/* Learning engine — isolated styles, uses the existing public theme variables */
.learning-page { background: var(--bg); }
.learning-page .container { max-width: 1180px; }
.learning-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr); gap: 20px; align-items: start; }
.learn-setup { padding: 24px; }
.learn-setup h2 { font-size: 25px; margin: 5px 0 7px; }
.learn-form { display: grid; gap: 15px; margin-top: 20px; }
.learn-form label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; color: var(--ink-2); }
.learn-form input[type="text"], .learn-form input[type="number"], .learn-form select {
  width: 100%; border: 1px solid var(--border); border-radius: 9px; background: #fff;
  padding: 10px 12px; color: var(--ink); font-weight: 400; outline: none;
}
.learn-form input:focus, .learn-form select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--ink-2); margin-bottom: 7px; }
.form-note { font-size: 11.5px; color: var(--muted); line-height: 1.7; }
.check-line { display: flex !important; align-items: center; gap: 8px !important; font-weight: 500 !important; }
.check-line input { accent-color: var(--primary); width: 16px; height: 16px; }
.chapter-picker { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; max-height: 280px; overflow: auto; padding: 4px; border: 1px solid var(--border-soft); border-radius: 10px; background: #fcfbf9; }
.chapter-chip { display: flex !important; align-items: flex-start; gap: 7px !important; padding: 8px; border: 1px solid transparent; border-radius: 8px; cursor: pointer; font-weight: 400 !important; background: #fff; }
.chapter-chip:hover { border-color: var(--border); }
.chapter-chip:has(input:checked) { border-color: var(--primary); background: var(--primary-tint); }
.chapter-chip input { margin-top: 3px; accent-color: var(--primary); flex: none; }
.chapter-chip span { display: grid; gap: 2px; min-width: 0; }
.chapter-chip b { font-size: 12px; line-height: 1.4; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.chapter-chip small { font-size: 10.5px; color: var(--muted); }
.learn-side { display: grid; gap: 16px; position: sticky; top: 16px; }
.learn-side .detail-card { padding: 20px; }
.plan-notice { background: linear-gradient(135deg, #fff5eb, #fff); border: 1px solid #f4d6bd; border-radius: var(--radius); padding: 17px; display: grid; grid-template-columns: auto 1fr; gap: 11px; align-items: start; }
.plan-notice-ico { width: 40px; height: 40px; border-radius: 11px; background: var(--primary-soft); color: var(--primary-dark); display: grid; place-items: center; }
.plan-notice b { font-size: 13.5px; }
.plan-notice p { color: var(--muted); font-size: 12px; line-height: 1.65; margin-top: 3px; }
.plan-notice .btn { grid-column: 1 / -1; justify-self: start; margin-top: 3px; }
.course-learn-actions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; margin-top: 7px; }
.course-learn-actions .btn { padding: 8px 4px; font-size: 10.5px; gap: 4px; white-space: normal; line-height: 1.3; }
.course-learn-actions .icon { width: 12px; }

/* home */
.learn-home { background: linear-gradient(180deg, #f6fbf8, var(--bg)); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
.feature-tile { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; display: flex; flex-direction: column; gap: 7px; transition: transform .18s, box-shadow .18s, border-color .18s; }
.feature-tile:hover { transform: translateY(-3px); border-color: #bfe2d2; box-shadow: var(--shadow-sm); }
.feature-ico { width: 42px; height: 42px; border-radius: 11px; background: var(--green-soft); color: var(--primary); display: grid; place-items: center; margin-bottom: 2px; }
.feature-tile b { font-size: 14.5px; }
.feature-tile p { color: var(--muted); font-size: 12px; line-height: 1.7; flex: 1; }
.feature-link { color: var(--primary); font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.learn-strip { display: flex; align-items: center; gap: 26px; background: #0d3d30; color: #fff; border-radius: var(--radius); padding: 18px 22px; margin-top: 20px; flex-wrap: wrap; }
.learn-strip > div { display: flex; flex-direction: column; line-height: 1.2; }
.learn-strip b { font-size: 22px; }
.learn-strip span { font-size: 11px; color: rgba(255,255,255,.65); margin-top: 3px; }
.learn-strip-action { margin-left: auto; flex-direction: row !important; align-items: center; gap: 12px; }
.learn-strip-action a:not(.btn) { color: #a7f3d0; font-size: 12px; text-decoration: underline; text-underline-offset: 3px; }
.daily-line { display: flex; align-items: center; gap: 12px; margin-top: 12px; color: var(--muted); font-size: 12px; flex-wrap: wrap; }
.daily-line a { color: var(--primary); font-weight: 600; }
.daily-bar { height: 8px; background: #e7eee9; border-radius: 99px; overflow: hidden; flex: 1; min-width: 120px; }
.daily-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), #55c99b); border-radius: inherit; transition: width .3s; }
.daily-bar.big { height: 12px; }

/* plans */
.plan-toolbar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.plan-tabs, .billing-toggle { display: inline-flex; background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 4px; gap: 3px; }
.plan-tabs a, .billing-toggle a { padding: 8px 15px; border-radius: 7px; font-size: 12.5px; font-weight: 600; color: var(--muted); }
.plan-tabs a.active, .billing-toggle a.active { background: var(--primary); color: #fff; }
.plan-toolbar > .btn { margin-left: auto; }
.active-plan { display: flex; align-items: center; justify-content: space-between; gap: 14px; background: #fff; border: 1px solid var(--border); border-left: 4px solid var(--primary); border-radius: var(--radius); padding: 15px 18px; margin-bottom: 18px; }
.active-plan.free { border-left-color: #a1a1aa; }
.active-plan > div { display: flex; flex-direction: column; }
.active-plan-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: .7px; color: var(--muted); }
.active-plan b { font-size: 17px; }
.active-plan small { color: var(--muted); font-size: 11.5px; }
.plan-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; align-items: stretch; }
.plan-card { position: relative; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 17px; display: flex; flex-direction: column; gap: 8px; }
.plan-card.featured { border-color: var(--primary); box-shadow: 0 12px 30px rgba(15,143,106,.1); }
.plan-badge { position: absolute; top: -10px; right: 12px; background: var(--primary); color: #fff; font-size: 10px; font-weight: 700; padding: 3px 8px; border-radius: 99px; }
.plan-card h3 { font-size: 16px; }
.plan-tagline { color: var(--muted); font-size: 11.5px; min-height: 34px; }
.plan-price { display: flex; align-items: baseline; gap: 4px; margin-top: 2px; }
.plan-price b { font-size: 27px; color: var(--primary-dark); }
.plan-price span { font-size: 11px; color: var(--muted); }
.plan-save { font-size: 10.5px; font-weight: 600; color: var(--green); background: var(--green-soft); border-radius: 5px; padding: 3px 7px; align-self: flex-start; }
.plan-features { display: grid; gap: 6px; margin: 4px 0 12px; flex: 1; }
.plan-features li { display: flex; gap: 6px; font-size: 11.5px; color: var(--ink-2); line-height: 1.5; }
.plan-features .icon { color: var(--green); margin-top: 2px; }
.learning-note { margin: 18px 0; display: flex; gap: 8px; align-items: flex-start; background: #fff; border: 1px dashed var(--border); border-radius: 10px; padding: 12px 14px; font-size: 11.5px; color: var(--muted); line-height: 1.7; }
.plan-table-wrap { overflow-x: auto; margin-top: 12px; }
.plan-table { width: 100%; border-collapse: collapse; font-size: 12px; min-width: 600px; }
.plan-table th, .plan-table td { border-bottom: 1px solid var(--border-soft); padding: 10px 9px; text-align: left; }
.plan-table th { background: #faf8f5; font-size: 11px; color: var(--muted); }
.plan-table td:not(:first-child) { text-align: center; }
.order-list { margin-top: 12px; display: grid; gap: 7px; }
.order-row { display: grid; grid-template-columns: 1fr auto; gap: 3px 12px; padding: 9px 11px; border: 1px solid var(--border-soft); border-radius: 8px; font-size: 12px; }
.order-row b { color: var(--primary-dark); }
.order-row small { color: var(--muted); grid-column: 1 / -1; font-size: 10.5px; }

/* checkout */
.checkout-box { display: grid; gap: 10px; }
.checkout-line { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px dashed var(--border); padding-bottom: 8px; font-size: 13px; }
.checkout-line b { color: var(--primary-dark); }
.checkout-label { font-size: 12px; font-weight: 600; margin-top: 3px; }
.checkout-coupon { display: flex; gap: 7px; }
.checkout-coupon input { flex: 1; border: 1px solid var(--border); border-radius: 8px; padding: 9px 11px; outline: none; }
.checkout-coupon input:focus { border-color: var(--primary); }

/* sessions */
.learning-loading { min-height: 280px; display: grid; place-items: center; align-content: center; gap: 10px; color: var(--muted); font-size: 13px; }
.learning-loading .icon { animation: learn-spin 1.1s linear infinite; }
@keyframes learn-spin { to { transform: rotate(360deg); } }
.session-top, .mock-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; margin-bottom: 10px; flex-wrap: wrap; }
.session-top h2, .mock-top h2 { font-size: 23px; margin-top: 3px; }
.session-top-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.session-progress { height: 7px; background: #e5eee8; border-radius: 99px; overflow: hidden; margin-bottom: 16px; }
.session-progress i { display: block; height: 100%; background: var(--primary); border-radius: inherit; transition: width .25s; }
.session-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); }
.session-card h3 { font-size: 18px; line-height: 1.65; margin-bottom: 16px; }
.option-list { display: grid; gap: 8px; }
.option-btn { display: flex; align-items: flex-start; gap: 10px; width: 100%; text-align: left; background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; cursor: pointer; color: var(--ink-2); font-size: 14px; line-height: 1.6; transition: .16s; }
.option-btn:hover:not(:disabled):not(.static) { border-color: var(--primary); background: var(--primary-tint); }
.option-btn:disabled { cursor: default; opacity: .9; }
.option-btn.selected { border-color: var(--primary); background: var(--primary-tint); }
.option-btn.correct { border-color: var(--green); background: var(--green-soft); color: #166534; }
.option-btn.wrong { border-color: var(--red); background: var(--red-soft); color: #991b1b; }
.option-btn.static { cursor: default; }
.option-label { width: 24px; height: 24px; flex: none; border-radius: 50%; display: grid; place-items: center; background: #f3f1ed; color: var(--muted); font-size: 11px; font-weight: 700; margin-top: 1px; }
.option-btn.correct .option-label { background: var(--green); color: #fff; }
.option-btn.wrong .option-label { background: var(--red); color: #fff; }
.option-list.compact .option-btn { padding: 8px 10px; font-size: 12px; }
.feedback { margin-top: 14px; border-radius: 10px; padding: 12px 14px; font-size: 12.5px; line-height: 1.7; }
.feedback.ok { background: var(--green-soft); border: 1px solid #b7ebc8; color: #166534; }
.feedback.bad { background: var(--red-soft); border: 1px solid #fecaca; color: #991b1b; }
.feedback p { margin-top: 4px; color: var(--ink-2); }
.session-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; flex-wrap: wrap; }
.session-actions .muted { font-size: 12px; }

/* mock */
.mock-clock { background: #0d3d30; color: #fff; border-radius: 10px; padding: 8px 15px; text-align: center; min-width: 112px; }
.mock-clock span { display: block; font-size: 10px; color: rgba(255,255,255,.65); }
.mock-clock b { font-size: 22px; letter-spacing: .05em; font-variant-numeric: tabular-nums; }
.mock-top-actions { margin-left: auto; }
.mock-layout { display: grid; grid-template-columns: minmax(0, 1fr) 265px; gap: 16px; align-items: start; }
.mock-main { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-sm); }
.mock-main h3 { font-size: 17.5px; line-height: 1.7; margin: 13px 0 15px; }
.mock-q-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 11px; }
.mock-actions { display: flex; gap: 8px; justify-content: space-between; margin-top: 17px; flex-wrap: wrap; }
.mock-side { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; position: sticky; top: 16px; }
.mock-side-head { display: flex; justify-content: space-between; gap: 8px; font-size: 12px; margin-bottom: 10px; }
.mock-side-head span { color: var(--muted); }
.palette { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.palette-btn { height: 34px; border: 1px solid var(--border); border-radius: 7px; background: #fff; color: var(--ink-2); font-size: 11px; font-weight: 600; cursor: pointer; }
.palette-btn.current { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-soft); }
.palette-btn.answered { background: var(--green-soft); border-color: #b7ebc8; color: #166534; }
.palette-btn.marked { background: var(--amber-soft); border-color: #fde3b3; color: #92400e; }
.palette-btn.current.marked, .palette-btn.current.answered { outline: 2px solid var(--primary); outline-offset: 1px; }
.mock-legend { display: flex; gap: 9px; align-items: center; flex-wrap: wrap; font-size: 10px; color: var(--muted); margin-top: 12px; }
.legend { width: 9px; height: 9px; border-radius: 2px; display: inline-block; }
.legend.current { border: 2px solid var(--primary); }
.legend.answered { background: var(--green-soft); border: 1px solid #b7ebc8; }
.legend.marked { background: var(--amber-soft); border: 1px solid #fde3b3; }
.mock-side-note { border-top: 1px dashed var(--border); margin-top: 13px; padding-top: 10px; font-size: 10.5px; color: var(--muted); line-height: 1.7; }

/* results */
.result-hero { background: #0d3d30; color: #fff; border-radius: var(--radius); padding: 26px; margin-bottom: 16px; }
.result-hero .kicker { color: #a7f3d0; }
.result-hero h2 { font-size: 21px; margin: 5px 0 14px; }
.result-score b { font-size: 52px; line-height: 1; letter-spacing: -.04em; }
.result-score span { font-size: 17px; color: rgba(255,255,255,.6); margin-left: 5px; }
.result-badges { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 13px; }
.result-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 16px; margin-bottom: 16px; }
.result-grid .detail-card { padding: 20px; }
.result-actions-card p { margin: 7px 0 14px; }
.weak-row { display: grid; grid-template-columns: minmax(140px, 1.3fr) 1fr 40px; gap: 10px; align-items: center; padding: 9px 0; border-bottom: 1px solid var(--border-soft); font-size: 12px; }
.weak-row:last-child { border-bottom: 0; }
.weak-row > div:first-child { display: grid; gap: 1px; min-width: 0; }
.weak-row b { font-size: 12px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.weak-row small { color: var(--muted); font-size: 10px; }
.weak-bar { height: 7px; background: #eeeae5; border-radius: 99px; overflow: hidden; }
.weak-bar i { display: block; height: 100%; background: linear-gradient(90deg, #ef8c5b, var(--primary)); border-radius: inherit; }
.weak-row > span { text-align: right; color: var(--muted); font-size: 11px; }
.review-list { display: grid; gap: 8px; margin-top: 12px; }
.review-item { border: 1px solid var(--border-soft); border-radius: 9px; overflow: hidden; }
.review-item summary { display: flex; justify-content: space-between; gap: 12px; padding: 10px 12px; cursor: pointer; font-size: 12.5px; background: #fcfbf9; }
.review-item summary > span:first-child { min-width: 0; }
.review-status { flex: none; font-size: 10px; font-weight: 700; border-radius: 5px; padding: 2px 6px; height: fit-content; }
.review-status.ok { background: var(--green-soft); color: #166534; }
.review-status.bad { background: var(--red-soft); color: #991b1b; }
.review-body { padding: 12px; display: grid; gap: 10px; }
.review-explain { font-size: 12px; color: var(--ink-2); background: #faf8f5; border-left: 3px solid var(--primary); padding: 9px 11px; border-radius: 0 7px 7px 0; line-height: 1.7; }

/* vault */
.vault-head, .progress-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 18px; margin-bottom: 16px; flex-wrap: wrap; }
.vault-head h2, .progress-head h2 { font-size: 24px; margin: 3px 0 4px; }
.vault-stats { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.vault-stats > div { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 10px 18px; display: grid; gap: 1px; }
.vault-stats b { font-size: 21px; color: var(--primary-dark); }
.vault-stats span { font-size: 10.5px; color: var(--muted); }
.vault-filter { margin-bottom: 14px; }
.vault-filter label { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; }
.vault-filter select, .card-head select { border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px; background: #fff; max-width: 360px; }
.vault-list { display: grid; gap: 12px; }
.vault-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 17px; }
.vault-card.resolved { opacity: .68; }
.vault-card-head { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin-bottom: 9px; }
.vault-wrong { margin-left: auto; font-size: 10.5px; color: var(--red); font-weight: 600; }
.vault-card h3 { font-size: 14.5px; line-height: 1.65; margin-bottom: 10px; }
.vault-actions { margin-top: 10px; }

/* progress */
.progress-stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 11px; margin-bottom: 14px; }
.progress-stat-grid > div { background: #fff; border: 1px solid var(--border); border-radius: 11px; padding: 13px 15px; display: grid; gap: 1px; }
.progress-stat-grid span { font-size: 10.5px; color: var(--muted); }
.progress-stat-grid b { font-size: 24px; color: var(--ink); }
.progress-stat-grid small { font-size: 10px; color: var(--muted); }
.daily-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 15px 17px; margin-bottom: 14px; }
.daily-card-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 9px; flex-wrap: wrap; }
.daily-card-head > div:first-child { display: grid; gap: 1px; }
.daily-card-head b { font-size: 14px; }
.daily-card-head span { font-size: 11px; color: var(--muted); }
.daily-card > small { display: block; color: var(--muted); font-size: 10.5px; margin-top: 6px; }
.goal-buttons { display: flex; gap: 4px; }
.goal-buttons button { border: 1px solid var(--border); background: #fff; border-radius: 6px; padding: 4px 8px; font-size: 10.5px; cursor: pointer; color: var(--muted); }
.goal-buttons button.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.progress-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.progress-grid .detail-card { padding: 19px; }
.card-head { display: flex; justify-content: space-between; gap: 10px; align-items: center; margin-bottom: 10px; flex-wrap: wrap; }
.card-head h3 { margin: 0; }
.attempt-list { display: grid; gap: 7px; }
.attempt-row { border: 1px solid var(--border-soft); border-radius: 8px; overflow: hidden; }
.attempt-row summary { display: flex; justify-content: space-between; gap: 10px; padding: 9px 11px; cursor: pointer; background: #fcfbf9; }
.attempt-row summary > span:first-child { display: grid; gap: 1px; min-width: 0; }
.attempt-row b { font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.attempt-row small { font-size: 10px; color: var(--muted); }
.attempt-score { color: var(--primary-dark); font-size: 12px; font-weight: 700; white-space: nowrap; }
.attempt-review { padding: 10px; display: grid; gap: 5px; }
.attempt-q { font-size: 11px; line-height: 1.6; color: var(--ink-2); }
.danger-zone { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 17px 19px; border-color: #fecaca; background: #fffafa; flex-wrap: wrap; }
.danger-zone h3 { font-size: 14px; }
.danger-zone p { font-size: 11.5px; margin-top: 2px; max-width: 620px; }

/* paper */
.paper-toolbar { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.paper-toolbar > div:first-child { display: flex; gap: 8px; align-items: center; }
.paper-sheet { background: #fff; border: 1px solid #ddd; border-radius: 4px; box-shadow: 0 10px 30px rgba(0,0,0,.08); padding: 34px 38px; max-width: 1000px; margin: 0 auto 22px; color: #111; }
.paper-head { text-align: center; border-bottom: 2px solid #111; padding-bottom: 12px; margin-bottom: 17px; }
.paper-inst { font-size: 12px; font-weight: 600; letter-spacing: .3px; }
.paper-head h1 { font-size: 22px; margin: 3px 0 7px; }
.paper-meta { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; font-size: 11px; font-weight: 600; }
.paper-questions { padding-left: 0; list-style: none; margin: 0; }
.paper-q { break-inside: avoid; margin-bottom: 15px; font-size: 13px; line-height: 1.75; }
.paper-q-text { margin-bottom: 4px; }
.paper-options { display: flex; flex-wrap: wrap; gap: 2px 22px; color: #333; font-size: 12px; }
.paper-answers { border-top: 2px dashed #111; margin-top: 18px; padding-top: 12px; break-before: page; }
.paper-answers h2 { font-size: 15px; text-align: center; margin-bottom: 8px; }
.answer-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px 14px; font-size: 12px; }
.cols-2 .paper-questions { column-count: 2; column-gap: 34px; }
.cols-2 .paper-answers { column-span: all; }
.poster-preview { background: #f5f1ec; border-radius: 10px; padding: 10px; }
.poster-preview img { width: 100%; max-width: 420px; margin: 0 auto; border-radius: 6px; }

@media (max-width: 980px) {
  .plan-grid { grid-template-columns: repeat(2, 1fr); }
  .learning-grid, .mock-layout, .result-grid { grid-template-columns: 1fr; }
  .learn-side, .mock-side { position: static; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .progress-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .plan-grid, .feature-grid, .form-row, .chapter-picker, .progress-stat-grid { grid-template-columns: 1fr; }
  .plan-grid { gap: 18px; }
  .plan-toolbar > .btn { margin-left: 0; }
  .learn-strip { gap: 15px; }
  .learn-strip-action { margin-left: 0; width: 100%; }
  .session-card, .mock-main, .paper-sheet { padding: 16px; }
  .cols-2 .paper-questions { column-count: 1; }
  .answer-grid { grid-template-columns: repeat(3, 1fr); }
  .weak-row { grid-template-columns: 1fr 40px; }
  .weak-row .weak-bar { grid-column: 1 / -1; grid-row: 2; }
  .mock-clock { min-width: 95px; }
  .palette { grid-template-columns: repeat(6, 1fr); }
}
@media print {
  .site-top, .site-header, .site-footer, .mobile-nav, .paper-toolbar, .plan-notice, .learning-note, .session-actions, .btn { display: none !important; }
  body { background: #fff !important; }
  .learning-page { background: #fff !important; }
  .learning-page .container { max-width: none; width: 100%; padding: 0; }
  .paper-sheet { border: 0; box-shadow: none; padding: 0; margin: 0; max-width: none; }
  .paper-answers { break-before: page; }
  @page { margin: 14mm; }
}