.auth-shell{min-height:calc(100vh - 70px);display:grid;place-items:center;padding:48px 22px}.auth-card{width:100%;max-width:420px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:34px 30px}.auth-card h1{font-size:1.55rem;margin-bottom:.35rem}.auth-card .sub{color:var(--muted);font-size:.96rem;margin-bottom:1.4rem}.auth-card form{display:grid;gap:14px}.auth-card label{font-family:var(--font-head);font-weight:600;font-size:.88rem;color:var(--navy);display:grid;gap:6px}.auth-card input[type=email],.auth-card input[type=password]{font:inherit;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);width:100%}.auth-card input:focus{outline:2px solid var(--green);outline-offset:1px;border-color:var(--green)}.auth-card .consent{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--muted);font-weight:400;font-family:var(--font-body)}.auth-card .consent input{margin-top:4px}.auth-card button[type=submit]{width:100%}.auth-card .alt{text-align:center;font-size:.92rem;margin-top:1.1rem;color:var(--muted)}.auth-msg{border-radius:10px;padding:12px 14px;font-size:.92rem;display:none}.auth-msg[data-kind=error]{display:block;background:#fdecea;color:var(--bad)}.auth-msg[data-kind=ok]{display:block;background:#e8f4ee;color:var(--ok)}.app-nav{background:var(--white);border-bottom:1px solid var(--line)}.app-nav .wrap{display:flex;gap:22px;align-items:center;height:52px;overflow-x:auto}.app-nav a{font-family:var(--font-head);font-weight:600;font-size:.92rem;color:var(--muted);white-space:nowrap;padding:4px 2px;border-bottom:2px solid transparent}.app-nav a:hover{color:var(--navy);text-decoration:none}.app-nav a[aria-current=page]{color:var(--navy);border-bottom-color:var(--gold)}.app-nav .spacer{flex:1}.app-main{padding:42px 0 72px}.app-main h1{font-size:clamp(1.6rem,3vw,2.2rem)}.grade-tabs{display:inline-flex;gap:4px;margin:14px 0 6px;background:var(--bg-soft);border-radius:999px;padding:4px}.grade-tab{font-family:var(--font-head);font-weight:600;font-size:.9rem;color:var(--muted);background:transparent;border:0;border-radius:999px;padding:7px 20px;cursor:pointer}.grade-tab:hover{color:var(--navy)}.grade-tab[aria-selected=true]{background:var(--white);color:var(--navy);box-shadow:var(--shadow)}.grade-note{margin-top:0}.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.card h2{font-size:1.15rem;margin-bottom:.8rem}.card-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.pill{display:inline-block;font-family:var(--font-head);font-weight:600;font-size:.74rem;padding:3px 10px;border-radius:999px;background:var(--bg-soft);color:var(--navy)}.pill--free{background:#e8f4ee;color:var(--ok)}.pill--locked{background:#f4f0e6;color:#8a6d1a}.test-row{display:flex;align-items:center;gap:14px;padding:14px 4px;border-bottom:1px solid var(--line)}.test-row:last-child{border-bottom:0}.test-row .grow{flex:1;min-width:0}.test-row .name{font-family:var(--font-head);font-weight:600;color:var(--navy)}.test-row .meta{font-size:.84rem;color:var(--muted)}.strength{display:grid;gap:10px}.strength .row{display:grid;grid-template-columns:1fr auto;gap:4px;font-size:.9rem}.strength .bar{grid-column:1 / -1;height:8px;border-radius:999px;background:var(--bg-soft);overflow:hidden}.strength .bar>span{display:block;height:100%;border-radius:999px;background:var(--green)}.strength .bar>span[data-weak]{background:var(--gold)}.runner-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}.timer{font-family:var(--font-head);font-weight:700;font-variant-numeric:tabular-nums;color:var(--navy);background:var(--white);border:1px solid var(--line);padding:8px 16px;border-radius:10px}.timer[data-low]{color:var(--bad);border-color:var(--bad)}.situation{background:var(--white);border-left:4px solid var(--navy);border-radius:0 var(--radius) var(--radius) 0;box-shadow:var(--shadow);padding:22px 24px;margin-bottom:22px}.rank-list{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:10px}.rank-item{display:flex;align-items:center;gap:14px;background:var(--white);border:1.5px solid var(--line);border-radius:12px;padding:14px 16px;cursor:grab;user-select:none}.rank-item.sortable-ghost{opacity:.4}.rank-item.sortable-chosen{border-color:var(--green);box-shadow:var(--shadow)}.rank-item .badge{flex:none;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:var(--navy);color:#fff;font-family:var(--font-head);font-weight:700}.rank-item .text{flex:1}.rank-item .arrows{display:grid;gap:4px}.rank-item .arrows button{border:1px solid var(--line);background:var(--bg);border-radius:8px;width:34px;height:26px;cursor:pointer;color:var(--navy);font-size:.8rem;line-height:1}.rank-item .arrows button:hover{background:var(--bg-soft)}.rank-item .arrows button:disabled{opacity:.35;cursor:default}.result-panel{border-top:4px solid var(--green)}.result-score{font-family:var(--font-head);font-weight:800;font-size:2.6rem;color:var(--navy)}.result-opt{padding:12px 0;border-bottom:1px solid var(--line);font-size:.95rem}.result-opt:last-child{border-bottom:0}.result-opt .heads{display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}.result-opt .delta-good{color:var(--ok);font-weight:600}.result-opt .delta-bad{color:var(--bad);font-weight:600}.result-opt .rationale{color:var(--muted);font-size:.9rem;margin-top:4px}.quiz-passage{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin-bottom:18px;white-space:pre-wrap}.quiz-table{border-collapse:collapse;margin:6px 0 2px;font-size:.95rem;white-space:normal}.quiz-table th,.quiz-table td{border:1px solid var(--line);padding:7px 12px;text-align:left}.quiz-table thead th{background:var(--bg-soft);color:var(--navy);font-family:var(--font-head);font-weight:600;white-space:nowrap}.quiz-choices{display:grid;gap:10px;margin:18px 0 22px}.quiz-choice{display:flex;gap:12px;align-items:center;background:var(--white);border:1.5px solid var(--line);border-radius:12px;padding:14px 16px;cursor:pointer;font:inherit;text-align:left;width:100%}.quiz-choice:hover{border-color:var(--green)}.quiz-choice[aria-pressed=true]{border-color:var(--green);background:#f2faf6}.quiz-choice[data-correct]{border-color:var(--ok);background:#e8f4ee}.quiz-choice[data-wrong]{border-color:var(--bad);background:#fdecea}.quiz-explain{border-left:4px solid var(--gold);background:var(--white);padding:14px 18px;border-radius:0 10px 10px 0;margin-bottom:18px}.quiz-progress{font-size:.88rem;color:var(--muted)}.chooser-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:6px}.chooser-test .test-row .take-paper{flex:none;white-space:nowrap}.done-tick{color:var(--ok);font-weight:700}.timer.timer--low{background:var(--bad);border-color:var(--bad);color:#fff}.pager{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:26px}.pager .pager-nav{flex:none}.page-pills{display:flex;flex-wrap:wrap;gap:6px;flex:1;justify-content:center}.page-pill{font-family:var(--font-head);font-weight:600;font-size:.82rem;width:34px;height:34px;border:1.5px solid var(--line);background:var(--white);color:var(--muted);border-radius:8px;cursor:pointer}.page-pill:hover{border-color:var(--green)}.page-pill.is-answered{border-color:var(--green);color:var(--navy)}.page-pill.is-current{background:var(--navy);border-color:var(--navy);color:#fff}.verbal-statements{display:grid;gap:18px;margin-top:4px}.verbal-statement{border:1.5px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--white)}.verbal-statement .vs-stem{margin:0 0 12px;font-weight:600;color:var(--navy)}.tfcs{display:flex;gap:10px;flex-wrap:wrap}.tfcs-opt{display:inline-flex;align-items:center;gap:8px;font-size:.92rem;padding:8px 14px;border:1.5px solid var(--line);border-radius:999px;cursor:pointer}.tfcs-opt:hover{border-color:var(--green)}.rules-list{margin:0;padding-left:20px;display:grid;gap:8px;color:var(--navy)}.worked-example{padding:14px 0;border-bottom:1px solid var(--line)}.worked-example:last-child{border-bottom:0}.worked-example .we-prompt{margin:0 0 8px}.worked-example .we-answer{margin:0 0 6px;color:var(--navy)}.worked-example .we-explain{margin:0;color:var(--muted);font-size:.92rem}.review-group{padding:6px 0 2px}.review-q{padding:14px 0;border-bottom:1px solid var(--line)}.review-q:last-child{border-bottom:0}.review-stem{margin:0 0 10px;font-weight:600;color:var(--navy)}.review-opts{display:grid;gap:6px}.review-opt{display:flex;align-items:baseline;gap:10px;padding:8px 12px;border-radius:8px;font-size:.95rem}.review-opt.is-correct{background:#fdf6dc}.review-opt.is-picked-wrong{background:#fdecea}.review-opt .review-dot{color:var(--navy)}.review-tag{font-family:var(--font-head);font-weight:600;font-size:.72rem;color:var(--ok)}.review-tag--yours{color:var(--bad)}.review-explain{color:var(--muted);font-size:.9rem;margin-top:8px;border-left:3px solid var(--gold);padding-left:12px}@media(max-width:640px){.auth-card{padding:26px 20px}.rank-item{padding:12px;gap:10px}.page-pills{justify-content:flex-start}}