/* ═══════════════════════════════════════════════════════════════
   Matematik AI — AuraMobileLabs
   ═══════════════════════════════════════════════════════════════ */

:root {
  --zemin: #070b16;
  --zemin-2: #0b1120;
  --yuzey: #111a30;
  --yuzey-2: #17223c;
  --yuzey-3: #1f2d4c;
  --cizgi: rgba(147, 179, 235, 0.13);
  --cizgi-2: rgba(147, 179, 235, 0.24);
  --metin: #e9eefb;
  --metin-2: #a6b6d6;
  --metin-3: #7086aa;
  --mavi: #60a5fa;
  --mavi-2: #3b82f6;
  --mor: #c084fc;
  --yesil: #34d399;
  --kirmizi: #f87171;
  --sari: #fbbf24;
  --golge: 0 22px 50px -22px rgba(0, 0, 0, 0.78);
  --gecis: 200ms cubic-bezier(0.23, 1, 0.32, 1);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--zemin);
  color: var(--metin);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(1000px 620px at 8% -10%, rgba(96, 165, 250, 0.14), transparent 60%),
    radial-gradient(880px 560px at 98% 6%, rgba(192, 132, 252, 0.12), transparent 58%),
    radial-gradient(760px 540px at 52% 106%, rgba(52, 211, 153, 0.06), transparent 60%);
}

button, input, select, textarea { font-family: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
svg { width: 100%; height: 100%; display: block; }

.uygulama { position: relative; z-index: 1; display: grid; grid-template-columns: 264px 1fr; height: 100vh; }

/* ─────────── KENAR ─────────── */

.kenar {
  background: linear-gradient(178deg, var(--zemin-2), var(--zemin));
  border-right: 1px solid var(--cizgi);
  display: flex; flex-direction: column; padding: 22px 16px 18px; gap: 20px;
}

.marka { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; padding: 0 4px; }
.marka-logo {
  width: 44px; height: 44px; flex: none; padding: 9px; border-radius: 13px;
  background: linear-gradient(140deg, rgba(96, 165, 250, 0.16), rgba(192, 132, 252, 0.14));
  border: 1px solid var(--cizgi-2);
}
.marka-ad { display: flex; flex-direction: column; line-height: 1.22; }
.marka-ad strong { font-size: 15.5px; font-weight: 700; letter-spacing: -0.01em; }
.marka-ad em { font-style: normal; font-size: 10px; font-weight: 600; letter-spacing: 0.13em; text-transform: uppercase; color: var(--metin-3); }

.menu { display: flex; flex-direction: column; gap: 3px; flex: 1; }

.menu-oge {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 13px; border-radius: 11px;
  font-size: 14px; font-weight: 500; color: var(--metin-2);
  transition: background var(--gecis), color var(--gecis);
  text-align: left;
}
.menu-oge:hover { background: var(--yuzey); color: var(--metin); }
.menu-oge.aktif {
  background: linear-gradient(96deg, rgba(96, 165, 250, 0.16), rgba(96, 165, 250, 0.04));
  color: var(--metin);
  box-shadow: inset 0 0 0 1px rgba(96, 165, 250, 0.26);
}
.menu-oge.aktif .mi { color: var(--mavi); }
.mi { width: 19px; height: 19px; flex: none; color: var(--metin-3); transition: color var(--gecis); }

.istatistik-kart {
  background: var(--yuzey); border: 1px solid var(--cizgi);
  border-radius: 14px; padding: 14px 16px;
}
.ik-etiket { font-size: 10px; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; color: var(--metin-3); }
.ik-satir { display: flex; gap: 22px; margin-top: 10px; }
.ik-satir div { display: flex; flex-direction: column; }
.ik-satir strong { font-size: 20px; font-weight: 700; color: var(--mavi); }
.ik-satir span { font-size: 11px; color: var(--metin-3); font-weight: 600; }

/* ─────────── İÇERİK ─────────── */

.icerik { display: flex; flex-direction: column; min-width: 0; min-height: 0; }

.ust-bar {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 28px; border-bottom: 1px solid var(--cizgi);
  background: rgba(7, 11, 22, 0.74); backdrop-filter: blur(18px); flex: none;
}
.sayfa-baslik { font-size: 19px; font-weight: 700; letter-spacing: -0.015em; flex: 1; }
.menu-dugme { display: none; width: 34px; height: 34px; color: var(--metin-2); }

.durum-rozet {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: 999px;
  background: var(--yuzey); border: 1px solid var(--cizgi);
  font-size: 12.5px; font-weight: 600; color: var(--metin-2);
}
.durum-rozet .nokta { width: 7px; height: 7px; border-radius: 50%; background: var(--yesil); box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.16); }
.durum-rozet.calisiyor .nokta { background: var(--sari); box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.16); animation: nabiz 1.1s infinite; }
.durum-rozet.hata .nokta { background: var(--kirmizi); box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.16); }
@keyframes nabiz { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.sayfa { display: none; flex: 1; min-height: 0; overflow-y: auto; }
.sayfa.aktif { display: block; }

/* ─────────── ORTAK ─────────── */

.bos-durum {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 64px 28px; gap: 12px;
}
.bos-simge {
  width: 58px; height: 58px; padding: 15px; border-radius: 18px;
  background: var(--yuzey); border: 1px solid var(--cizgi); color: var(--mavi); margin-bottom: 6px;
}
.bos-durum h2 { font-size: 19px; font-weight: 700; }
.bos-durum p { font-size: 14px; color: var(--metin-2); max-width: 440px; line-height: 1.65; }

.dugme {
  padding: 10px 18px; border-radius: 10px;
  border: 1px solid var(--cizgi-2); background: var(--yuzey);
  font-size: 13.5px; font-weight: 600; color: var(--metin);
  transition: transform var(--gecis), background var(--gecis), border-color var(--gecis);
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
}
.dugme:hover { background: var(--yuzey-3); border-color: var(--mavi); }
.dugme:active { transform: scale(0.97); }
.dugme.birincil {
  background: linear-gradient(96deg, var(--mavi), var(--mavi-2));
  border-color: transparent; color: #04152e; font-weight: 700;
}
.dugme.birincil:hover { filter: brightness(1.09); }
.dugme.buyuk { width: 100%; padding: 14px 20px; font-size: 14.5px; }
.dugme svg { width: 17px; height: 17px; }

.secim { display: flex; flex-direction: column; gap: 6px; }
.secim > span { font-size: 10.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--metin-3); }
.secim select, .secim input {
  background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: 10px;
  padding: 10px 12px; font-size: 13.5px; font-weight: 500; min-width: 160px;
  transition: border-color var(--gecis);
}
.secim select:focus { outline: none; border-color: var(--mavi); }
.secim option { background: var(--yuzey-2); }

.cip {
  padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--cizgi); background: var(--yuzey);
  font-size: 12.5px; font-weight: 600; color: var(--metin-2);
  transition: all var(--gecis);
}
.cip:hover { border-color: var(--cizgi-2); color: var(--metin); transform: translateY(-1px); }
.cip.aktif { background: rgba(96, 165, 250, 0.14); border-color: rgba(96, 165, 250, 0.42); color: var(--mavi); }

.gizli { display: none !important; }

.kart {
  background: var(--yuzey); border: 1px solid var(--cizgi);
  border-radius: 18px; padding: 24px;
}
.kart h2 { font-size: 19px; font-weight: 700; letter-spacing: -0.02em; }
.kart-alt { font-size: 13.5px; color: var(--metin-2); margin: 7px 0 20px; line-height: 1.6; }

/* ─────────── SORU ÇÖZ ─────────── */

.coz-yerlesim { display: grid; grid-template-columns: 400px 1fr; gap: 22px; padding: 24px 28px 100px; align-items: start; }

.yukleme-alani {
  border: 2px dashed var(--cizgi-2); border-radius: 15px;
  background: rgba(17, 26, 48, 0.5);
  transition: border-color var(--gecis), background var(--gecis);
  overflow: hidden;
}
.yukleme-alani.surukle { border-color: var(--mavi); background: rgba(96, 165, 250, 0.08); }
.ya-ic { padding: 32px 20px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 8px; cursor: pointer; }
.ya-simge { width: 46px; height: 46px; padding: 12px; border-radius: 14px; background: var(--yuzey-2); border: 1px solid var(--cizgi); color: var(--mavi); margin-bottom: 4px; }
.ya-ic strong { font-size: 14.5px; font-weight: 700; }
.ya-ic span { font-size: 12.5px; color: var(--metin-3); max-width: 260px; line-height: 1.55; }

.ya-onizleme { position: relative; }
.ya-onizleme img { width: 100%; display: block; max-height: 300px; object-fit: contain; background: #000; }
.onizleme-araclar { display: flex; gap: 8px; padding: 12px; justify-content: center; background: var(--yuzey-2); }

.ayrac { display: flex; align-items: center; gap: 12px; margin: 20px 0 16px; color: var(--metin-3); font-size: 12px; font-weight: 600; }
.ayrac::before, .ayrac::after { content: ""; flex: 1; height: 1px; background: var(--cizgi); }

.etiket { display: block; font-size: 10.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--metin-3); margin-bottom: 8px; }

textarea {
  width: 100%; background: var(--zemin-2); border: 1px solid var(--cizgi);
  border-radius: 12px; padding: 13px 15px; font-size: 14px; line-height: 1.65;
  resize: vertical; transition: border-color var(--gecis);
}
textarea:focus { outline: none; border-color: var(--mavi); }
textarea::placeholder { color: var(--metin-3); }

.hizli-ornekler { display: flex; flex-wrap: wrap; gap: 7px; margin: 14px 0 20px; }

/* ─────────── SONUÇ ─────────── */

.coz-sonuc { min-width: 0; }

.sonuc-kart {
  background: var(--yuzey); border: 1px solid var(--cizgi);
  border-radius: 18px; padding: 24px; margin-bottom: 18px;
}
.sk-ust { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.sk-rozet {
  padding: 6px 13px; border-radius: 9px; font-size: 11.5px; font-weight: 700;
  background: rgba(96, 165, 250, 0.14); border: 1px solid rgba(96, 165, 250, 0.3); color: var(--mavi);
}
.sk-rozet.yesil { background: rgba(52, 211, 153, 0.14); border-color: rgba(52, 211, 153, 0.32); color: var(--yesil); }
.sk-rozet.mor { background: rgba(192, 132, 252, 0.14); border-color: rgba(192, 132, 252, 0.32); color: var(--mor); }
.sk-baslik { font-size: 21px; font-weight: 700; letter-spacing: -0.02em; }

.okunan-kutu {
  background: var(--zemin-2); border: 1px solid var(--cizgi);
  border-radius: 12px; padding: 15px 17px; margin-bottom: 20px;
}
.okunan-kutu span { font-size: 10.5px; font-weight: 700; letter-spacing: 0.11em; text-transform: uppercase; color: var(--metin-3); }
.okunan-kutu p { font-size: 14.5px; line-height: 1.7; margin-top: 7px; color: var(--metin); }

.adim {
  display: grid; grid-template-columns: 40px 1fr; gap: 16px;
  padding: 18px 0; border-bottom: 1px solid var(--cizgi);
}
.adim:last-child { border-bottom: none; padding-bottom: 0; }
.adim-no {
  width: 34px; height: 34px; display: grid; place-items: center;
  border-radius: 11px; background: rgba(96, 165, 250, 0.13);
  border: 1px solid rgba(96, 165, 250, 0.26);
  font-size: 13px; font-weight: 700; color: var(--mavi);
}
.adim-baslik { font-size: 14.5px; font-weight: 700; margin-bottom: 8px; }
.adim-islem {
  font-family: "SF Mono", "Consolas", monospace;
  font-size: 14px; line-height: 1.75; color: var(--metin);
  background: var(--zemin-2); border: 1px solid var(--cizgi);
  border-radius: 9px; padding: 11px 14px; margin-bottom: 8px;
  overflow-x: auto; white-space: pre-wrap; word-break: break-word;
}
.adim-aciklama { font-size: 13.5px; line-height: 1.7; color: var(--metin-2); }

.cevap-kutu {
  margin-top: 22px; padding: 20px 22px; border-radius: 14px;
  background: linear-gradient(120deg, rgba(52, 211, 153, 0.1), rgba(52, 211, 153, 0.02));
  border: 1px solid rgba(52, 211, 153, 0.28);
}
.cevap-kutu span { font-size: 10.5px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--yesil); }
.cevap-kutu strong { display: block; font-size: 24px; font-weight: 700; margin-top: 8px; line-height: 1.35; word-break: break-word; }

.ipucu-kutu {
  margin-top: 14px; padding: 15px 18px; border-radius: 12px;
  background: rgba(251, 191, 36, 0.07); border: 1px solid rgba(251, 191, 36, 0.22);
  font-size: 13.5px; line-height: 1.7; color: var(--metin-2);
}
.ipucu-kutu strong { color: var(--sari); font-weight: 700; }

/* ─────────── KONU ANLATIMI ─────────── */

.anlat-ust { padding: 24px 28px 18px; border-bottom: 1px solid var(--cizgi); }

.buyuk-ara {
  display: flex; align-items: center; gap: 12px;
  background: var(--yuzey); border: 1px solid var(--cizgi);
  border-radius: 14px; padding: 8px 8px 8px 16px; max-width: 780px;
  transition: border-color var(--gecis);
}
.buyuk-ara:focus-within { border-color: var(--mavi); }
.buyuk-ara svg { width: 19px; height: 19px; flex: none; color: var(--metin-3); }
.buyuk-ara input { flex: 1; background: none; border: none; font-size: 14.5px; padding: 8px 0; min-width: 0; }
.buyuk-ara input:focus { outline: none; }
.buyuk-ara input::placeholder { color: var(--metin-3); }

.konu-etiketleri { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }

.anlat-alan { padding: 24px 28px 100px; max-width: 940px; margin: 0 auto; }

.anlat-baslik h2 { font-size: 25px; font-weight: 700; letter-spacing: -0.025em; }
.anlat-baslik p { font-size: 15px; color: var(--metin-2); margin-top: 9px; line-height: 1.72; }

.bolum { margin-top: 26px; }
.bolum-baslik {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--metin-3); margin-bottom: 14px;
}
.bolum-baslik::after { content: ""; flex: 1; height: 1px; background: var(--cizgi); }

.kavram-liste { display: grid; gap: 10px; }
.kavram {
  background: var(--yuzey); border: 1px solid var(--cizgi);
  border-radius: 12px; padding: 15px 17px;
}
.kavram strong { display: block; font-size: 14px; font-weight: 700; color: var(--mavi); margin-bottom: 6px; }
.kavram p { font-size: 13.5px; line-height: 1.7; color: var(--metin-2); }

.kural {
  background: var(--yuzey); border: 1px solid var(--cizgi);
  border-left: 3px solid var(--mor); border-radius: 11px;
  padding: 14px 17px; margin-bottom: 10px;
}
.kural strong { display: block; font-family: "SF Mono", "Consolas", monospace; font-size: 14.5px; color: var(--mor); margin-bottom: 6px; }
.kural p { font-size: 13.5px; line-height: 1.7; color: var(--metin-2); }

.ornek {
  background: var(--yuzey); border: 1px solid var(--cizgi);
  border-radius: 14px; padding: 18px 20px; margin-bottom: 12px;
}
.ornek-soru { font-size: 14.5px; font-weight: 700; margin-bottom: 12px; }
.ornek-cozum {
  font-family: "SF Mono", "Consolas", monospace; font-size: 13.5px; line-height: 1.85;
  color: var(--metin-2); background: var(--zemin-2);
  border: 1px solid var(--cizgi); border-radius: 10px; padding: 14px 16px;
  white-space: pre-wrap; word-break: break-word;
}
.ornek-cevap { margin-top: 11px; font-size: 14px; font-weight: 700; color: var(--yesil); }

.uyari-liste { display: grid; gap: 9px; }
.uyari-oge {
  display: flex; gap: 11px; align-items: flex-start;
  background: rgba(248, 113, 113, 0.06); border: 1px solid rgba(248, 113, 113, 0.2);
  border-radius: 11px; padding: 13px 16px;
  font-size: 13.5px; line-height: 1.65; color: var(--metin-2);
}
.uyari-oge::before { content: "!"; flex: none; width: 19px; height: 19px; border-radius: 50%; background: rgba(248, 113, 113, 0.2); color: var(--kirmizi); font-size: 12px; font-weight: 700; display: grid; place-items: center; margin-top: 1px; }

.calisma-kutu {
  margin-top: 22px; padding: 18px 20px; border-radius: 14px;
  background: linear-gradient(120deg, rgba(96, 165, 250, 0.1), rgba(96, 165, 250, 0.02));
  border: 1px solid rgba(96, 165, 250, 0.26);
}
.calisma-kutu span { font-size: 10.5px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mavi); }
.calisma-kutu p { font-size: 14px; line-height: 1.72; margin-top: 8px; color: var(--metin); }

/* ─────────── ALIŞTIRMA ─────────── */

.alis-ust { padding: 24px 28px 20px; border-bottom: 1px solid var(--cizgi); display: flex; gap: 24px; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; }
.alis-baslik h2 { font-size: 20px; font-weight: 700; letter-spacing: -0.02em; }
.alis-baslik p { font-size: 13.5px; color: var(--metin-2); margin-top: 7px; max-width: 460px; line-height: 1.6; }
.alis-form { display: flex; gap: 14px; flex-wrap: wrap; align-items: flex-end; }

.alis-alan { padding: 24px 28px 100px; max-width: 860px; margin: 0 auto; }

.alis-soru-kart {
  background: var(--yuzey); border: 1px solid var(--cizgi);
  border-radius: 18px; padding: 26px;
}
.alis-soru-ust { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.alis-soru { font-size: 18px; line-height: 1.68; font-weight: 600; margin-bottom: 22px; }
.alis-cevap-satir { display: flex; gap: 10px; flex-wrap: wrap; }
.alis-cevap-satir input {
  flex: 1; min-width: 200px; background: var(--zemin-2); border: 1px solid var(--cizgi);
  border-radius: 11px; padding: 13px 16px; font-size: 15px;
  transition: border-color var(--gecis);
}
.alis-cevap-satir input:focus { outline: none; border-color: var(--mavi); }

.alis-sonuc { margin-top: 20px; padding: 18px 20px; border-radius: 13px; font-size: 14.5px; line-height: 1.75; }
.alis-sonuc.dogru { background: rgba(52, 211, 153, 0.09); border: 1px solid rgba(52, 211, 153, 0.3); }
.alis-sonuc.yanlis { background: rgba(248, 113, 113, 0.09); border: 1px solid rgba(248, 113, 113, 0.3); }
.alis-sonuc strong { display: block; font-size: 16px; margin-bottom: 9px; }
.alis-sonuc.dogru strong { color: var(--yesil); }
.alis-sonuc.yanlis strong { color: var(--kirmizi); }

/* ─────────── GEÇMİŞ / FORMÜL ─────────── */

.gecmis-ust, .formul-ust { padding: 24px 28px 18px; border-bottom: 1px solid var(--cizgi); }
.gecmis-ust h2 { font-size: 20px; font-weight: 700; }
.gecmis-ust p { font-size: 13.5px; color: var(--metin-2); margin-top: 7px; }

.gecmis-liste, .formul-liste { padding: 22px 28px 100px; max-width: 900px; margin: 0 auto; }

.gecmis-kart {
  background: var(--yuzey); border: 1px solid var(--cizgi);
  border-radius: 14px; padding: 17px 19px; margin-bottom: 11px;
  cursor: pointer; transition: border-color var(--gecis), transform var(--gecis);
}
.gecmis-kart:hover { border-color: var(--mavi); transform: translateX(3px); }
.gk-ust { display: flex; align-items: center; gap: 10px; margin-bottom: 9px; flex-wrap: wrap; }
.gk-tarih { font-size: 11.5px; color: var(--metin-3); margin-left: auto; }
.gk-soru { font-size: 14.5px; line-height: 1.65; color: var(--metin); }
.gk-cevap { font-size: 13px; color: var(--yesil); font-weight: 700; margin-top: 8px; }

.formul-grup { margin-bottom: 26px; }
.formul-grup h3 {
  font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--metin-3); margin-bottom: 13px;
}
.formul-oge {
  background: var(--yuzey); border: 1px solid var(--cizgi);
  border-radius: 12px; padding: 14px 17px; margin-bottom: 9px;
}
.formul-oge strong { display: block; font-family: "SF Mono", "Consolas", monospace; font-size: 15px; color: var(--mavi); margin-bottom: 6px; }
.formul-oge p { font-size: 13.5px; line-height: 1.65; color: var(--metin-2); }

/* ─────────── DURUMLAR ─────────── */

.yukleniyor {
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  padding: 56px 28px; text-align: center;
}
.donen {
  width: 40px; height: 40px; border-radius: 50%;
  border: 3px solid var(--yuzey-3); border-top-color: var(--mavi);
  animation: donme 800ms linear infinite;
}
@keyframes donme { to { transform: rotate(360deg); } }
.yukleniyor p { font-size: 14px; color: var(--metin-2); font-weight: 500; }

.hata-kutu {
  padding: 22px 24px; border-radius: 14px;
  background: rgba(248, 113, 113, 0.08); border: 1px solid rgba(248, 113, 113, 0.28);
}
.hata-kutu strong { display: block; font-size: 15.5px; color: var(--kirmizi); margin-bottom: 9px; }
.hata-kutu p { font-size: 13.5px; line-height: 1.7; color: var(--metin-2); }

/* ─────────── BİLDİRİM ─────────── */

.bildirim {
  position: fixed; top: 22px; left: 50%; transform: translateX(-50%) translateY(-140%);
  padding: 12px 20px; border-radius: 12px;
  background: var(--yuzey-2); border: 1px solid var(--cizgi-2);
  font-size: 13.5px; font-weight: 600; box-shadow: var(--golge); z-index: 90;
  transition: transform 260ms var(--ease-out);
  max-width: min(520px, calc(100vw - 40px)); text-align: center;
}
.bildirim.gorunur { transform: translateX(-50%) translateY(0); }
.bildirim.hata { border-color: rgba(248, 113, 113, 0.45); color: #fca5a5; }
.bildirim.basari { border-color: rgba(52, 211, 153, 0.45); color: #6ee7b7; }

/* ─────────── KAYDIRMA ─────────── */

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--yuzey-3); border-radius: 999px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: var(--metin-3); background-clip: content-box; }

/* ─────────── DUYARLI ─────────── */

@media (max-width: 1180px) {
  .coz-yerlesim { grid-template-columns: 340px 1fr; }
}

@media (max-width: 980px) {
  .uygulama { grid-template-columns: 1fr; }
  .kenar {
    position: fixed; inset: 0 auto 0 0; width: 264px; z-index: 80;
    transform: translateX(-102%); transition: transform 260ms var(--ease-out);
    box-shadow: var(--golge);
  }
  .kenar.acik { transform: translateX(0); }
  .menu-dugme { display: block; }
  .coz-yerlesim { grid-template-columns: 1fr; }
  .coz-yerlesim, .anlat-alan, .alis-alan, .gecmis-liste, .formul-liste { padding-left: 18px; padding-right: 18px; }
  .anlat-ust, .alis-ust, .gecmis-ust, .formul-ust { padding: 18px; }
  .ust-bar { padding: 13px 16px; }
  .durum-rozet { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}