:root{color-scheme:dark;font-family:Segoe UI,Arial,sans-serif;background:#0c1219;color:#dce7eb}*{box-sizing:border-box}body{margin:0}header{display:flex;align-items:center;gap:22px;padding:22px 5%;border-bottom:1px solid #253440;background:#111b24}.brand{font-size:22px;font-weight:800;text-decoration:none;color:#8be0b7}.brand span{color:#9aabb8}#identity{margin-left:auto;font-size:13px;color:#9aabb8}main{max-width:1140px;margin:42px auto;padding:0 24px}.panel{border:1px solid #2d4050;border-radius:16px;padding:32px;background:linear-gradient(130deg,#172633,#111b24);margin-bottom:24px}h1{font-size:30px;margin:12px 0 20px}h2{font-size:22px}.eyebrow{font-size:11px;letter-spacing:2px;color:#8be0b7}p{color:#adbfcc;line-height:1.7}button,input{font:inherit}button{cursor:pointer;border:1px solid #3a5366;border-radius:8px;background:#23394a;color:#e3eef4;padding:12px 18px}button.primary{background:#8be0b7;color:#10251c;border-color:#8be0b7;font-weight:700}button:disabled{opacity:.4;cursor:default}[hidden]{display:none!important}form{display:flex;align-items:end;gap:14px;flex-wrap:wrap}label{display:flex;flex-direction:column;gap:7px;font-size:12px;color:#b5c7d5}input{border:1px solid #3a5366;background:#0c1720;color:#e3eef4;padding:12px;border-radius:8px}.grant-row{display:flex;gap:14px;align-items:center;padding:15px 0;border-bottom:1px solid #283e4c;flex-wrap:wrap}.grant-row span{flex:1}.grant-row small{color:#9aabb8}.divider{height:1px;background:#334a59;margin:32px 0}.cards{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:18px 0}.cards>small{min-width:70px}.card{width:54px;height:76px;padding:7px;border-radius:6px;color:#fff;font-weight:800;font-size:24px;box-shadow:0 4px 9px #0006}.card i{display:block;font-style:normal;font-size:26px}.card.s{background:#23364d}.card.h{background:#bf2947}.card.d{background:#2564bd}.card.c{background:#21845b}.context{background:#0d1a23;padding:16px;border-radius:8px;border-left:3px solid #8be0b7}.choices{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}.feedback{padding:20px;background:#183b2c;border:1px solid #3d7d5d;border-radius:8px}.feedback.wrong{background:#3b2921;border-color:#95634b}.nav{display:flex;gap:10px;margin-top:25px}.badge{display:inline-block;padding:6px 10px;border:1px solid #4d6b7e;border-radius:20px;font-size:12px}.footnote{font-size:11px;text-align:center}#notice{color:#f1cb90}#draft-preview{margin:18px 0}@media(max-width:650px){main{padding:0 14px;margin:24px auto}.panel{padding:20px}h1{font-size:24px}header{padding:18px 14px;gap:12px}#identity{font-size:10px;overflow-wrap:anywhere}.card{width:45px;height:66px;font-size:20px}}

.desktop header{padding:14px 22px}.desktop header .brand{font-size:18px}.desktop main{margin:20px auto;padding:0 16px}.desktop .panel{padding:24px}.desktop #draft-file{display:none}.desktop .footnote{font-size:10px}.desktop h1{font-size:26px}@media(max-width:650px){.desktop .panel{padding:16px}.desktop main{padding:0 10px}}

.players{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}.player{display:block;min-width:80px;text-align:center;padding:14px;border:1px solid #496173;border-radius:9px;background:#172834}.hero-player{border-color:#8be0b7}.answer-saved{color:#adbfcc}.final-hand{padding:18px 0;border-bottom:1px solid #2b4354}.final-hand summary{cursor:pointer;line-height:1.8}

/* Student deterrents. These do not prevent OS screenshots or an authorized extraction. */
#assignment{position:relative;isolation:isolate;overflow:hidden}
.watermark-layer{position:absolute;inset:0;z-index:5;pointer-events:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:160px;overflow:hidden;opacity:.16;user-select:none}
.watermark-layer span{align-self:center;justify-self:center;max-width:94%;overflow-wrap:anywhere;text-align:center;transform:rotate(-18deg);font-size:11px;line-height:1.3;color:#cce3e9;font-weight:600}
body[data-content-role="student"] #assignment{-webkit-user-select:none;user-select:none}
body[data-content-role="student"] #assignment img{-webkit-user-drag:none}
.private-guideline{margin:20px 0}.private-guideline-canvas{display:block;width:100%;height:auto;background:#fff;border-radius:6px}.guideline-upload{margin-top:20px}.guideline-upload small{max-width:650px;line-height:1.6}.print-notice{display:none}
@media(max-width:650px){.watermark-layer{grid-template-columns:minmax(0,1fr)}}
@media print{body[data-content-role="student"]>*{display:none!important}body[data-content-role="student"]>.print-notice{display:block!important;color:#000;background:#fff;padding:32px;font:18px Arial}}

body[data-content-role="student"] .private-guideline-canvas{-webkit-touch-callout:none}

#grant-form label:first-child{flex:1 1 340px}#grant-email{font:inherit;border:1px solid #3a5366;background:#0c1720;color:#e3eef4;padding:12px;border-radius:8px;width:100%;min-width:0;resize:vertical}#grant-help{max-width:530px;line-height:1.6;color:#9aabb8}#grant-message{color:#8be0b7;overflow-wrap:anywhere}

.access-invite{margin:20px 0 30px;padding-bottom:24px;border-bottom:1px solid #2d4050}.access-invite label{max-width:600px}.access-invite>button{margin-top:12px}#request-access{margin-top:24px;padding-top:16px;border-top:1px solid #2d4050}#request-status,#requests-message{overflow-wrap:anywhere}