/* HLA365 study area: desktop-first workspace */
body.study { background: var(--paper); font-size: 16px; }
.boot { min-height: 100vh; display: grid; place-items: center; color: var(--ink-mute); font: 500 15px var(--font-body); }
[hidden] { display: none !important; }

.shell { display: grid; grid-template-columns: 264px minmax(0, 1fr); min-height: 100vh; }

/* ---------- Sidebar ---------- */
.side { position: sticky; top: 0; height: 100vh; background: var(--navy); color: var(--on-navy); display: flex; flex-direction: column; padding: 28px 18px 22px; gap: 28px; }
.side .brand { padding: 0 10px; }
.side__nav { display: grid; gap: 4px; }
.side__nav a { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 10px; color: var(--on-navy); text-decoration: none; font-weight: 500; font-size: 15px; }
.side__nav a:hover { background: var(--navy-2); color: var(--white); }
.side__nav a[aria-current="page"] { background: var(--navy-3); color: var(--white); box-shadow: inset 3px 0 0 var(--coral); }
.ico { width: 18px; height: 18px; flex: none; background: currentColor; opacity: .85; -webkit-mask: var(--m) center/contain no-repeat; mask: var(--m) center/contain no-repeat; }
.ico-prep { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 5h7v14H4zM13 5h7v14h-7z' fill='none' stroke='black' stroke-width='2' stroke-linejoin='round'/%3E%3C/svg%3E"); }
.ico-practice { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='13' r='8' fill='none' stroke='black' stroke-width='2'/%3E%3Cpath d='M12 9v4l3 2M9 2h6' fill='none' stroke='black' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E"); }
.ico-review { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 6c-2-1.5-5-2-8-1.5v13c3-.5 6 0 8 1.5 2-1.5 5-2 8-1.5v-13C17 4 14 4.5 12 6zM12 6v13' fill='none' stroke='black' stroke-width='2' stroke-linejoin='round'/%3E%3C/svg%3E"); }
.side__account { margin-top: auto; padding: 16px 12px 0; border-top: 1px solid var(--line-dark); display: grid; gap: 10px; }
.side__email { font-size: 13px; color: var(--on-navy); overflow-wrap: anywhere; }
.chip { justify-self: start; display: inline-flex; align-items: center; gap: 8px; font: 600 13px/1 var(--font-body); padding: 8px 13px; border-radius: 99px; background: var(--navy-3); color: var(--on-navy); }
.chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; opacity: .75; }
.chip--owner { background: var(--good); color: #fff; }
.chip--trial { background: #F5C563; color: var(--navy); }
.side__links { display: flex; gap: 16px; font-size: 13px; }
.side__links a, .side__links button { color: var(--on-navy-mute); background: none; border: 0; padding: 0; font: inherit; cursor: pointer; text-decoration: none; }
.side__links a:hover, .side__links button:hover { color: var(--coral); }

/* ---------- Main / pages ---------- */
.main { min-width: 0; outline: none; }
.page { width: min(1240px, 100%); margin-inline: auto; padding: 44px 56px 96px; }
.page__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 32px; }
.page__head h1 { font-size: 36px; font-weight: 800; letter-spacing: -.02em; }
.page__head p { margin-top: 8px; max-width: 46em; }
.crumbs { font: 600 14px var(--font-body); color: var(--ink-mute); margin-bottom: 12px; }
.crumbs a { color: var(--coral-deep); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.tag { display: inline-block; font: 600 12.5px/1 var(--font-body); padding: 6px 11px; border-radius: 99px; background: #E3EAF1; color: var(--ink-soft); }
.tag--coral { background: var(--coral-tint); color: var(--coral-deep); }
.panel2 { background: var(--white); border: 1px solid #E1E8EF; border-radius: 16px; }
.muted { color: var(--ink-mute); }

/* Toolbar + table */
.toolbar { display: flex; gap: 12px; margin-bottom: 16px; }
.toolbar input, .toolbar select { font: 400 15px var(--font-body); padding: 11px 14px; border: 1px solid #D3DDE7; border-radius: 10px; background: var(--white); color: var(--ink); }
.toolbar input { flex: 1; max-width: 420px; }
.toolbar input:focus, .toolbar select:focus { outline: none; border-color: var(--coral); }
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font: 600 13px var(--font-body); color: var(--ink-mute); padding: 14px 18px; border-bottom: 1px solid #E1E8EF; }
.table td { padding: 14px 18px; border-bottom: 1px solid #EDF2F6; vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: #F8FAFC; }
.table .num { font: 600 14px var(--font-body); font-variant-numeric: tabular-nums; color: var(--ink-mute); width: 56px; }
.table .title { font-weight: 600; color: var(--ink); }
.table .acts { text-align: right; white-space: nowrap; }
.table .score { font: 600 14px var(--font-body); font-variant-numeric: tabular-nums; white-space: nowrap; }
.btn--sm { padding: 8px 14px; font-size: 14px; border-radius: 8px; }
.btn--soft { background: var(--paper); color: var(--ink); border-color: #D3DDE7; }
.btn--soft:hover { border-color: var(--coral); }
.btn[disabled] { opacity: .45; cursor: not-allowed; transform: none; }

/* Tabs (page-level) */
.ptabs { display: inline-flex; gap: 4px; background: #E3EAF1; padding: 4px; border-radius: 10px; }
.ptabs a { padding: 8px 16px; border-radius: 7px; text-decoration: none; font-weight: 600; font-size: 14px; color: var(--ink-soft); }
.ptabs a[aria-current="page"] { background: var(--navy); color: var(--white); }

/* ---------- Quiz ---------- */
.qgrid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(340px, 1fr); gap: 28px; align-items: start; }
.qcard2 { padding: 36px 40px 32px; }
.qmeta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.steps { display: flex; gap: 5px; flex-wrap: wrap; margin-bottom: 26px; }
.steps i { width: 26px; height: 6px; border-radius: 99px; background: #DCE5ED; }
.steps i.on { background: var(--navy); }
.steps i.ok { background: var(--good); }
.steps i.no { background: var(--bad); }
.steps i.cur { box-shadow: 0 0 0 2px var(--coral); }
.qtext { font: 700 25px/1.3 var(--font-display); color: var(--ink); margin-bottom: 24px; text-wrap: pretty; }
.choices { display: grid; gap: 10px; }
.choice2 { display: flex; gap: 14px; align-items: flex-start; text-align: left; width: 100%; font: 500 16px/1.45 var(--font-body); color: var(--ink); background: var(--white); border: 2px solid #DCE5ED; border-radius: 12px; padding: 14px 16px; cursor: pointer; transition: border-color .12s, background-color .12s; }
.choice2:hover:not(:disabled) { border-color: var(--coral); background: #FFFAF9; }
.choice2 .k { flex: none; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; font: 600 13px var(--font-body); background: var(--paper); border: 1px solid #D3DDE7; color: var(--ink-mute); margin-top: -1px; }
.choice2:disabled { cursor: default; }
.choice2.sel { border-color: var(--navy); background: #F3F7FB; }
.choice2.sel .k { background: var(--navy); border-color: var(--navy); color: #fff; }
.choice2.right { border-color: var(--good); background: #E9F7F2; }
.choice2.right .k { background: var(--good); border-color: var(--good); color: #fff; }
.choice2.wrong { border-color: var(--bad); background: #FDEEEC; }
.choice2.wrong .k { background: var(--bad); border-color: var(--bad); color: #fff; }
.choice2.faded { opacity: .55; }
.qfoot { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 28px; }
.qfoot .hint { font: 400 13.5px var(--font-body); color: var(--ink-mute); }
.kbd { font: 600 12px var(--font-body); background: var(--paper); border: 1px solid #D3DDE7; border-bottom-width: 2px; border-radius: 5px; padding: 1px 6px; color: var(--ink-soft); }
.report { font-size: 13px; color: var(--ink-mute); }
.report a { color: var(--ink-mute); }

.expl { position: sticky; top: 28px; padding: 28px 30px; min-height: 280px; }
.expl__empty { display: grid; place-items: center; text-align: center; min-height: 220px; color: var(--ink-mute); font-size: 15px; }
.verdict { font: 700 20px var(--font-display); margin-bottom: 16px; }
.verdict.ok { color: var(--good); } .verdict.no { color: var(--bad); }
.tabs2 { display: inline-flex; gap: 4px; background: var(--paper); padding: 4px; border-radius: 10px; margin-bottom: 16px; }
.tabs2 button { font: 600 13px var(--font-body); border: 0; background: transparent; color: var(--ink-mute); padding: 8px 14px; border-radius: 7px; cursor: pointer; }
.tabs2 button[aria-selected="true"] { background: var(--navy); color: #fff; }
.expl p { font-size: 16px; line-height: 1.65; }
.recall2 { display: grid; gap: 14px; margin: 0; }
.recall2 dt { font-weight: 600; color: var(--ink); }
.recall2 dd { margin: 2px 0 0; }

.summary { padding: 48px; text-align: center; }
.summary .big { font: 800 72px/1 var(--font-display); color: var(--ink); letter-spacing: -.03em; }
.summary .big small { font-size: 28px; color: var(--ink-mute); font-weight: 700; }
.summary p { margin: 14px auto 28px; max-width: 32em; }
.summary .row { display: flex; justify-content: center; gap: 12px; }

/* Flashcards */
.deck { display: grid; justify-items: center; gap: 22px; }
.flash { width: min(760px, 100%); min-height: 340px; perspective: 1200px; cursor: pointer; border: 0; background: none; padding: 0; text-align: left; }
.flash__in { position: relative; min-height: 340px; transition: transform .45s; transform-style: preserve-3d; }
.flash.flip .flash__in { transform: rotateY(180deg); }
.flash__face { position: absolute; inset: 0; backface-visibility: hidden; background: var(--white); border: 1px solid #E1E8EF; border-radius: 20px; padding: 44px 52px; display: flex; flex-direction: column; justify-content: center; gap: 14px; box-shadow: 0 20px 40px -28px rgba(13,27,42,.4); }
.flash__face.back { transform: rotateY(180deg); background: var(--navy); border-color: var(--navy); color: var(--on-navy); }
.flash__label { font: 600 14px var(--font-body); color: var(--coral-deep); }
.flash__face.back .flash__label { color: var(--coral); }
.flash__txt { font: 700 26px/1.35 var(--font-display); color: var(--ink); text-wrap: pretty; }
.flash__face.back .flash__txt { color: var(--white); font-weight: 600; font-size: 22px; }
.deck__ctl { display: flex; align-items: center; gap: 20px; }
.deck__ctl span { font: 600 14px var(--font-body); font-variant-numeric: tabular-nums; color: var(--ink-mute); min-width: 80px; text-align: center; }

/* ---------- Practice ---------- */
.setup { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(320px, 1fr); gap: 28px; align-items: start; }
.setup__box { padding: 36px 40px; display: grid; gap: 30px; }
.setup h3 { font-size: 15px; font-family: var(--font-body); font-weight: 600; margin-bottom: 12px; color: var(--ink); }
.seg { display: flex; gap: 10px; flex-wrap: wrap; }
.seg button { font: 600 15px var(--font-body); padding: 12px 22px; border-radius: 10px; border: 2px solid #D3DDE7; background: var(--white); color: var(--ink); cursor: pointer; }
.seg button small { display: block; font: 400 12px var(--font-body); color: var(--ink-mute); margin-top: 2px; }
.seg button[aria-pressed="true"] { border-color: var(--navy); background: var(--navy); color: #fff; }
.seg button[aria-pressed="true"] small { color: var(--on-navy-mute); }
.prog { padding: 32px 34px; }
.prog .meter__track { height: 12px; }
.prog p.big { font: 800 40px var(--font-display); color: var(--ink); letter-spacing: -.02em; margin: 12px 0 4px; }

.examgrid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start; }
.exambar { position: sticky; top: 0; z-index: 5; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 16px 56px; background: rgba(244,247,250,.94); backdrop-filter: blur(8px); border-bottom: 1px solid #E1E8EF; }
.exambar h2 { font-size: 18px; }
.timer { font: 500 20px var(--font-mono); color: var(--ink); }
.timer.low { color: var(--bad); }
.navp { position: sticky; top: 92px; padding: 22px; }
.navp h4 { font: 600 14px var(--font-body); color: var(--ink-mute); margin-bottom: 12px; }
.qnav { display: grid; grid-template-columns: repeat(auto-fill, minmax(38px, 1fr)); gap: 6px; max-height: 46vh; overflow-y: auto; padding: 2px; }
.qnav button { height: 38px; border-radius: 8px; border: 1px solid #D3DDE7; background: var(--white); font: 600 13px var(--font-body); font-variant-numeric: tabular-nums; color: var(--ink-soft); cursor: pointer; position: relative; }
.qnav button.ans { background: #E3EAF1; border-color: #C5D2DF; }
.qnav button.cur { background: var(--navy); color: #fff; border-color: var(--navy); }
.qnav button.flag::after { content: ""; position: absolute; top: 3px; right: 3px; width: 8px; height: 8px; border-radius: 50%; background: var(--coral); }
.legend { display: flex; gap: 14px; margin: 14px 0 18px; font-size: 12px; color: var(--ink-mute); flex-wrap: wrap; }
.navp .btn { width: 100%; }

.res { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 28px; align-items: start; }
.res__score { padding: 36px 30px; text-align: center; position: sticky; top: 28px; }
.res__score .big { font: 800 80px/1 var(--font-display); letter-spacing: -.03em; color: var(--ink); }
.res__score .big small { font-size: 30px; color: var(--ink-mute); }
.bytopic { margin-top: 24px; text-align: left; display: grid; gap: 8px; font-size: 14px; }
.bytopic div { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-top: 1px solid #EDF2F6; }
.missed { display: grid; gap: 14px; }
.missed details { background: var(--white); border: 1px solid #E1E8EF; border-radius: 14px; padding: 18px 22px; }
.missed summary { cursor: pointer; font: 600 16px/1.4 var(--font-body); color: var(--ink); list-style: none; }
.missed summary::-webkit-details-marker { display: none; }
.missed .ans { margin: 14px 0 0; display: grid; gap: 6px; font-size: 15px; }
.missed .ans .y { color: var(--bad); } .missed .ans .g { color: var(--good); font-weight: 600; }

/* ---------- Review library ---------- */
.rev { display: grid; grid-template-columns: 320px minmax(0, 1fr); min-height: 100vh; }
.rev__list { position: sticky; top: 0; height: 100vh; overflow-y: auto; border-right: 1px solid #E1E8EF; background: var(--white); padding: 32px 14px 40px; }
.rev__titlebar { display: flex; align-items: center; gap: 10px; padding: 0 12px 6px; }
.rev__list h2 { font-size: 22px; }
.rev__searchbtn { width: 34px; height: 34px; border-radius: 50%; border: 0; background: var(--coral-tint); color: var(--coral-deep); display: grid; place-items: center; cursor: pointer; transition: background-color .15s, color .15s; }
.rev__searchbtn:hover, .rev__searchbtn[aria-expanded="true"] { background: var(--coral); color: var(--navy); }
.rev__search { padding: 10px 12px 4px; }
.rev__search input { width: 100%; font: 400 15px var(--font-body); padding: 10px 14px; border: 1px solid #D3DDE7; border-radius: 10px; background: var(--paper); color: var(--ink); }
.rev__search input:focus { outline: none; border-color: var(--coral); background: var(--white); }
.rev__count, .rev__none { font-size: 13.5px; color: var(--ink-mute); padding: 14px 12px 6px; }
.rev__list a.rev__hit { display: grid; grid-template-columns: 1fr; gap: 3px; }
.rev__hit-t { font-weight: 600; color: var(--ink); }
.rev__hit-s { font: 400 13px/1.45 var(--font-body); color: var(--ink-mute); }
.rev__list a.rev__hit[aria-current="page"] .rev__hit-t { color: #fff; }
.rev__list a.rev__hit[aria-current="page"] .rev__hit-s { color: var(--on-navy-mute); }
mark { background: #FFE3DC; color: inherit; border-radius: 3px; padding: 0 2px; }
.rev__list a.rev__hit[aria-current="page"] mark { background: var(--coral); color: var(--navy); }
.nexttopic { display: inline-flex; align-items: center; gap: 14px; margin-top: 54px; padding: 12px 22px 12px 12px; border-radius: 99px; background: var(--white); border: 1px solid #DCE5ED; text-decoration: none; color: var(--ink); transition: border-color .15s, transform .15s; }
.nexttopic:hover { border-color: var(--coral); transform: translateY(2px); }
.nexttopic__ico { width: 38px; height: 38px; border-radius: 50%; background: var(--coral-tint); color: var(--coral-deep); display: grid; place-items: center; flex: none; }
.nexttopic small { display: block; font: 600 12.5px var(--font-body); color: var(--ink-mute); }
.nexttopic b { font: 600 16px var(--font-body); }
.rev__list h4 { display: inline-block; font: 700 13px/1 var(--font-body); background: var(--coral-tint); color: var(--coral-deep); padding: 8px 16px; border-radius: 99px; margin: 24px 0 8px 12px; }
.rev__list a { display: grid; grid-template-columns: 28px 1fr; gap: 8px; padding: 9px 12px; border-radius: 9px; color: var(--ink-soft); text-decoration: none; font-size: 14.5px; line-height: 1.35; }
.rev__list a span:first-child { font: 600 12.5px var(--font-body); font-variant-numeric: tabular-nums; color: var(--ink-mute); padding-top: 2px; }
.rev__list a:hover { background: var(--paper); }
.rev__list a[aria-current="page"] { background: var(--navy); color: #fff; }
.rev__list a[aria-current="page"] span:first-child { color: var(--on-navy-mute); }
.rev__body { padding: 52px 64px 110px; min-width: 0; }
.read { max-width: 70ch; }
.read h1 { font-size: 40px; font-weight: 800; letter-spacing: -.02em; margin: 12px 0 28px; }
.read p { font-size: 18px; line-height: 1.75; margin-bottom: 1.15em; color: #2C3E50; text-wrap: pretty; }
.alerts { display: grid; gap: 14px; margin: 38px 0; }
.alert { background: var(--coral-tint); border-radius: 14px; padding: 20px 24px; }
.alert b { display: block; font: 700 14px var(--font-body); color: var(--coral-deep); margin-bottom: 6px; }
.alert p { margin: 0; font-size: 16.5px; line-height: 1.6; color: var(--ink); }
.read h3 { font-size: 24px; margin: 46px 0 16px; }
.fc-list { display: grid; gap: 10px; }
.fc-list details { background: var(--white); border: 1px solid #E1E8EF; border-radius: 12px; padding: 16px 20px; }
.fc-list summary { cursor: pointer; font-weight: 600; color: var(--ink); }
.fc-list details p { font-size: 16px; margin: 10px 0 0; }
.intro-card { padding: 32px 36px; max-width: 70ch; }
.lock { max-width: 560px; margin: 14vh auto; padding: 44px; text-align: center; }
.lock__logo { margin: 0 auto 20px; border-radius: 14px; }
.lock h1 { font-size: 32px; margin-bottom: 14px; }
.lock p { margin: 0 auto 26px; max-width: 30em; }
.lock .lock__note { margin: 22px auto 0; font-size: 14.5px; color: var(--ink-mute); }

@media (max-width: 1180px) {
  .page { padding: 36px 32px 80px; }
  .qgrid, .setup, .res { grid-template-columns: 1fr; }
  .expl, .res__score { position: static; }
  .examgrid { grid-template-columns: 1fr; }
  .navp { position: static; }
  .rev { grid-template-columns: 260px minmax(0, 1fr); }
  .rev__body { padding: 40px 36px 90px; }
}
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; padding: 14px 16px; gap: 12px; }
  .side__nav { display: flex; flex-wrap: wrap; } .side__account { display: none; }
  .rev { grid-template-columns: 1fr; } .rev__list { position: static; height: auto; max-height: 40vh; }
}
@media (prefers-reduced-motion: reduce) { .flash__in { transition: none; } }