/* ==========================================================================
   Başarı Dershanesi — genel site stili
   Renkler panelden değiştirilebilsin diye CSS değişkenlerinden okunur.
   ========================================================================== */

:root {
  --kirmizi: #b91c1c;
  --kirmizi-koyu: #7f1414;
  --lacivert: #14133a;
  --lacivert-acik: #262461;
  --altin: #d9a441;
  --kagit: #f7f6f3;
  --murekkep: #191922;
  --gri: #6b6b78;
  --gri-acik: #e6e4df;
  --beyaz: #fff;

  --olcek-1: .78rem;
  --olcek-2: .875rem;
  --olcek-3: 1rem;
  --olcek-4: 1.25rem;
  --olcek-5: 1.75rem;
  --olcek-6: 2.5rem;
  --olcek-7: 3.5rem;

  --kenar: 14px;
  --golge: 0 1px 2px rgba(20, 19, 58, .06), 0 8px 24px rgba(20, 19, 58, .06);
  --golge-yuksek: 0 12px 40px rgba(20, 19, 58, .14);
  --gecis: .18s cubic-bezier(.4, 0, .2, 1);

  --govde-yazi: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                "Helvetica Neue", Arial, sans-serif;
  --baslik-yazi: var(--govde-yazi);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--kagit);
  color: var(--murekkep);
  font-family: var(--govde-yazi);
  font-size: var(--olcek-3);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, video, iframe { max-width: 100%; }
img { height: auto; display: block; }

a { color: var(--kirmizi); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--baslik-yazi);
  line-height: 1.15;
  letter-spacing: -.022em;
  margin: 0 0 .5em;
  font-weight: 800;
}
h1 { font-size: clamp(2rem, 5vw, var(--olcek-7)); }
h2 { font-size: clamp(1.5rem, 3.5vw, var(--olcek-6)); }
h3 { font-size: var(--olcek-4); }

:focus-visible {
  outline: 3px solid var(--altin);
  outline-offset: 2px;
  border-radius: 4px;
}

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

/* --- Düzen ---------------------------------------------------------------- */
.kap { width: min(1180px, 100% - 2.5rem); margin-inline: auto; }
.kap-dar { width: min(760px, 100% - 2.5rem); margin-inline: auto; }
.bolum { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.bolum-acik { background: var(--beyaz); }

.izgara { display: grid; gap: 1.5rem; }
.izgara-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.izgara-3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.izgara-4 { grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); }

.bolum-basi { max-width: 46rem; margin-bottom: 2.5rem; }
.goz-ustu {
  display: inline-block;
  font-size: var(--olcek-1);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--kirmizi);
  margin-bottom: .6rem;
}
.bolum-basi p { color: var(--gri); font-size: var(--olcek-4); margin: 0; }

/* --- Üst çubuk ve gezinti ------------------------------------------------- */
.ust-serit {
  background: var(--lacivert);
  color: rgba(255, 255, 255, .82);
  font-size: var(--olcek-1);
  padding: .55rem 0;
}
.ust-serit .kap {
  display: flex; flex-wrap: wrap; gap: 1.2rem;
  align-items: center; justify-content: space-between;
}
.ust-serit a { color: #fff; }
.ust-serit strong { color: #fff; }

.gezinti {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--gri-acik);
}
.gezinti .kap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 68px;
}
.marka { display: flex; align-items: center; gap: .7rem; }
.marka img { height: 46px; width: auto; object-fit: contain; }
.marka-yazi { font-weight: 800; letter-spacing: -.02em; color: var(--lacivert); }

.menu { display: flex; align-items: center; gap: .3rem; list-style: none; margin: 0; padding: 0; }
.menu > li { position: relative; }
.menu a {
  display: block; padding: .5rem .8rem; border-radius: 999px;
  color: var(--lacivert); font-weight: 600; font-size: var(--olcek-2);
  transition: background var(--gecis), color var(--gecis);
}
.menu a:hover { background: var(--gri-acik); text-decoration: none; }
.menu .vurgulu a {
  background: var(--kirmizi); color: #fff; padding-inline: 1.15rem;
}
.menu .vurgulu a:hover { background: var(--kirmizi-koyu); }

.alt-menu {
  position: absolute; top: 100%; left: 0; min-width: 210px;
  background: #fff; border: 1px solid var(--gri-acik); border-radius: 10px;
  box-shadow: var(--golge); padding: .35rem; list-style: none; margin: .4rem 0 0;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: all var(--gecis);
}
.menu li:hover > .alt-menu,
.menu li:focus-within > .alt-menu { opacity: 1; visibility: visible; transform: none; }

.menu-dugme {
  display: none; background: none; border: 0; cursor: pointer;
  font-size: 1.6rem; line-height: 1; color: var(--lacivert); padding: .3rem;
}

@media (max-width: 900px) {
  .menu-dugme { display: block; }
  .menu {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--gri-acik);
    padding: .5rem 1.25rem 1rem; display: none;
  }
  .menu.acik { display: flex; }
  .menu a { padding: .75rem .5rem; border-radius: 8px; }
  .alt-menu { position: static; opacity: 1; visibility: visible; transform: none;
              box-shadow: none; border: 0; padding-left: .75rem; }
}

/* --- Vitrin --------------------------------------------------------------- */
.vitrin {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 520px at 82% -10%, rgba(185, 28, 28, .34), transparent 62%),
    linear-gradient(160deg, var(--lacivert) 0%, #0c0b26 100%);
  color: #fff;
  padding: clamp(3.5rem, 9vw, 6.5rem) 0 clamp(3rem, 7vw, 5rem);
}
.vitrin::after {
  /* Not defteri çizgisi dokusu — dershane dünyasından ödünç */
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom, transparent 0 31px, rgba(255, 255, 255, .045) 31px 32px);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 78%);
}
.vitrin .kap { position: relative; z-index: 1; }
.vitrin-izgara {
  display: grid; gap: 2.5rem;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  align-items: center;
}
@media (max-width: 940px) { .vitrin-izgara { grid-template-columns: 1fr; } }

.rozet {
  display: inline-flex; align-items: center; gap: .5rem;
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18);
  color: #fff; font-size: var(--olcek-1); font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  padding: .4rem .95rem; border-radius: 999px; margin-bottom: 1.4rem;
}
.vitrin h1 { color: #fff; margin-bottom: 1rem; }
.vitrin .geri-baglanti { color: rgba(255, 255, 255, .65); font-size: .85rem; }
.vitrin-ikon { font-size: .85em; opacity: .9; }
.vitrin-metin { color: rgba(255, 255, 255, .78); font-size: var(--olcek-4); max-width: 34rem; }
.vitrin-eylem { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }

/* Geri sayım — sitenin imza öğesi
   ────────────────────────────────────────────────────────────────
   DİKKAT: Varsayılan renkler AÇIK zemine göredir. Geri sayım kutusu
   temalarda kendi bölümünde, beyaz zeminde durabiliyor; burada beyaz
   metin kullanılırsa yazı görünmez oluyor. Koyu vitrinin içinde
   kullanıldığında `.vitrin .geri-sayim` kuralları devreye girip
   beyaz metne çeviriyor. */
.geri-sayim {
  background: var(--beyaz);
  border: 1px solid var(--gri-acik);
  border-radius: 18px; padding: 1.5rem;
}
.geri-sayim h2 {
  font-size: var(--olcek-1); letter-spacing: .16em; text-transform: uppercase;
  color: var(--kirmizi); margin-bottom: 1.1rem;
}
.sayac-satir + .sayac-satir {
  margin-top: 1.1rem; padding-top: 1.1rem;
  border-top: 1px solid var(--gri-acik);
}
.sayac-ad { font-size: var(--olcek-2); color: var(--murekkep); font-weight: 600; }
.sayac-kutular { display: flex; gap: .55rem; margin-top: .5rem; }
.sayac-kutu {
  flex: 1; background: var(--kagit); border: 1px solid var(--gri-acik);
  border-radius: 10px; padding: .6rem .3rem; text-align: center;
}
.sayac-kutu b {
  display: block; font-size: var(--olcek-5); font-weight: 800;
  color: var(--murekkep);
  font-variant-numeric: tabular-nums; line-height: 1;
}
.sayac-kutu span {
  font-size: .68rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--gri);
}

/* Koyu vitrinin içindeyken (varsayılan tema) beyaz metne dön */
.vitrin .geri-sayim {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .16);
  backdrop-filter: blur(6px);
}
.vitrin .geri-sayim h2 { color: var(--altin); }
.vitrin .sayac-satir + .sayac-satir { border-top-color: rgba(255, 255, 255, .12); }
.vitrin .sayac-ad { color: rgba(255, 255, 255, .72); }
.vitrin .sayac-kutu { background: rgba(0, 0, 0, .28); border-color: transparent; }
.vitrin .sayac-kutu b { color: #fff; }
.vitrin .sayac-kutu span { color: rgba(255, 255, 255, .55); }

/* --- Düğmeler ------------------------------------------------------------- */
.dugme {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .8rem 1.6rem; border-radius: 999px; border: 1px solid transparent;
  font-weight: 700; font-size: var(--olcek-2); cursor: pointer;
  transition: transform var(--gecis), background var(--gecis), box-shadow var(--gecis);
  text-decoration: none;
}
.dugme:hover { text-decoration: none; transform: translateY(-1px); }
.dugme-ana { background: var(--kirmizi); color: #fff; box-shadow: 0 6px 20px rgba(185, 28, 28, .34); }
.dugme-ana:hover { background: var(--kirmizi-koyu); color: #fff; }
.dugme-hayalet { background: rgba(255, 255, 255, .1); color: #fff; border-color: rgba(255, 255, 255, .28); }
.dugme-hayalet:hover { background: rgba(255, 255, 255, .18); color: #fff; }
.dugme-cizgi { background: #fff; color: var(--lacivert); border-color: var(--gri-acik); }
.dugme-kucuk { padding: .5rem 1rem; font-size: var(--olcek-1); }

/* --- Kartlar -------------------------------------------------------------- */
.kart {
  background: #fff; border: 1px solid var(--gri-acik); border-radius: var(--kenar);
  overflow: hidden; transition: transform var(--gecis), box-shadow var(--gecis);
  display: flex; flex-direction: column;
}
.kart:hover { transform: translateY(-3px); box-shadow: var(--golge); }
.kart-govde { padding: 1.4rem; flex: 1; display: flex; flex-direction: column; }
.kart-gorsel { aspect-ratio: 16/10; object-fit: cover; width: 100%; background: var(--gri-acik); }
.kart h3 { margin-bottom: .4rem; font-size: var(--olcek-4); }
.kart h3 a { color: var(--lacivert); }
.kart p { color: var(--gri); font-size: var(--olcek-2); margin: 0 0 1rem; }
.kart-alt {
  margin-top: auto; display: flex; align-items: center; gap: .6rem;
  font-size: var(--olcek-1); color: var(--gri);
}

.kurs-kart { border-left: 4px solid var(--kirmizi); }
.kurs-ikon { font-size: 2rem; line-height: 1; margin-bottom: .8rem; display: block; }

.etiket {
  display: inline-block; padding: .2rem .65rem; border-radius: 999px;
  font-size: .72rem; font-weight: 700; letter-spacing: .04em;
  background: var(--gri-acik); color: var(--lacivert);
}
.etiket-kirmizi { background: #fde8e8; color: var(--kirmizi); }
.etiket-altin { background: #fdf3e0; color: #96690f; }
.etiket-lacivert { background: #e7e6f5; color: var(--lacivert); }

/* --- Sayılar -------------------------------------------------------------- */
.sayilar { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px;
           background: var(--gri-acik); border: 1px solid var(--gri-acik);
           border-radius: var(--kenar); overflow: hidden; }
.sayi-kutu { background: #fff; padding: 1.6rem 1rem; text-align: center; }
.sayi-kutu b {
  display: block; font-size: var(--olcek-6); font-weight: 800;
  color: var(--kirmizi); font-variant-numeric: tabular-nums; line-height: 1;
}
.sayi-kutu span { font-size: var(--olcek-1); color: var(--gri); font-weight: 600;
                  text-transform: uppercase; letter-spacing: .08em; }

/* --- Duyuru listesi ------------------------------------------------------- */
.duyuru-satir {
  display: flex; gap: 1.2rem; align-items: flex-start;
  padding: 1.2rem 0; border-bottom: 1px solid var(--gri-acik);
}
.duyuru-tarih {
  flex: 0 0 64px; text-align: center; background: var(--lacivert);
  color: #fff; border-radius: 10px; padding: .5rem .2rem;
}
.duyuru-tarih b { display: block; font-size: var(--olcek-4); line-height: 1;
                  font-variant-numeric: tabular-nums; }
.duyuru-tarih span { font-size: .68rem; text-transform: uppercase; letter-spacing: .08em;
                     color: rgba(255, 255, 255, .7); }
.duyuru-satir h3 { font-size: var(--olcek-3); margin-bottom: .25rem; }
.duyuru-satir p { margin: 0; color: var(--gri); font-size: var(--olcek-2); }

/* --- Galeri --------------------------------------------------------------- */
.galeri-izgara { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
.galeri-oge {
  position: relative; border-radius: 12px; overflow: hidden; aspect-ratio: 4/3;
  background: var(--gri-acik); cursor: pointer; border: 0; padding: 0; display: block; width: 100%;
}
.galeri-oge img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.galeri-oge:hover img { transform: scale(1.06); }
.galeri-oge figcaption {
  position: absolute; inset: auto 0 0 0; padding: .8rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, .78));
  color: #fff; font-size: var(--olcek-1); font-weight: 600; text-align: left;
}
.oynat-isareti {
  position: absolute; inset: 0; display: grid; place-items: center;
  color: #fff; font-size: 2.5rem; text-shadow: 0 2px 12px rgba(0, 0, 0, .6);
}

/* --- Form ----------------------------------------------------------------- */
.form-kutu {
  background: #fff; border: 1px solid var(--gri-acik);
  border-radius: var(--kenar); padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: var(--golge);
}
.alan { margin-bottom: 1.1rem; }
.alan label { display: block; font-size: var(--olcek-2); font-weight: 700;
              margin-bottom: .35rem; color: var(--lacivert); }
.alan input[type=text], .alan input[type=email], .alan input[type=tel],
.alan select, .alan textarea {
  width: 100%; padding: .7rem .9rem; font: inherit; font-size: var(--olcek-2);
  border: 1px solid var(--gri-acik); border-radius: 10px; background: #fcfcfb;
  transition: border-color var(--gecis), box-shadow var(--gecis);
}
.alan input:focus, .alan select:focus, .alan textarea:focus {
  outline: none; border-color: var(--kirmizi);
  box-shadow: 0 0 0 3px rgba(185, 28, 28, .12);
}
.alan textarea { min-height: 110px; resize: vertical; }
.alan-ikili { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .alan-ikili { grid-template-columns: 1fr; } }
.alan-hata { color: var(--kirmizi); font-size: var(--olcek-1); margin-top: .3rem; }
.onay-satir { display: flex; gap: .6rem; align-items: flex-start;
              font-size: var(--olcek-1); color: var(--gri); }
.bal-kupu { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

/* --- Bildirimler ---------------------------------------------------------- */
.bildirimler { position: fixed; top: 1rem; right: 1rem; z-index: 200;
               display: grid; gap: .5rem; max-width: min(380px, calc(100vw - 2rem)); }
.bildirim {
  padding: .85rem 1.1rem; border-radius: 10px; font-size: var(--olcek-2);
  font-weight: 600; box-shadow: var(--golge-yuksek); background: #fff;
  border-left: 4px solid var(--gri);
  animation: kaydir-gir .3s ease;
}
.bildirim-basari { border-color: #15803d; color: #14532d; background: #f0fdf4; }
.bildirim-hata { border-color: var(--kirmizi); color: #7f1d1d; background: #fef2f2; }
.bildirim-uyari { border-color: #ca8a04; color: #713f12; background: #fefce8; }
.bildirim-bilgi { border-color: var(--lacivert); color: var(--lacivert); background: #eef2ff; }
@keyframes kaydir-gir { from { opacity: 0; transform: translateX(20px); } }

/* --- Alt bilgi ------------------------------------------------------------ */
.alt-bilgi { background: var(--lacivert); color: rgba(255, 255, 255, .68);
             padding: 3.5rem 0 1.5rem; font-size: var(--olcek-2); }
.alt-bilgi h4 { color: #fff; font-size: var(--olcek-2); text-transform: uppercase;
                letter-spacing: .1em; margin-bottom: 1rem; }
.alt-bilgi a { color: rgba(255, 255, 255, .78); }
.alt-bilgi a:hover { color: #fff; }
.alt-bilgi ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.alt-izgara { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
              gap: 2.5rem; padding-bottom: 2.5rem; }
.alt-son { border-top: 1px solid rgba(255, 255, 255, .12); padding-top: 1.5rem;
           display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between;
           font-size: var(--olcek-1); }

/* --- WhatsApp düğmesi ----------------------------------------------------- */
.whatsapp {
  position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%; background: #25d366;
  display: grid; place-items: center; color: #fff; font-size: 1.6rem;
  box-shadow: 0 6px 22px rgba(37, 211, 102, .45);
}
.whatsapp:hover { text-decoration: none; transform: scale(1.06); }

/* --- Zengin içerik -------------------------------------------------------- */
.icerik-govde { font-size: 1.05rem; line-height: 1.75; }
.icerik-govde h2 { margin-top: 2rem; font-size: var(--olcek-5); }
.icerik-govde h3 { margin-top: 1.6rem; }
.icerik-govde img { border-radius: 10px; margin: 1.5rem 0; }
.icerik-govde blockquote {
  margin: 1.5rem 0; padding: .3rem 0 .3rem 1.2rem;
  border-left: 3px solid var(--kirmizi); color: var(--gri); font-style: italic;
}
.icerik-govde table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: var(--olcek-2); }
.icerik-govde th, .icerik-govde td { border: 1px solid var(--gri-acik); padding: .6rem .8rem; text-align: left; }
.icerik-govde th { background: var(--kagit); font-weight: 700; }
.icerik-govde iframe { width: 100%; aspect-ratio: 16/9; border: 0; border-radius: 10px; }

/* --- Sayfalama ------------------------------------------------------------ */
.sayfalama { display: flex; gap: .35rem; justify-content: center; margin-top: 2.5rem;
             flex-wrap: wrap; }
.sayfalama a, .sayfalama span {
  padding: .5rem .85rem; border-radius: 8px; border: 1px solid var(--gri-acik);
  background: #fff; font-size: var(--olcek-2); font-weight: 600; color: var(--lacivert);
}
.sayfalama .secili { background: var(--kirmizi); border-color: var(--kirmizi); color: #fff; }
.sayfalama .pasif { opacity: .4; }

/* --- Boş durum ------------------------------------------------------------ */
.bos-durum { text-align: center; padding: 3.5rem 1rem; color: var(--gri); }
.bos-durum b { display: block; color: var(--lacivert); font-size: var(--olcek-4);
               margin-bottom: .4rem; }