/* Hinh Anh Y Hoc V4.6 — subject-centric learning space */
.btn.compact{min-height:34px;padding:7px 12px;font-size:10px;border-radius:9px}.v46-demo-cta{background:linear-gradient(135deg,#0d8c82,#5b6cf0);color:white;border:none;box-shadow:0 10px 25px rgba(35,103,146,.2)}.v46-demo-cta:hover{transform:translateY(-1px);filter:brightness(.98)}

/* Top bar: no breadcrumb/search, quick schedule access */
.v46-top-quick{display:flex;align-items:center;gap:8px}.v46-top-quick a{display:flex;align-items:center;gap:8px;min-height:40px;padding:9px 14px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--muted);font-size:11px;font-weight:700}.v46-top-quick a:hover{color:var(--teal);border-color:#9bc9c2;background:var(--teal-light)}.v46-top-quick .icon{width:16px;height:16px}.topbar .top-actions{margin-left:auto}.v46-subject-nav-label{margin-top:16px;color:#6eb7ad}.v46-subject-nav-label+ .nav-link{border-top:1px solid transparent}

/* Floating support */
.v46-support{position:fixed;right:26px;bottom:24px;z-index:120;display:flex;flex-direction:column;align-items:flex-end;gap:12px;pointer-events:none}.v46-support-main,.v46-support-menu>*{pointer-events:auto}.v46-support-main{position:relative;width:78px;height:78px;border-radius:26px;border:0;background:linear-gradient(145deg,#0e6c78,#2c72ed 55%,#10aeb0);color:white;box-shadow:0 18px 42px rgba(21,85,118,.25);display:grid;place-items:center;padding:8px;overflow:visible}.v46-support-main .icon{width:26px;height:26px}.v46-support-main b{font-size:8px;letter-spacing:.7px;margin-top:-6px}.v46-support-main i{position:absolute;width:10px;height:10px;border-radius:50%;right:4px;top:5px;background:#4fe09f;border:2px solid white;box-shadow:0 0 0 4px rgba(79,224,159,.13)}.v46-support-ring{position:absolute;inset:-5px;border:2px solid rgba(51,117,239,.35);border-radius:31px;animation:v46SupportPulse 2.8s ease-in-out infinite}.v46-support-menu{display:flex;flex-direction:column;gap:9px;align-items:flex-end;opacity:0;transform:translateY(12px) scale(.96);pointer-events:none;transition:.2s ease}.v46-support.open .v46-support-menu{opacity:1;transform:none;pointer-events:auto}.v46-support.open .v46-support-main{display:none}.v46-support-item{min-width:188px;height:48px;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:7px 9px 7px 18px;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:0 12px 30px rgba(20,54,68,.13);font-weight:750;font-size:12px;color:#315578}.v46-support-item i{width:36px;height:36px;border-radius:13px;display:grid;place-items:center;color:white;background:#2e71e9}.v46-support-item i .icon{width:18px}.v46-support-zalo i{background:linear-gradient(135deg,#0d7bf1,#25a5ff)}.v46-support-phone{color:#188553}.v46-support-phone i{background:linear-gradient(135deg,#1dbb68,#39d98a)}.v46-support-group i{background:linear-gradient(135deg,#485ac7,#253da6)}.v46-support-close{width:52px;height:52px;border:0;border-radius:18px;background:linear-gradient(135deg,#2858e7,#11a7af);color:white;display:grid;place-items:center;box-shadow:0 12px 30px rgba(26,84,142,.23)}.v46-support-close .icon{width:25px;height:25px}@keyframes v46SupportPulse{0%,100%{transform:scale(.96);opacity:.35}50%{transform:scale(1.08);opacity:.75}}

/* Dashboard strip */
.v46-dashboard-strip{margin-top:26px;padding:18px 20px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(120deg,var(--surface),rgba(232,247,244,.7));display:flex;align-items:center;justify-content:space-between;gap:18px;box-shadow:var(--shadow-soft)}.v46-dashboard-strip>div:first-child{display:flex;align-items:flex-start;gap:13px;min-width:0}.v46-strip-icon{width:40px;height:40px;border-radius:12px;background:var(--teal-light);color:var(--teal);display:grid;place-items:center;flex:0 0 40px}.v46-strip-icon .icon{width:19px}.v46-dashboard-strip h3{font-size:14px}.v46-dashboard-strip p:not(.eyebrow){font-size:10px;color:var(--muted);margin-top:5px;line-height:1.6}.v46-strip-actions{display:flex;gap:8px;flex-shrink:0}

/* Course cards */
.v46-course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:22px}.v46-course-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 12px 34px rgba(16,51,64,.08);min-width:0}.v46-course-cover{height:220px;position:relative;overflow:hidden;padding:26px 28px;color:#12364a;background:linear-gradient(135deg,#e6f7f4 0%,#dceef9 44%,#fff2d8 100%)}.v46-course-cover.blue{background:linear-gradient(135deg,#e9f0ff,#dff7f1 55%,#fff0d5)}.v46-course-cover.orange{background:linear-gradient(135deg,#fff0df,#f2e9ff 55%,#e5f5ff)}.v46-course-cover.purple{background:linear-gradient(135deg,#eee8ff,#e6f8f5 55%,#fff4d9)}.v46-course-cover:after{content:"";position:absolute;inset:auto -90px -100px auto;width:270px;height:270px;border-radius:50%;background:radial-gradient(circle,rgba(16,119,115,.13),rgba(16,119,115,0) 65%)}.v46-course-cover-orbit{position:absolute;width:220px;height:220px;right:35px;top:12px;border-radius:46% 54% 50% 50%;border:1px solid rgba(23,113,124,.18);box-shadow:0 0 0 28px rgba(23,113,124,.03),0 0 0 56px rgba(23,113,124,.02);transform:rotate(18deg)}.v46-course-cover-label{position:relative;z-index:2;display:inline-flex;padding:5px 9px;border-radius:99px;background:rgba(255,255,255,.75);color:#178577;font-size:8px;font-weight:800;letter-spacing:1px}.v46-course-cover-index{position:absolute;right:22px;top:20px;font:800 11px/1 monospace;color:#7e9ba4}.v46-course-cover-icon{position:absolute;right:56px;bottom:39px;width:80px;height:80px;border-radius:24px;background:rgba(255,255,255,.74);backdrop-filter:blur(4px);display:grid;place-items:center;color:#0f7d77;box-shadow:0 17px 34px rgba(20,79,91,.12);z-index:2;transform:rotate(5deg)}.v46-course-cover-icon .icon{width:40px;height:40px}.v46-course-cover strong{position:absolute;left:28px;top:78px;max-width:62%;font-size:32px;line-height:1.12;letter-spacing:-1.3px;z-index:2}.v46-course-cover small{position:absolute;left:28px;bottom:24px;font-size:8px;letter-spacing:1.7px;color:#6a8993;z-index:2}.v46-course-body{padding:24px 26px 25px}.v46-course-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.v46-course-title-row h2{font-size:23px;line-height:1.2}.v46-progress-label{display:flex;justify-content:space-between;align-items:center;margin-top:20px;font-size:11px}.v46-progress-label b{color:#0c9b61;font-size:12px}.v46-progress-track{height:8px;border-radius:99px;background:#edf0f2;overflow:hidden;margin-top:7px}.v46-progress-track i{display:block;height:100%;background:linear-gradient(90deg,#12b968,#34d38d);border-radius:inherit}.v46-course-result{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:10px;color:var(--muted);font-size:10px}.v46-course-result span b{color:#0a9a62}.v46-course-result strong{font-size:10px;color:#5f7180}.v46-course-actions{display:flex;align-items:center;gap:10px;margin-top:20px}.v46-course-actions .btn.primary{flex:1;min-height:48px;border-radius:12px;font-size:13px}.v46-leave-btn{min-height:36px;padding:7px 11px;border:1px solid #e9c6c6;background:#fff8f8;color:#a64a4a;font-size:9px;border-radius:10px}.v46-leave-btn:hover{background:#fff0f0;border-color:#d99b9b}

/* Subject shared header */
.v46-subject-space{max-width:1320px;margin:0 auto}.v46-subject-header{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 18px;border:1px solid var(--line);background:var(--surface);border-radius:16px;margin-bottom:18px;box-shadow:0 7px 22px rgba(19,51,62,.04)}.v46-subject-identity{display:flex;align-items:center;gap:12px}.v46-subject-avatar{width:42px;height:42px;border-radius:13px;background:linear-gradient(145deg,#5b62f6,#7d39ec);color:white;display:grid;place-items:center;font-weight:800}.v46-subject-identity h2{font-size:15px}.v46-subject-identity p{display:flex;align-items:center;gap:5px;font-size:9px;color:var(--muted);margin-top:3px}.v46-subject-identity p .icon{width:11px}.v46-subject-header-actions{display:flex;align-items:center;gap:8px}.v46-subject-header-actions .btn .icon:first-child{transform:rotate(180deg)}.v46-outline-cta{min-height:34px;padding:7px 12px;border:1px solid #b9d4d0;background:#f4fbfa;color:#0b7972;font-size:10px;border-radius:9px}

/* Subject hero */
.v46-subject-hero{min-height:310px;padding:38px 44px;display:grid;grid-template-columns:minmax(0,1fr) 390px;align-items:center;gap:38px;border:1px solid #e4eaee;border-radius:24px;background:radial-gradient(circle at 90% 10%,rgba(77,193,175,.11),transparent 32%),linear-gradient(180deg,#fff,#fbfdfd);overflow:hidden;position:relative}.v46-subject-hero-copy{position:relative;z-index:2}.v46-live-pill{display:inline-flex;align-items:center;gap:7px;padding:5px 9px;border-radius:99px;background:#e8f8ee;color:#18814d;font-size:8px;font-weight:800;letter-spacing:.7px}.v46-live-pill i{width:6px;height:6px;border-radius:50%;background:#28bf73}.v46-subject-hero h1{font-size:43px;line-height:1.06;letter-spacing:-1.7px;margin:14px 0 10px}.v46-subject-hero-copy>p{max-width:650px;color:var(--muted);font-size:11px;line-height:1.75}.v46-subject-hero-metrics{display:flex;gap:24px;margin:22px 0}.v46-subject-hero-metrics span{display:flex;align-items:baseline;gap:7px;padding-right:23px;border-right:1px solid var(--line)}.v46-subject-hero-metrics span:last-child{border-right:0}.v46-subject-hero-metrics b{font-size:18px}.v46-subject-hero-metrics small{font-size:8px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px}.v46-hero-cta{border-radius:10px;box-shadow:0 10px 22px rgba(11,113,108,.18)}.v46-course-poster{width:320px;height:220px;justify-self:end;position:relative;border-radius:17px;background:linear-gradient(145deg,#dff7f3,#eef6ff 45%,#fff1d8);box-shadow:0 22px 46px rgba(25,72,87,.18);transform:rotate(4deg);padding:24px;overflow:hidden;color:#153b4f}.v46-course-poster:after{content:"";position:absolute;inset:auto -40px -60px auto;width:180px;height:180px;border-radius:50%;background:#4bbfb228}.v46-poster-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(15,107,111,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(15,107,111,.05) 1px,transparent 1px);background-size:20px 20px;mask-image:linear-gradient(to bottom,black,transparent)}.v46-poster-kicker{position:relative;z-index:2;font-size:7px;font-weight:800;letter-spacing:1.5px;color:#4b8e8a}.v46-course-poster strong{position:relative;z-index:2;display:block;max-width:200px;font-size:27px;line-height:1.1;margin-top:18px}.v46-poster-icon{position:absolute;right:30px;bottom:35px;width:76px;height:76px;border-radius:25px;background:#ffffffb8;display:grid;place-items:center;color:#0b7f78;z-index:2}.v46-poster-icon .icon{width:38px;height:38px}.v46-course-poster small{position:absolute;left:24px;bottom:20px;font-size:7px;letter-spacing:1.2px;color:#6b8a92;z-index:2}

/* Subject tool grid */
.v46-mode-section{padding-top:29px}.v46-section-heading{display:flex;align-items:center;gap:10px;margin:0 0 16px}.v46-section-heading>span{width:4px;height:28px;border-radius:6px;background:#2876ff}.v46-section-heading>span.purple{background:#8d43f0}.v46-section-heading>span.orange{background:#fb6b2f}.v46-section-heading .eyebrow{margin-bottom:2px}.v46-section-heading h2{font-size:19px}.v46-section-heading.with-line{margin-top:30px;padding-top:20px;border-top:1px solid var(--line)}.v46-section-heading.with-line>small{margin-left:auto;color:var(--muted)}.v46-tool-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.v46-tool-card{min-height:190px;border:1px solid var(--line);border-radius:17px;background:var(--surface);padding:19px;position:relative;overflow:hidden;box-shadow:0 8px 25px rgba(13,47,61,.05);display:flex;flex-direction:column}.v46-tool-card:after{content:"";position:absolute;right:-38px;top:-40px;width:105px;height:105px;border-radius:50%;background:var(--tone-soft,#e8f4ff)}.v46-tool-card:hover{transform:translateY(-3px);box-shadow:0 15px 33px rgba(13,47,61,.09);border-color:#bfd3d9}.v46-tool-icon{width:42px;height:42px;border-radius:12px;background:var(--tone-soft,#e8f4ff);color:var(--tone,#2376ee);display:grid;place-items:center;margin-bottom:17px;position:relative;z-index:1}.v46-tool-icon .icon{width:20px}.v46-tool-card h3{font-size:14px}.v46-tool-card p{font-size:9px;color:var(--muted);line-height:1.65;margin-top:7px}.v46-tool-link{margin-top:auto;padding-top:14px;color:var(--tone,#2376ee);font-size:9px;font-weight:800;display:flex;gap:5px;align-items:center}.v46-tool-link .icon{width:13px}.tone-ocean{--tone:#2b70ef;--tone-soft:#eaf1ff}.tone-violet{--tone:#7848e9;--tone-soft:#f1eaff}.tone-indigo{--tone:#495add;--tone-soft:#eceeff}.tone-orange{--tone:#f16a2d;--tone-soft:#fff0e8}.tone-mint{--tone:#10a77b;--tone-soft:#e7f8f3}.tone-gold{--tone:#d79c12;--tone-soft:#fff7dc}.tone-purple{--tone:#8750db;--tone-soft:#f3ecff}.v46-subject-bottom{display:grid;grid-template-columns:minmax(280px,.8fr) minmax(0,1.5fr);gap:24px;margin-top:30px}.v46-ranking-panel{padding:0;overflow:hidden}.v46-rank-highlight{padding:22px;color:white;background:linear-gradient(135deg,#7043e8,#4e58e9 55%,#237bbf)}.v46-rank-highlight small{font-size:9px}.v46-rank-highlight strong{display:block;font-size:35px;line-height:1.1;margin:4px 0}.v46-rank-highlight p{font-size:9px;color:#e6e3ff}.v46-ranking-panel>.v46-rank-row{margin:0 16px}.v46-ranking-panel>.text-link{margin:15px 16px 18px}.v46-rank-row{display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:8px;padding:11px 0;border-bottom:1px solid var(--line);font-size:10px}.v46-rank-row b{color:#7755e8}.v46-rank-row strong{color:#0f8e66}.v46-rank-row.large{grid-template-columns:45px minmax(0,1fr) 70px 70px;padding:16px 3px;font-size:12px}.v46-history-list,.v46-history-grid{display:grid;gap:10px}.v46-history-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.v46-history-card{border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:13px;display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:10px;align-items:center}.v46-history-score{width:45px;height:45px;border-radius:12px;background:#e8f8ef;display:grid;grid-template-columns:auto auto;place-content:center;gap:0 3px;color:#0c9660}.v46-history-score span{display:none}.v46-history-score strong{font-size:15px}.v46-history-score small{font-size:7px;align-self:end;margin-bottom:4px}.v46-history-card>div:nth-child(2)>strong{font-size:10px}.v46-history-card p,.v46-history-card>div:nth-child(2)>small{font-size:8px;color:var(--muted)}.v46-history-card .text-link{font-size:8px}.v46-subject-footnote{display:flex;gap:18px;margin:22px 0 0;color:var(--muted);font-size:9px}.v46-subject-footnote span{display:flex;align-items:center;gap:6px}.v46-subject-footnote .icon{width:13px}

/* Practice list */
.v46-list-banner{display:grid;grid-template-columns:52px minmax(0,1fr) auto;align-items:center;gap:18px;padding:25px 28px;margin-bottom:20px;border-radius:18px;color:white;background:linear-gradient(120deg,#2466ee,#4c4ee6 55%,#6a42d8);box-shadow:0 13px 28px rgba(63,77,214,.2)}.v46-list-banner>span{width:50px;height:50px;border-radius:15px;background:#ffffff16;border:1px solid #ffffff29;display:grid;place-items:center}.v46-list-banner>span .icon{width:24px}.v46-list-banner .eyebrow{color:#cfd9ff;margin-bottom:3px}.v46-list-banner h1{font-size:22px;letter-spacing:-.6px}.v46-list-banner p{font-size:9px;color:#e8eaff;margin-top:4px}.v46-list-banner>b{font-size:10px;background:#ffffff17;border:1px solid #ffffff20;padding:8px 12px;border-radius:10px}.v46-exam-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.v46-exam-card{position:relative;border:1px solid var(--line);border-radius:17px;background:var(--surface);padding:18px;display:grid;grid-template-columns:48px minmax(0,1fr);gap:13px;box-shadow:0 7px 22px rgba(20,55,67,.05);overflow:hidden}.v46-exam-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent,#3875ef)}.v46-exam-card .btn{grid-column:1/-1;min-height:40px;margin-top:4px;border-radius:10px;background:linear-gradient(90deg,var(--accent,#3875ef),var(--accent-2,#4148e9))}.v46-exam-icon{width:46px;height:46px;border-radius:13px;background:color-mix(in srgb,var(--accent,#3875ef) 10%,transparent);color:var(--accent,#3875ef);display:grid;place-items:center}.v46-exam-card-copy{min-width:0}.v46-exam-card h3{font-size:13px;margin-top:5px}.v46-exam-card p{font-size:9px;color:var(--muted);margin-top:5px}.v46-card-status{display:inline-flex;align-items:center;gap:5px;font-size:8px;color:#2d9b68}.v46-card-status i{width:6px;height:6px;border-radius:50%;background:#2ec477}.v46-exam-meta{display:flex;gap:10px;margin-top:11px}.v46-exam-meta span{display:flex;align-items:center;gap:4px;font-size:8px;color:var(--accent,#3875ef);background:color-mix(in srgb,var(--accent,#3875ef) 8%,transparent);padding:4px 7px;border-radius:7px}.v46-exam-meta .icon{width:11px}.accent-0{--accent:#366ff1;--accent-2:#18a0c1}.accent-1{--accent:#7a35f1;--accent-2:#5149e8}.accent-2{--accent:#e62d6b;--accent-2:#f24d56}.accent-3{--accent:#0aa574;--accent-2:#12a794}.accent-4{--accent:#f36b18;--accent-2:#f04545}.accent-5{--accent:#8f2ce9;--accent-2:#4e45e7}

/* Exam builder */
.v46-practice-intro{display:flex;gap:13px;align-items:flex-start;padding:18px 20px;border:1px solid #cfe1ff;border-radius:14px;background:#edf4ff;margin-bottom:20px}.v46-practice-intro>span{width:34px;height:34px;border-radius:10px;background:white;color:#4b61ee;display:grid;place-items:center}.v46-practice-intro .icon{width:17px}.v46-practice-intro h2{font-size:14px}.v46-practice-intro p{font-size:9px;color:#51657d;line-height:1.6;margin-top:4px}.v46-exam-builder{display:grid;gap:20px}.v46-builder-step{border:0;padding:0}.v46-step-title{display:flex;align-items:center;gap:9px;margin-bottom:12px}.v46-step-title>b{width:22px;height:22px;border-radius:50%;background:#e9ecff;color:#4d5de7;display:grid;place-items:center;font-size:9px}.v46-step-title h3{font-size:13px}.v46-step-title .btn{margin-left:auto}.v46-source-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.v46-source-card{position:relative;display:grid;grid-template-columns:40px minmax(0,1fr) 20px;gap:9px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:12px;background:var(--surface);cursor:pointer}.v46-source-card:has(input:checked){border-color:#5963f0;box-shadow:0 0 0 1px #5963f0}.v46-source-card input{position:absolute;opacity:0}.v46-source-card>span:nth-of-type(2){display:flex;flex-direction:column;min-width:0}.v46-source-card strong{font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.v46-source-card small{font-size:8px;color:var(--muted)}.v46-source-icon{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:#edf2ff;color:var(--accent,#4b64ee)}.v46-source-icon .icon{width:16px}.v46-source-card>i{width:18px;height:18px;border-radius:50%;background:#5560e8;color:white;display:none;place-items:center}.v46-source-card:has(input:checked)>i{display:grid}.v46-source-card>i .icon{width:10px}.v46-builder-row{display:grid;grid-template-columns:1fr 1fr;gap:28px}.v46-choice-row{display:flex;gap:7px;flex-wrap:wrap}.v46-choice-row label{cursor:pointer}.v46-choice-row input{position:absolute;opacity:0}.v46-choice-row span{display:block;min-width:62px;text-align:center;padding:9px 10px;border:1px solid var(--line);border-radius:9px;background:var(--surface);font-size:9px;font-weight:650}.v46-choice-row input:checked+span{border-color:#5957ed;background:linear-gradient(135deg,#5358ec,#8c33e8);color:white;box-shadow:0 7px 16px rgba(90,69,223,.2)}.v46-exam-summary{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border:1px solid var(--line);border-radius:13px;background:var(--surface);box-shadow:0 5px 18px rgba(18,52,64,.06)}.v46-exam-summary small{display:block;color:var(--muted);font-size:8px}.v46-exam-summary strong{display:block;font-size:11px;margin-top:2px}.v46-exam-summary .btn{min-width:190px;background:linear-gradient(90deg,#4d55e9,#922fe8)}

/* Question bank + saved */
.v46-bank-shell{border:1px solid var(--line);border-radius:17px;background:var(--surface);overflow:hidden}.v46-bank-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 14px;border-bottom:1px solid var(--line)}.v46-bank-head>div:first-child{display:flex;align-items:center;gap:10px}.v46-bank-icon{width:34px;height:34px;border-radius:10px;background:#edf0ff;color:#5961e8;display:grid;place-items:center}.v46-bank-icon .icon{width:17px}.v46-bank-head h1,.v46-bank-head h2{font-size:14px}.v46-bank-head p{font-size:8px;color:var(--muted);margin-top:2px}.v46-bank-head select{width:auto;min-width:160px;min-height:36px;font-size:9px}.v46-bank-search{margin:12px 14px;display:grid;grid-template-columns:20px minmax(0,1fr) 30px;align-items:center;gap:6px;border:1px solid var(--line);border-radius:10px;padding:0 9px;background:var(--bg)}.v46-bank-search>.icon{width:14px;color:#8aa0aa}.v46-bank-search input{border:0;background:transparent;outline:0;min-height:38px;color:var(--ink);font-size:10px;width:100%}.v46-bank-search>span{width:28px;height:28px;border-radius:8px;background:#5a50e8;color:white;display:grid;place-items:center}.v46-bank-search>span .icon{width:13px}.v46-question-scroll{max-height:760px;overflow:auto;padding:0 14px 14px;scrollbar-width:thin}.v46-bank-question{padding:16px 9px 19px;border-bottom:1px solid var(--line)}.v46-bank-question:last-child{border-bottom:0}.v46-bank-question-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.v46-question-number{display:inline-flex;padding:4px 7px;border-radius:6px;background:#5155e9;color:white;font-size:8px;font-weight:800}.v46-question-actions{display:flex;gap:4px}.v46-question-actions .btn{font-size:8px;color:var(--muted)}.v46-question-actions .btn.saved{color:#5a4ee8;background:#f1efff}.v46-bank-question h3{font-size:12px;line-height:1.55;margin:12px 0}.v46-answer-list{display:grid;gap:5px}.v46-bank-answer{display:grid;grid-template-columns:24px minmax(0,1fr) 18px;align-items:center;gap:7px;min-height:34px;padding:6px 9px;border:1px solid #eef0f3;border-radius:7px;background:#fafbfc;font-size:9px;color:#566872}.v46-bank-answer>span{font-weight:700}.v46-bank-answer.correct{background:#ecfbf2;border-color:#c5edd5;color:#17784c}.v46-bank-answer.correct .icon{width:13px;color:#0da261}.v46-explanation{margin-top:8px;padding:9px 11px;border-radius:8px;background:#f5f8f8;font-size:9px}.v46-explanation strong{color:var(--teal)}.v46-explanation p{color:var(--muted);margin-top:3px}.v46-review-hero{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 24px;border-radius:17px;background:linear-gradient(135deg,#142f3a,#163f45);color:white;margin-bottom:18px}.v46-review-hero h1{font-size:23px}.v46-review-hero>div:first-child>p:not(.eyebrow){max-width:680px;font-size:10px;color:#b7cdd0;margin-top:7px}.v46-review-actions{display:flex;gap:8px;flex-wrap:wrap}.v46-review-actions .btn.secondary{background:#ffffff12;border-color:#ffffff22;color:white}

/* Flashcard */
.v46-flash-shell,.v46-answer-sheet,.v46-ranking-page,.v46-utility-page{max-width:1180px;margin:0 auto}.v46-flash-heading{margin:18px 0 22px}.v46-flash-heading h1{font-size:28px}.v46-flash-heading>p:not(.eyebrow){font-size:10px;color:var(--muted);margin-top:7px;max-width:720px;line-height:1.7}.v46-flash-card{min-height:360px;border-radius:26px;background:radial-gradient(circle at 80% 10%,rgba(93,94,235,.2),transparent 35%),linear-gradient(145deg,#102e39,#183f49);color:white;padding:44px;display:grid;place-items:center;text-align:center;box-shadow:0 25px 55px rgba(15,48,61,.18);cursor:pointer}.v46-flash-side{max-width:760px}.v46-flash-side h2{font-size:25px;line-height:1.45;margin:18px 0}.v46-flash-side>p{font-size:11px;color:#adc6ca}.v46-flash-side.answer h2{color:#b8f0cf}.v46-flash-controls{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:15px;flex-wrap:wrap}.v46-flash-controls>span{min-width:80px;text-align:center;font-size:10px;color:var(--muted)}

/* Answer sheet */
.v46-answer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.v46-answer-row{border:1px solid var(--line);border-radius:13px;padding:10px;background:var(--surface);display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.v46-answer-row legend{font-size:9px;font-weight:800;color:var(--muted);padding:0 5px}.v46-answer-row label{cursor:pointer}.v46-answer-row input{position:absolute;opacity:0}.v46-answer-row label span{display:grid;place-items:center;height:30px;border:1px solid var(--line);border-radius:8px;font-size:9px;font-weight:700}.v46-answer-row input:checked+span{background:#5661eb;border-color:#5661eb;color:white}.v46-answer-row.correct{border-color:#7bd2a2;background:#f2fbf6}.v46-answer-row.wrong{border-color:#e6a3a3;background:#fff7f7}.v46-answer-submit{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding:14px;border:1px solid var(--line);border-radius:13px;background:var(--surface)}.v46-answer-submit small{display:block;font-size:8px;color:var(--muted)}.v46-answer-submit strong{display:block;font-size:12px;margin-top:2px}

/* Subject stats */
.v46-stats-hero{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:26px 29px;border-radius:19px;background:linear-gradient(135deg,#10313d,#154c50);color:white;margin-bottom:16px}.v46-stats-hero h1{font-size:27px}.v46-stats-hero p:not(.eyebrow){font-size:10px;color:#b4cbcf;margin-top:6px}.v46-stats-hero>strong{font-size:45px;color:#91e0cb}.v46-stat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.v46-stat-card{padding:18px}.v46-stat-card small{font-size:8px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted)}.v46-stat-card strong{display:block;font-size:23px;margin-top:7px}.v46-ranking-table{padding:7px 18px}.v46-ranking-table .empty-state{border:0}

/* Schedule / exam quick pages */
.v46-schedule-grid,.v46-exam-calendar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.v46-schedule-card{display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:13px;align-items:center}.v46-schedule-card>span{width:40px;height:40px;border-radius:11px;background:var(--teal-light);color:var(--teal);display:grid;place-items:center;font:800 10px/1 monospace}.v46-schedule-card h2,.v46-exam-calendar h2{font-size:14px}.v46-schedule-card p:not(.eyebrow),.v46-exam-calendar p:not(.eyebrow){font-size:9px;color:var(--muted);margin-top:4px}.v46-exam-calendar article{display:flex;align-items:center;gap:15px}.v46-exam-calendar article>div{flex:1;min-width:0}.v46-exam-calendar .btn{flex-shrink:0}

/* Dark theme */
[data-theme=dark] .v46-dashboard-strip,[data-theme=dark] .v46-subject-hero{background:linear-gradient(145deg,#10242c,#0e2027);border-color:#243941}[data-theme=dark] .v46-course-cover{filter:saturate(.8) brightness(.72)}[data-theme=dark] .v46-course-cover>*{filter:brightness(1.3)}[data-theme=dark] .v46-bank-answer{background:#0e1e25;border-color:#21343c;color:#adbdc2}[data-theme=dark] .v46-bank-answer.correct{background:#103128;border-color:#245843;color:#8ed2ac}[data-theme=dark] .v46-explanation,[data-theme=dark] .v46-bank-search{background:#0d1d24}[data-theme=dark] .v46-practice-intro{background:#14253c;border-color:#28415e;color:#e3edf8}[data-theme=dark] .v46-practice-intro p{color:#9eb1c5}[data-theme=dark] .v46-leave-btn{background:#2b1b1d;border-color:#5e3337;color:#e4a3a7}[data-theme=dark] .v46-support-item{background:#102129}

@media(max-width:1200px){.v46-tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.v46-subject-hero{grid-template-columns:minmax(0,1fr) 300px}.v46-course-poster{width:280px}.v46-history-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.v46-answer-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:900px){.v46-course-grid{grid-template-columns:1fr}.v46-tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.v46-subject-hero{grid-template-columns:1fr}.v46-course-poster{justify-self:start;width:min(420px,100%);transform:rotate(2deg)}.v46-subject-bottom{grid-template-columns:1fr}.v46-source-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.v46-builder-row{grid-template-columns:1fr}.v46-answer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.v46-schedule-grid,.v46-exam-calendar{grid-template-columns:1fr}}
@media(max-width:760px){.v46-top-quick{margin-left:auto}.v46-top-quick a{width:38px;height:38px;padding:0;justify-content:center}.v46-top-quick a span{display:none}.topbar .top-actions{margin-left:0}.topbar .mode-indicator{display:none}.v46-support{right:14px;bottom:14px}.v46-support-main{width:62px;height:62px;border-radius:21px}.v46-support-main b{font-size:7px}.v46-support-item{min-width:174px}.v46-course-cover{height:190px}.v46-course-cover strong{font-size:27px}.v46-subject-hero{padding:25px 22px}.v46-subject-hero h1{font-size:34px}.v46-subject-hero-metrics{gap:12px;flex-wrap:wrap}.v46-subject-hero-metrics span{padding-right:12px}.v46-tool-grid{grid-template-columns:1fr 1fr}.v46-subject-header{align-items:flex-start;flex-direction:column}.v46-subject-header-actions{width:100%;justify-content:space-between}.v46-list-banner{grid-template-columns:45px minmax(0,1fr);padding:20px}.v46-list-banner>b{display:none}.v46-exam-card-grid{grid-template-columns:1fr}.v46-source-grid{grid-template-columns:1fr}.v46-history-grid{grid-template-columns:1fr}.v46-answer-grid{grid-template-columns:1fr 1fr}.v46-review-hero{align-items:flex-start;flex-direction:column}.v46-flash-card{min-height:300px;padding:28px}.v46-flash-side h2{font-size:20px}.v46-dashboard-strip{align-items:flex-start;flex-direction:column}.v46-strip-actions{width:100%}.v46-strip-actions .btn{flex:1}}
@media(max-width:480px){.v46-course-body{padding:20px}.v46-course-cover{padding:20px}.v46-course-cover strong{left:20px;top:70px;max-width:72%;font-size:24px}.v46-course-cover small{left:20px}.v46-course-cover-icon{width:62px;height:62px;right:24px}.v46-course-cover-icon .icon{width:31px}.v46-course-actions{align-items:stretch;flex-direction:column}.v46-leave-btn{align-self:flex-start}.v46-tool-grid{grid-template-columns:1fr}.v46-subject-hero h1{font-size:30px}.v46-course-poster{height:190px}.v46-subject-hero-metrics span{border-right:0}.v46-subject-hero-metrics{display:grid;grid-template-columns:repeat(3,1fr)}.v46-subject-hero-metrics span{display:block}.v46-subject-hero-metrics small{display:block;margin-top:2px}.v46-answer-grid{grid-template-columns:1fr}.v46-exam-summary{align-items:stretch;flex-direction:column;gap:10px}.v46-exam-summary .btn{width:100%}.v46-bank-head{align-items:stretch;flex-direction:column}.v46-bank-head select{width:100%}.v46-bank-question-top{align-items:flex-start}.v46-question-actions{flex-direction:column;align-items:flex-end}.v46-flash-controls .btn{flex:1 1 42%}.v46-schedule-card{grid-template-columns:38px minmax(0,1fr)}.v46-schedule-card .btn{grid-column:1/-1}.v46-exam-calendar article{align-items:flex-start;flex-direction:column}.v46-exam-calendar .btn{width:100%}}
@media(prefers-reduced-motion:reduce){.v46-support-ring{animation:none}.v46-support-menu{transition:none}}
/* V4.6 visual QA refinements */
.v46-list-banner h1{color:#fff}.v46-list-banner h2{color:#fff}