/* ───────────── KNOWLEDGE (Öğren hub, dictionary, questions, myths, term popovers) ───────────── */

/* Inline term links + popover */
.term-link { display: inline; padding: 0; margin: 0; border: 0; background: none; font: inherit; color: inherit; cursor: help; text-decoration: underline dotted color-mix(in srgb, var(--brand) 70%, transparent); text-decoration-thickness: 1.5px; text-underline-offset: 3px; border-radius: 3px; }
.term-link:hover, .term-link[aria-expanded="true"] { color: var(--brand); background: var(--brand-soft); }
.term-pop { position: fixed; z-index: 140; display: grid; gap: 8px; padding: 14px 16px 14px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line-2); box-shadow: var(--shadow-lg); color: var(--ink-2); font-size: 13.5px; animation: popIn .16s ease-out; }
.term-pop .tp-head { display: flex; align-items: center; justify-content: space-between; }
.term-pop .tp-name { font: 800 17px/1.2 var(--font-head); color: var(--ink); }
.term-pop p { line-height: 1.5; }
.term-pop .tp-why { color: var(--ink-3); font-size: 12.5px; }
.term-pop .tp-why em { font-style: normal; font-weight: 800; color: var(--ink-2); }
.term-pop .tp-foot { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }
.tp-cat { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; color: var(--c); }
.tp-cat .i { width: 14px; height: 14px; }
@keyframes popIn { from { opacity: 0; transform: translateY(4px) scale(.98); } to { opacity: 1; transform: none; } }

/* Category chip used everywhere in the dictionary */
.tcat { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 99px; font-size: 11px; font-weight: 800; white-space: nowrap; color: color-mix(in srgb, var(--c) 78%, var(--ink)); background: color-mix(in srgb, var(--c) 13%, var(--surface)); }
.tcat .i { width: 13px; height: 13px; }

/* Hub */
.kb-hero { display: grid; gap: 12px; padding: 18px; margin-bottom: 16px; background: linear-gradient(135deg, color-mix(in srgb, var(--brand-soft) 70%, var(--surface)), var(--surface)); }
.kb-search { position: relative; display: flex; align-items: center; }
.kb-search > .i { position: absolute; left: 16px; width: 22px; height: 22px; color: var(--brand); pointer-events: none; }
.kb-search .input { min-height: 58px; padding-left: 50px; font-size: 17px; border-radius: 16px; border-width: 1.5px; box-shadow: var(--shadow-sm); }
.kb-popular { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.kb-popular small { color: var(--ink-3); font-weight: 700; margin-right: 2px; }
.kb-popular .chip { cursor: pointer; }
.kb-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.kb-stats > div { display: grid; grid-template-columns: auto 1fr; column-gap: 10px; align-items: center; padding: 12px 14px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.kb-stats .i { grid-row: span 2; width: 22px; height: 22px; color: var(--brand); }
.kb-stats b { font: 800 20px/1 var(--font-head); color: var(--ink); }
.kb-stats small { color: var(--ink-3); }
.kb-progress { display: grid; gap: 5px; min-width: 180px; font-size: 12px; font-weight: 800; color: var(--ink-2); text-align: right; }
.starter-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
.starter { position: relative; display: grid; gap: 8px; align-content: start; padding: 14px 14px 12px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform .15s, border-color .2s; }
.starter:hover { transform: translateY(-2px); border-color: var(--brand-3); }
.starter.done { background: color-mix(in srgb, var(--ok-soft) 60%, var(--surface)); border-color: color-mix(in srgb, var(--ok) 35%, var(--line)); }
.starter-no { position: absolute; right: 12px; top: 8px; font: 800 22px var(--font-head); color: var(--brand-soft-2); }
.starter-name { font: 800 16px/1.2 var(--font-head); color: var(--ink); padding-right: 30px; }
.starter-name:hover { color: var(--brand); }
.starter p { color: var(--ink-3); font-size: 12.5px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.kb-daily { display: grid; gap: 8px; align-content: start; }
.kb-daily h3 a:hover { color: var(--brand); }
.kb-daily p { color: var(--ink-2); font-size: 13.5px; }
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; }
.cat-tile { display: grid; grid-template-columns: auto 1fr; column-gap: 12px; align-items: center; padding: 14px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform .15s, border-color .2s; }
.cat-tile:hover { transform: translateY(-2px); border-color: var(--c); }
.cat-tile > span { grid-row: span 2; width: 42px; height: 42px; border-radius: 13px; display: grid; place-items: center; color: var(--c); background: color-mix(in srgb, var(--c) 14%, var(--surface)); }
.cat-tile b { font-family: var(--font-head); font-size: 14px; color: var(--ink); }
.cat-tile small { color: var(--ink-3); }
.bio-cta { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; background: linear-gradient(120deg, color-mix(in srgb, #7b5cd6 14%, var(--surface)), var(--surface) 70%); }
.bio-cta h2 { margin: 4px 0 6px; }

/* Search results */
.kb-sec { margin-top: 18px; }
.kb-sec-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.kb-sec-head h3 { display: flex; align-items: center; gap: 8px; font-size: 15px; }
.kb-sec-head h3 .i { color: var(--brand); }
.kb-rows { display: grid; gap: 6px; }
.kb-row { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); transition: border-color .2s, background .2s; }
.kb-row:hover, .kb-row:focus-visible { border-color: var(--brand-3); background: var(--surface-2); }
.kb-main { flex: 1; min-width: 0; display: grid; gap: 2px; }
.kb-main b { color: var(--ink); font-size: 14px; }
.kb-main small { color: var(--ink-3); overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.kb-row > .i { color: var(--ink-3); }
mark { background: color-mix(in srgb, var(--gold) 45%, transparent); color: inherit; border-radius: 3px; padding: 0 1px; }
.quick-answer { display: grid; gap: 10px; border: 1.5px solid color-mix(in srgb, var(--brand) 40%, var(--line)); background: linear-gradient(160deg, var(--brand-soft), var(--surface) 60%); }
.quick-answer .kicker2 { display: inline-flex; align-items: center; gap: 6px; }
.quick-answer .kicker2 .i { width: 14px; height: 14px; }
.qa-ex-body { display: grid; grid-template-columns: 132px 1fr; gap: 16px; align-items: start; }
.qa-ex-body .thumb.md { width: 132px; height: 132px; object-fit: contain; border-radius: 16px; background: var(--stage); }
.qa-ex-body .qa-text .i { display: inline-block; width: 15px; height: 15px; vertical-align: -2px; margin-right: 4px; color: var(--brand); }
@media (max-width: 560px) { .qa-ex-body { grid-template-columns: 1fr; } .qa-ex-body .thumb.md { width: 112px; height: 112px; } }
.qa-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.qa-text { font-size: 15px; line-height: 1.65; color: var(--ink-2); }

/* Term sections */
.tsec-list { display: grid; gap: 10px; }
.tsec { display: grid; gap: 4px; padding: 10px 12px; border-radius: 12px; background: var(--surface-2); border-left: 3px solid var(--line-2); }
.tsec b { display: flex; align-items: center; gap: 6px; font-size: 12px; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-3); }
.tsec b .i { width: 15px; height: 15px; }
.tsec p { color: var(--ink-2); font-size: 14px; line-height: 1.6; }
.tsec-def { border-left-color: var(--info); } .tsec-def b .i { color: var(--info); }
.tsec-why { border-left-color: var(--brand); } .tsec-why b .i { color: var(--brand); }
.tsec-how { border-left-color: var(--ok); } .tsec-how b .i { color: var(--ok); }
.tsec-tip { border-left-color: var(--warn); background: color-mix(in srgb, var(--warn-soft) 70%, var(--surface)); } .tsec-tip b .i { color: var(--warn); }
.tsec-list.full .tsec p { font-size: 15px; line-height: 1.7; }
.tlinks { display: grid; gap: 6px; margin-top: 10px; }
.tlinks small { font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }

/* Glossary */
.gl-tools { display: grid; gap: 12px; padding: 14px; margin-bottom: 12px; }
.cat-chips { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 2px; scrollbar-width: thin; }
.cat-chip { --c: var(--brand); display: inline-flex; align-items: center; gap: 6px; flex: none; padding: 7px 11px; border-radius: 99px; border: 1px solid var(--line-2); background: var(--surface); color: var(--ink-2); font-size: 12.5px; font-weight: 700; white-space: nowrap; transition: background .2s, border-color .2s, color .2s; }
.cat-chip .i { width: 15px; height: 15px; color: var(--c); }
.cat-chip em { font-style: normal; font-size: 10.5px; font-weight: 800; padding: 1px 6px; border-radius: 99px; background: var(--surface-3); color: var(--ink-3); }
.cat-chip:hover { border-color: var(--c); }
.cat-chip.on { background: var(--c); border-color: var(--c); color: #fff; }
.cat-chip.on .i { color: #fff; }
.cat-chip.on em { background: rgba(255, 255, 255, .22); color: #fff; }
.az-bar { position: sticky; top: calc(var(--topbar-h) + 4px); z-index: 5; display: flex; flex-wrap: wrap; gap: 2px; padding: 6px; margin-bottom: 10px; border-radius: 14px; background: color-mix(in srgb, var(--surface) 92%, transparent); backdrop-filter: blur(10px); border: 1px solid var(--line); }
.az-bar a, .az-bar span { min-width: 28px; height: 28px; display: grid; place-items: center; border-radius: 8px; font-size: 12.5px; font-weight: 800; }
.az-bar a { color: var(--brand); }
.az-bar a:hover { background: var(--brand-soft); }
.az-bar span { color: var(--line-2); }
.gl-group { scroll-margin-top: calc(var(--topbar-h) + 60px); }
.term-list { display: grid; gap: 6px; }
.term-card { border-radius: 14px; background: var(--surface); border: 1px solid var(--line); transition: border-color .2s, box-shadow .2s; }
.term-card[open] { border-color: var(--brand-3); box-shadow: var(--shadow-sm); }
.term-card.learned { border-left: 3px solid var(--ok); }
.term-card summary { list-style: none; display: grid; grid-template-columns: auto auto 1fr auto; gap: 4px 12px; align-items: center; padding: 11px 14px; cursor: pointer; border-radius: 14px; }
.term-card summary::-webkit-details-marker { display: none; }
.term-card summary:hover { background: var(--surface-2); }
.tc-name { display: inline-flex; align-items: center; gap: 8px; }
.tc-name b { font-family: var(--font-head); font-size: 15px; color: var(--ink); }
.tc-name .chip { padding: 1px 7px; font-size: 10px; }
.tc-check .i { width: 16px; height: 16px; color: var(--ok); }
.tc-def { color: var(--ink-3); font-size: 13px; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tc-chev { width: 16px; height: 16px; color: var(--ink-3); transition: transform .2s; }
details[open] > summary .tc-chev { transform: rotate(180deg); }
.tc-body { display: grid; gap: 10px; padding: 0 14px 14px; }
.tc-aka { color: var(--ink-3); font-size: 12px; }
@media (max-width: 720px) {
  .term-card summary { grid-template-columns: 1fr auto; }
  .term-card summary .tcat { grid-row: 2; justify-self: start; }
  .tc-def { grid-column: 1 / -1; white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
  .tc-chev { grid-row: 1; grid-column: 2; }
}

/* Term page */
.term-page { display: grid; gap: 4px; max-width: 1180px; margin: 0 auto; }
.crumb-row { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.term-hero { display: flex; gap: 18px; align-items: flex-start; background: linear-gradient(135deg, color-mix(in srgb, var(--c) 13%, var(--surface)), var(--surface) 70%); border-color: color-mix(in srgb, var(--c) 30%, var(--line)); }
.th-ic { width: 64px; height: 64px; flex: none; border-radius: 20px; display: grid; place-items: center; color: #fff; background: var(--c); box-shadow: 0 12px 26px color-mix(in srgb, var(--c) 35%, transparent); }
.th-ic .i { width: 30px; height: 30px; }
.th-copy { display: grid; gap: 10px; min-width: 0; }
.th-copy h1 { font-size: clamp(28px, 3.4vw, 44px); }
@media (max-width: 640px) { .term-hero { flex-direction: column; } .th-ic { width: 52px; height: 52px; border-radius: 16px; } }

/* FAQ */
.faq-list { display: grid; gap: 8px; }
.faq-item { border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.faq-item[open] { border-color: var(--brand-3); box-shadow: var(--shadow-sm); }
.faq-item summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 16px; cursor: pointer; font-family: var(--font-head); font-weight: 800; font-size: 15px; color: var(--ink); border-radius: 14px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: var(--surface-2); }
.faq-body { display: grid; gap: 10px; padding: 0 16px 16px; }
.faq-body > p { color: var(--ink-2); font-size: 14.5px; line-height: 1.7; }
.faq-exs { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 6px; }
.faq-ex { display: flex; align-items: center; gap: 8px; padding: 4px 10px 4px 4px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface-2); font-size: 13px; font-weight: 700; color: var(--ink); min-width: 0; transition: border-color .2s, background .2s; }
.faq-ex:hover { border-color: var(--brand-3); background: var(--surface); }
.faq-ex .thumb.mini { width: 40px; height: 40px; }
.faq-ex span { overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; line-height: 1.25; }

/* Myths */
.myth-score { display: grid; gap: 10px; margin-bottom: 14px; }
.myth-score h2 small { font-size: 14px; font-weight: 600; }
.myth-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 12px; }
.myth-grid.one { grid-template-columns: 1fr; }
.myth-card, .myth-teaser { display: grid; gap: 10px; align-content: start; padding: 16px; border-radius: 18px; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm); scroll-margin-top: 90px; }
.myth-card.focus { border-color: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 20%, transparent); }
.myth-teaser { box-shadow: var(--shadow); }
.myth-claim { font: 700 16px/1.45 var(--font-head); color: var(--ink); }
.myth-btns { display: flex; flex-wrap: wrap; gap: 6px; }
.myth-result { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; padding: 8px 12px; border-radius: 12px; }
.myth-result b { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; }
.myth-result.ok { background: var(--ok-soft); color: var(--ok); }
.myth-result.warn { background: var(--warn-soft); color: var(--warn); }
.myth-result.bad { background: var(--bad-soft); color: var(--bad); }
.myth-why { color: var(--ink-2); font-size: 13.5px; line-height: 1.6; }

/* ───────────── BİYOLOJİ LAB ───────────── */
.bio-progress { display: grid; gap: 10px; }
.bio-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; }
.bio-card { position: relative; display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: start; padding: 16px; border-radius: 18px; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform .15s, border-color .2s, box-shadow .2s; }
.bio-card:hover { transform: translateY(-3px); border-color: #b9a4f0; box-shadow: var(--shadow); }
.bio-card.done { background: linear-gradient(135deg, color-mix(in srgb, var(--ok-soft) 70%, var(--surface)), var(--surface)); }
.bio-ic { width: 46px; height: 46px; border-radius: 15px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, #7b5cd6, #c9323f); box-shadow: 0 10px 22px rgba(123, 92, 214, .25); flex: none; }
.bio-ic.big { width: 64px; height: 64px; border-radius: 20px; }
.bio-ic.big .i { width: 30px; height: 30px; }
.bio-meta { display: grid; gap: 4px; min-width: 0; }
.bio-meta em { font-style: normal; font-size: 10.5px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: #7b5cd6; }
.bio-meta b { font-family: var(--font-head); font-size: 15.5px; line-height: 1.25; color: var(--ink); }
.bio-meta small { color: var(--ink-3); font-size: 12.5px; }
.bio-done { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; font-weight: 800; color: var(--ok); white-space: nowrap; }
.bio-done .i { width: 15px; height: 15px; }
.bio-go { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand); }
.bio-lesson { display: grid; gap: 14px; max-width: 1240px; margin: 0 auto; }
.bio-hero { display: flex; gap: 18px; align-items: flex-start; background: linear-gradient(135deg, color-mix(in srgb, #7b5cd6 12%, var(--surface)), var(--surface) 70%); }
.bio-hero h1 { font-size: clamp(26px, 3vw, 40px); margin: 6px 0; }
.bio-hero .lead { color: var(--ink-2); font-size: 15px; }
.bio-hero > .chip { margin-left: auto; }
@media (max-width: 640px) { .bio-hero { flex-direction: column; } .bio-hero > .chip { margin-left: 0; } }
.lab-card { border: 1.5px solid color-mix(in srgb, #7b5cd6 30%, var(--line)); }
.lab { display: grid; gap: 14px; }
.lab-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 18px; align-items: start; }
@media (max-width: 900px) { .lab-grid { grid-template-columns: 1fr; } }
.lab-visual { display: grid; gap: 8px; padding: 12px; border-radius: 16px; background: var(--stage); border: 1px solid var(--line); }
.lab-controls { display: grid; gap: 12px; }
.lab-range { display: grid; gap: 6px; }
.lab-range > span { display: flex; justify-content: space-between; gap: 10px; font-size: 13px; font-weight: 700; color: var(--ink-2); }
.lab-range b { color: var(--brand); font-variant-numeric: tabular-nums; }
.lab-range input { height: 26px; }
.lab-readout { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; }
.lab-readout > div { padding: 10px 12px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); }
.lab-readout > div.hi { background: var(--brand-soft); border-color: transparent; }
.lab-readout small { display: block; font-size: 10.5px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); }
.lab-readout b { display: block; margin-top: 3px; font: 800 18px/1.15 var(--font-head); color: var(--ink); font-variant-numeric: tabular-nums; }
.lab-readout .hi b { color: var(--brand-ink); }
.lab-legend { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12px; color: var(--ink-3); font-weight: 700; }
.lab-legend span { display: inline-flex; align-items: center; gap: 6px; }
.lab-legend i { width: 12px; height: 12px; border-radius: 4px; }
.lab-note { padding: 10px 12px; border-radius: 12px; background: color-mix(in srgb, #7b5cd6 9%, var(--surface)); color: var(--ink-2); font-size: 13.5px; line-height: 1.55; }
.bio-plot { width: 100%; height: auto; }
.bio-plot .axis { font-size: 11px; }
.sarco { width: 100%; height: auto; }
.xbridge { display: grid; gap: 8px; padding: 12px 14px; }
.xbridge h4 { display: flex; align-items: center; gap: 8px; }
.xb-row { display: grid; grid-template-columns: 180px 1fr; gap: 14px; align-items: center; }
.xb-row p { color: var(--ink-2); font-size: 13.5px; margin-top: 4px; }
.xb-svg { width: 100%; height: auto; }
.xb-dots { display: flex; gap: 6px; }
.xb-dots i { width: 22px; height: 5px; border-radius: 3px; background: var(--line-2); }
.xb-dots i.on { background: var(--brand); }
@media (max-width: 560px) { .xb-row { grid-template-columns: 1fr; } }
.stackbar { display: flex; height: 42px; border-radius: 12px; overflow: hidden; box-shadow: inset 0 0 0 1px var(--line); }
.stackbar.tall { height: 54px; }
.stackbar i { display: grid; place-items: center; min-width: 0; color: #fff; font-style: normal; transition: width .35s; }
.stackbar b { font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding: 0 6px; }
.fiber-table th:first-child { color: var(--ink-2); }
.mps-meals { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 8px; align-items: end; }
.mps-meal { display: flex; gap: 6px; align-items: end; padding: 8px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); }
.mps-meal label { display: grid; gap: 3px; font-size: 11px; font-weight: 700; color: var(--ink-3); flex: 1; }
.mu-grid { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: center; min-height: 190px; padding: 12px; }
.mu-grid i { width: var(--s); height: var(--s); border-radius: 50%; background: var(--line-2); transition: background .2s, box-shadow .2s, transform .2s; }
.mu-grid i.on { background: var(--info); box-shadow: 0 0 calc(4px + var(--r) * 14px) color-mix(in srgb, var(--info) 70%, transparent); transform: scale(calc(1 + var(--r) * .12)); }
.mu-grid i.big.on { background: var(--brand); box-shadow: 0 0 calc(4px + var(--r) * 16px) color-mix(in srgb, var(--brand) 70%, transparent); }
.lever-svg { width: 100%; max-width: 380px; height: auto; margin: 0 auto; }
.heart-vis { justify-items: center; gap: 14px; }
.heart-beat { --beat: 1s; width: 120px; height: 120px; display: grid; place-items: center; color: #e2434b; animation: beat var(--beat) ease-in-out infinite; }
.heart-beat .i { width: 110px; height: 110px; fill: #e2434b; stroke: #b3273a; }
@keyframes beat { 0%, 100% { transform: scale(1); } 15% { transform: scale(1.12); } 30% { transform: scale(.98); } 45% { transform: scale(1.06); } }
@media (prefers-reduced-motion: reduce) { .heart-beat { animation: none; } }
:root[data-motion="reduce"] .heart-beat { animation: none; }
.zone-bar { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; width: 100%; }
.zone-bar div { padding: 6px 4px; border-radius: 10px; text-align: center; background: color-mix(in srgb, var(--c) 18%, var(--surface)); border: 2px solid transparent; }
.zone-bar div.on { border-color: var(--c); background: color-mix(in srgb, var(--c) 35%, var(--surface)); }
.zone-bar b { display: block; font-size: 11px; }
.zone-bar small { font-size: 10px; color: var(--ink-3); }
.hormone-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.hormone { position: relative; min-height: 190px; padding: 0; border: 0; background: none; perspective: 900px; text-align: left; }
.hormone > span { position: absolute; inset: 0; display: grid; align-content: start; gap: 8px; padding: 14px; border-radius: 16px; border: 1px solid var(--line); backface-visibility: hidden; transition: transform .45s; }
.h-front { background: var(--surface); box-shadow: var(--shadow-sm); }
.h-front b { font-family: var(--font-head); font-size: 16px; }
.h-front small { color: var(--ink-2); font-size: 12.5px; }
.h-front em { margin-top: auto; display: inline-flex; align-items: center; gap: 5px; font-style: normal; font-size: 11.5px; font-weight: 800; color: var(--brand); }
.h-front em .i { width: 14px; height: 14px; }
.h-back { background: var(--surface-2); transform: rotateY(180deg); }
.h-back small { display: flex; gap: 6px; font-size: 12.5px; line-height: 1.45; }
.h-back .i { width: 15px; height: 15px; flex: none; margin-top: 2px; }
.h-myth { color: var(--bad); }
.h-fact { color: color-mix(in srgb, var(--ok) 75%, var(--ink)); }
.hormone.flipped .h-front { transform: rotateY(-180deg); }
.hormone.flipped .h-back { transform: rotateY(0); }
.prose-lab h3 { margin: 12px 0 6px; font-size: 17px; }
.prose-lab h3:first-child { margin-top: 0; }
.prose-lab p { color: var(--ink-2); font-size: 14.5px; line-height: 1.75; }
.take-list { margin: 0; padding-left: 18px; display: grid; gap: 8px; color: var(--ink-2); font-size: 13.5px; }
.bio-quiz { display: grid; gap: 14px; }
.bq { display: grid; gap: 8px; }
.bq > b { font-size: 14px; }
.bq-opts { display: grid; gap: 6px; }
.bq-opts .q-opt { padding: 9px 12px; font-size: 13px; }

/* Palette quick answer */
.palette-item.palette-answer { align-items: flex-start; padding: 14px; margin-bottom: 6px; border: 1.5px solid color-mix(in srgb, var(--brand) 35%, var(--line)); background: linear-gradient(150deg, var(--brand-soft), var(--surface) 70%); }
.palette-answer > span { gap: 4px; }
.palette-answer em { display: inline-flex; align-items: center; gap: 5px; font-style: normal; font-size: 10.5px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--brand); background: none; padding: 0; }
.palette-answer em .i { width: 13px; height: 13px; }
.palette-answer b { font-size: 16px; font-family: var(--font-head); }
.palette-answer p { color: var(--ink-2); font-size: 13px; line-height: 1.5; white-space: normal; }
.palette-answer .pa-why { color: var(--ink-3); font-size: 12.5px; }
.palette-answer .pa-why b { font-size: 12.5px; font-family: var(--font); color: var(--ink-2); }
.palette-answer .pa-open { display: inline-flex; align-items: center; gap: 4px; color: var(--brand) !important; font-weight: 700; }
.palette-answer .pa-open .i { width: 13px; height: 13px; }

/* Exercise "why" card */
.why-card { display: grid; gap: 12px; border-left: 4px solid var(--brand-2); }
.why-text { color: var(--ink-2); font-size: 14.5px; line-height: 1.65; }
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 8px; }
.why-grid > div { padding: 10px 12px; border-radius: 12px; background: var(--surface-2); }
.why-grid small { display: block; font-size: 10.5px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 3px; }
.why-grid b { font-size: 13.5px; color: var(--ink); font-weight: 700; }
.chip.term-link { text-decoration: none; cursor: pointer; }
.chip.term-link { padding: 4px 10px; font: 700 11.5px/1.4 var(--font); border: 1px solid var(--line-2); border-radius: 99px; color: var(--ink-3); }
.chip.term-link:hover { color: var(--brand); border-color: var(--brand-3); }

/* Library list view & pagination */
.lib-list { display: grid; gap: 4px; }
.lib-row { align-items: center; }
a.lib-row { display: grid; grid-template-columns: 48px minmax(0, 1.4fr) minmax(0, 1fr) auto 34px; gap: 12px; padding: 6px 12px 6px 6px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); transition: border-color .15s, background .15s; }
a.lib-row:hover { border-color: var(--brand-3); background: var(--surface-2); }
a.lib-row .thumb.mini { width: 48px; height: 48px; }
.lr-name { display: grid; min-width: 0; }
.lr-name b { font-size: 14px; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lr-name small { color: var(--ink-3); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lr-meta { display: flex; flex-wrap: wrap; gap: 4px 10px; min-width: 0; }
.lr-meta em { font-style: normal; font-size: 12px; color: var(--ink-3); white-space: nowrap; }
.lr-home.chip { padding: 4px; justify-self: end; }
.lr-home .i { width: 14px; height: 14px; }
@media (max-width: 720px) { a.lib-row { grid-template-columns: 44px minmax(0, 1fr) auto 30px; } .lr-meta { display: none; } }
.load-more { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin: 22px 0 6px; }
.load-more em { font-style: normal; font-weight: 600; opacity: .75; }

/* ───────────── BAŞLANGIÇ YOLU ───────────── */
.path-layout { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 18px; align-items: start; }
@media (max-width: 980px) { .path-layout { grid-template-columns: 1fr; } }
.path-summary { position: sticky; top: calc(var(--topbar-h) + 14px); display: grid; gap: 14px; justify-items: center; text-align: center; }
.path-summary h3 { font-size: 16px; margin-bottom: 4px; }
.path-summary .note { text-align: left; }
@media (max-width: 980px) { .path-summary { position: static; } }
.path-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; counter-reset: step; }
.path-step { position: relative; display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 14px; padding: 16px; border-radius: 18px; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.path-step::before { content: ''; position: absolute; left: 35px; top: 58px; bottom: -12px; width: 2px; background: var(--line); }
.path-step:last-child::before { display: none; }
.path-step.done { background: linear-gradient(135deg, color-mix(in srgb, var(--ok-soft) 70%, var(--surface)), var(--surface)); border-color: color-mix(in srgb, var(--ok) 30%, var(--line)); }
.path-step.done::before { background: var(--ok); }
.ps-no { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font: 800 16px var(--font-head); color: var(--brand); background: var(--brand-soft); border: 2px solid var(--surface); box-shadow: 0 0 0 2px var(--brand-soft-2); z-index: 1; }
.path-step.done .ps-no { color: #fff; background: var(--ok); box-shadow: 0 0 0 2px color-mix(in srgb, var(--ok) 35%, transparent); }
.ps-no .i { width: 20px; height: 20px; }
.ps-body { display: grid; gap: 8px; min-width: 0; }
.ps-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.ps-head h3 { display: flex; align-items: center; gap: 8px; font-size: 16px; }
.ps-head h3 .i { color: var(--brand); width: 18px; height: 18px; }
.ps-body > p { color: var(--ink-2); font-size: 13.5px; }
.path-moves { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 8px; }
.pm { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 6px 8px 6px 6px; border-radius: 14px; background: var(--surface-2); border: 1px solid var(--line); }
.pm.on { border-color: color-mix(in srgb, var(--ok) 40%, var(--line)); }
.pm a { display: flex; align-items: center; gap: 10px; min-width: 0; }
.pm a span { display: grid; min-width: 0; }
.pm b { font-size: 13px; }
.pm small { color: var(--ink-3); font-size: 11.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.home-path { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; border: 1.5px solid color-mix(in srgb, var(--brand) 25%, var(--line)); background: linear-gradient(120deg, var(--brand-soft), var(--surface) 65%); }
.home-path > div { flex: 1; min-width: 220px; display: grid; gap: 6px; }
.home-path h3 { font-size: 17px; }
.home-term { display: grid; gap: 8px; }
.home-term h3 a:hover { color: var(--brand); }
.home-term p { color: var(--ink-2); font-size: 13.5px; }

/* New calculators */
.meal-plan { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 8px; }
.meal-plan > div { display: grid; gap: 2px; padding: 10px 12px; border-radius: 14px; background: var(--surface-2); border: 1px solid var(--line); text-align: center; }
.meal-plan small { color: var(--ink-3); font-size: 11px; font-weight: 700; }
.meal-plan b { font: 800 20px/1.1 var(--font-head); color: var(--ink); }
.meal-plan em { font-style: normal; color: var(--brand); font-weight: 800; }
.sleep-opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.sleep-opts > div { display: grid; gap: 4px; padding: 14px; border-radius: 16px; background: var(--surface-2); border: 1px solid var(--line); text-align: center; }
.sleep-opts > div.good { background: color-mix(in srgb, var(--ok-soft) 70%, var(--surface)); border-color: color-mix(in srgb, var(--ok) 35%, var(--line)); }
.sleep-opts small { color: var(--ink-3); font-size: 12px; }
.sleep-opts b { font: 800 30px/1 var(--font-head); color: var(--ink); font-variant-numeric: tabular-nums; }
.sleep-opts em { font-style: normal; font-size: 12px; font-weight: 700; color: var(--ink-2); }
.big-result.warn { background: var(--warn-soft); }

/* Term flashcards */
.flash-wrap > .seg { justify-self: center; }
.flash.term .flash-front b { font: 800 clamp(26px, 3vw, 36px)/1.2 var(--font-head); font-style: normal; }
.flash-back .fb-def { font-size: 16px; line-height: 1.6; color: var(--ink-2); text-align: center; }
.flash-back .fb-why { font-size: 13.5px; color: var(--ink-3); text-align: center; }
.flash-back .fb-why strong { color: var(--brand); }

/* Narrow-screen safety */
.term-page, .bio-lesson { grid-template-columns: minmax(0, 1fr); }
.term-page > *, .bio-lesson > *, .lab, .lab > *, .lab-grid > *, .lab-controls > * { min-width: 0; }
.tlinks .chip, .kb-row .chip, .quick-answer .chip { max-width: 100%; white-space: normal; line-height: 1.35; }
.bio-plot, .lever-svg, .sarco { max-width: 100%; }
.art-nav .btn { white-space: normal; max-width: 100%; min-height: 44px; line-height: 1.3; text-align: left; }
@media (max-width: 640px) { .art-nav { flex-direction: column; align-items: stretch; } .art-nav > span:empty { display: none; } }

/* Library: everyday group word hint ("pazu" → Biseps) */
.lib-group-hint { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin: 4px 0 14px; }
.lib-group-hint > span:first-of-type { flex: 1 1 260px; }
.ex-aka { margin: -2px 0 8px; color: var(--ink-3); font-size: 13px; line-height: 1.5; }
.ex-aka small { font-weight: 800; letter-spacing: .02em; color: var(--ink-2); margin-right: 4px; }

/* Biyoloji Lab · ek dersler */
.brace-svg { width: 100%; max-width: 320px; height: auto; margin: 0 auto; display: block; }
.jump-bars { display: grid; gap: 10px; }
.jump-bar { display: grid; grid-template-columns: minmax(120px, 1.1fr) 2fr auto; gap: 12px; align-items: center; font-size: 13px; color: var(--ink-2); }
.jump-bar b { font-variant-numeric: tabular-nums; color: var(--ink); min-width: 62px; text-align: right; }
@media (max-width: 560px) { .jump-bar { grid-template-columns: 1fr auto; } .jump-bar .bar { grid-column: 1 / -1; grid-row: 2; } }