/* EDUVIA CBT v114ZJ — Portal Guru blue retro controls; canonical stylesheet. */
:root{font-family:Inter,"Segoe UI Variable","Segoe UI",ui-sans-serif,-apple-system,BlinkMacSystemFont,Arial,sans-serif;color:var(--ink);background:var(--canvas);font-synthesis:none;font-size:15px;line-height:1.6;
  --blue:#078ee8;
  --blue-mid:#006fd1;
  --blue-strong:#003f9e;
  --blue-soft:#f3f8ff;
  --blue-border:#b8ddff;
  --ink:#0f172a;
  --muted:#64748b;
  --border:#dbeeff;
  --surface:#fff;
  --canvas:#f7faff;
  --danger:#b91c1c;
  --radius:15px;
  --shadow:0 7px 16px rgba(0,111,209,.08);
  --nav-shadow:inset 6px 0 0 var(--blue);
  --active-shadow:inset 7px 0 0 var(--blue-strong),0 10px 22px rgba(0,111,209,.18)}

*{box-sizing:border-box}
body{margin:0}
button,input,select,textarea{font:inherit}
button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}
button,.button{border:1.5px solid var(--blue-border);border-radius:12px;min-height:44px;padding:10px 16px;background:var(--blue-soft);color:var(--blue-strong);font-weight:750;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;box-shadow:inset 3px 0 0 var(--blue-border),0 3px 8px rgba(0,111,209,.05);line-height:1.4;overflow-wrap:anywhere}
button:hover,.button:hover{background:#e9f5ff;border-color:var(--blue);box-shadow:inset 3px 0 0 var(--blue),var(--shadow)}
button.primary,.button.primary{background:var(--blue-mid);color:var(--surface);border-color:var(--blue-strong);box-shadow:inset 4px 0 0 var(--blue-strong),var(--shadow)}
button.primary:hover,.button.primary:hover{background:var(--blue-strong);border-color:var(--blue-strong)}
button.danger{color:var(--danger);border-color:#f3b4b4;background:#fff7f7;box-shadow:inset 3px 0 0 #ef4444,0 3px 8px rgba(185,28,28,.05)}
button:disabled{opacity:.55;cursor:not-allowed;box-shadow:none}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--blue-strong);outline-offset:3px}
a{color:var(--blue-mid)}
h1,h2,h3,p{margin:0}
h1{font-size:30px;line-height:1.25;letter-spacing:-.7px}
h2{font-size:23px;line-height:1.35;letter-spacing:-.4px}
h3{font-size:17px;line-height:1.45}
p{margin:8px 0}
small,.muted{color:var(--muted)}
small{font-size:12px}
.pre{white-space:pre-wrap;overflow-wrap:anywhere}
.eyebrow{font-size:11px;letter-spacing:1.5px;font-weight:850;text-transform:uppercase;color:var(--blue-mid);margin-bottom:10px}
.brand{display:flex;flex-direction:column;align-items:flex-start;gap:8px;width:100%;min-width:0}
.brand-logo{display:block;width:100%;height:auto;object-fit:contain}
.brand-context{font-size:11px;letter-spacing:1.4px;text-transform:uppercase;color:var(--blue-strong);font-weight:800}
.sidebar-brand{position:relative;width:100%;flex-shrink:0}
.sidebar-brand .brand{padding:4px 0 20px;border-bottom:2px solid var(--border)}
.welcome .brand{max-width:420px;margin-bottom:65px}
.sidebar .nav{flex-shrink:0}
.welcome{max-width:1000px;margin:8vh auto;padding:32px}
.welcome h1{font-size:clamp(32px,5vw,55px);max-width:720px;line-height:1.12}
.welcome .intro{max-width:570px;font-size:18px;color:var(--muted);margin:22px 0 30px}
.login-options{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:730px;margin-top:32px}
.login-card{border:1.5px solid var(--blue-border);border-radius:22px;background:var(--surface);padding:26px;text-decoration:none;color:var(--ink);display:block;box-shadow:inset 6px 0 0 var(--blue),var(--shadow)}
.login-card:hover{border-color:var(--blue);background:var(--blue-soft);box-shadow:var(--active-shadow)}
.login-card strong{font-size:20px}
.login-card p{color:var(--muted);font-size:14px}
.login-card span{color:var(--blue-mid);font-weight:800;display:block;margin-top:24px}
.welcome-note{margin-top:28px;font-size:13px;color:var(--muted)}
.layout{min-height:100dvh;display:grid;grid-template-columns:252px minmax(0,1fr)}
.sidebar{overflow:auto;background:var(--surface);border-right:2px solid var(--border);height:100dvh;position:sticky;top:0;padding:28px 18px;display:flex;flex-direction:column;gap:26px;box-shadow:4px 0 18px rgba(0,111,209,.035)}
.nav{display:grid;gap:12px;padding:3px 3px 14px}
.nav button{justify-content:flex-start;min-height:48px;padding:12px 13px 12px 17px;background:var(--blue-soft);border:1.5px solid var(--blue);border-radius:var(--radius);color:var(--blue-mid);font-size:13px;font-weight:750;box-shadow:var(--nav-shadow);text-align:left;width:100%;min-width:0}
.nav button[aria-current=page]{background:var(--blue);color:var(--surface);border-color:var(--blue);box-shadow:var(--active-shadow)}
.nav button:hover,.nav button:focus-visible{background:var(--blue);color:var(--surface);border-color:var(--blue);box-shadow:var(--active-shadow)}

.nav .nav-letter{display:grid;place-items:center;flex:0 0 24px;width:24px;height:24px;border:1px solid currentColor;border-radius:8px;font-size:11px;font-weight:800}
.sidebar-bottom{margin-top:auto;display:grid;gap:10px}
.account{padding:16px 12px;border:1px solid var(--blue-border);border-radius:12px;background:var(--blue-soft);overflow-wrap:anywhere}
.account strong{display:block;font-size:14px}
.sidebar-bottom .button{font-size:12px}
.sidebar-bottom [data-action=logout]{border-color:#ef4444;color:var(--danger);background:#fff7f7;box-shadow:inset 3px 0 0 #ef4444}
.sidebar-bottom [data-action=logout]:hover{background:#b91c1c;color:var(--surface);border-color:#b91c1c}
.content{min-width:0}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 32px;border-bottom:2px solid var(--border);background:var(--surface);box-shadow:0 3px 12px rgba(0,111,209,.035)}
.topbar small{letter-spacing:.5px}
.mobile-toggle{display:none}
.workspace{max-width:1400px;margin:auto;padding:32px}
.page-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;flex-wrap:wrap;margin-bottom:22px}
.page-heading p{color:var(--muted);font-size:14px}
.actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.status:empty{display:none}
.status{border:1px solid var(--blue-border);border-radius:12px;padding:13px 17px;background:var(--blue-soft);color:var(--blue-strong);box-shadow:inset 4px 0 0 var(--blue);margin-bottom:20px;white-space:pre-wrap;overflow-wrap:anywhere}
.status.error{background:#fff1f2;color:#991b1b;border-color:#fecaca;box-shadow:inset 4px 0 0 #ef4444}
.status a{font-weight:700}
.filters{display:flex;gap:10px;align-items:flex-end;margin:22px 0}
.filters input{max-width:400px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,330px),1fr));gap:20px}
.card{background:var(--surface);border:1.5px solid var(--blue-border);border-radius:20px;padding:24px;min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:12px;box-shadow:inset 4px 0 0 var(--blue),var(--shadow)}
.card h3{font-size:20px;overflow-wrap:anywhere}
.card .description{color:var(--muted);font-size:13px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card .actions{margin-top:auto;padding-top:8px}
.card .actions button{font-size:12px;padding:8px 11px;min-height:40px}
.row{display:flex;gap:12px;align-items:center;justify-content:space-between;width:100%}
.badge{font-size:11px;letter-spacing:.25px;font-weight:800;background:var(--blue-soft);color:var(--blue-strong);border:1px solid var(--blue-border);border-radius:8px;padding:4px 10px;display:inline-block}
.badge[data-state=published],.badge[data-state=graded]{background:#e8f7ef;color:#087344;border-color:#a3d8bb}
.badge[data-state=active],.badge[data-state=submitted]{background:#fffbeb;color:#92400e;border-color:#f2d17d}
.meta{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:12px}
.meta span{background:var(--blue-soft);border:1px solid var(--border);padding:4px 9px;border-radius:8px}
.empty{border:1.5px dashed var(--blue-border);border-radius:20px;background:var(--surface);padding:40px 24px;text-align:center;color:var(--muted);width:100%;grid-column:1/-1}
.empty h3{color:var(--ink);margin-bottom:8px}
.pagination{display:flex;gap:16px;align-items:center;justify-content:center;margin-top:25px}
.pagination small{margin:0 4px}
.panel{background:var(--surface);border:1.5px solid var(--blue-border);border-radius:20px;padding:24px;margin-bottom:20px;box-shadow:var(--shadow)}
.panel>h3{margin-bottom:16px}
.grid-two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid-three{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
label{display:grid;gap:7px;font-size:13px;font-weight:650;min-width:0}
label small{font-weight:400}
input,textarea,select{border:1.5px solid var(--blue-border);color:var(--ink);background:var(--surface);padding:11px 12px;border-radius:10px;min-height:44px;width:100%;min-width:0;box-shadow:inset 0 2px 3px rgba(0,111,209,.025)}
input[type=checkbox],input[type=radio]{width:18px;height:18px;min-height:18px;accent-color:var(--blue);padding:0;flex:0 0 auto}
textarea{resize:vertical;line-height:1.65}
fieldset{border:0;padding:0;margin:0;min-width:0}
fieldset:disabled{opacity:.78}
.check{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:500}
.field-stack{display:grid;gap:18px}
.recipients{max-height:245px;overflow:auto;border:1px solid var(--blue-border);border-radius:12px;padding:12px;display:grid;gap:8px;background:var(--blue-soft)}
.recipients label{padding:5px 8px}
.question-editor{border:1.5px solid var(--blue-border);border-radius:18px;padding:22px;margin-top:20px;background:var(--surface);box-shadow:inset 4px 0 0 var(--blue),var(--shadow)}
.question-editor .row{margin-bottom:16px}
.question-editor .actions button{font-size:12px;min-height:36px;padding:5px 9px}
.option-editor{display:grid;grid-template-columns:22px minmax(0,1fr) 40px;gap:10px;align-items:center;margin-top:10px}
.option-editor button{padding:6px;min-height:40px}
.form-footer{position:sticky;bottom:0;z-index:5;background:var(--surface);border:1.5px solid var(--blue-border);border-radius:16px;padding:16px;display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:24px;box-shadow:inset 4px 0 0 var(--blue),0 -5px 20px rgba(0,111,209,.06)}
.hint{background:var(--blue-soft);color:#475569;border:1px solid var(--border);border-radius:12px;padding:12px 15px;font-size:13px;box-shadow:inset 3px 0 0 var(--blue-border)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.stat{background:var(--surface);border:1.5px solid var(--blue-border);border-radius:16px;padding:18px;box-shadow:inset 4px 0 0 var(--blue),var(--shadow)}
.stat strong{display:block;font-size:27px;color:var(--blue-strong)}
.stat span{color:var(--muted);font-size:12px}
.table-wrap{overflow:auto;background:var(--surface);border:1.5px solid var(--blue-border);border-radius:16px;box-shadow:var(--shadow)}
table{border-collapse:collapse;width:100%;font-size:13px;text-align:left}
th,td{padding:14px 18px;border-bottom:1px solid var(--border);white-space:nowrap}
th{font-size:11px;letter-spacing:.6px;text-transform:uppercase;background:var(--blue-soft);color:var(--blue-strong);font-weight:800}
td button{font-size:12px;padding:6px 12px;min-height:36px}
.exam-intro{max-width:850px}
.exam-intro h1{margin-top:20px}
.exam-intro .pre{margin:25px 0}
.exam-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0}
.exam-meta strong{display:block;font-size:20px}
.exam-meta small{display:block}
.timerbar{position:sticky;top:0;background:var(--surface);border:1.5px solid var(--blue);border-radius:16px;padding:14px 20px;display:flex;gap:15px;justify-content:space-between;align-items:center;z-index:10;margin-bottom:20px;box-shadow:inset 5px 0 0 var(--blue),var(--shadow)}
.timer{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;font-size:24px;letter-spacing:1px;font-variant-numeric:tabular-nums;font-weight:850;color:var(--blue-strong);border:1px solid var(--blue-border);border-radius:8px;background:var(--blue-soft);padding:2px 8px}
.timer.urgent{color:#b91c1c;border-color:#ef4444;background:#fff1f2}
.save-state{font-size:12px;color:var(--muted)}
.exam-workspace{display:grid;grid-template-columns:minmax(0,1fr) 235px;gap:20px;align-items:start}
.question-panel{min-height:340px}
.question-panel .prompt{font-size:18px;line-height:1.8;margin:22px 0 26px}
.answer-choice{display:flex;align-items:flex-start;gap:12px;padding:16px;border:1.5px solid var(--blue-border);border-radius:12px;margin:10px 0;cursor:pointer;font-weight:500;font-size:15px;background:var(--surface);box-shadow:inset 3px 0 0 var(--border)}
.answer-choice:has(input:checked){background:var(--blue-soft);border-color:var(--blue);box-shadow:inset 5px 0 0 var(--blue)}
.answer-choice input{margin-top:4px}
.question-nav{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin:16px 0}
.question-nav button{padding:6px;min-height:38px;border-radius:10px;font-size:12px;box-shadow:inset 0 -2px 0 var(--blue-border)}
.question-nav button.answered{background:#e8f7ef;border-color:#a3d8bb;color:#087344;box-shadow:inset 0 -3px 0 #15926d}
.question-nav button.flagged{box-shadow:inset 0 -4px #e8b43e}
.question-nav button.current{outline:2px solid var(--blue-strong);outline-offset:2px}
.question-sidebar{position:sticky;top:110px}
.question-sidebar p{font-size:12px;color:var(--muted)}
.question-footer{display:flex;justify-content:space-between;gap:10px;margin-top:24px}
.result-score{font-size:68px;line-height:1.15;font-weight:850;letter-spacing:-3px;color:var(--blue-strong);margin:24px 0 12px}
.result-box{max-width:760px;margin:20px auto;padding:40px}
.review-question{margin-bottom:22px}
.review-answer{background:var(--blue-soft);border:1px solid var(--border);border-radius:12px;padding:15px;margin:12px 0;font-size:14px;box-shadow:inset 3px 0 0 var(--blue-border)}
.review-question input[type=number]{max-width:200px}
.no-wrap{white-space:nowrap}
[hidden]{display:none!important}
.menu-close{display:none}

@media(max-width:1050px){.workspace{padding:24px}
.layout{grid-template-columns:234px minmax(0,1fr)}
.sidebar{padding:22px 14px}
.exam-workspace{grid-template-columns:minmax(0,1fr)}
.question-sidebar{position:static}
.question-nav{grid-template-columns:repeat(auto-fill,minmax(34px,1fr))}
.stats{grid-template-columns:1fr 1fr}
.grid-three{grid-template-columns:1fr 1fr}
}

@media(max-width:720px){h1{font-size:26px}
.layout{display:block}
.sidebar{position:fixed;left:0;top:0;z-index:50;width:min(300px,100vw);transform:translateX(-100%);box-shadow:10px 0 32px rgba(15,23,42,.14)}
.layout.menu-open .sidebar{transform:translateX(0)}
.sidebar-brand{padding-top:38px}
.sidebar-brand .menu-close{display:inline-flex;position:absolute;right:0;top:-12px;min-width:40px;min-height:40px;padding:4px}
.mobile-toggle{display:inline-flex;min-height:38px;padding:5px 12px}
.topbar{padding:12px 16px}
.workspace{padding:20px 14px 50px}
.grid-two,.grid-three,.login-options{grid-template-columns:1fr}
.welcome{padding:24px;margin:3vh auto}
.welcome .brand{margin-bottom:40px}
.login-card{padding:22px}
.panel{padding:18px}
.question-editor{padding:16px}
.exam-meta{grid-template-columns:1fr 1fr}
.timerbar{padding:12px;top:0}
.timer{font-size:21px}
.timerbar>div:first-child{max-width:60%}
.question-panel .prompt{font-size:16px}
.form-footer{flex-wrap:wrap}
.form-footer .actions{width:100%;justify-content:flex-end}
.result-box{padding:26px}
.question-footer{flex-wrap:wrap}
.page-heading .actions{width:100%}
.card{padding:20px}
.stats{gap:10px}
.stat{padding:14px}
}

@media(prefers-reduced-motion:no-preference){.sidebar{transition:transform .18s ease}
button,.button{transition:background .12s,border-color .12s}
}

/* Structured question media: one editor and renderer shared by teacher and student. */
.question-media{display:grid;gap:16px;min-width:0;margin:16px 0}
.question-media:empty{display:none}
.media-block{margin:0;min-width:0;max-width:100%;overflow-wrap:anywhere}
.media-block figcaption{font-size:13px;color:var(--muted);padding:9px 0;white-space:pre-wrap}
.media-credit{display:block;font-size:11px;margin-top:4px}
.media-image{min-width:0;background:var(--blue-soft);border:1px solid var(--blue-border);border-radius:12px;overflow:hidden}
.media-image img{display:block;max-width:100%;width:auto;height:auto;max-height:540px;margin:auto;object-fit:contain}
.image-fallback{display:none;font-size:13px;padding:18px}
.image-failed .image-fallback{display:block}
.image-failed img{display:none}
.media-table-wrap{max-width:100%;overflow-x:auto;border:1.5px solid var(--blue-border);border-radius:12px;background:var(--surface)}
.media-table{font-size:14px}
.media-table caption{padding:12px;text-align:left;font-weight:650;white-space:pre-wrap;color:var(--ink)}
.media-table td,.media-table th{white-space:pre-wrap;overflow-wrap:anywhere;min-width:95px;max-width:300px;padding:12px;text-transform:none;letter-spacing:normal;font-size:inherit}
.question-chart{display:block;width:100%;height:auto;max-width:760px;margin:auto}
.chart-heading{font-size:16px;font-weight:700;color:#18324b;text-align:center;overflow-wrap:anywhere;margin:8px 0}
.chart-tick{font-size:11px;fill:#435a72}
.chart-label{font-size:12px;font-weight:600;fill:#18324b}
.chart-grid{stroke:#e1e8f0;stroke-width:1}
.chart-axis{stroke:#62738a;stroke-width:1.5}
.chart-data{font-size:12px;color:var(--muted);margin-top:10px}
.chart-data summary{cursor:pointer;padding:8px 0}
.media-editor{border:1.5px dashed var(--blue-border);border-radius:12px;padding:16px;min-width:0;background:var(--blue-soft)}
.media-editor-item{padding:12px;margin-top:12px;border:1px solid var(--blue-border);border-radius:12px;background:var(--surface)}
.media-editor-item .question-chart{max-width:500px}
.media-editor-item .media-image img{max-height:300px}
.media-dialog{width:min(960px,calc(100vw - 28px));max-width:calc(100vw - 28px);max-height:calc(100dvh - 28px);border:1.5px solid var(--blue-border);border-radius:20px;background:var(--surface);color:var(--ink);padding:24px;overflow-y:auto;overscroll-behavior:contain;box-shadow:inset 5px 0 0 var(--blue),0 20px 56px rgba(15,23,42,.16)}
.media-dialog::backdrop{background:rgba(15,23,42,.34)}
.media-dialog h2{font-size:22px}
.media-dialog .row{margin-bottom:18px;align-items:flex-start}
.media-dialog .field-stack>hr{width:100%;border:0;border-top:1px solid var(--border)}
.media-footer{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap;position:sticky;bottom:-24px;margin-top:20px;padding:16px 0;background:var(--surface);border-top:2px solid var(--border);z-index:1}
.media-search{display:flex;gap:10px;align-items:flex-end}
.media-search label{flex:1}
.media-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.media-search-card{border:1.5px solid var(--blue-border);border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:8px;font-size:12px;min-width:0;overflow-wrap:anywhere;background:var(--surface);box-shadow:var(--shadow)}
.media-search-card .media-image img{width:100%;height:140px;object-fit:contain}
.media-search-card strong{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:12px}
.media-search-card small{font-size:10px;max-height:64px;overflow:auto}
.media-search-card button{margin-top:auto}
.chart-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-height:380px;overflow:auto}
.chart-template{padding:12px;border:1.5px solid var(--blue-border);border-radius:12px;min-width:0;display:flex;flex-direction:column;gap:8px;background:var(--surface);box-shadow:inset 3px 0 0 var(--blue),var(--shadow)}
.chart-template strong{font-size:13px}
.chart-template button{font-size:12px;margin-top:auto}
.media-preview:empty{display:none}
.media-preview{border-top:1px solid var(--border);margin-top:20px;padding-top:8px}
.table-editor td{padding:6px;min-width:150px}
.table-editor tr:first-child input{font-weight:800;background:var(--blue-soft)}
.table-editor input{font-size:13px}

@media(max-width:720px){.media-results,.chart-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}
.media-dialog{padding:16px;border-radius:14px}
.media-footer{bottom:-16px}
.media-search{align-items:stretch;flex-direction:column}
.media-editor{padding:12px}
.media-editor>.row{flex-wrap:wrap}
.media-search-card{padding:8px}
.media-search-card .media-image img{height:110px}
.chart-template{padding:8px}
.media-block .question-chart{min-width:480px}
.media-block:has(>.question-chart){overflow-x:auto}
.media-footer button{flex:1}
.sidebar-bottom{padding-bottom:env(safe-area-inset-bottom)}
}

@media(max-width:380px){.media-results,.chart-gallery{grid-template-columns:1fr}
.topbar>small{display:none}
}