:root {
  color-scheme: dark;
  --bg: #101114;
  --surface: #17181d;
  --surface-raised: #1e2026;
  --border: #2b2d34;
  --text: #e8e8ed;
  --muted: #a0a1af;
  --subtle: #6f7282;
  --accent: #c7ed82;
  --purple: #c5b6ef;
  --red: #f4a1a9;
  --radius: 18px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.55; }
button, input, select, textarea { font: inherit; }
button, a, input, textarea, select, summary { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled { cursor: default; opacity: .45; }
button, input, select, textarea { border: 1px solid var(--border); }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
p { margin: 0 0 14px; }
h1, h2, h3 { font-weight: 600; line-height: 1.18; letter-spacing: -.035em; }
h1 { margin: 10px 0 16px; font-size: clamp(32px, 4vw, 50px); }
h2 { margin: 0 0 14px; font-size: 25px; }
h3 { margin: 0 0 10px; font-size: 19px; }
small { font-size: 12px; }
pre, code, textarea.editor { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
pre { margin: 15px 0 0; padding: 20px; border: 1px solid var(--border); border-radius: 12px; background: #121318; overflow: auto; white-space: pre; font-size: 13px; line-height: 1.8; tab-size: 4; }
code { color: #d5c8f4; }
label { display: block; }
ul { padding-left: 22px; }
[hidden] { display: none !important; }
.skip-link { position: fixed; top: -70px; left: 20px; z-index: 10; padding: 12px; background: var(--surface); }
.skip-link:focus { top: 15px; }
.app-shell { display: grid; grid-template-columns: 246px minmax(0, 1fr); min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; overflow-y: auto; display: flex; flex-direction: column; padding: 28px 20px 24px; border-right: 1px solid var(--border); background: #141519; }
.brand { display: flex; align-items: center; gap: 12px; padding: 0 0 28px; background: transparent; border: 0; text-align: left; color: var(--text); font-size: 14px; font-weight: 600; }
.brand small { display: block; margin-top: 3px; color: var(--muted); font-weight: 400; }
.brand-symbol { display: grid; place-items: center; width: 41px; height: 41px; border-radius: 11px; background: var(--accent); color: #1a2411; font-size: 18px; font-weight: 700; position: relative; font-family: monospace; }
.brand-symbol span { position: absolute; bottom: 6px; right: 8px; }
.sidebar-caption { font-size: 10px; font-weight: 600; letter-spacing: .15em; color: var(--subtle); margin: 8px 12px 10px; }
.module-caption { margin-top: 31px; }
#primary-nav, #module-nav { display: flex; flex-direction: column; gap: 5px; }
.nav-item { display: flex; align-items: center; gap: 10px; width: 100%; background: transparent; border: 0; color: var(--muted); padding: 11px 12px; border-radius: 9px; text-align: left; font-size: 13px; line-height: 1.4; }
.nav-item:hover { background: #202127; color: var(--text); }
.nav-item.active { background: #283022; color: var(--accent); }
.nav-icon { width: 19px; height: 19px; display: grid; place-items: center; font-size: 18px; }
.nav-count { margin-left: auto; padding: 1px 7px; border-radius: 5px; color: var(--muted); background: #282a31; font-size: 11px; }
.module-num { font-family: monospace; font-size: 11px; color: var(--subtle); width: 20px; flex-shrink: 0; }
.module-title { flex: 1; }
.module-complete { color: var(--accent); font-size: 12px; }
.sidebar-foot { display: flex; align-items: flex-start; gap: 7px; color: var(--muted); font-size: 11px; margin-top: auto; padding: 28px 8px 0; }
.sidebar-foot small { display: block; color: var(--subtle); font-size: 10px; padding-top: 4px; }
.status-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); display: inline-block; flex-shrink: 0; margin-top: 7px; }
.workspace { min-width: 0; }
.topbar { display: flex; justify-content: space-between; align-items: center; padding: 22px 44px; border-bottom: 1px solid var(--border); }
.eyebrow { font-size: 10px; font-weight: 700; letter-spacing: .15em; color: var(--muted); }
.local-label { margin-left: 18px; color: var(--subtle); font-size: 12px; }
.topbar-right { display: flex; align-items: center; gap: 18px; color: var(--muted); font-size: 12px; }
.avatar { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: #302a3f; color: var(--purple); font-size: 10px; }
main { max-width: 1420px; margin: 0 auto; padding: 40px 44px 70px; }
.loading-card { padding: 36px; border-radius: var(--radius); background: var(--surface); }
.hero { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; margin-bottom: 30px; }
.hero p { color: var(--muted); max-width: 530px; font-size: 15px; line-height: 1.75; }
.hero .eyebrow { color: var(--accent); }
.hero-highlight { color: var(--accent); }
.hero-time { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 122px; height: 122px; border-radius: 50%; border: 1px solid #4b5e37; box-shadow: inset 0 0 0 9px #1d2319; margin-right: 16px; }
.hero-time strong { font-size: 42px; font-weight: 500; line-height: 1; letter-spacing: -.045em; color: var(--accent); }
.hero-time span { font-size: 11px; color: var(--muted); margin-top: 6px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 17px; border-radius: 9px; color: var(--text); background: #24262d; font-size: 13px; font-weight: 500; line-height: 1.4; text-decoration: none; }
.btn:hover { background: #2e3038; }
.btn.primary { background: var(--accent); color: #17200e; border-color: var(--accent); font-weight: 600; }
.btn.primary:hover { background: #d4f2a1; }
.btn.ghost { background: transparent; }
.btn.small { font-size: 12px; padding: 7px 11px; }
.btn.danger { color: var(--red); }
.button-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 30px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; }
.stat strong { display: block; font-weight: 500; font-size: 29px; letter-spacing: -.05em; line-height: 1.3; }
.stat small { display: block; color: var(--muted); margin-top: 5px; font-size: 11px; }
.section-heading { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 10px; margin: 30px 0 15px; }
.section-heading h2 { font-size: 20px; margin: 0; }
.section-heading p { color: var(--muted); font-size: 12px; margin: 0; }
.daily-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; }
.card { border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; background: var(--surface); min-width: 0; }
.card p { color: var(--muted); font-size: 13px; }
.daily-card { background: linear-gradient(130deg, #252d20, #1a1e19 68%); border-color: #3b4631; }
.daily-card .eyebrow { color: var(--accent); }
.daily-card h3 { font-size: 24px; max-width: 440px; margin-top: 10px; }
.session-steps { margin: 24px 0 4px; display: flex; gap: 14px; border-top: 1px solid #35412b; padding-top: 17px; }
.session-step { flex: 1; color: var(--muted); font-size: 10px; }
.session-step strong { display: block; font-size: 13px; color: #dde4d4; margin-bottom: 4px; font-weight: 500; }
.review-card { position: relative; overflow: hidden; }
.review-card .eyebrow { color: var(--purple); }
.review-card h3 { margin-top: 10px; }
.review-schedule { display: flex; gap: 8px; margin: 20px 0; }
.review-schedule span { padding: 7px 13px; font-size: 12px; border: 1px solid #40364f; border-radius: 7px; color: var(--purple); background: #25212c; }
.module-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.module-card { position: relative; padding: 20px; display: flex; flex-direction: column; }
.module-card .module-num { display: inline-block; width: auto; font-size: 11px; color: var(--accent); margin-bottom: 12px; }
.module-card h3 { font-size: 16px; line-height: 1.4; letter-spacing: -.02em; }
.module-card p { color: var(--muted); font-size: 12px; margin-bottom: 20px; flex: 1; }
progress { width: 100%; height: 4px; appearance: none; border: 0; border-radius: 8px; background: #30323a; overflow: hidden; }
progress::-webkit-progress-bar { background: #30323a; }
progress::-webkit-progress-value { background: var(--accent); }
progress::-moz-progress-bar { background: var(--accent); }
.module-card footer { margin-top: 11px; display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--muted); }
.module-card footer .btn { padding: 5px 8px; font-size: 11px; }
.notice { padding: 14px 18px; border-radius: 10px; background: #26231d; border: 1px solid #49412e; color: #d9cba9; font-size: 12px; margin: 0 0 24px; }
.notice.info { background: #20232b; border-color: #343d51; color: #bdc8e2; }
.page-head { margin-bottom: 27px; }
.page-head h1 { font-size: 34px; }
.page-head p { color: var(--muted); max-width: 720px; font-size: 14px; }
.page-head .eyebrow { color: var(--accent); }
.theory-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.theory-card { padding: 24px; }
.theory-card h3 { font-size: 18px; }
.theory-card .prose { white-space: pre-wrap; color: #c8c9d2; line-height: 1.85; font-size: 14px; }
.theory-card pre { font-size: 12px; }
.objectives { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 0; padding: 0; list-style: none; }
.objectives li { background: #252a20; border: 1px solid #38412f; border-radius: 6px; padding: 5px 9px; font-size: 11px; color: #c5d3b4; }
.filters { display: grid; grid-template-columns: 1.8fr repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.filter label { font-size: 11px; color: var(--muted); margin: 0 0 5px; }
.filters input, .filters select { width: 100%; padding: 10px 12px; border-radius: 8px; color: var(--text); background: var(--surface); font-size: 12px; }
.task-list { display: flex; flex-direction: column; gap: 10px; }
.task-row { display: grid; grid-template-columns: 43px 1fr auto; align-items: center; gap: 16px; padding: 17px 20px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); }
.kind-symbol { display: grid; place-items: center; width: 38px; height: 38px; background: #272532; border: 1px solid #383245; border-radius: 9px; color: var(--purple); font-family: monospace; font-size: 13px; }
.task-row h3 { margin: 0 0 6px; font-size: 14px; letter-spacing: -.015em; line-height: 1.4; }
.task-meta { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 10px; }
.pill { border: 1px solid var(--border); border-radius: 5px; padding: 2px 6px; display: inline-block; font-size: 10px; line-height: 1.5; color: var(--muted); }
.pill.success { background: #252d20; border-color: #3b4930; color: var(--accent); }
.pill.help { background: #2d2736; border-color: #453951; color: var(--purple); }
.pill.error { background: #36242a; border-color: #53323c; color: var(--red); }
.empty { text-align: center; color: var(--muted); padding: 38px 24px; border: 1px dashed var(--border); border-radius: 12px; font-size: 13px; }
.task-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 25px; }
.task-toolbar .back-button { margin-right: auto; }
.task-layout { display: grid; grid-template-columns: minmax(280px, .88fr) minmax(340px, 1.12fr); gap: 22px; align-items: start; }
.task-layout.question-layout { grid-template-columns: minmax(280px, 1fr) minmax(340px, 1fr); }
.task-statement h1 { font-size: 28px; margin-top: 10px; }
.task-statement .statement { white-space: pre-wrap; color: #c5c6cf; line-height: 1.8; font-size: 14px; }
.task-statement .task-meta { margin: 18px 0; }
.task-practice { position: sticky; top: 22px; }
.editor-card { background: #16171c; padding: 0; overflow: hidden; }
.editor-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 13px 18px; border-bottom: 1px solid var(--border); color: var(--muted); font-size: 11px; }
.editor-filename { display: flex; align-items: center; gap: 8px; }
.editor-filename span { color: var(--accent); font-family: monospace; }
.editor { display: block; resize: vertical; width: 100%; min-height: 260px; background: #15161b; color: #d8cbed; padding: 20px; border: 0; border-radius: 0; font-size: 13px; line-height: 1.85; tab-size: 4; }
.editor:focus-visible { outline: 1px solid #52653d; outline-offset: -2px; }
.editor-footer { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 18px; border-top: 1px solid var(--border); }
.editor-footer small { color: var(--subtle); font-size: 10px; }
.editor-footer .button-row { margin: 0; }
.runtime-status { padding: 10px 18px; background: #1e2025; color: var(--muted); font-size: 11px; border-top: 1px solid var(--border); }
.runtime-status .btn { margin-left: 8px; }
.question-card { padding: 23px; }
.question-card h2 { font-size: 18px; }
.options { margin: 20px 0; display: grid; gap: 10px; }
.option { display: flex; gap: 11px; align-items: baseline; text-align: left; width: 100%; border: 1px solid var(--border); color: #d5d6df; border-radius: 10px; background: #202127; padding: 14px; font-size: 13px; line-height: 1.6; cursor: pointer; }
.option:hover { border-color: #666c59; }
.option.selected { background: #293023; border-color: #6c8551; }
.option input { accent-color: var(--accent); margin: 0; flex-shrink: 0; }
.option span { white-space: pre-wrap; font-family: monospace; font-size: 12px; overflow-wrap: anywhere; }
.answer-field { width: 100%; min-height: 92px; padding: 13px; border-radius: 9px; color: var(--text); background: #121318; font-family: monospace; font-size: 13px; margin: 12px 0; }
.feedback { border: 1px solid #465337; border-radius: 12px; background: #222a1d; padding: 20px; margin-top: 16px; }
.feedback.error { background: #2a2025; border-color: #50323b; }
.feedback.neutral { background: #21212b; border-color: #39384b; }
.feedback h3 { color: var(--accent); font-size: 15px; letter-spacing: 0; }
.feedback.error h3 { color: var(--red); }
.feedback.neutral h3 { color: var(--purple); }
.feedback p { white-space: pre-wrap; color: #c9ced0; font-size: 13px; line-height: 1.8; }
.feedback pre { margin-top: 8px; font-size: 11px; max-height: 250px; }
.test-results { display: grid; gap: 8px; margin-top: 12px; }
.test-result { background: #17191a; border-radius: 8px; padding: 12px; font-size: 11px; line-height: 1.7; }
.test-result p { font-size: 11px; margin: 2px 0; color: var(--muted); overflow-wrap: anywhere; }
.test-result strong { color: var(--accent); }
.test-result.failed strong { color: var(--red); }
.test-result code { white-space: pre-wrap; overflow-wrap: anywhere; }
.helpers { display: grid; gap: 12px; margin-top: 20px; }
.helper-box { border: 1px solid var(--border); border-radius: 10px; padding: 14px 17px; background: var(--surface); }
.helper-box summary { cursor: pointer; font-size: 12px; color: var(--muted); }
.helper-box p, .helper-box li { font-size: 12px; color: #c5c5cf; white-space: pre-wrap; margin-top: 12px; }
.hint-text { margin: 12px 0 0; border-left: 2px solid var(--purple); padding-left: 11px; color: #c9bee0; font-size: 12px; line-height: 1.8; white-space: pre-wrap; }
.hints .btn { width: 100%; margin-top: 14px; }
.practice-note { color: var(--muted); font-size: 11px; margin: 16px 0; }
.source-item { padding: 14px 0; border-bottom: 1px solid var(--border); }
.source-item:last-child { border-bottom: 0; }
.source-item strong { display: block; font-size: 13px; font-weight: 500; }
.source-item p { margin: 5px 0 0; font-size: 11px; color: var(--muted); overflow-wrap: anywhere; }
.source-item a { display: inline-block; font-size: 11px; margin-top: 8px; }
.source-counts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 22px; }
.source-counts .stat { padding: 17px 18px; }
.source-notes { color: var(--muted); font-size: 13px; white-space: pre-wrap; line-height: 1.8; }
.progress-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.progress-list { padding: 0; list-style: none; }
.progress-list li { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); color: var(--muted); font-size: 12px; }
.progress-list strong { color: var(--text); font-weight: 500; }
.toast { position: fixed; bottom: 25px; left: 50%; transform: translateX(-50%); z-index: 12; padding: 13px 20px; border: 1px solid #526240; border-radius: 12px; background: #242f1c; color: #deebcf; font-size: 13px; box-shadow: 0 8px 38px #0007; max-width: 90vw; }
.noscript { padding: 20px; background: #352c1a; }
.brand[href] { text-decoration: none; }
.archive-list { display: grid; gap: 11px; margin-bottom: 20px; }
.archive-record { padding: 18px 20px; }
.archive-record summary { cursor: pointer; display: flex; gap: 12px; align-items: flex-start; }
.archive-record summary::before { content: "+"; color: var(--accent); margin-top: 1px; flex-shrink: 0; }
.archive-record[open] summary::before { content: "−"; }
.archive-record summary::-webkit-details-marker { display: none; }
.archive-record h3 { font-size: 14px; line-height: 1.6; letter-spacing: -.012em; overflow-wrap: anywhere; margin: 0 0 8px; }
.archive-record-body { padding: 20px 0 0 24px; }
.archive-record-body .notice { margin: 18px 0; }
.archive-record-body pre { max-height: 430px; }
.archive-record-body p { overflow-wrap: anywhere; }
.archive-record-body .eyebrow { margin-top: 18px; }
#archive-notes p { margin-top: 10px; margin-bottom: 0; }
#archive-nav { display: flex; flex-direction: column; gap: 5px; }
.sr-only { position: absolute; height: 1px; width: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (min-width: 1600px) { main { padding-top: 50px; } }
@media (max-width: 1160px) {
  .app-shell { grid-template-columns: 210px minmax(0,1fr); }
  .sidebar { padding: 26px 12px; }
  main { padding: 32px 26px 60px; }
  .topbar { padding: 20px 26px; }
  .module-grid { grid-template-columns: repeat(2,1fr); }
  .task-layout, .task-layout.question-layout { grid-template-columns: minmax(240px,1fr) minmax(290px,1fr); gap: 16px; }
  .session-steps { gap: 8px; }
}
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { height: auto; position: static; padding: 16px 22px; border-right: 0; border-bottom: 1px solid var(--border); }
  .brand { padding: 0 0 14px; }
  #primary-nav { flex-direction: row; flex-wrap: wrap; gap: 6px; }
  #archive-nav { flex-direction: row; flex-wrap: wrap; gap: 6px; }
  .nav-item { width: auto; padding: 9px 12px; }
  .sidebar-caption, #module-nav, .sidebar-foot { display: none; }
  .topbar { padding: 15px 26px; }
  .task-layout, .task-layout.question-layout { grid-template-columns: 1fr; }
  .task-practice { position: static; }
  .hero h1 { font-size: 38px; }
}
@media (max-width: 620px) {
  main { padding: 27px 18px 55px; }
  .topbar { padding: 13px 18px; }
  .local-label { display: none; }
  .sidebar { padding: 15px 18px; }
  .nav-item { padding: 8px 9px; font-size: 11px; gap: 5px; }
  .nav-icon { font-size: 15px; width: 15px; }
  .nav-count { padding: 0 4px; }
  .hero { display: block; }
  .hero h1 { font-size: 35px; }
  .hero-time { display: none; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 10px; }
  .stat { padding: 14px 16px; }
  .daily-grid, .module-grid, .theory-list, .progress-layout { grid-template-columns: 1fr; }
  .source-counts { grid-template-columns: repeat(2,1fr); }
  .filters { grid-template-columns: 1fr 1fr; }
  .task-row { grid-template-columns: 32px 1fr; gap: 12px; padding: 15px; }
  .task-row .btn { grid-column: 2; justify-self: start; padding: 6px 11px; }
  .kind-symbol { width: 31px; height: 31px; font-size: 11px; }
  .card { padding: 20px; }
  .page-head h1 { font-size: 30px; }
  .task-statement h1 { font-size: 27px; }
  .session-steps { gap: 9px; }
  .editor { font-size: 12px; min-height: 230px; }
  .editor-footer { padding: 12px; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }

body { padding-top: max(env(safe-area-inset-top), var(--tg-content-top, 0px)); }
#sync-status { background: transparent; border: 1px solid var(--border); border-radius: 18px; color: var(--accent); padding: 8px 12px; font-size: 11px; cursor: pointer; min-height: 38px; }
#sync-status[data-pending="true"] { color: var(--muted); }
.editor-shortcuts { display: flex; gap: 5px; padding: 8px 12px; border-bottom: 1px solid var(--border); overflow-x: auto; }
.editor-shortcuts .btn { min-width: 42px; min-height: 42px; padding: 7px 10px; flex-shrink: 0; }
.editor { tab-size: 4; font-size: 14px; }
.access-card { max-width: 640px; margin: 8vh auto; }
.access-card .btn { margin: 10px 10px 0 0; }
@media (max-width: 900px) {
  .sidebar { padding: 12px 20px; }
  .brand { padding-bottom: 0; }
  #primary-nav { position: fixed; bottom: 0; left: 0; right: 0; z-index: 20; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 2px; padding: 8px 8px calc(8px + max(env(safe-area-inset-bottom), var(--tg-content-bottom, 0px))); background: #1b1b24; border-top: 1px solid var(--border); }
  #primary-nav .nav-item { flex-direction: column; justify-content: center; gap: 2px; padding: 5px 0; width: 100%; min-height: 48px; font-size: 10px; position: relative; }
  #primary-nav .nav-icon { width: 22px; font-size: 20px; }
  #primary-nav .nav-count { position: absolute; right: 8px; top: 0; }
  main { padding-bottom: calc(105px + max(env(safe-area-inset-bottom), var(--tg-content-bottom, 0px))); }
  .toast { bottom: calc(90px + max(env(safe-area-inset-bottom), var(--tg-content-bottom, 0px))); }
  .topbar { padding: 12px 20px; }
  .topbar-right { gap: 8px; }
  #today-date, .avatar, .local-label { display: none; }
  #sync-status { max-width: 230px; font-size: 10px; }
  .btn, .option { min-height: 44px; }
  .editor { font-size: 16px; min-height: 260px; }
  .task-layout, .task-layout.question-layout { grid-template-columns: minmax(0, 1fr); }
  .task-statement, .task-practice { min-width: 0; }
  .task-statement h1 { overflow-wrap: anywhere; }
  .editor-header { font-size: 10px; }
  .editor-footer .button-row { width: 100%; }
  .editor-footer .primary { flex: 1; justify-content: center; }
}
@media (max-width: 380px) {
  .session-steps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 12px; }
}

.senior-invitation { display: flex; align-items: center; gap: 24px; margin-top: 26px; border-color: #55523f; }
.senior-invitation > div { min-width: 0; flex: 1; }
.senior-invitation p { margin-bottom: 0; }
.senior-session { margin-bottom: 28px; }
.senior-session .filter { max-width: 700px; margin: 20px 0; }
.senior-session .filter > span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.senior-session select { display: block; width: 100%; min-width: 0; padding: 12px; background: var(--surface-raised); color: var(--text); border-radius: 9px; }
.senior-timer { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin: 20px 0; padding: 18px; background: #20251a; }
.senior-timer > div { min-width: 0; }
.senior-session-title { display: block; margin: 5px 0; overflow-wrap: anywhere; }
.senior-time { display: block; font-size: 30px; color: var(--accent); font-variant-numeric: tabular-nums; }
.senior-timer p { margin-bottom: 0; }
.senior-scope { margin-top: 24px; }
.interview-practice { margin-top: 28px; }
.interview-prompt { font-size: 19px; color: var(--purple); }
.interview-notes { width: 100%; min-height: 140px; padding: 14px; margin: 8px 0 22px; color: var(--text); background: #121318; border-radius: 12px; resize: vertical; font-size: 16px; }
.interview-rubric { display: grid; gap: 10px; }
.interview-criterion { display: flex; gap: 12px; align-items: flex-start; min-height: 44px; cursor: pointer; }
.interview-criterion input { flex-shrink: 0; width: 19px; height: 19px; margin-top: 3px; accent-color: var(--accent); }
.practice-extra { margin: 25px 0; padding: 18px; border: 1px solid var(--border); border-radius: 14px; }
.practice-extra > summary { cursor: pointer; color: var(--muted); font-weight: 600; }
.practice-extra[open] > summary { margin-bottom: 20px; }
.practice-extra .module-grid { margin-top: 22px; }
.sidebar-theory > summary { cursor: pointer; text-transform: uppercase; margin-left: 0; padding: 8px 12px; }
.task-switches { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 16px 0 24px; }
.task-switches .practice-note { margin-bottom: 0; font-variant-numeric: tabular-nums; }
.task-primer, .task-examples { margin-top: 20px; }
.practice-search { width: 100%; margin: 8px 0 15px; padding: 14px; background: var(--surface); color: var(--text); border-radius: 12px; }
@media (max-width: 620px) {
  .senior-invitation, .senior-timer { flex-direction: column; align-items: stretch; }
  .task-switches .btn { font-size: 12px; padding: 9px; }
  .daily-card .button-row .btn { width: 100%; }
  .senior-session .button-row .btn { width: 100%; }
  .senior-session select { width: 100%; min-width: 0; text-overflow: ellipsis; }
}