*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#0e5249;
  --primary-d:#0a3d3a;
  --accent:#12655a;
  --secondary:#2e9e5b;
  --bg:#f5f5f7;
  --card:#fff;
  --text:#1d1d1f;
  --muted:#86868b;
  --green:#2e9e5b;
  --red:#d8453b;
  --orange:#d98a0b;
  --gold:#b78b20;
  --border:#e8e8ed;
  --soft-border:#f0f0f3;
  --surface:#f5f5f7;
  --surface-high:#e8e8ed;
  --mint:#5fe0c0;
  --radius:16px;
  --shadow:0 1px 3px rgba(0,0,0,.04),0 14px 38px rgba(29,29,31,.05);
}

html{overflow-x:hidden}
body{position:relative;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","Helvetica Neue",Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;font-size:15px;line-height:1.5;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;z-index:-2;background:radial-gradient(120% 120% at 50% 0%,#fff 0%,#f5f5f7 58%,#f0f2f1 100%)}
body::after{content:none}
::selection{background:var(--primary-d);color:#fff}
img,svg,canvas,video{max-width:100%;height:auto}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--text);font-weight:650;letter-spacing:-.01em}
h2{font-size:26px;line-height:1.2}
h3{font-size:18px;line-height:1.3}
h4{font-size:16px;line-height:1.35}
p{line-height:1.55}

.container{width:min(100%,1160px);margin:0 auto;padding:30px 24px 60px}
.admin-shell .container{width:auto;max-width:none;margin-left:240px;padding:38px 44px 72px}
.container-narrow{max-width:440px;margin:0 auto;padding:56px 20px}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:11px 18px;background:var(--primary);color:#fff;border:1px solid var(--primary);border-radius:999px;font-size:14px;font-weight:650;cursor:pointer;transition:background .15s,border-color .15s,box-shadow .15s,transform .15s;white-space:nowrap;box-shadow:0 10px 30px rgba(10,49,44,.2)}
.btn:hover{background:var(--primary-d);border-color:var(--primary-d);text-decoration:none;color:#fff}
.btn:active{transform:scale(.98)}
.btn:focus-visible{outline:0;box-shadow:0 0 0 4px rgba(14,82,73,.18)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-sm{min-height:30px;padding:6px 10px;font-size:13px}
.btn-danger{background:var(--red);border-color:var(--red)}
.btn-danger:hover{background:#8f1b25;border-color:#8f1b25}
.btn-success{background:var(--green);border-color:var(--green)}
.btn-success:hover{background:#205d3b;border-color:#205d3b}
.btn-outline{background:#fff;color:var(--primary);border-color:#d2d2d7;box-shadow:none}
.btn-outline:hover{background:#fff;color:var(--primary);border-color:rgba(14,82,73,.35)}
.btn-launch{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-launch:hover{background:var(--primary-d);border-color:var(--primary-d);color:#fff}
.inline-form{display:inline-flex;align-items:center;gap:8px;margin:0;vertical-align:middle}

.field{margin-bottom:18px}
.field label{display:block;font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;font-weight:600;color:var(--muted);margin-bottom:8px;letter-spacing:.14em;text-transform:uppercase}
.field input,.field textarea,.field select{width:100%;min-width:0;padding:13px 14px;border:1.5px solid #d2d2d7;border-radius:14px;background:#fff;color:var(--text);font-size:15px;font-family:inherit;outline:none;transition:border-color .15s,box-shadow .15s,background .15s}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(14,82,73,.14);background:#fff}
.field textarea{resize:vertical;min-height:96px}
.field-compact{margin:0}
.field-sm{min-width:120px}
.field-md{min-width:160px}
.field-lg{min-width:260px;flex:1}
.field-grow{flex:1 1 280px}

.form-row{display:flex;gap:14px;flex-wrap:wrap;align-items:flex-end}
.form-row .field{margin:0;min-width:0;flex:1 1 150px}
.form-row .btn{flex:0 0 auto}
.form-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;margin-top:16px}
.form-actions .btn{min-width:170px}
.section-note{font-size:14px;color:var(--muted)}
.panel-title{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--soft-border)}
.panel-title p{margin-top:4px}

.manual-builder{border-color:#dfe7e4;background:#fff}
.builder-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}
.builder-main{display:grid;gap:16px}
.step-card{border:1px solid var(--soft-border);border-radius:16px;background:#fbfbfd;padding:18px}
.step-head{display:flex;gap:12px;align-items:flex-start;margin-bottom:16px}
.step-number{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;font-weight:700;font-size:14px;flex:0 0 auto}
.option-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.option-grid .field{margin:0}
.question-actions{grid-template-columns:1fr}
.question-composer{background:#fff;border-color:#dce7e2}
.question-composer .panel-body{padding:18px}
.composer-head{margin-bottom:14px}
.composer-head h4{font-size:17px}
.builder-preview{position:sticky;top:82px;border:1px solid var(--border);border-radius:18px;background:#fff;padding:20px;box-shadow:var(--shadow)}
.preview-label{display:block;margin-bottom:10px;color:var(--muted);font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.preview-meta{display:flex;gap:6px;flex-wrap:wrap;margin:12px 0 16px}
.preview-meta span{background:var(--surface);color:#6e6e73;border:1px solid var(--soft-border);border-radius:8px;padding:5px 9px;font-size:12px;font-weight:650}
.preview-question{border-top:1px solid var(--soft-border);padding-top:14px;margin-bottom:18px}
.preview-question p{margin-top:6px;color:var(--muted)}
.launch-panel{display:flex;align-items:center;justify-content:space-between;gap:18px;background:linear-gradient(135deg,#fff 0,#f8fbff 58%,#eef5fb 100%);border:1px solid #c9d6dc;border-radius:18px;padding:24px 26px;box-shadow:0 1px 2px rgba(15,23,42,.04),0 18px 42px rgba(15,23,42,.1)}
.launch-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.live-pill{display:inline-flex;align-items:center;gap:7px;background:#e9f4f1;border:1px solid #d7ece6;border-radius:999px;padding:6px 10px;color:var(--primary);font-size:13px}
.live-dot{width:8px;height:8px;border-radius:50%;background:#30d158;box-shadow:0 0 0 3px rgba(48,209,88,.15)}
.live-dot-muted{background:#b8c2cc;box-shadow:none}
.access-panel{border-color:#cad7e2}
.metric-strip{display:flex;gap:10px;flex-wrap:wrap}
.metric-strip span{background:var(--surface);border:1px solid var(--soft-border);border-radius:999px;padding:7px 11px;color:#6e6e73;font-size:13px}
.credential-sheet{border:1px solid var(--soft-border);border-radius:16px;background:#fbfbfd;padding:16px}
.key-code-large{font-size:16px;font-weight:700;letter-spacing:.08em;color:var(--primary-d);background:#e9f4f1;border-color:#cce5dd}
.status-line{display:inline-flex;align-items:center;gap:8px}
.empty-state{display:flex;flex-direction:column;gap:4px;border:1px dashed #cfd9d6;border-radius:16px;background:#fbfbfd;padding:18px;color:var(--muted)}
[hidden]{display:none!important}
.page-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:22px;padding:6px 2px 2px}
.page-hero h2{font-family:'Instrument Serif',Georgia,serif;font-size:46px;margin-bottom:6px;font-weight:400;letter-spacing:-.01em}
.evaluation-command{position:relative;overflow:hidden;background:linear-gradient(120deg,#0e5249,#0a3d3a);color:#fff;border:0;border-radius:18px;padding:24px 26px;box-shadow:0 10px 30px rgba(10,49,44,.25)}
.evaluation-command::before{content:none}
.evaluation-command h2,.evaluation-command p{color:#fff}
.evaluation-command .preview-label{color:#9fd6cb}
.command-main{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}
.command-main p{max-width:760px;margin-top:8px;color:#c7e4dd}
.command-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.command-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:24px}
.command-metrics div{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:14px}
.command-metrics span{display:block;color:#9fd6cb;font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.1em}
.command-metrics strong{display:block;margin-top:5px;color:#fff;font-size:27px;line-height:1;font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.workflow-steps{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.workflow-steps span{border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:8px 12px;color:#c7e4dd;background:rgba(255,255,255,.08);font-size:13px;font-weight:650}
.workflow-steps span.done{background:#5fe0c0;color:#08312c;border-color:#5fe0c0}
.live-alerts-panel{border-color:#f0d1ce;background:#fff}
.side-card.live-alerts-panel{border-left:4px solid var(--red)}
.live-alerts-panel .section-heading{align-items:center}
.live-alert-list{display:grid;gap:10px}
.live-alert-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:center;border:1px solid #f0d1ce;border-radius:14px;background:#fffafa;padding:12px 14px}
.live-alert-critical{border-color:#d8453b;background:#fff4f2;box-shadow:inset 4px 0 0 #d8453b}
.live-alert-item strong{display:block;color:#8f1b25;font-size:14px}
.live-alert-item span{display:block;margin-top:2px;color:#6e6e73;font-size:13px;overflow-wrap:anywhere}
.live-alert-time{color:#86868b;font-size:12px;white-space:nowrap}
.live-toast{position:fixed;right:24px;bottom:24px;z-index:80;max-width:min(360px,calc(100vw - 32px));padding:14px 16px;border-radius:16px;background:#d8453b;color:#fff;box-shadow:0 18px 48px rgba(143,27,37,.28);font-weight:750}
.evaluation-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:22px;align-items:start}
.evaluation-main{display:grid;gap:22px}
.question-panel{order:1}
.access-panel{order:2}
.evaluation-side{position:sticky;top:90px;display:grid;gap:16px}
.workspace-card,.side-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.side-card{padding:18px}
.evaluation-main,.evaluation-side,.workspace-card,.side-card,.surface-panel,.step-card,.builder-main,.builder-preview,.creation-grid,.builder-layout{min-width:0}
.section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--soft-border)}
.section-heading.compact{margin-bottom:14px}
.section-kicker{display:block;margin-bottom:7px;color:var(--primary);font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.14em}
.action-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.surface-panel{border:1px solid var(--soft-border);border-radius:16px;background:#fbfbfd;overflow:hidden}
.surface-panel>summary,.side-card>summary{list-style:none;cursor:pointer;font-weight:700;padding:15px 16px}
.surface-panel>summary::-webkit-details-marker,.side-card>summary::-webkit-details-marker{display:none}
.surface-panel[open]>summary,.side-card[open]>summary{border-bottom:1px solid var(--soft-border);background:rgba(243,243,245,.78)}
.panel-body{padding:16px}
.question-list{display:grid;gap:10px}
.table-wrap{max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--soft-border);border-radius:14px}
.table-wrap table{width:max-content;min-width:620px}
.exam-list{display:grid;gap:8px;margin-top:12px}
.exam-list-item{display:block;border:1px solid var(--soft-border);border-radius:14px;padding:12px 13px;color:var(--text);background:#fff}
.exam-list-item:hover{text-decoration:none;background:#f8fbff;border-color:#c9d9e8}
.exam-list-item.active{background:#e9f4f1;border-color:#cce5dd}
.exam-list-item strong{display:block;font-size:14px;margin-bottom:3px}
.exam-list-item span{display:block;color:var(--muted);font-size:12px}
.exam-switcher{padding:18px;margin-bottom:22px}
.exam-switcher .section-heading{margin-bottom:14px;padding-bottom:12px}
.exam-switcher-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:10px}
.exam-switcher-item{display:block;min-height:74px;border:1px solid var(--soft-border);border-radius:14px;padding:13px 14px;color:var(--text);background:#fbfbfd;transition:border-color .15s,background .15s,transform .15s}
.exam-switcher-item:hover{text-decoration:none;background:#fff;border-color:#cce5dd;transform:translateY(-1px)}
.exam-switcher-item.active{background:#e9f4f1;border-color:#b9ded4;box-shadow:inset 0 0 0 1px #b9ded4}
.exam-switcher-item strong{display:block;font-size:15px;margin-bottom:6px;line-height:1.25}
.exam-switcher-item span{display:block;color:var(--muted);font-size:12px}
.evaluation-tabs{position:sticky;top:14px;z-index:12;display:flex;gap:8px;align-items:center;width:max-content;max-width:100%;overflow-x:auto;padding:7px;border:1px solid var(--border);border-radius:999px;background:rgba(255,255,255,.86);box-shadow:0 8px 24px rgba(29,29,31,.06);backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px)}
.evaluation-tabs a{flex:0 0 auto;padding:8px 13px;border-radius:999px;color:#414755;font-size:13px;font-weight:650}
.evaluation-tabs a:hover{background:#eef0f0;color:var(--primary-d);text-decoration:none}
.source-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.source-card{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;background:#fbfbfd;border:1px solid var(--soft-border);border-left:4px solid var(--primary);border-radius:16px;padding:15px 16px}
.source-card strong,.source-card span,.source-card em{display:block}
.source-card strong{font-size:15px;margin-bottom:3px}
.source-card span{font-size:13px;color:var(--muted)}
.source-card em{margin-top:6px;font-size:12px;color:var(--primary);font-style:normal}
.source-card-error{border-left-color:var(--red);background:#fffafa}
.source-card-error em{color:var(--red)}
.results-hero{align-items:center}
.result-exam-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.result-exam-card{display:flex;flex-direction:column;gap:16px;min-height:172px;padding:20px;border:1px solid var(--border);border-radius:18px;background:#fff;color:var(--text);box-shadow:var(--shadow)}
.result-exam-card:hover{text-decoration:none;border-color:#cce5dd;background:#fbfefd}
.result-exam-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.result-exam-head strong{font-size:18px;line-height:1.25}
.result-exam-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:auto}
.result-exam-metrics span{display:block;border:1px solid var(--soft-border);border-radius:12px;background:#fbfbfd;padding:10px;color:#6e6e73;font-size:13px}
.result-exam-metrics strong{display:block;color:var(--text);font-size:22px;line-height:1}
.result-correction-card h3{font-size:17px;font-weight:600;line-height:1.4}
.result-answer,.result-message{border:1px solid var(--soft-border);border-radius:14px;background:#fbfbfd;padding:14px;margin-bottom:14px}
.result-answer strong,.result-message strong{display:block;margin-bottom:6px}
.result-answer p,.result-message p{color:#34363b}
.result-answer span{display:block;margin-top:8px;color:var(--muted);font-size:13px}
.result-ai-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin-bottom:14px}
.result-ai-grid span{display:block;border:1px solid var(--soft-border);border-radius:12px;background:#fff;padding:10px;color:#6e6e73;font-size:13px}
.result-ai-grid strong{display:block;color:var(--primary-d);font-size:12px;text-transform:uppercase;letter-spacing:.05em}
.result-alerts{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.result-score-form{align-items:flex-end;margin-top:4px}
.compact-help{position:static;height:100%;box-shadow:none}
.compact-help p{margin-top:8px}
.creation-section{margin-top:28px}
.creation-section-top{margin:0 0 18px}
.create-drawer{padding:0;overflow:hidden}
.create-drawer>summary{display:flex!important;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px!important}
.create-drawer>summary::after{display:none}
.create-drawer[open]>summary{border-bottom:1px solid var(--soft-border)}
.create-exam-panel{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;padding:0;overflow:hidden}
.create-mode{padding:22px}
.create-mode+.create-mode{border-top:0;border-left:1px solid var(--soft-border)}
.create-mode-head{display:flex;align-items:baseline;gap:14px;margin-bottom:16px}
.create-mode-head .section-kicker{margin:0;min-width:64px}
.create-mode-head h3{font-size:19px}
.create-form .form-row{align-items:flex-end}
.create-form .form-actions{justify-content:flex-start;margin-top:12px}
.create-form textarea{min-height:104px}
.create-mode-manual{background:#fbfbfd}
.danger-zone{border-color:rgba(186,26,26,.18);background:rgba(255,218,214,.22)}

table{width:100%;border-collapse:separate;border-spacing:0;background:rgba(255,255,255,.72)}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--soft-border);font-size:14px;vertical-align:middle}
th{background:var(--surface);color:var(--muted);font-size:12px;font-weight:800;letter-spacing:.03em;text-transform:uppercase}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:#fbfcfd}

.badge{display:inline-block;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:800}
.badge-green{background:#e9f7ef;color:#2e9e5b}
.badge-red{background:#fcecea;color:var(--red)}
.badge-orange{background:#fdf2e0;color:var(--orange)}
.badge-blue{background:#e9f4f1;color:var(--primary-d)}

.flash{padding:12px 15px;border-radius:14px;margin-bottom:20px;font-size:14px;border:1px solid transparent}
.flash-success{background:#e9f7ef;color:#205d3b;border-color:#c7e2d1}
.flash-error{background:#fcecea;color:#8f1b25;border-color:#efc0c5}

.nav{position:fixed;top:0;left:0;z-index:30;display:flex;flex-direction:column;align-items:stretch;gap:4px;width:240px;height:100vh;padding:26px 16px;background:#fbfbfd;border-right:1px solid var(--border);box-shadow:none}
.nav-brand{order:0;display:flex;align-items:center;gap:11px;font-weight:750;font-size:16px;line-height:1.15;color:var(--text);margin:0 0 22px;padding:0 8px;text-transform:none}
.brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(160deg,#15514a,#0a312c);color:#5fe0c0;box-shadow:0 10px 26px rgba(10,49,44,.18);flex:0 0 auto}
.brand-mark svg path{stroke-dasharray:92;stroke-dashoffset:184;animation:heartTrace 1.55s ease-in-out infinite}
@keyframes heartTrace{0%{stroke-dashoffset:184;opacity:.45}34%{stroke-dashoffset:92;opacity:1}44%{transform:scaleY(1.18);transform-origin:center}62%,100%{stroke-dashoffset:0;opacity:.78;transform:scaleY(1)}}
.nav-profile{order:11;display:flex;align-items:center;gap:10px;margin:12px 0 0;padding:12px 8px;border-top:1px solid var(--border);color:var(--text)}
.nav-profile strong,.nav-profile small{display:block}
.nav-profile small{color:var(--muted);font-size:12px}
.nav-avatar{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;font-weight:650}
.nav a{order:1;font-size:14px;color:#242a35;padding:10px 12px;border-radius:10px;font-weight:550}
.nav a:hover,.nav a.active{color:var(--primary-d);background:#eef0f0;text-decoration:none}
.nav a.active{box-shadow:inset 3px 0 0 var(--primary)}
.nav-cta{order:10;margin-top:auto!important;background:var(--primary)!important;color:#fff!important;text-align:center;box-shadow:0 12px 26px rgba(10,49,44,.22)}
.nav-right{order:12;margin-top:0;color:#414755!important}

.auth-shell .container-narrow{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 28px}
.auth-card{width:100%;background:transparent;text-align:center}
.auth-brand{display:flex;flex-direction:column;align-items:center;gap:10px;margin-bottom:10px;color:var(--primary);font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase}
.auth-mark{width:72px;height:72px;border-radius:20px;margin-bottom:2px}
.auth-card h2{font-family:'Instrument Serif',Georgia,serif;font-size:56px;font-weight:400;line-height:.98;letter-spacing:-.01em;margin-bottom:16px}
.auth-card form{background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow);padding:22px;margin-top:28px;text-align:left}
.access-key-input{font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace!important;font-size:28px!important;font-weight:600;text-align:center;letter-spacing:.18em;text-transform:uppercase}

.text-center{text-align:center}
.text-muted{color:var(--muted)}
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}
.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}
.flex{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.flex-between{display:flex;justify-content:space-between;align-items:center;gap:16px}

details.card{padding:0;overflow:hidden}
details.card>summary{list-style:none;cursor:pointer;font-weight:650;padding:18px 24px;background:#fff;border-radius:var(--radius)}
details.card>summary::-webkit-details-marker{display:none}
details.card>summary::after{content:"+";float:right;color:var(--muted);font-size:18px;line-height:1}
details.card[open]>summary{background:#f8fafb;border-bottom:1px solid var(--soft-border)}
details.card[open]>summary::after{content:"-"}
details.workspace-card{padding:0;overflow:hidden}
details.workspace-card>summary{list-style:none;cursor:pointer;font-weight:650;padding:18px 22px;background:#fff;border-radius:18px}
details.workspace-card>summary::-webkit-details-marker{display:none}
details.workspace-card>summary::after{content:"+";float:right;color:var(--muted);font-size:22px;line-height:1}
details.workspace-card[open]>summary{border-bottom:1px solid var(--soft-border);border-radius:18px 18px 0 0}
details.workspace-card[open]>summary::after{content:"-"}
details.workspace-card.create-drawer>summary{display:flex;align-items:center;justify-content:space-between;gap:16px}
details.workspace-card.create-drawer>summary::after{display:none;content:""}
.details-body{padding:22px 24px 24px}
.question-item{border:1px solid var(--soft-border);border-radius:18px;background:rgba(255,255,255,.5);padding:14px;margin-top:0}
.question-item summary{cursor:pointer;list-style:none;padding:7px 0}
.question-item summary::-webkit-details-marker{display:none}
.test-options{display:none;margin-top:16px;border-top:1px solid var(--soft-border);padding-top:16px}
.key-code{display:inline-block;font-size:13px;background:var(--surface);padding:4px 8px;border:1px solid var(--soft-border);border-radius:8px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.access-url{display:inline-block;max-width:100%;overflow-wrap:anywhere;font-size:13px;background:#f7fafc;padding:10px 12px;border:1px solid var(--soft-border);border-radius:8px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--primary-d)}

.student-shell::before{background:#fff}
.student-shell .container{max-width:900px;padding:104px 48px 140px}
.exam-toolbar{position:fixed;top:0;left:0;right:0;z-index:40;display:grid;grid-template-columns:1fr auto;align-items:center;gap:16px;background:rgba(255,255,255,.82);border:0;border-bottom:1px solid var(--border);border-radius:0;padding:14px 48px;margin-bottom:20px;box-shadow:none;min-width:0;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px)}
.exam-toolbar strong{font-size:24px}
.exam-secure{display:inline-flex;align-items:center;gap:8px;margin-left:18px;color:var(--red);font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;background:#fcecea;padding:4px 9px;border-radius:7px}
.exam-secure::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--red)}
.countdown{font-size:24px;font-weight:600;color:var(--text);font-variant-numeric:tabular-nums;font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--surface);border:1px solid #e3e3e8;border-radius:10px;padding:5px 16px}
.exam-progress-strip{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;margin-bottom:28px}
.exam-progress-strip h2{font-family:'Instrument Serif',Georgia,serif;font-size:44px;font-weight:400;margin:0 0 6px;line-height:1}
.progress-ticks{display:flex;gap:5px;width:100%}
.progress-ticks span{height:6px;flex:1;border-radius:999px;background:#e8e8ed}
.progress-ticks span.active{background:var(--primary)}
.fullscreen-overlay{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;background:rgba(20,20,22,.55);backdrop-filter:blur(24px);padding:20px}
.security-notice{position:fixed;left:50%;bottom:24px;z-index:60;display:flex;align-items:flex-start;gap:12px;width:min(620px,calc(100vw - 32px));padding:14px 16px;border:1px solid #efc0c5;border-radius:16px;background:#fff4f2;color:#8f1b25;box-shadow:0 18px 48px rgba(143,27,37,.16);transform:translateX(-50%)}
.security-notice strong{white-space:nowrap}
.security-notice span{color:#5c2224}
.exam-area textarea{min-height:180px}
.question-block{padding:34px;border-radius:18px;box-shadow:none}
.question-block h3{font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;color:var(--primary);text-transform:uppercase;letter-spacing:.18em}
.question-block p{line-height:1.55;font-size:22px;letter-spacing:-.01em}
.test-option{display:flex!important;align-items:flex-start;gap:16px;width:100%;padding:18px 20px!important;margin-bottom:12px;border:1px solid #e3e3e8;border-radius:16px;background:#fff;font-size:17px;font-weight:400!important;text-transform:none!important;letter-spacing:0!important;cursor:pointer;transition:border-color .15s,background .15s,transform .15s,box-shadow .15s}
.test-option:hover{border-color:var(--primary);background:#fff;transform:translateY(-1px)}
.test-option input{margin-top:5px;accent-color:var(--primary)}
.test-option .option-letter{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;flex:0 0 auto;border:1.5px solid #d2d2d7;border-radius:50%;font-weight:650;color:var(--muted)}
.waiting-shell{min-height:calc(100vh - 140px);display:flex;align-items:center;justify-content:center}
.waiting-card{max-width:580px;width:100%;padding:44px;text-align:center}
.waiting-card h2{font-family:'Instrument Serif',Georgia,serif;font-size:44px;font-weight:400}
.waiting-pulse{width:46px;height:46px;border-radius:50%;margin:10px auto 0;background:var(--primary);box-shadow:0 0 0 0 rgba(14,82,73,.28);animation:pulseWait 1.6s infinite}
@keyframes pulseWait{70%{box-shadow:0 0 0 18px rgba(14,82,73,0)}100%{box-shadow:0 0 0 0 rgba(14,82,73,0)}}

@media (max-width:1366px){
  .admin-shell .container{margin-left:236px;padding:32px 32px 60px}
  .nav{width:236px;padding:24px 20px}
  .nav-brand{font-size:16px;margin-bottom:18px}
  .nav-profile{margin-bottom:16px}
  .nav a{font-size:14px;padding:11px 12px}
  .page-hero h2{font-size:38px}
  .evaluation-layout{grid-template-columns:minmax(0,1fr) 300px;gap:18px}
  .workspace-card,.side-card{border-radius:20px}
  .evaluation-command{padding:22px}
  .command-metrics strong{font-size:24px}
  .student-shell .container{max-width:1280px;padding:92px 32px 120px}
  .exam-toolbar{padding:14px 32px}
  .question-block{padding:30px}
  .question-block p{font-size:18px}
}

@media (max-width:1180px){
  .admin-shell .container{padding:28px 26px 56px}
  .evaluation-layout{grid-template-columns:1fr}
  .evaluation-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
  .create-mode{padding:18px}
}

@media (max-width:1120px){
  .evaluation-layout{grid-template-columns:1fr}
  .evaluation-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:980px){
  .admin-shell .container{margin-left:0;padding:22px 22px 56px}
  .nav{position:sticky;top:0;width:auto;height:auto;min-height:62px;flex-direction:row;align-items:center;gap:6px;padding:10px 16px;margin:0;background:rgba(255,255,255,.82);border-right:0;border-bottom:.5px solid var(--border);overflow-x:auto}
  .nav-brand{flex:0 0 auto;font-size:16px;margin:0 12px 0 0;white-space:nowrap}
  .nav-profile{display:none}
  .nav a{flex:0 0 auto;font-size:14px;padding:9px 11px}
  .nav a.active{box-shadow:none;background:#e9f4f1}
  .nav-cta{margin-top:0!important}
  .nav-right{margin-top:0!important;margin-left:auto}
  .page-hero h2{font-size:32px}
  .student-shell .container{padding:88px 24px 110px}
  .exam-toolbar{padding:12px 24px}
  .exam-secure{display:none}
}

@media (max-width:920px){
  .container{padding:26px 18px 52px}
  .page-hero h2{font-size:30px}
  .command-main{align-items:flex-start;flex-direction:column}
  .command-actions{width:100%;justify-content:flex-start}
  .command-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .action-grid{grid-template-columns:1fr}
  .question-actions{grid-template-columns:1fr}
  .source-grid{grid-template-columns:1fr}
  .create-exam-panel{grid-template-columns:1fr}
  .create-mode+.create-mode{border-left:0;border-top:1px solid var(--soft-border)}
  .result-ai-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .evaluation-side{grid-template-columns:1fr}
  .builder-layout{grid-template-columns:1fr}
  .builder-preview{position:static}
  .live-alert-item{grid-template-columns:1fr}
  .live-toast{right:16px;bottom:16px}
}

@media (max-width:720px){
  body{font-size:14px}
  .container{padding:20px 14px 44px}
  .container-narrow{padding:32px 14px}
  .nav{overflow-x:auto;padding:0 12px;height:54px;gap:2px;-webkit-overflow-scrolling:touch}
  .nav-brand{white-space:nowrap}
  .nav a{flex:0 0 auto;padding:8px 10px}
  .nav-right{margin-left:0}
  .flex-between,.panel-title{align-items:flex-start;flex-direction:column}
  .page-hero,.command-main,.section-heading{align-items:flex-start;flex-direction:column}
  .command-metrics,.evaluation-layout,.action-grid{grid-template-columns:1fr}
  .result-exam-grid,.result-ai-grid{grid-template-columns:1fr}
  .result-exam-card{min-height:0}
  .create-mode-head{align-items:flex-start;flex-direction:column;gap:4px}
  .evaluation-side{position:static}
  .evaluation-command{border-radius:18px;padding:20px}
  .launch-panel{align-items:flex-start;flex-direction:column}
  .launch-actions{width:100%;justify-content:flex-start}
  .builder-layout{grid-template-columns:1fr}
  .builder-preview{position:static}
  .option-grid{grid-template-columns:1fr}
  .form-row{display:grid;grid-template-columns:1fr;gap:12px}
  .form-row .field{margin-bottom:14px}
  .form-row .btn{margin-top:2px}
  .btn{width:100%}
  .inline-form{width:100%;display:flex}
  .form-actions{justify-content:stretch}
  .form-actions .btn{width:100%;min-width:0}
  .workspace-card,.side-card,.card{padding:18px;border-radius:14px}
  .surface-panel>summary,.side-card>summary{padding:14px}
  .panel-body{padding:14px}
  table{display:block;overflow-x:auto;white-space:nowrap}
  .exam-toolbar{top:58px;align-items:flex-start;flex-direction:column;padding:14px}
  .countdown{font-size:26px}
  .fullscreen-overlay .card{width:100%;max-width:420px}
  .security-notice{align-items:flex-start;flex-direction:column;gap:4px;bottom:14px}
  .waiting-card{padding:26px 20px}
}

@media (max-width:460px){
  .container{padding:16px 10px 36px}
  .page-hero h2{font-size:27px}
  .page-hero{gap:12px;margin-bottom:16px}
  .evaluation-command{padding:16px;border-radius:16px}
  .evaluation-command h2{font-size:24px}
  .command-metrics{gap:8px}
  .command-metrics div{padding:12px}
  .command-metrics strong{font-size:21px}
  .workflow-steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .workflow-steps span{text-align:center;padding:8px 6px}
  .workspace-card,.side-card,.card{padding:16px;border-radius:12px}
  .step-card{padding:14px}
  .field{margin-bottom:14px}
  .field input,.field textarea,.field select{font-size:16px}
  .section-heading{gap:10px;margin-bottom:14px;padding-bottom:12px}
  .metric-strip{width:100%}
  .metric-strip span{flex:1 1 130px;text-align:center}
  .table-wrap table{min-width:540px}
  .exam-toolbar strong,.exam-toolbar span{display:block}
}