/* ==========================================================================
   Is Ilani ve Basvuru Sitesi - stil dosyasi
   Koyu, modern, kurumsal tema. Mobil oncelikli.
   ========================================================================== */

:root {
  --bg: #0E1116;
  --surface: #161A21;
  --surface-2: #1E232C;
  --surface-3: #262C37;
  --border: #2A3039;
  --border-parlak: #39414E;
  --text: #F2F4F8;
  --muted: #98A1B0;
  --muted-koyu: #6B7280;
  --accent: #E0A82E;
  --accent-hover: #F0B93E;
  --accent-soluk: rgba(224, 168, 46, 0.12);
  --accent-yazi: #14181F;
  --accent-golge: rgba(224, 168, 46, 0.22);
  --accent-golge-guclu: rgba(224, 168, 46, 0.3);
  --danger: #E86A6A;
  --danger-soluk: rgba(232, 106, 106, 0.1);
  --success: #4FBF8B;

  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --maxw: 1080px;

  --golge-yumusak: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.28);
  --golge-derin: 0 4px 12px rgba(0, 0, 0, 0.35), 0 24px 64px rgba(0, 0, 0, 0.45);

  --yazi: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", "Noto Sans", Arial, sans-serif;

  --gecis: 160ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--yazi);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
}

p {
  margin: 0;
}

a {
  color: var(--accent);
}

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

.kabuk {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: clamp(18px, 5vw, 32px);
}

/* [hidden] her zaman kazanmali: .dugme gibi display tanimlayan siniflar
   aksi halde ozniteligi gecersiz kilar. */
[hidden] {
  display: none !important;
}

.gizli-erisim {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ------------------------------------------------------------------ ust bar */

.ust-bar {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 5;
  padding-top: max(18px, env(safe-area-inset-top));
  padding-bottom: 18px;
}

.ust-bar__ic {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.marka {
  white-space: nowrap;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}

.ust-bar__baglanti {
  white-space: nowrap;
  color: var(--muted);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(6px);
  transition: color var(--gecis), border-color var(--gecis), background var(--gecis);
}

.ust-bar__baglanti:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.09);
}

/* -------------------------------------------------------------------- hero */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100vh;
  min-height: 100svh;
  padding-block: 120px 96px;
  isolation: isolate;
  overflow: hidden;

  /* Katmanlar ustten alta:
     1) karartma gradyani
     2) kullanicinin fotografi (public/img/hero.jpg) - dosya yoksa bu katman cizilmez
     3-5) fotograf yokken devreye giren yedek doku ve gradyanlar */
  background-image:
    /* Metnin oturdugu sol tarafi karartan perde: fotograf ne kadar parlak
       veya kalabalik olursa olsun basligin okunurlugu garanti altina alinir. */
    linear-gradient(101deg, rgba(9, 11, 15, 0.86) 0%, rgba(9, 11, 15, 0.62) 44%, rgba(9, 11, 15, 0.22) 74%, rgba(9, 11, 15, 0.4) 100%),
    linear-gradient(180deg, rgba(10, 12, 16, 0.34) 0%, rgba(10, 12, 16, 0.3) 48%, rgba(14, 17, 22, 0.96) 100%),
    url("/img/hero.jpg"),
    repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.02) 0 2px, transparent 2px 11px),
    radial-gradient(900px 620px at 82% 8%, rgba(224, 168, 46, 0.16) 0%, transparent 58%),
    radial-gradient(1150px 780px at 68% 26%, #3A465C 0%, transparent 64%),
    radial-gradient(760px 620px at 8% 92%, #1D2836 0%, transparent 62%),
    linear-gradient(158deg, #182031 0%, #0D1219 56%, var(--bg) 100%);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: var(--bg);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.45);
}

/* Alt kenardaki yumusak gecis, sayfanin devamiyla birlesmeyi saglar. */
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 180px;
  background: linear-gradient(180deg, transparent 0%, var(--bg) 100%);
  pointer-events: none;
  z-index: -1;
}

.hero__ic {
  max-width: 720px;
}

.etiket {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soluk);
  border: 1px solid rgba(224, 168, 46, 0.28);
  padding: 7px 15px;
  border-radius: 999px;
}

.etiket__nokta {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}

.hero__baslik {
  margin-top: 22px;
  font-size: clamp(34px, 7.2vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.hero__baslik span {
  color: var(--accent);
}

.hero__metin {
  margin-top: 20px;
  max-width: 56ch;
  font-size: clamp(15.5px, 2.2vw, 18px);
  color: #C7CDD8;
  text-wrap: pretty;
}

.rozetler {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  padding: 0;
  list-style: none;
}

.rozet {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: #D4DAE4;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 8px 14px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}

.rozet svg {
  width: 15px;
  height: 15px;
  flex: none;
  color: var(--accent);
}

.hero__eylem {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: 36px;
}

.hero__ipucu {
  font-size: 13.5px;
  color: var(--muted);
}

.asagi-ok {
  position: absolute;
  left: 50%;
  bottom: max(26px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  color: var(--muted);
  display: grid;
  place-items: center;
  animation: zipla 2.4s ease-in-out infinite;
}

.asagi-ok svg {
  width: 22px;
  height: 22px;
}

@keyframes zipla {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.55; }
  50% { transform: translate(-50%, 7px); opacity: 1; }
}

/* ----------------------------------------------------------------- butonlar */

.dugme {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 13px 28px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 16px;
  font-weight: 650;
  letter-spacing: -0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--gecis), border-color var(--gecis), transform var(--gecis),
    color var(--gecis), box-shadow var(--gecis);
}

.dugme--birincil {
  background: var(--accent);
  color: var(--accent-yazi);
  box-shadow: 0 6px 20px var(--accent-golge);
}

.dugme--birincil:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 10px 28px var(--accent-golge-guclu);
}

.dugme--birincil:active {
  transform: translateY(0);
}

.dugme--ikincil {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border);
}

.dugme--ikincil:hover {
  background: var(--surface-3);
  border-color: var(--border-parlak);
}

.dugme--tam {
  width: 100%;
  min-height: 54px;
  font-size: 16.5px;
}

.dugme[disabled],
.dugme[aria-disabled="true"] {
  opacity: 0.62;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.donen {
  width: 17px;
  height: 17px;
  border: 2px solid transparent;
  border-top-color: var(--accent-yazi);
  border-radius: 50%;
  animation: don 0.7s linear infinite;
  flex: none;
}

@keyframes don {
  to { transform: rotate(360deg); }
}

/* ------------------------------------------------------------- form bolumu */

.basvuru {
  position: relative;
  padding-block: clamp(56px, 9vw, 96px) clamp(64px, 10vw, 110px);
}

.bolum-basligi {
  text-align: center;
  max-width: 620px;
  margin: 0 auto clamp(30px, 5vw, 44px);
}

.bolum-basligi h2 {
  font-size: clamp(26px, 4.6vw, 38px);
  letter-spacing: -0.03em;
}

.bolum-basligi p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 15.5px;
}

.bolum-basligi strong {
  color: var(--accent);
  font-weight: 600;
}

.kart {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--golge-derin);
  padding: clamp(22px, 4.4vw, 40px);
  max-width: 760px;
  margin: 0 auto;
}

/* Tarayicinin varsayilan fieldset cercevesi ve bosluklari sifirlanir. */
.grup {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.grup + .grup {
  margin-top: 34px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

.grup__baslik {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 20px;
}

.grup__sira {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--surface-3);
  border: 1px solid var(--border-parlak);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  flex: none;
}

.grup__baslik h3 {
  font-size: 16.5px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.izgara {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
}

.alan--genis {
  grid-column: 1 / -1;
}

/* --------------------------------------------------------------- form alani */

.alan {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.alan__etiket {
  font-size: 13.5px;
  font-weight: 600;
  color: #C9D0DB;
  letter-spacing: 0.01em;
}

.alan__etiket .yildiz {
  color: var(--accent);
  margin-left: 2px;
}

.girdi,
.secim {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 16px; /* iOS'ta otomatik yakinlastirmayi engeller */
  line-height: 1.4;
  transition: border-color var(--gecis), background var(--gecis), box-shadow var(--gecis);
  appearance: none;
}

.girdi::placeholder {
  color: var(--muted-koyu);
}

.girdi:hover:not(:disabled),
.secim:hover:not(:disabled) {
  border-color: var(--border-parlak);
}

.girdi:focus,
.secim:focus {
  outline: none;
  border-color: var(--accent);
  background: #232833;
  box-shadow: 0 0 0 3px var(--accent-soluk);
}

.girdi:disabled,
.secim:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.secim {
  padding-right: 42px;
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2398A1B0' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

.secim option {
  background: var(--surface-2);
  color: var(--text);
}

/* Tarih girisinin takvim simgesini temaya uydurur. */
input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(66%) sepia(8%) saturate(390%) hue-rotate(184deg) brightness(93%);
  cursor: pointer;
  opacity: 0.85;
}

.alan__yardim {
  font-size: 12.5px;
  color: var(--muted-koyu);
}

.alan__hata {
  display: none;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--danger);
  line-height: 1.45;
}

.alan.hatali .girdi,
.alan.hatali .secim {
  border-color: var(--danger);
  background: var(--danger-soluk);
}

.alan.hatali .girdi:focus,
.alan.hatali .secim:focus {
  box-shadow: 0 0 0 3px rgba(232, 106, 106, 0.16);
}

.alan.hatali .alan__hata {
  display: block;
}

.alan.hatali .alan__yardim {
  display: none;
}

.alan.hatali .segmentler {
  border-color: var(--danger);
}

/* ------------------------------------------------------- segment secicileri */

.segmentler {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 6px;
  padding: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.segmentler input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 1px;
  height: 1px;
}

.segmentler label {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 42px;
  padding: 9px 12px;
  border-radius: 7px;
  color: var(--muted);
  font-size: 14.5px;
  font-weight: 550;
  cursor: pointer;
  user-select: none;
  transition: background var(--gecis), color var(--gecis), box-shadow var(--gecis);
}

.segmentler label:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.045);
}

.segmentler input:checked + label {
  background: var(--accent);
  color: var(--accent-yazi);
  font-weight: 650;
  box-shadow: 0 2px 8px rgba(224, 168, 46, 0.24);
}

.segmentler input:focus-visible + label {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ------------------------------------------------------------ uyari seridi */

.uyari {
  display: none;
  align-items: flex-start;
  gap: 11px;
  margin-bottom: 22px;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  background: var(--danger-soluk);
  border: 1px solid rgba(232, 106, 106, 0.3);
  color: #F3B5B5;
  font-size: 14.5px;
  line-height: 1.5;
}

.uyari.acik {
  display: flex;
}

.uyari svg {
  width: 18px;
  height: 18px;
  flex: none;
  margin-top: 2px;
  color: var(--danger);
}

/* --------------------------------------------------------------- gonder alt */

.gonder-alani {
  margin-top: 32px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}

.kvkk {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--muted-koyu);
  text-align: center;
  line-height: 1.55;
}

/* ------------------------------------------------------------- onay paneli */

.onay {
  text-align: center;
  padding: clamp(30px, 6vw, 52px) clamp(20px, 4vw, 36px);
}

.onay__isaret {
  display: grid;
  place-items: center;
  width: 68px;
  height: 68px;
  margin: 0 auto 22px;
  border-radius: 50%;
  background: rgba(79, 191, 139, 0.13);
  border: 1px solid rgba(79, 191, 139, 0.32);
  color: var(--success);
}

.onay__isaret svg {
  width: 32px;
  height: 32px;
}

.onay h2 {
  font-size: clamp(23px, 4vw, 30px);
}

.onay p {
  margin-top: 13px;
  color: var(--muted);
  font-size: 15.5px;
  max-width: 46ch;
  margin-inline: auto;
}

.basvuru-no {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  margin-top: 26px;
  padding: 15px 34px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.basvuru-no span {
  font-size: 11.5px;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-koyu);
}

.basvuru-no strong {
  font-size: 27px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.onay__eylem {
  margin-top: 28px;
}

/* ------------------------------------------------------------------- altlik */

.altlik {
  border-top: 1px solid var(--border);
  padding-block: 30px;
  padding-bottom: max(30px, env(safe-area-inset-bottom));
  color: var(--muted-koyu);
  font-size: 13.5px;
}

.altlik__ic {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
}

.altlik a {
  color: var(--muted);
  text-decoration: none;
}

.altlik a:hover {
  color: var(--text);
}

/* ------------------------------------------------------------ duyarli yapi */

@media (max-width: 720px) {
  .izgara {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-block: 110px 86px;
  }

  .hero__eylem .dugme {
    width: 100%;
  }

  .hero__ipucu {
    width: 100%;
    text-align: center;
  }

  .kart {
    padding: 22px 18px;
    border-radius: var(--radius);
  }

  .altlik__ic {
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 430px) {
  /* Dar ekranda ust bardaki baglanti gizlenir; hero'daki "Hemen Basvur"
     dugmesi ayni isi zaten goruyor ve marka adi tek satirda kalir. */
  .ust-bar__baglanti {
    display: none;
  }

  .marka {
    font-size: 16px;
  }
}

@media (max-width: 380px) {
  /* Cok dar ekranlarda segmentler yan yana kalir, sadece yazi biraz kucultulur. */
  .segmentler label {
    font-size: 13.5px;
    padding-inline: 6px;
  }
}

@media (max-width: 330px) {
  /* iPhone SE gibi en dar cihazlarda alt alta gecerler. */
  .segmentler {
    grid-auto-flow: row;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}