/* Tasarım dili: ÖSYM optik formu. Basılı kısımlar (daireler, çizgiler) pembe-kırmızı, işaretler kurşun kalem grafiti. */
:root {
  --kagit: #F7F6F3;
  --yuzey: #FFFFFF;
  --grafit: #24252B;
  --soluk: #666772;
  --optik: #D9455F;
  --optik-acik: #EFB9C3;
  --cizgi: #EBD5D9;
  --on-grafit: #F7F6F3;
  --kenar: max(16px, env(safe-area-inset-left, 0px));
}
@media (prefers-color-scheme: dark) {
  :root:not([data-tema="acik"]) {
    --kagit: #16171B; --yuzey: #1F2025; --grafit: #ECECF0; --soluk: #A2A3AD;
    --optik: #F0728A; --optik-acik: #70404B; --cizgi: #3A2D32; --on-grafit: #16171B;
  }
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { background: var(--kagit); }
body {
  margin: 0; background: var(--kagit); color: var(--grafit);
  font-family: "Bricolage Grotesque", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px; line-height: 1.45; font-variant-numeric: tabular-nums;
  padding-top: env(safe-area-inset-top, 0px);
}
#app { max-width: 560px; margin: 0 auto; padding: 18px var(--kenar) calc(96px + env(safe-area-inset-bottom, 0px)); }
h1 { font-size: 27px; line-height: 1.15; font-weight: 800; letter-spacing: -0.02em; margin: 0; }
h2 { font-size: 19px; font-weight: 700; margin: 0 0 4px; letter-spacing: -0.01em; }
h3 { font-size: 16px; font-weight: 600; margin: 0; line-height: 1.3; }
p { margin: 0 0 10px; }
button { font: inherit; color: inherit; cursor: pointer; }
input, textarea {
  font: inherit; color: var(--grafit); background: var(--yuzey); width: 100%;
  border: 1.5px solid var(--optik-acik); border-radius: 10px; padding: 11px 12px; min-height: 46px;
}
textarea { min-height: 110px; resize: vertical; }
:focus-visible { outline: 3px solid var(--optik); outline-offset: 2px; }
.soluk { color: var(--soluk); }
.kucuk { font-size: 13px; }
.bolum { font-size: 14px; font-weight: 700; color: var(--soluk); margin: 26px 0 2px; }
.ust { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; margin-bottom: 6px; }

/* ana düğmeler */
.btn {
  display: block; width: 100%; min-height: 50px; border-radius: 12px; border: 1.5px solid var(--grafit);
  background: var(--grafit); color: var(--on-grafit); font-weight: 700; padding: 0 18px; margin-top: 14px;
}
.btn.ikincil { background: transparent; color: var(--grafit); }
.btn.sade { border-color: var(--optik-acik); font-weight: 600; }
.btn[disabled] { opacity: .45; }
.yan { display: flex; gap: 10px; }
.yan .btn { margin-top: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  min-height: 42px; padding: 0 14px; border-radius: 10px; background: var(--yuzey);
  border: 1.5px solid var(--optik-acik); font-weight: 600;
}
.chip.on { background: var(--grafit); border-color: var(--grafit); color: var(--on-grafit); }

/* form alanları */
.alan { margin-top: 20px; }
.alan > label { display: block; font-weight: 700; margin-bottom: 8px; }
.saat { display: flex; align-items: center; justify-content: space-between; padding: 6px 0; border-bottom: 1.5px dashed var(--cizgi); }
.stp { display: flex; align-items: center; gap: 4px; }
.stp button {
  width: 44px; height: 44px; border-radius: 50%; border: 1.5px solid var(--optik-acik); background: var(--yuzey); font-size: 22px; line-height: 1;
}
.stp output { min-width: 54px; text-align: center; font-weight: 700; }

/* optik daire: dokunma alanı 40px, çizilen daire 26px */
.b { width: 40px; height: 40px; background: none; border: 0; padding: 0; display: grid; place-items: center; }
.b::after {
  content: ""; width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--optik);
  transition: background .12s, border-color .12s, transform .12s;
}
.b:active::after { transform: scale(.9); }
.b.on::after { background: var(--grafit); border-color: var(--grafit); }
.bs { display: flex; flex-wrap: wrap; margin: 6px 0 0 -7px; }

/* görev satırı */
.satir { padding: 14px 0 10px; border-bottom: 1.5px dashed var(--cizgi); }
.satir .baslik { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.satir .sayi { background: none; border: 0; padding: 4px 0 4px 8px; font-weight: 700; white-space: nowrap; min-height: 32px; }
.satir.bitti h3 { color: var(--soluk); }
.meta { font-size: 13px; color: var(--soluk); margin-top: 2px; }
.etiket { font-weight: 600; }
.etiket.tekrar { color: var(--optik); }
.test-btn { margin-top: 10px; }
.test-btn .btn { margin: 0; min-height: 44px; }

/* özet ve uyarılar */
.seri { text-align: center; border: 2px solid var(--optik); border-radius: 14px; padding: 6px 12px 7px; min-width: 76px; }
.seri b { display: block; font-size: 26px; line-height: 1.1; font-weight: 800; }
.seri span { font-size: 12px; color: var(--soluk); }
.ozet { margin: 14px 0 0; font-weight: 700; }
.cizgi { height: 8px; border-radius: 4px; background: var(--cizgi); margin-top: 6px; overflow: hidden; }
.cizgi i { display: block; height: 100%; background: var(--grafit); border-radius: 4px; transition: width .2s; }
.not { border-left: 3px solid var(--optik); padding: 2px 0 2px 12px; margin: 16px 0 0; font-size: 14px; }
.ipucu { background: var(--yuzey); border: 1.5px solid var(--optik-acik); border-radius: 12px; padding: 12px 14px; margin: 14px 0 0; font-size: 14px; }
.ipucu .btn { min-height: 42px; margin-top: 8px; }

/* alt gezinme */
#nav {
  position: fixed; left: 0; right: 0; bottom: 0; display: none; background: var(--kagit);
  border-top: 1.5px solid var(--cizgi); padding-bottom: env(safe-area-inset-bottom, 0px); z-index: 5;
}
#nav .ic { max-width: 560px; margin: 0 auto; display: flex; }
#nav button { flex: 1; min-height: 58px; background: none; border: 0; color: var(--soluk); font-size: 13px; display: grid; justify-items: center; align-content: center; gap: 4px; }
#nav button::before { content: ""; width: 12px; height: 12px; border-radius: 50%; border: 2px solid var(--optik); }
#nav button.on { color: var(--grafit); font-weight: 700; }
#nav button.on::before { background: var(--grafit); border-color: var(--grafit); }

/* takvim */
.ay { display: flex; align-items: center; justify-content: space-between; margin: 10px 0 8px; }
.ay button { width: 44px; height: 44px; border-radius: 50%; border: 1.5px solid var(--optik-acik); background: var(--yuzey); font-size: 20px; }
.ay h2 { margin: 0; text-transform: capitalize; }
.izgara { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.gh { text-align: center; font-size: 12px; color: var(--soluk); padding-bottom: 4px; }
.gun { display: grid; justify-items: center; gap: 3px; padding: 5px 0 4px; border: 0; border-radius: 10px; background: none; min-height: 58px; }
.gun .n { font-size: 12px; color: var(--soluk); line-height: 1; }
.gun .kb { width: 28px; height: 28px; border-radius: 50%; border: 2px solid var(--cizgi); position: relative; }
.gun .nokta { width: 5px; height: 5px; border-radius: 50%; }
.gun.bugun { outline: 2px solid var(--optik); outline-offset: -2px; }
.gun.bugun .n { color: var(--grafit); font-weight: 700; }
.gun.bos { visibility: hidden; }
.gun.tam .kb { background: var(--grafit); border-color: var(--grafit); }
.gun.eksik .kb { background: linear-gradient(90deg, var(--grafit) 50%, transparent 50%); border-color: var(--grafit); }
.gun.hic .kb { border-color: var(--optik); }
.gun.hic .kb::after { content: "×"; position: absolute; inset: 0; display: grid; place-items: center; color: var(--optik); font-size: 22px; line-height: 1; font-weight: 600; }
.gun.bekliyor .kb { border-color: var(--optik); }
.gun.dinlenme .kb { border-style: dashed; border-color: var(--optik-acik); }
.gun .nokta.var { background: var(--optik); }
.anahtar { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 14px; font-size: 13px; color: var(--soluk); }
.anahtar span { display: inline-flex; align-items: center; gap: 6px; }
.anahtar .kb { display: inline-block; width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--optik); position: relative; }
.anahtar .kb.t { background: var(--grafit); border-color: var(--grafit); }
.anahtar .kb.e { background: linear-gradient(90deg, var(--grafit) 50%, transparent 50%); border-color: var(--grafit); }
.anahtar .kb.h::after { content: "×"; position: absolute; inset: -3px 0 0; text-align: center; color: var(--optik); font-size: 15px; line-height: 17px; }
.anahtar .kb.o { width: 6px; height: 6px; border: 0; background: var(--optik); }

/* dersler */
.ders { display: block; width: 100%; text-align: left; background: none; border: 0; border-bottom: 1.5px dashed var(--cizgi); padding: 14px 0; }
.ders .baslik { display: flex; justify-content: space-between; align-items: baseline; }
.geri { background: none; border: 0; padding: 8px 0; color: var(--soluk); font-weight: 600; min-height: 44px; }
.unite { margin-top: 22px; display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.kz { display: flex; gap: 10px; align-items: flex-start; width: 100%; text-align: left; background: none; border: 0; border-bottom: 1px solid var(--cizgi); padding: 10px 0; min-height: 48px; }
.kz .i { width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--optik-acik); flex: none; margin-top: 2px; position: relative; }
.kz .i.tam { background: var(--grafit); border-color: var(--grafit); }
.kz .i.beyan { background: var(--grafit); border-color: var(--grafit); opacity: .45; }
.kz .i.yarim { background: linear-gradient(90deg, var(--grafit) 50%, transparent 50%); border-color: var(--grafit); }
.kz .i.eksik { border-color: var(--optik); }
.kz .i.eksik::after { content: "×"; position: absolute; inset: -4px 0 0; text-align: center; color: var(--optik); font-size: 17px; line-height: 20px; }

/* anket */
.soru { padding: 12px 0 14px; border-bottom: 1.5px dashed var(--cizgi); }
.soru .ad { font-weight: 600; line-height: 1.3; margin-bottom: 8px; }
.soru .ad small { color: var(--soluk); font-weight: 400; margin-left: 6px; }
.sec { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.sec .chip { min-height: 46px; padding: 0 4px; font-size: 13px; line-height: 1.15; }
.hizli { display: flex; gap: 8px; margin-top: 8px; }
.hizli .chip { font-size: 13px; min-height: 38px; }
.adim { position: sticky; top: 0; background: var(--kagit); padding: 10px 0 8px; z-index: 3; border-bottom: 1.5px solid var(--cizgi); margin: 0 calc(var(--kenar) * -1); padding-left: var(--kenar); padding-right: var(--kenar); }

/* alt sayfa ve bildirim */
#sheet { position: fixed; inset: 0; display: none; z-index: 20; }
#sheet.acik { display: block; }
#sheet .perde { position: absolute; inset: 0; background: rgba(20, 20, 26, .45); }
#sheet .kart {
  position: absolute; left: 0; right: 0; bottom: 0; max-height: 86vh; overflow: auto; margin: 0 auto; max-width: 560px;
  background: var(--kagit); border-radius: 20px 20px 0 0; padding: 20px var(--kenar) calc(22px + env(safe-area-inset-bottom, 0px));
}
#sheet .tut { width: 40px; height: 4px; border-radius: 2px; background: var(--cizgi); margin: -8px auto 14px; }
.sonuc { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.sonuc label { font-weight: 600; font-size: 14px; display: block; margin-bottom: 6px; }
#toast {
  position: fixed; left: 50%; bottom: calc(86px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%) translateY(20px);
  background: var(--grafit); color: var(--on-grafit); padding: 11px 16px; border-radius: 12px; font-size: 14px; max-width: min(92vw, 460px);
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 30; text-align: center;
}
#toast.goster { opacity: 1; transform: translateX(-50%); }
.kv { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1.5px dashed var(--cizgi); }
.kv b { text-align: right; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}