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.link{font-weight:600}
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.level-bar{margin-bottom:1.2rem}
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.week-nav{display:flex;align-items:center;gap:.8rem;margin:.6rem 0 1rem;flex-wrap:wrap}
.week-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:.6rem}.day{background:#fff;border:1px solid var(--line);border-radius:12px;padding:.6rem;min-height:140px}.day.today{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}.day.past{opacity:.75}.day.exam{background:var(--warn-soft)}.day-head{font-weight:700;margin-bottom:.4rem;font-size:.9rem}.day-head span{color:var(--muted);font-weight:500;font-size:.8rem}
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/* quiz */
body.quiz-mode .footer{display:none}.quiz{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.quiz-top{display:flex;justify-content:space-between;align-items:center;padding:.8rem 1.1rem;gap:1rem;flex-wrap:wrap}.quiz-status{display:flex;gap:1rem;align-items:center;font-weight:600}.timer{font-variant-numeric:tabular-nums;background:#eef1f6;padding:.25rem .6rem;border-radius:8px}.timer.warn{background:var(--bad-soft);color:var(--bad)}
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.question-area{padding:1.2rem 1.4rem}.section-label{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:.4rem}.question .stem{font-size:1.12rem;margin-bottom:1rem}.passage{background:#f8f9fc;border:1px solid var(--line);border-radius:10px;padding:.9rem 1rem;margin-bottom:1rem;max-height:320px;overflow:auto;font-size:.97rem}.passage strong{display:block;margin-bottom:.3rem}
.options{list-style:none;padding:0;margin:0;display:grid;gap:.5rem}.options button{text-align:left;padding:.7rem .9rem;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;font:inherit;display:flex;gap:.7rem;align-items:flex-start;width:100%}.options button .letter{width:26px;height:26px;border-radius:50%;background:#eef1f6;display:inline-grid;place-items:center;font-weight:700;font-size:.85rem;flex-shrink:0}.options button.selected{border-color:var(--brand);background:var(--brand-soft)}.options button.right{border-color:var(--ok);background:var(--ok-soft)}.options button.wrong{border-color:var(--bad);background:var(--bad-soft)}.options button[disabled]{cursor:default}
.short-answer input{width:100%;max-width:340px;padding:.7rem .8rem;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:1.05rem}.short-answer .hint{font-size:.85rem;color:var(--muted);margin-top:.4rem}
.feedback{margin-top:1rem;padding:.9rem 1rem;border-radius:10px}.feedback.ok{background:var(--ok-soft)}.feedback.bad{background:var(--bad-soft)}.feedback .fb-title{font-weight:700;margin-bottom:.3rem}.feedback details{margin-top:.4rem;font-size:.9rem}
.quiz-actions{display:flex;gap:.6rem;margin-top:1.4rem;flex-wrap:wrap}.quiz-actions #finish{margin-left:auto}
.modal{position:fixed;inset:0;background:rgba(20,30,60,.45);display:grid;place-items:center;z-index:50}.modal-box{background:#fff;border-radius:14px;padding:1.4rem;max-width:420px;width:92%}.modal-box .row{justify-content:flex-end;margin-top:1rem}
@media print{.topbar,.footer,.banner,.no-print,.btn{display:none!important}body{background:#fff}.card{box-shadow:none;break-inside:avoid}}
@media (max-width:900px){.grid-3,.grid-4{grid-template-columns:1fr 1fr}.hero{grid-template-columns:1fr}.hero-card{transform:none}.week-grid{grid-template-columns:repeat(2,1fr)}.stat-row{grid-template-columns:1fr 1fr}.quiz-body{grid-template-columns:1fr}.palette{border-right:0;border-bottom:1px solid var(--line);grid-template-columns:repeat(10,1fr)}.span-2{grid-column:span 2}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.span-2{grid-column:auto}.nav{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;flex-direction:column;padding:.6rem 1rem;border-bottom:1px solid var(--line)}body.nav-open .nav{display:flex}.menu-btn{display:block;margin-left:auto}.nav-right{margin-left:auto}.topbar .wrap{gap:.6rem}.hero h1{font-size:1.8rem}.week-grid{grid-template-columns:1fr}.phases{grid-template-columns:1fr}.palette{grid-template-columns:repeat(8,1fr)}}

.qr-box{display:inline-block;background:#fff;padding:.6rem;border:1px solid var(--line);border-radius:12px;margin:.6rem 0}.qr-box svg{width:260px;height:260px;display:block}.mono{font-family:ui-monospace,Menlo,monospace;letter-spacing:.06em}.steps{padding-left:1.3rem}.steps li{margin:.4rem 0}
.btn-wechat{background:#07c160;color:#fff}.btn-wechat:hover{background:#06ad56}
.nav-logout{display:inline}.nav-logout button{background:none;border:0;font:inherit;font-weight:500;color:var(--muted);padding:.45rem .7rem;border-radius:8px;cursor:pointer}.nav-logout button:hover{background:var(--bad-soft);color:var(--bad)}

/* Singapore skyline backdrop */
body::before{content:"";position:fixed;left:0;right:0;bottom:0;height:min(32vh,260px);background:url("../img/skyline.70790c35f5fa.svg") center bottom/auto 100% repeat-x;pointer-events:none;z-index:0;opacity:.9}
body>*{position:relative;z-index:1}
.footer{background:rgba(255,255,255,.7);backdrop-filter:blur(4px)}
.hero{position:relative}.hero::after{content:"";position:absolute;inset:auto -30vw -3.5rem;height:180px;background:url("../img/skyline.70790c35f5fa.svg") center bottom/auto 100% repeat-x;opacity:.55;pointer-events:none;z-index:-1}
.eyebrow{color:#c8102e}.eyebrow::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:#c8102e;margin-right:.45rem;vertical-align:middle}
body.quiz-mode::before{opacity:.35}
@media print{body::before{display:none}}
.vocab{max-width:720px;margin:0 auto}.vocab-top{display:flex;justify-content:space-between;margin-bottom:.8rem}.vocab-word{font-size:2.2rem;font-weight:800;margin:.4rem 0 .2rem;letter-spacing:-.01em}.vocab-reveal{margin-top:1rem;padding:1rem;border-radius:12px;background:#f8f9fc;border:1px solid var(--line)}.vocab-def{font-size:1.05rem;margin:.4rem 0}.vocab-ex{margin:.4rem 0 .8rem;color:#333}.stem-preview{color:var(--muted);font-weight:400;font-size:.9rem}.review summary input{margin-right:.3rem}
.contact-block{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center;justify-content:inherit}.btn-whatsapp{background:#25d366;color:#fff}.btn-whatsapp:hover{background:#1ebe5b}.wechat-qr{position:relative;display:inline-block}.wechat-qr summary{list-style:none;cursor:pointer}.wechat-qr summary::-webkit-details-marker{display:none}.qr-pop{position:absolute;top:110%;left:0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:.6rem;box-shadow:var(--shadow);z-index:30;text-align:center}.qr-pop img{width:200px;height:200px;display:block}.contact-section{padding:1.5rem 0;text-align:center}.contact-section h2{font-size:1.6rem}.contact-section .contact-block{justify-content:center}
.level-row{border-top:1px solid var(--line);padding:.8rem 0}.level-row h3{margin-bottom:.3rem}.topic-card.center{text-align:center;align-items:center;text-decoration:none;color:var(--ink)}