blue{background:var(--blue-soft)}
table{width:100%;border-collapse:collapse;font-size:14px} th{font-size:11.5px;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);text-align:left;font-weight:700;padding:10px 8px;border-bottom:1px solid var(--line)}
td{padding:10px 8px;border-bottom:1px solid var(--line2);vertical-align:middle} .tablewrap{overflow-x:auto}
tr:last-child td{border-bottom:0}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px}
.tile .big{font-size:30px;font-weight:700;letter-spacing:-.5px;margin:4px 0 2px}
.bar{height:10px;border-radius:6px;background:#e9e9e4;overflow:hidden;display:flex} .bar span{display:block;height:100%}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:22px;background:var(--ink);color:#fff;padding:11px 16px;border-radius:10px;font-weight:600;font-size:14px;z-index:90;max-width:calc(100% - 32px);box-shadow:0 6px 24px rgba(0,0,0,.2)}
.overlay{position:fixed;inset:0;background:rgba(20,24,22,.55);display:grid;place-items:center;padding:16px;z-index:60}
.modal{background:#fff;border-radius:14px;padding:22px;width:min(520px,100%);max-height:calc(100vh - 32px);overflow:auto;display:grid;gap:14px}
.modal.wide{width:min(1100px,100%)}
.err{color:var(--red);font-weight:600;font-size:14px}
.brandmark{display:flex;align-items:center;gap:10px} .brandmark .v{width:38px;height:38px;border-radius:9px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px}
.brandmark b{display:block;font-size:16px} .brandmark small{display:block;font-size:11px;letter-spacing:1.6px;text-transform:uppercase;opacity:.75}
.brandmark img{width:38px;height:38px;border-radius:9px;object-fit:contain;background:#fff}

/* sidebar layout (faculty, superadmin) */
.app{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:100vh}
.side{background:var(--side);color:var(--side-ink);padding:22px 14px;display:flex;flex-direction:column;gap:18px;position:sticky;top:0;height:100vh}
.side .brandmark .v{background:#2a6a5d}
.nav{display:grid;gap:4px} .nav button{display:flex;justify-content:space-between;align-items:center;background:transparent;border:0;color:var(--side-ink);text-align:left;padding:10px 12px;border-radius:9px;font-size:14.5px;font-weight:500}
.nav button:hover{background:rgba(255,255,255,.06)} .nav button.on{background:rgba(255,255,255,.12);font-weight:700}
.nav .count{background:#e0a43a;color:#2a1c00;font-size:11.5px;font-weight:800;border-radius:999px;padding:1px 7px}
.side .foot{margin-top:auto;font-size:12.5px;color:var(--side-mut);display:grid;gap:8px}
.side .foot .btn{background:transparent;color:var(--side-ink);border-color:rgba(255,255,255,.2)}
.main{padding:30px 34px 60px;min-width:0}
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:14px;flex-wrap:wrap;margin-bottom:20px}
.tabs{display:flex;gap:6px;flex-wrap:wrap} .tabs button{border:0;background:#e6e6e0;border-radius:999px;padding:7px 14px;font-weight:600;font-size:13.5px;color:#3a3936}
.tabs button.on{background:var(--brand);color:#fff}
@media (max-width:820px){.app{grid-template-columns:1fr}.side{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;padding:12px}.side .nav{display:flex;flex-wrap:wrap}.side .foot{margin:0}.main{padding:18px 14px 50px}}

/* sign-in pages */
.authwrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.authwrap.dark{background:var(--side)} .authwrap.dark .brandmark{color:#fff}
.authcard{background:#fff;border-radius:14px;padding:26px;width:min(420px,100%);display:grid;gap:14px;box-shadow:0 10px 40px rgba(0,0,0,.12)}
.authfoot{font-size:12.5px;color:var(--side-mut);text-align:center;margin-top:14px}
.authwrap:not(.dark) .authfoot{color:var(--muted)}

/* student (phone first) */
.top{background:var(--brand);color:#fff;padding:14px 16px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.top .brandmark small{opacity:.8} .top .btn{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);color:#fff}
.page{max-width:760px;margin:0 auto;padding:16px 14px 70px;display:grid;gap:14px}
.tcard{display:grid;gap:8px} .tcard .t{font-weight:700;font-size:16px}
.footer{font-size:12px;color:var(--muted);text-align:center;padding:20px 14px 30px;max-width:760px;margin:0 auto}

/* exam screen (portrait) */
.exam{height:100vh;height:100dvh;display:flex;flex-direction:column;background:#eef1ef;overflow:hidden}
.exbar{background:var(--brand);color:#fff;padding:8px 12px;display:flex;align-items:center;gap:10px}
.exbar .tm{font-variant-numeric:tabular-nums;font-weight:800;font-size:17px;background:rgba(255,255,255,.14);padding:4px 10px;border-radius:8px}
.exbar .tm.low{background:#e0a43a;color:#2a1c00}
.exbar .sv{font-size:11.5px;opacity:.85}
.strip{display:flex;gap:6px;overflow-x:auto;padding:8px 10px;background:#fff;border-bottom:1px solid var(--line);scrollbar-width:thin}
.strip button{flex:0 0 34px;height:34px;border-radius:50%;border:1.5px solid #c9cfcb;background:#fff;font-weight:700;font-size:12.5px;color:#3a3936;padding:0}
.strip button.a{background:var(--brand);border-color:var(--brand);color:#fff} .strip button.r{background:#e0a43a;border-color:#e0a43a;color:#2a1c00}
.strip button.cur{box-shadow:0 0 0 3px #9cc5b9}
.qarea{flex:1;overflow:auto;padding:10px;position:relative;-webkit-overflow-scrolling:touch}
.qhead{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);margin:0 2px 6px}
.qimgwrap{position:relative;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.qimgwrap img{display:block;width:100%;height:auto;user-select:none;-webkit-user-drag:none}
.wm{position:absolute;inset:0;pointer-events:none;display:flex;flex-wrap:wrap;align-content:space-around;justify-content:space-around;overflow:hidden;opacity:.11;font-size:12px;font-weight:700;color:#1f5a4f;transform:rotate(-14deg) scale(1.3)}
.wm span{padding:16px 22px;white-space:nowrap}
.zoom{position:absolute;right:16px;bottom:14px;display:flex;gap:6px}
.zoom button{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:20px;font-weight:700;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.apanel{background:#fff;border-top:1px solid var(--line);padding:10px 12px calc(10px + env(safe-area-inset-bottom));display:grid;gap:8px;box-shadow:0 -4px 16px rgba(0,0,0,.05)}
.opts{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.opts button{height:50px;border-radius:11px;border:1.5px solid #c9cfcb;background:#f6f8f7;font-size:19px;font-weight:800;color:var(--brand)}
.opts button.on{background:var(--brand);border-color:var(--brand);color:#fff}
.keypad{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}
.keypad button{height:42px;border-radius:9px;border:1px solid #d3d8d5;background:#f6f8f7;font-size:18px;font-weight:700}
.numshow{display:flex;justify-content:space-between;align-items:center;border:1.5px solid var(--brand);border-radius:10px;padding:8px 12px;font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;min-height:46px}
.exnav{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
.banner{position:fixed;top:60px;left:50%;transform:translateX(-50%);background:#e0a43a;color:#2a1c00;font-weight:700;padding:10px 16px;border-radius:10px;z-index:80;box-shadow:0 6px 18px rgba(0,0,0,.18);max-width:calc(100% - 24px);text-align:center}

/* report card */
.rhead{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.rhead div{background:var(--soft);border-radius:10px;padding:10px;text-align:center} .rhead b{display:block;font-size:22px} .rhead span{font-size:12px;color:var(--muted)}
@media (max-width:520px){.rhead{grid-template-columns:repeat(2,1fr)}}
.meter{display:grid;grid-template-columns:minmax(90px,1.3fr) 3fr 50px;gap:8px;align-items:center;font-size:14px;padding:5px 0}
.meter .bar{height:9px}
.qrev{border-top:1px solid var(--line2);padding:10px 0;display:grid;gap:8px}
.qrev img{width:100%;border:1px solid var(--line);border-radius:6px;background:#fff}
.st-right{color:var(--ok)} .st-wrong{color:var(--red)} .st-left{color:var(--muted)} .st-partial{color:var(--amber)} .st-bonus{color:var(--blue)}
.dot{width:26px;height:26px;border-radius:50%;display:inline-grid;place-items:center;font-size:12px;font-weight:800;background:var(--soft)}
.dot.right{background:var(--ok-soft);color:var(--ok)} .dot.wrong{background:var(--red-soft);color:var(--red)} .dot.partial{background:var(--amber-soft);color:var(--amber)} .dot.bonus{background:var(--blue-soft);color:var(--blue)}

/* faculty review cards: question 60% · tags 15% · solution 25% */
.rcard{display:grid;grid-template-columns:minmax(0,60fr) minmax(150px,15fr) minmax(0,25fr);gap:12px;border:1px solid var(--line);border-radius:12px;background:#fff;padding:12px;align-items:start}
.rcard.flag{border-color:#e7b65a;box-shadow:inset 4px 0 0 #e0a43a} .rcard.bad{border-color:#e6a99f;box-shadow:inset 4px 0 0 var(--red)}
.rcard img{width:100%;display:block;border:1px solid var(--line2);border-radius:6px;background:#fff}
.tagcard{border:1px solid var(--line);border-radius:10px;background:var(--soft);padding:10px;display:grid;gap:5px;text-align:left;font-size:13px;width:100%}
.tagcard:hover{border-color:var(--brand)} .tagcard .k{font-size:22px;font-weight:800;color:var(--brand);font-family:ui-monospace,Consolas,monospace;word-break:break-all}
.solbox{font-size:12px;color:var(--muted)}
@media (max-width:900px){.rcard{grid-template-columns:1fr}}
.seg{display:flex;gap:4px;flex-wrap:wrap} .seg button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 10px;font-weight:700;font-size:13px}
.seg button.on{background:var(--brand);border-color:var(--brand);color:#fff}
.pop{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:0;padding:0;width:min(1160px,100%);height:min(780px,calc(100vh - 32px));overflow:hidden}
.pop .qs{overflow:auto;padding:16px;background:var(--soft)} .pop .qs img{width:100%;border:1px solid var(--line);border-radius:6px;background:#fff;margin-bottom:10px}
.pop .ed{overflow:auto;padding:18px;display:grid;gap:12px;align-content:start;border-left:1px solid var(--line)}
@media (max-width:860px){.pop{grid-template-columns:1fr;height:auto}}
.phone{width:390px;max-width:100%;border:10px solid #222;border-radius:34px;overflow:hidden;background:#eef1ef;height:720px;display:flex;flex-direction:column;margin:auto}
.drop{border:2px dashed #cfd5d1;border-radius:12px;padding:18px;display:grid;gap:8px;background:#fafaf7}
.drop.has{border-style:solid;border-color:#9cc5b9;background:#f3f8f6}
.pbar{height:6px;border-radius:4px;background:#e6e6e0;overflow:hidden} .pbar span{display:block;height:100%;background:var(--brand)}

/* fix cuts */
.fxpages{display:grid;gap:20px;justify-items:center}
.fxwrap{width:min(820px,100%);display:grid;gap:6px}
.fxpage{position:relative;width:100%;background:#fff;border:1px solid var(--line);box-shadow:0 2px 10px rgba(0,0,0,.08);user-select:none}
.fxpage img{width:100%;height:100%;display:block}
.fxbox{position:absolute;left:1.5%;right:1.5%;border:2px solid;border-radius:4px;background:rgba(31,90,79,.06)}
.fxbox.pas{border-style:dashed;background:rgba(224,164,58,.08)}
.fxt{position:absolute;right:-2px;top:-2px;color:#fff;font-size:12px;font-weight:700;padding:2px 6px;border-radius:0 4px 0 6px;display:flex;gap:6px;align-items:center;white-space:nowrap;opacity:.92}
.fxt button{font:inherit;font-size:11px;font-weight:700;color:#fff;background:rgba(255,255,255,.2);border:0;border-radius:4px;padding:1px 6px}
.fxh{position:absolute;left:0;right:0;height:12px;cursor:ns-resize;touch-action:none} .fxh.t{top:-7px} .fxh.b{bottom:-7px}
.fxh::after{content:"";position:absolute;left:50%;top:4px;width:44px;height:4px;margin-left:-22px;border-radius:2px;background:currentColor;opacity:.6}