/* ===== dersler.tr — 9. Sınıf Yazılı Macerası ===== */
:root {
  --bg: #f5f3ff;
  --bg-desen: #ebe7ff;
  --yuzey: #ffffff;
  --yuzey2: #f3f1fb;
  --yuzey3: #e9e6f6;
  --metin: #1e1b2e;
  --soluk: #686480;
  --cizgi: #e3dff0;
  --vurgu: #6c5ce7;
  --vurgu-acik: #ece9ff;
  --ikincil: #0ea5c6;
  --basari: #17a058;
  --hata: #e0414b;
  --uyari: #e8890c;
  --altin: #f2b104;
  --golge: 0 1px 2px rgba(30, 20, 80, .05), 0 8px 24px rgba(30, 20, 80, .08);
  --golge-buyuk: 0 20px 50px rgba(30, 20, 80, .18);
  --r: 18px;
  --r-kucuk: 12px;
  --ders: var(--vurgu);
  --font: 'Nunito', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #100f18; --bg-desen: #17152a; --yuzey: #1b1a27; --yuzey2: #232233; --yuzey3: #2d2b41;
    --metin: #ecebf6; --soluk: #a3a0ba; --cizgi: #2f2d43; --vurgu: #8f82ff; --vurgu-acik: #2a2650;
    --ikincil: #38c6e6; --basari: #35c37a; --hata: #ff6b73; --uyari: #ffaa33; --altin: #ffc83d;
    --golge: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35); --golge-buyuk: 0 20px 50px rgba(0, 0, 0, .55);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #100f18; --bg-desen: #17152a; --yuzey: #1b1a27; --yuzey2: #232233; --yuzey3: #2d2b41;
  --metin: #ecebf6; --soluk: #a3a0ba; --cizgi: #2f2d43; --vurgu: #8f82ff; --vurgu-acik: #2a2650;
  --ikincil: #38c6e6; --basari: #35c37a; --hata: #ff6b73; --uyari: #ffaa33; --altin: #ffc83d;
  --golge: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35); --golge-buyuk: 0 20px 50px rgba(0, 0, 0, .55);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body {
  margin: 0; font-family: var(--font); font-size: 16.5px; line-height: 1.6; color: var(--metin);
  background: var(--bg);
  background-image: radial-gradient(var(--bg-desen) 1.2px, transparent 1.2px);
  background-size: 22px 22px;
  min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--vurgu); }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
img, svg { max-width: 100%; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--ders) 60%, transparent); outline-offset: 2px; border-radius: 6px; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; font-weight: 900; letter-spacing: -.01em; }
h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); }
h2 { font-size: clamp(1.25rem, 3vw, 1.6rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 .8em; }
.gizli { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ===== Üst çubuk ===== */
.ust {
  position: sticky; top: 0; z-index: 50; display: flex; align-items: center; gap: 16px;
  padding: 10px max(16px, calc((100vw - 1180px) / 2)); background: color-mix(in srgb, var(--yuzey) 86%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--cizgi);
}
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--metin); }
.logo-rozet {
  width: 36px; height: 36px; border-radius: 11px; display: grid; place-items: center; font-weight: 900; font-size: 22px; color: #fff;
  background: linear-gradient(135deg, #8b7bff, #5a46e0); box-shadow: 0 4px 12px rgba(108, 92, 231, .4); transform: rotate(-6deg);
}
.logo-yazi { font-weight: 900; font-size: 1.3rem; letter-spacing: -.02em; }
.logo-yazi span { color: var(--vurgu); }
.ust-nav { display: flex; gap: 4px; margin-left: 12px; }
.ust-nav a { text-decoration: none; color: var(--soluk); font-weight: 800; padding: 8px 12px; border-radius: 12px; font-size: .95rem; }
.ust-nav a:hover { background: var(--yuzey2); color: var(--metin); }
.ust-nav a.aktif { background: var(--vurgu-acik); color: var(--vurgu); }
.oyuncu-mini { margin-left: auto; display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--metin); }
.seri-mini { font-weight: 900; background: var(--yuzey2); padding: 4px 10px; border-radius: 999px; font-size: .95rem; }
.halka {
  --p: 0; width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center;
  background: conic-gradient(var(--vurgu) calc(var(--p) * 1%), var(--yuzey3) 0);
}
.halka b { width: 30px; height: 30px; border-radius: 50%; background: var(--yuzey); display: grid; place-items: center; font-size: .85rem; font-weight: 900; }
.avatar-mini { font-size: 26px; line-height: 1; }

/* overflow-x: clip kaydırma kabı oluşturmaz; yapışkan sekme çubuğu çalışmaya devam eder */
main { flex: 1; width: 100%; max-width: 1180px; margin: 0 auto; padding: 20px 16px 110px; outline: none; overflow-x: clip; position: relative; }
.alt { text-align: center; color: var(--soluk); font-size: .82rem; padding: 0 16px 90px; max-width: 900px; margin: 0 auto; }
.alt p { margin: .3em 0; }

.alt-nav { display: none; }
@media (max-width: 760px) {
  .ust-nav { display: none; }
  .alt-nav {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 60; justify-content: space-around;
    background: color-mix(in srgb, var(--yuzey) 92%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--cizgi); padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
  }
  .alt-nav a { display: flex; flex-direction: column; align-items: center; font-size: .7rem; font-weight: 800; color: var(--soluk); text-decoration: none; padding: 2px 6px; border-radius: 10px; }
  .alt-nav a span { font-size: 1.3rem; line-height: 1.2; }
  .alt-nav a.aktif { color: var(--vurgu); background: var(--vurgu-acik); }
  .seri-mini { font-size: .85rem; padding: 3px 8px; }
  body { font-size: 16px; }
}

/* ===== Genel bileşenler ===== */
.kart-k { background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: var(--r); box-shadow: var(--golge); padding: 20px; }
.izgara { display: grid; gap: 16px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 14px; padding: 12px 20px;
  font-weight: 900; font-size: 1rem; background: var(--ders); color: #fff; text-decoration: none;
  box-shadow: 0 4px 0 color-mix(in srgb, var(--ders) 70%, #000); transition: transform .08s, box-shadow .08s, filter .15s;
}
.btn:hover { filter: brightness(1.06); }
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 color-mix(in srgb, var(--ders) 70%, #000); }
.btn.ikincil { background: var(--yuzey2); color: var(--metin); box-shadow: 0 4px 0 var(--cizgi); }
.btn.basari { background: var(--basari); box-shadow: 0 4px 0 color-mix(in srgb, var(--basari) 65%, #000); }
.btn.hata { background: var(--hata); box-shadow: 0 4px 0 color-mix(in srgb, var(--hata) 65%, #000); }
.btn.kucuk { padding: 7px 13px; font-size: .9rem; border-radius: 11px; }
.btn.genis { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.cip { display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; border-radius: 999px; font-size: .8rem; font-weight: 800; background: var(--yuzey2); color: var(--soluk); white-space: nowrap; }
.cip.ders { background: color-mix(in srgb, var(--ders) 14%, transparent); color: var(--ders); }
.cip.acil { background: color-mix(in srgb, var(--hata) 15%, transparent); color: var(--hata); }
.cip.yakin { background: color-mix(in srgb, var(--uyari) 18%, transparent); color: var(--uyari); }
.cip.altin { background: color-mix(in srgb, var(--altin) 22%, transparent); color: color-mix(in srgb, var(--altin) 70%, var(--metin)); }
.ilerleme { height: 10px; border-radius: 999px; background: var(--yuzey3); overflow: hidden; }
.ilerleme > i { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--ders), color-mix(in srgb, var(--ders) 60%, #fff)); transition: width .5s cubic-bezier(.2, .8, .2, 1); }
.ust-baslik { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.geri { text-decoration: none; font-weight: 800; color: var(--soluk); display: inline-flex; align-items: center; gap: 6px; margin-bottom: 12px; }
.geri:hover { color: var(--metin); }
.bos { text-align: center; color: var(--soluk); padding: 40px 16px; }
.bos .buyuk-emoji { font-size: 56px; display: block; margin-bottom: 8px; }
.yukleniyor { display: grid; place-items: center; gap: 12px; padding: 80px 0; color: var(--soluk); font-weight: 700; }
.donen { width: 44px; height: 44px; border-radius: 50%; border: 5px solid var(--yuzey3); border-top-color: var(--vurgu); animation: don 0.8s linear infinite; }
@keyframes don { to { transform: rotate(360deg); } }

/* ===== Ana sayfa ===== */
.kahraman { display: grid; grid-template-columns: 1.25fr 1fr; gap: 16px; margin-bottom: 22px; }
@media (max-width: 860px) { .kahraman { grid-template-columns: 1fr; } }
.oyuncu-kart {
  position: relative; overflow: hidden; border-radius: 24px; padding: 22px; color: #fff;
  background: linear-gradient(135deg, #7b6cff 0%, #5a46e0 55%, #3f2fc0 100%); box-shadow: var(--golge-buyuk);
}
.oyuncu-kart::after { content: ''; position: absolute; right: -60px; top: -60px; width: 220px; height: 220px; border-radius: 50%; background: rgba(255, 255, 255, .08); }
.oyuncu-kart::before { content: ''; position: absolute; right: 40px; bottom: -90px; width: 180px; height: 180px; border-radius: 50%; background: rgba(255, 255, 255, .06); }
.oyuncu-ust { display: flex; align-items: center; gap: 14px; position: relative; z-index: 1; }
.avatar-buyuk { width: 70px; height: 70px; border-radius: 22px; display: grid; place-items: center; font-size: 42px; background: rgba(255, 255, 255, .18); box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .25); }
.oyuncu-ad { font-size: 1.4rem; font-weight: 900; line-height: 1.2; }
.oyuncu-unvan { opacity: .9; font-weight: 700; }
.xp-cubuk { position: relative; z-index: 1; margin-top: 18px; }
.xp-cubuk .ilerleme { background: rgba(255, 255, 255, .22); height: 14px; }
.xp-cubuk .ilerleme > i { background: linear-gradient(90deg, #ffd85a, #ffb21e); }
.xp-yazi { display: flex; justify-content: space-between; font-weight: 800; font-size: .9rem; margin-top: 6px; opacity: .95; }
.oyuncu-istat { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
.oyuncu-istat div { background: rgba(255, 255, 255, .14); border-radius: 14px; padding: 8px 10px; text-align: center; }
.oyuncu-istat b { display: block; font-size: 1.3rem; font-weight: 900; }
.oyuncu-istat span { font-size: .78rem; opacity: .9; font-weight: 700; }

.gorevler h3 { display: flex; align-items: center; gap: 8px; }
.gorev { display: grid; grid-template-columns: 34px 1fr auto; gap: 10px; align-items: center; padding: 10px 0; border-bottom: 1px dashed var(--cizgi); }
.gorev:last-child { border-bottom: 0; }
.gorev-ikon { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: var(--yuzey2); font-size: 18px; }
.gorev.tamam .gorev-ikon { background: color-mix(in srgb, var(--basari) 18%, transparent); }
.gorev-ad { font-weight: 800; font-size: .95rem; }
.gorev .ilerleme { height: 7px; margin-top: 4px; }
.gorev .ilerleme > i { background: var(--altin); }
.gorev.tamam .ilerleme > i { background: var(--basari); }
.gorev-odul { font-weight: 900; font-size: .85rem; color: var(--altin); }
.geri-sayim {
  display: flex; align-items: center; gap: 14px; padding: 14px 18px; border-radius: var(--r); margin-bottom: 22px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--ders) 16%, var(--yuzey)), var(--yuzey)); border: 1px solid color-mix(in srgb, var(--ders) 30%, var(--cizgi));
}
.geri-sayim .gs-ikon { font-size: 34px; }
.geri-sayim .gs-gun { margin-left: auto; text-align: center; font-weight: 900; color: var(--ders); line-height: 1; }
.geri-sayim .gs-gun b { font-size: 2rem; display: block; }

.ders-izgara { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.ders-kart {
  position: relative; display: flex; flex-direction: column; gap: 10px; text-decoration: none; color: var(--metin);
  background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: 22px; padding: 18px; box-shadow: var(--golge);
  transition: transform .15s, box-shadow .15s; overflow: hidden;
}
.ders-kart:hover { transform: translateY(-4px); box-shadow: var(--golge-buyuk); }
.ders-kart::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 6px; background: var(--ders); }
.ders-kart-ust { display: flex; align-items: center; gap: 12px; }
.ders-ikon { width: 56px; height: 56px; border-radius: 18px; display: grid; place-items: center; font-size: 30px; background: color-mix(in srgb, var(--ders) 15%, transparent); flex-shrink: 0; }
.ders-ad { font-weight: 900; font-size: 1.12rem; line-height: 1.2; }
.ders-dunya { color: var(--soluk); font-size: .85rem; font-weight: 700; }
.ders-kart .ilerleme { height: 8px; }
.ders-kart-alt { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: .85rem; font-weight: 800; color: var(--soluk); flex-wrap: wrap; }
.bolum-baslik { display: flex; align-items: baseline; gap: 10px; margin: 26px 0 12px; }
.bolum-baslik h2 { margin: 0; }
.bolum-baslik span { color: var(--soluk); font-weight: 700; font-size: .9rem; }
.hizli-izgara { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.hizli { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--metin); background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: 16px; padding: 14px; box-shadow: var(--golge); font-weight: 800; }
.hizli:hover { border-color: var(--vurgu); }
.hizli .h-ikon { font-size: 26px; }
.hizli small { display: block; color: var(--soluk); font-weight: 700; }

/* ===== Ders sayfası ===== */
.ders-afis {
  position: relative; overflow: hidden; border-radius: 26px; padding: 24px; color: #fff; margin-bottom: 20px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--ders) 88%, #fff) 0%, var(--ders) 50%, color-mix(in srgb, var(--ders) 70%, #000) 100%);
  box-shadow: var(--golge-buyuk);
}
.ders-afis .dev-ikon { position: absolute; right: 10px; bottom: -30px; font-size: 150px; opacity: .2; transform: rotate(-12deg); pointer-events: none; }
.ders-afis h1 { margin: 0 0 4px; }
.ders-afis .alt-yazi { opacity: .92; font-weight: 700; }
.ders-afis .cipler { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.ders-afis .cip { background: rgba(255, 255, 255, .2); color: #fff; font-size: .85rem; padding: 5px 12px; }
.ders-afis .ilerleme { background: rgba(255, 255, 255, .25); margin-top: 16px; max-width: 420px; }
.ders-afis .ilerleme > i { background: #fff; }
.ders-duzen { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 20px; align-items: start; }
@media (max-width: 960px) { .ders-duzen { grid-template-columns: 1fr; } }
.yan-panel { display: grid; gap: 16px; position: sticky; top: 76px; }
@media (max-width: 960px) { .yan-panel { position: static; } }

/* Oyun haritası */
.harita { position: relative; padding: 10px 0 20px; }
.harita svg.yol { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.harita svg.yol path { fill: none; stroke: color-mix(in srgb, var(--ders) 35%, var(--cizgi)); stroke-width: 6; stroke-linecap: round; stroke-dasharray: 2 14; }
.dugum-satir { position: relative; display: flex; justify-content: center; padding: 14px 0; }
.dugum {
  --x: 0px; transform: translateX(var(--x)); display: flex; flex-direction: column; align-items: center; gap: 6px;
  text-decoration: none; color: var(--metin); width: 190px; text-align: center; position: relative; z-index: 1;
}
.dugum-daire {
  width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; font-size: 36px; position: relative;
  background: var(--yuzey); border: 4px solid color-mix(in srgb, var(--ders) 45%, var(--cizgi));
  box-shadow: 0 6px 0 color-mix(in srgb, var(--ders) 35%, var(--cizgi)), var(--golge); transition: transform .15s;
}
.dugum:hover .dugum-daire { transform: translateY(-4px) scale(1.04); }
.dugum.bitti .dugum-daire { background: color-mix(in srgb, var(--ders) 18%, var(--yuzey)); border-color: var(--ders); }
.dugum.siradaki .dugum-daire { animation: nabiz 1.8s ease-in-out infinite; border-color: var(--ders); }
@keyframes nabiz { 0%, 100% { box-shadow: 0 6px 0 color-mix(in srgb, var(--ders) 35%, var(--cizgi)), 0 0 0 0 color-mix(in srgb, var(--ders) 45%, transparent); } 50% { box-shadow: 0 6px 0 color-mix(in srgb, var(--ders) 35%, var(--cizgi)), 0 0 0 14px transparent; } }
.dugum-yuzde { position: absolute; bottom: -8px; right: -8px; background: var(--ders); color: #fff; font-size: .72rem; font-weight: 900; padding: 2px 7px; border-radius: 999px; }
.dugum-ad { font-weight: 900; font-size: .95rem; line-height: 1.25; background: color-mix(in srgb, var(--yuzey) 85%, transparent); border-radius: 8px; padding: 0 4px; }
.yildizlar { font-size: 1rem; letter-spacing: 2px; color: var(--cizgi); line-height: 1; }
.yildizlar .dolu { color: var(--altin); text-shadow: 0 1px 0 color-mix(in srgb, var(--altin) 50%, #000); }
.dugum.boss .dugum-daire { width: 104px; height: 104px; font-size: 48px; background: linear-gradient(135deg, #2b2340, #4a2f7a); border-color: var(--altin); box-shadow: 0 6px 0 #a87b00, var(--golge-buyuk); }
.dugum.boss .dugum-ad { color: var(--metin); }
.dugum .y2 { font-size: .7rem; font-weight: 800; color: var(--soluk); }
@media (max-width: 520px) { .dugum { width: 150px; } .dugum-daire { width: 72px; height: 72px; font-size: 30px; } }

.senaryo-tablo { width: 100%; border-collapse: collapse; font-size: .85rem; }
.senaryo-tablo th, .senaryo-tablo td { border-bottom: 1px solid var(--cizgi); padding: 6px 4px; text-align: center; }
.senaryo-tablo th:first-child, .senaryo-tablo td:first-child { text-align: left; }
.senaryo-tablo td.var { font-weight: 900; color: var(--ders); }
.kod-liste { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: .9rem; }
.kod-liste li { display: grid; grid-template-columns: auto 1fr; gap: 8px; align-items: start; }
.kod-liste .cip { margin-top: 2px; }
.kod-liste li.pasif { opacity: .55; }

/* ===== Konu sayfası ===== */
.konu-bas { display: flex; gap: 16px; align-items: center; margin-bottom: 14px; }
.konu-bas .ders-ikon { width: 64px; height: 64px; font-size: 34px; }
.konu-bas h1 { margin: 0; font-size: clamp(1.4rem, 3.5vw, 2rem); }
.konu-bas .ust-satir { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 4px; }
.cikti-kutu { font-size: .9rem; color: var(--soluk); background: var(--yuzey); border: 1px dashed var(--cizgi); border-radius: 14px; padding: 10px 14px; margin-bottom: 16px; }
.cikti-kutu b { color: var(--metin); }
.sekmeler { display: flex; gap: 8px; overflow-x: auto; padding: 4px 2px 12px; margin: 0 -2px 8px; scrollbar-width: thin; position: sticky; top: 57px; z-index: 20; background: linear-gradient(var(--bg) 80%, transparent); }
.sekme {
  flex-shrink: 0; display: flex; align-items: center; gap: 6px; border: 2px solid var(--cizgi); background: var(--yuzey); border-radius: 14px;
  padding: 8px 13px; font-weight: 800; font-size: .92rem; color: var(--metin); text-decoration: none; white-space: nowrap;
}
.sekme small { font-weight: 800; color: var(--soluk); font-size: .75rem; }
.sekme.aktif { border-color: var(--ders); background: color-mix(in srgb, var(--ders) 12%, var(--yuzey)); color: var(--ders); }
.sekme .tik { color: var(--basari); }
.sekme-icerik { min-height: 300px; }

/* Anlatım */
.anlatim-bolum { background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: var(--r); box-shadow: var(--golge); padding: 22px clamp(16px, 3vw, 30px); margin-bottom: 16px; }
.anlatim-bolum > h2 { display: flex; align-items: center; gap: 10px; font-size: 1.3rem; }
.anlatim-bolum > h2 .no { width: 34px; height: 34px; flex-shrink: 0; border-radius: 10px; display: grid; place-items: center; font-size: 1rem; background: color-mix(in srgb, var(--ders) 15%, transparent); color: var(--ders); }
.anlatim-bolum.okundu > h2 .no { background: var(--basari); color: #fff; }
.okudum { margin-top: 14px; display: flex; justify-content: flex-end; }
.icerik { overflow-wrap: anywhere; }
.icerik h3 { margin-top: 1.2em; color: color-mix(in srgb, var(--ders) 75%, var(--metin)); }
.icerik h4 { margin-top: 1em; }
.icerik ul, .icerik ol { padding-left: 1.4em; margin: .4em 0 .9em; }
.icerik li { margin: .25em 0; }
.icerik li::marker { color: var(--ders); font-weight: 900; }
.icerik strong, .icerik b { font-weight: 900; }
.icerik mark { background: color-mix(in srgb, var(--altin) 35%, transparent); color: inherit; padding: 0 3px; border-radius: 4px; }
.icerik .vurgu { color: var(--ders); font-weight: 900; }
.icerik blockquote { margin: .8em 0; padding: 10px 16px; border-left: 4px solid var(--ders); background: var(--yuzey2); border-radius: 0 12px 12px 0; font-style: italic; }
.icerik hr { border: 0; border-top: 2px dashed var(--cizgi); margin: 1.2em 0; }
.icerik code { background: var(--yuzey2); padding: 1px 6px; border-radius: 6px; font-size: .92em; }
.icerik .katex-display { position: relative; overflow-x: auto; overflow-y: hidden; padding: 4px 0; }
.icerik .katex { font-size: 1.08em; }
.katex.genis { position: relative; display: inline-block; max-width: 100%; overflow-x: auto; overflow-y: hidden; vertical-align: middle; padding-bottom: 2px; }
/* position:relative — KaTeX'in mutlak konumlu gizli MathML katmanı kaydırma kutusunun dışına taşıp sayfayı genişletmesin */
.tablo-sarici { position: relative; max-width: 100%; overflow-x: auto; margin: .8em 0 1.1em; border-radius: 12px; border: 1px solid var(--cizgi); }
.tablo-sarici > table { margin: 0 !important; border: 0 !important; border-radius: 0 !important; }
.icerik table { border-collapse: separate; border-spacing: 0; width: 100%; margin: .8em 0 1.1em; font-size: .93rem; border-radius: 12px; border: 1px solid var(--cizgi); }
.icerik table th { background: color-mix(in srgb, var(--ders) 14%, var(--yuzey)); font-weight: 900; text-align: left; }
.icerik table th, .icerik table td { padding: 9px 12px; border-bottom: 1px solid var(--cizgi); vertical-align: top; }
.icerik table tr:last-child td { border-bottom: 0; }
.icerik table tr:nth-child(even) td { background: color-mix(in srgb, var(--yuzey2) 60%, transparent); }
.icerik figure.sekil { margin: 1em auto; text-align: center; background: var(--yuzey2); border-radius: 14px; padding: 14px; color: var(--metin); }
.icerik figure.sekil svg { width: 100%; max-width: 560px; height: auto; display: block; margin: 0 auto; overflow: visible; }
.icerik figure.sekil figcaption { font-size: .85rem; color: var(--soluk); margin-top: 8px; font-weight: 700; }
.icerik details.acilir { border: 1px solid var(--cizgi); border-radius: 12px; padding: 0 14px; margin: .8em 0; background: var(--yuzey2); }
.icerik details.acilir summary { cursor: pointer; font-weight: 900; padding: 10px 0; color: var(--ders); }
.icerik details.acilir[open] { padding-bottom: 10px; }
.icerik img { max-width: 100%; height: auto; border-radius: 10px; }

/* Bilgi kutuları */
.kutu { --c: var(--ikincil); position: relative; margin: 1em 0; padding: 12px 16px 12px 50px; border-radius: 14px; background: color-mix(in srgb, var(--c) 10%, var(--yuzey)); border: 1px solid color-mix(in srgb, var(--c) 30%, transparent); }
.kutu::before { position: absolute; left: 14px; top: 11px; font-size: 1.25rem; line-height: 1.4; }
.kutu > :last-child { margin-bottom: 0; }
.kutu.tanim { --c: #3b82f6; } .kutu.tanim::before { content: '📘'; }
.kutu.bilgi { --c: var(--ikincil); } .kutu.bilgi::before { content: 'ℹ️'; }
.kutu.ipucu { --c: var(--altin); } .kutu.ipucu::before { content: '💡'; }
.kutu.dikkat { --c: var(--hata); } .kutu.dikkat::before { content: '⚠️'; }
.kutu.ornek { --c: var(--basari); } .kutu.ornek::before { content: '✏️'; }
.kutu.formul { --c: var(--vurgu); } .kutu.formul::before { content: '🧮'; }
.kutu.biliyor { --c: #a855f7; } .kutu.biliyor::before { content: '🤔'; }
.kutu.yazili { --c: #f97316; } .kutu.yazili::before { content: '📝'; }

/* Örnekler */
.ornek-kart { background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: var(--r); padding: 18px 20px; margin-bottom: 14px; box-shadow: var(--golge); }
.ornek-ust { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.ornek-ust b { font-weight: 900; color: var(--ders); }
.zorluk { font-size: .72rem; font-weight: 900; padding: 2px 8px; border-radius: 999px; text-transform: uppercase; letter-spacing: .03em; }
.zorluk.kolay { background: color-mix(in srgb, var(--basari) 16%, transparent); color: var(--basari); }
.zorluk.orta { background: color-mix(in srgb, var(--uyari) 18%, transparent); color: var(--uyari); }
.zorluk.zor { background: color-mix(in srgb, var(--hata) 15%, transparent); color: var(--hata); }
.cozum { margin-top: 12px; padding: 14px 16px; border-radius: 14px; background: color-mix(in srgb, var(--basari) 8%, var(--yuzey)); border: 1px dashed color-mix(in srgb, var(--basari) 45%, transparent); }
.cozum-baslik { font-weight: 900; color: var(--basari); margin-bottom: 6px; }

/* Hap bilgi */
.hap-liste { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; counter-reset: hap; }
.hap-liste li { counter-increment: hap; display: grid; grid-template-columns: 38px 1fr; gap: 12px; align-items: start; background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: 14px; padding: 12px 14px; box-shadow: var(--golge); }
.hap-liste li::before { content: counter(hap); width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; font-weight: 900; color: #fff; background: var(--ders); }

/* Oyun kutusu (test, kartlar vb.) */
.oyun { max-width: 760px; margin: 0 auto; }
.oyun-ust { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.oyun-ust .ilerleme { flex: 1; height: 14px; }
.oyun-ust .sayac { font-weight: 900; color: var(--soluk); font-size: .9rem; white-space: nowrap; }
.combo { font-weight: 900; color: var(--uyari); white-space: nowrap; min-width: 54px; text-align: right; }
.combo.ates { animation: zipla .4s; }
@keyframes zipla { 40% { transform: scale(1.4); } }
.soru-kart { background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: 22px; padding: clamp(18px, 3vw, 28px); box-shadow: var(--golge); }
.soru-metin { font-size: 1.08rem; font-weight: 700; margin-bottom: 16px; }
.secenekler { display: grid; gap: 10px; }
.secenek {
  display: grid; grid-template-columns: 38px 1fr; gap: 12px; align-items: center; text-align: left; width: 100%;
  background: var(--yuzey); border: 2px solid var(--cizgi); border-bottom-width: 4px; border-radius: 16px; padding: 10px 14px; font-weight: 700;
  transition: border-color .12s, background .12s, transform .08s;
}
.secenek:hover:not(:disabled) { border-color: color-mix(in srgb, var(--ders) 60%, var(--cizgi)); background: color-mix(in srgb, var(--ders) 5%, var(--yuzey)); }
.secenek:active:not(:disabled) { transform: translateY(2px); }
.secenek .harf { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; font-weight: 900; background: var(--yuzey2); color: var(--soluk); }
.secenek.dogru { border-color: var(--basari); background: color-mix(in srgb, var(--basari) 12%, var(--yuzey)); }
.secenek.dogru .harf { background: var(--basari); color: #fff; }
.secenek.yanlis { border-color: var(--hata); background: color-mix(in srgb, var(--hata) 10%, var(--yuzey)); animation: salla .35s; }
.secenek.yanlis .harf { background: var(--hata); color: #fff; }
.secenek:disabled { cursor: default; }
@keyframes salla { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.geri-bildirim { margin-top: 14px; border-radius: 16px; padding: 14px 16px; display: none; }
.geri-bildirim.goster { display: block; animation: belir .25s ease-out; }
.geri-bildirim.iyi { background: color-mix(in srgb, var(--basari) 12%, var(--yuzey)); border: 1px solid color-mix(in srgb, var(--basari) 40%, transparent); }
.geri-bildirim.kotu { background: color-mix(in srgb, var(--hata) 10%, var(--yuzey)); border: 1px solid color-mix(in srgb, var(--hata) 35%, transparent); }
.geri-bildirim .gb-baslik { font-weight: 900; font-size: 1.05rem; margin-bottom: 4px; }
.geri-bildirim.iyi .gb-baslik { color: var(--basari); }
.geri-bildirim.kotu .gb-baslik { color: var(--hata); }
@keyframes belir { from { opacity: 0; transform: translateY(6px); } }
.oyun-alt { display: flex; justify-content: space-between; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.kaynak-not { font-size: .78rem; color: var(--soluk); font-weight: 700; margin-top: 8px; }

/* Bilgi kartı (flip) */
/* 2B çevirme: 3B rotateY bazı cihazlarda (ve ekran görüntüsünde) çizimi kilitliyor */
.flip { max-width: 560px; margin: 0 auto; }
.flip-ic { position: relative; min-height: 280px; cursor: pointer; }
.flip.anim .flip-ic { animation: kartCevir .36s ease-in-out; }
@keyframes kartCevir { 50% { transform: scaleX(.04); } }
.flip-yuz { position: absolute; inset: 0; border-radius: 24px; padding: 28px 28px 36px; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; font-size: 1.15rem; font-weight: 800; box-shadow: var(--golge); overflow: auto; transition: opacity 0s .18s, visibility 0s .18s; }
.flip-on { background: var(--yuzey); border: 3px solid color-mix(in srgb, var(--ders) 45%, var(--cizgi)); }
.flip-arka { background: linear-gradient(135deg, color-mix(in srgb, var(--ders) 90%, #fff), color-mix(in srgb, var(--ders) 75%, #000)); color: #fff; font-weight: 700; opacity: 0; visibility: hidden; }
.flip.cevrik .flip-on { opacity: 0; visibility: hidden; }
.flip.cevrik .flip-arka { opacity: 1; visibility: visible; }
.flip-arka .katex { color: #fff; }
.flip-ipucu { position: absolute; bottom: 12px; left: 0; right: 0; font-size: .75rem; color: var(--soluk); font-weight: 800; }
.flip-arka .flip-ipucu { color: rgba(255, 255, 255, .8); }
.kart-butonlar { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 560px; margin: 18px auto 0; }

/* Doğru / Yanlış */
.dy-butonlar { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }
.dy-butonlar .btn { padding: 18px; font-size: 1.15rem; }

/* Boşluk doldurma */
.bosluk-cumle { font-size: 1.15rem; font-weight: 700; line-height: 2; }
.bosluk-girdi { display: inline-block; min-width: 140px; max-width: 100%; border: 0; border-bottom: 3px solid var(--ders); background: color-mix(in srgb, var(--ders) 8%, transparent); border-radius: 8px 8px 0 0; padding: 2px 10px; font-weight: 900; text-align: center; outline: none; }
.bosluk-girdi.dogru { border-color: var(--basari); color: var(--basari); }
.bosluk-girdi.yanlis { border-color: var(--hata); color: var(--hata); }

/* Eşleştirme */
.esles { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.esles-sutun { display: grid; gap: 10px; align-content: start; }
.esles-oge { border: 2px solid var(--cizgi); border-bottom-width: 4px; border-radius: 14px; background: var(--yuzey); padding: 12px; font-weight: 800; text-align: center; min-height: 58px; display: flex; align-items: center; justify-content: center; transition: .12s; }
.esles-oge:hover:not(:disabled) { border-color: var(--ders); }
.esles-oge.secili { border-color: var(--ders); background: color-mix(in srgb, var(--ders) 12%, var(--yuzey)); transform: scale(1.02); }
.esles-oge.tamam { border-color: var(--basari); background: color-mix(in srgb, var(--basari) 12%, var(--yuzey)); opacity: .6; cursor: default; }
.esles-oge.hatali { border-color: var(--hata); animation: salla .35s; }
@media (max-width: 520px) { .esles-oge { font-size: .88rem; padding: 10px 8px; } }

/* Yazılı provası */
.yazili-soru { background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: 22px; padding: clamp(18px, 3vw, 26px); box-shadow: var(--golge); margin-bottom: 18px; }
.yazili-ust { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.yazili-no { font-weight: 900; font-size: 1.05rem; }
.puan-rozet { font-weight: 900; background: color-mix(in srgb, var(--altin) 22%, transparent); color: color-mix(in srgb, var(--altin) 65%, var(--metin)); padding: 4px 12px; border-radius: 999px; font-size: .9rem; }
.cevap-alan { width: 100%; min-height: 120px; resize: vertical; border: 2px dashed var(--cizgi); border-radius: 14px; background: var(--yuzey2); padding: 12px 14px; line-height: 1.6; margin-top: 10px; }
.cevap-alan:focus { outline: none; border-color: var(--ders); border-style: solid; }
.model-cevap { margin-top: 14px; padding: 16px; border-radius: 16px; background: color-mix(in srgb, var(--basari) 8%, var(--yuzey)); border: 2px solid color-mix(in srgb, var(--basari) 35%, transparent); }
.model-cevap > .mc-baslik { font-weight: 900; color: var(--basari); margin-bottom: 8px; }
.oz-degerlendir { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; align-items: center; }
.oz-degerlendir > span { font-weight: 800; color: var(--soluk); margin-right: 4px; }
.oz-degerlendir .btn.secili { outline: 3px solid var(--metin); outline-offset: 2px; }

/* Sonuç ekranı */
.sonuc { text-align: center; padding: 30px 20px; }
.sonuc .buyuk { font-size: 72px; line-height: 1; animation: zipla .6s; }
.sonuc .puan { font-size: 3rem; font-weight: 900; color: var(--ders); line-height: 1.1; }
.sonuc .yildizlar { font-size: 2.6rem; margin: 10px 0; }
.sonuc-istat { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin: 16px 0 22px; }
.sonuc-istat div { background: var(--yuzey2); border-radius: 14px; padding: 10px 16px; font-weight: 800; }
.sonuc-istat b { display: block; font-size: 1.4rem; }

/* Deneme yazılısı */
.senaryo-secim { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; }
.senaryo-kart { text-align: left; background: var(--yuzey); border: 2px solid var(--cizgi); border-bottom-width: 5px; border-radius: 18px; padding: 16px; transition: .12s; }
.senaryo-kart:hover { border-color: var(--ders); transform: translateY(-2px); }
.senaryo-kart h3 { margin-bottom: 6px; }
.senaryo-kart .cipler { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.sinav-kagidi { background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: 8px; box-shadow: var(--golge-buyuk); padding: clamp(18px, 4vw, 44px); position: relative; }
.sinav-kagidi::before { content: ''; position: absolute; left: clamp(10px, 2.5vw, 26px); top: 0; bottom: 0; border-left: 2px solid color-mix(in srgb, var(--hata) 30%, transparent); }
.sinav-baslik { text-align: center; border-bottom: 2px solid var(--metin); padding-bottom: 12px; margin-bottom: 18px; }
.sinav-baslik h2 { margin: 0; }
.sinav-baslik p { margin: 4px 0 0; color: var(--soluk); font-weight: 700; font-size: .9rem; }
.zamanlayici { position: sticky; top: 64px; z-index: 30; display: flex; justify-content: space-between; align-items: center; gap: 12px; background: var(--metin); color: var(--yuzey); padding: 10px 16px; border-radius: 16px; margin-bottom: 16px; font-weight: 900; box-shadow: var(--golge-buyuk); }
.zamanlayici .sure { font-size: 1.5rem; font-variant-numeric: tabular-nums; }
.zamanlayici.az { background: var(--hata); color: #fff; }
.puan-sec { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.puan-sec button { border: 2px solid var(--cizgi); background: var(--yuzey); border-radius: 10px; padding: 6px 12px; font-weight: 900; }
.puan-sec button.secili { border-color: var(--ders); background: var(--ders); color: #fff; }
.not-cizelge { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; margin: 14px auto; max-width: 520px; font-size: .78rem; font-weight: 800; }
.not-cizelge div { background: var(--yuzey2); border-radius: 10px; padding: 6px 4px; }
.not-cizelge div.aktif { background: var(--ders); color: #fff; }

/* Rozetler */
.rozet-izgara { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
.rozet { background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: 20px; padding: 18px 12px; text-align: center; box-shadow: var(--golge); }
.rozet .r-ikon { font-size: 46px; line-height: 1.1; display: block; margin-bottom: 6px; }
.rozet b { display: block; font-weight: 900; }
.rozet small { color: var(--soluk); font-weight: 700; font-size: .8rem; display: block; line-height: 1.35; margin-top: 4px; }
.rozet.kilitli .r-ikon { filter: grayscale(1) opacity(.35); }
.rozet.kilitli b { color: var(--soluk); }
.rozet:not(.kilitli) { border-color: color-mix(in srgb, var(--altin) 55%, var(--cizgi)); background: linear-gradient(180deg, color-mix(in srgb, var(--altin) 10%, var(--yuzey)), var(--yuzey)); }

/* Kaynaklar */
.kaynak-ders { margin-bottom: 18px; }
.kaynak-ders h3 { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.kaynak-liste { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 10px; }
.kaynak-link { display: flex; gap: 10px; align-items: center; padding: 12px 14px; border-radius: 14px; background: var(--yuzey2); text-decoration: none; color: var(--metin); font-weight: 800; font-size: .92rem; border: 1px solid transparent; }
.kaynak-link:hover { border-color: var(--ders); }
.kaynak-link small { display: block; color: var(--soluk); font-weight: 700; }
.kaynak-link .k-ikon { font-size: 24px; }

/* Profil */
.avatar-sec { display: flex; flex-wrap: wrap; gap: 8px; }
.avatar-sec button { width: 54px; height: 54px; font-size: 30px; border-radius: 16px; border: 2px solid var(--cizgi); background: var(--yuzey); }
.avatar-sec button.secili { border-color: var(--vurgu); background: var(--vurgu-acik); transform: scale(1.06); }
.form-satir { display: grid; gap: 6px; margin-bottom: 16px; }
.form-satir label { font-weight: 900; }
.girdi { border: 2px solid var(--cizgi); background: var(--yuzey); border-radius: 12px; padding: 10px 14px; width: 100%; max-width: 420px; }
.girdi:focus { outline: none; border-color: var(--vurgu); }
.anahtar-grup { display: inline-flex; background: var(--yuzey2); border-radius: 12px; padding: 4px; gap: 4px; flex-wrap: wrap; }
.anahtar-grup button { border: 0; background: transparent; padding: 7px 14px; border-radius: 9px; font-weight: 800; }
.anahtar-grup button.secili { background: var(--yuzey); box-shadow: var(--golge); color: var(--vurgu); }

/* Bildirimler, modal, konfeti */
#bildirimler { position: fixed; top: 70px; right: 16px; z-index: 100; display: grid; gap: 8px; pointer-events: none; max-width: calc(100vw - 32px); }
.bildirim { pointer-events: auto; display: flex; align-items: center; gap: 10px; background: var(--yuzey); color: var(--metin); border: 1px solid var(--cizgi); border-left: 5px solid var(--altin); border-radius: 14px; padding: 10px 14px; box-shadow: var(--golge-buyuk); font-weight: 800; animation: kay .35s cubic-bezier(.2, .8, .2, 1); }
.bildirim.cik { animation: kaybol .3s forwards; }
.bildirim .b-ikon { font-size: 26px; }
.bildirim small { display: block; color: var(--soluk); font-weight: 700; }
@keyframes kay { from { opacity: 0; transform: translateX(40px); } }
@keyframes kaybol { to { opacity: 0; transform: translateX(40px); } }
.xp-ucan { position: fixed; z-index: 120; pointer-events: none; font-weight: 900; color: var(--altin); font-size: 1.3rem; text-shadow: 0 2px 0 rgba(0, 0, 0, .15); animation: ucus 1s ease-out forwards; }
@keyframes ucus { to { transform: translateY(-60px); opacity: 0; } }
.modal { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; padding: 16px; background: rgba(10, 8, 25, .55); backdrop-filter: blur(4px); }
.modal[hidden] { display: none; }
.modal-kutu { background: var(--yuzey); border-radius: 26px; padding: 28px; max-width: 440px; width: 100%; text-align: center; box-shadow: var(--golge-buyuk); animation: buyu .35s cubic-bezier(.2, 1.4, .4, 1); }
.modal-kutu .buyuk { font-size: 72px; line-height: 1.1; }
.modal-kutu .btn-grup { display: flex; gap: 10px; justify-content: center; margin-top: 18px; flex-wrap: wrap; }
@keyframes buyu { from { transform: scale(.7); opacity: 0; } }
#konfeti { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 150; }

/* Arama */
.arama-kutu { position: relative; margin-bottom: 14px; }
.arama-kutu input { width: 100%; max-width: none; padding-left: 40px; }
.arama-kutu::before { content: '🔎'; position: absolute; left: 13px; top: 50%; transform: translateY(-50%); }

/* Özet / formül kâğıdı */
.ozet-kagit .ozet-konu { break-inside: avoid; margin-bottom: 18px; }
.ozet-kagit .hap-liste li { box-shadow: none; padding: 8px 10px; }
@media print {
  .ust, .alt-nav, .alt, .sekmeler, .btn, .geri, #bildirimler { display: none !important; }
  body { background: #fff; color: #000; }
  main { padding: 0; }
  .kart-k, .anlatim-bolum, .hap-liste li { box-shadow: none; border-color: #ccc; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}