/* ==========================================================================
   Sinan Şanveren — tek ekran, koyu, imleçle canlanan sahne
   ========================================================================== */

:root {
  --bg:      #05060a;
  --ink:     #f2f3f7;
  --dim:     rgba(242, 243, 247, .58);
  --faint:   rgba(242, 243, 247, .20);
  --hair:    rgba(242, 243, 247, .13);

  /* İsim fontu. Alternatifler (index.html'deki font adresini de güncelle):
       "Space Grotesk"  → modern teknik grotesk   (ağırlık 300, ls -.01em)
       "Cinzel"         → versal, film jeneriği   (ağırlık 400, ls .08em, .name'e text-transform: uppercase)
       "Syne"           → kalın, karakterli       (ağırlık 500, ls -.01em)                                   */
  --font-display: "Jost", "Helvetica Neue", Arial, sans-serif;
  --font-weight-display: 200;
  --tracking-display: .022em;

  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;

  /* imleç konumu — JS yumuşatarak günceller */
  --mx: 50%;
  --my: 42%;

  --ease: cubic-bezier(.22, 1, .36, 1);
}

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

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-mono);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

canvas, svg { display: block; }

::selection { background: rgba(242, 243, 247, .18); }

:focus-visible { outline: 1px solid rgba(242,243,247,.55); outline-offset: 8px; }

/* --- Arka plan katmanları ------------------------------------------------ */
#scene {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  opacity: 0;
  transition: opacity 2s ease;
}
#scene.is-ready { opacity: 1; }

/* WebGL yoksa / hareket azaltmadaysa */
.bg-fallback {
  position: fixed; inset: 0; z-index: 0;
  background:
    radial-gradient(34% 40% at 62% 34%, rgba(112, 84, 200, .26), transparent 66%),
    radial-gradient(40% 44% at 30% 62%, rgba(38, 108, 178, .22), transparent 68%),
    radial-gradient(90% 75% at 50% 50%, rgba(10, 12, 26, .92), var(--bg) 74%);
}

.grain {
  position: fixed; inset: -50%; z-index: 1;
  pointer-events: none; opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* --- Sinema kadrajı ------------------------------------------------------ */
.frame { position: fixed; inset: 0; z-index: 2; pointer-events: none; }
.frame i {
  position: absolute; width: 18px; height: 18px;
  border: 1px solid var(--hair);
  opacity: 0;
  animation: frameIn 1.4s var(--ease) 1.5s forwards;
}
.frame i:nth-child(1) { top: 26px; left: 26px; border-right: 0; border-bottom: 0; }
.frame i:nth-child(2) { top: 26px; right: 26px; border-left: 0; border-bottom: 0; }
.frame i:nth-child(3) { bottom: 26px; left: 26px; border-right: 0; border-top: 0; }
.frame i:nth-child(4) { bottom: 26px; right: 26px; border-left: 0; border-top: 0; }
@keyframes frameIn { to { opacity: 1; } }

@media (max-width: 600px) {
  .frame i { width: 13px; height: 13px; }
  .frame i:nth-child(1), .frame i:nth-child(2) { top: 16px; }
  .frame i:nth-child(3), .frame i:nth-child(4) { bottom: 16px; }
  .frame i:nth-child(1), .frame i:nth-child(3) { left: 16px; }
  .frame i:nth-child(2), .frame i:nth-child(4) { right: 16px; }
}

/* --- Sahne --------------------------------------------------------------- */
.stage {
  position: relative; z-index: 3;
  min-height: 100svh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 6vh 24px;
  text-align: center;
  /* imlece göre çok hafif kayma */
  transform: translate3d(var(--px, 0px), var(--py, 0px), 0);
}

/* --- İsim: imleç ışığı harflerin üzerinde gezinir ------------------------ */
.name {
  position: relative;
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--font-weight-display);
  font-size: clamp(2.6rem, 9.6vw, 9.4rem);
  line-height: 1.06;
  letter-spacing: var(--tracking-display);
  white-space: nowrap;
  color: rgba(242, 243, 247, .42);     /* sönük taban — ince harfler daha çok ışık ister */

  opacity: 0;
  filter: blur(9px);
  transform: translateY(18px);
  animation: nameIn 2.1s var(--ease) .35s forwards;
}

/* aynı metnin ışıkla açığa çıkan kopyası */
.name::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(
      26vw 26vw at var(--mx) var(--my),
      rgba(255, 255, 255, 1) 0%,
      rgba(232, 239, 255, .92) 24%,
      rgba(178, 198, 245, .52) 46%,
      rgba(120, 145, 205, .18) 64%,
      transparent 78%
    );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@keyframes nameIn {
  to { opacity: 1; filter: blur(0); transform: none; }
}

/* Dokunmatikte imleç yok — ışık kendi yörüngesinde gezinirken ismin
   hiçbir anı fazla sönük kalmasın diye taban biraz daha parlak. */
@media (pointer: coarse) {
  .name { color: rgba(242, 243, 247, .58); }
}

/* --- Ünvan --------------------------------------------------------------- */
.role {
  margin: clamp(22px, 3.4vh, 38px) 0 0;
  font-size: clamp(.68rem, 1.25vw, .84rem);
  letter-spacing: .46em;
  text-indent: .48em;               /* harf aralığının sağdaki fazlasını dengele */
  text-transform: uppercase;
  color: var(--dim);

  opacity: 0;
  transform: translateY(12px);
  animation: up 1.5s var(--ease) 1.15s forwards;
}

/* --- E-posta ------------------------------------------------------------- */
.mail {
  position: relative;
  margin-top: clamp(30px, 4.5vh, 52px);
  display: inline-block;
  font-size: clamp(.82rem, 1.25vw, .95rem);
  letter-spacing: .04em;
  color: rgba(242, 243, 247, .68);
  text-decoration: none;
  padding-bottom: 7px;
  transition: color .55s var(--ease);

  opacity: 0;
  transform: translateY(12px);
  animation: up 1.5s var(--ease) 1.45s forwards;
}
.mail:hover { color: var(--ink); }

.mail__line {
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--faint);
  overflow: hidden;
}
.mail__line::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(242,243,247,.95), transparent);
  transform: translateX(-101%);
  transition: transform .9s var(--ease);
}
.mail:hover .mail__line::after { transform: translateX(101%); }

@keyframes up { to { opacity: 1; transform: none; } }

/* --- Hareket azaltma ----------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .name, .role, .mail, .frame i {
    animation: none;
    opacity: 1;
    filter: none;
    transform: none;
  }
  .name { color: rgba(242, 243, 247, .92); }
  .name::after { display: none; }
  .mail__line::after { transition: none; }
  #scene { transition: none; }
}