/* ════════════════════════════════════════════════════
   SOLITERAX — çekirdek stil
   Palet Somera'dan türedi: boşluk, camgöbeği, altın.
   ════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Chakra+Petch:wght@400;500;600;700&family=IBM+Plex+Sans:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Boşluk katmanları */
  --void:    #050a12;
  --deep:    #0a1526;
  --panel:   #0e1c2f;
  --line:    #1a3049;
  --line-2:  #244463;

  /* Işık */
  --cyan:    #7fe9ff;
  --cyan-dim: rgba(127, 233, 255, .55);
  --cyan-faint: rgba(127, 233, 255, .12);
  --gold:    #ffd88a;
  --jade:    #00e5a0;
  --ember:   #ff6b6b;

  /* Metin */
  --paper:   #dfe9f2;
  --ash:     #7b93ab;
  --ash-dim: #4d6478;

  /* Tipografi */
  --display: 'Chakra Petch', system-ui, sans-serif;
  --body:    'IBM Plex Sans', system-ui, sans-serif;
  --mono:    'JetBrains Mono', ui-monospace, monospace;

  /* Ölçü */
  --gutter:  clamp(1.25rem, 4vw, 3.5rem);
  --max:     1180px;
  --radius:  3px;
}

/* ─── SIFIRLAMA ───────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

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

body {
  background: var(--void);
  color: var(--paper);
  font-family: var(--body);
  font-weight: 300;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }

::selection { background: var(--cyan); color: var(--void); }

/* ─── ARKA PLAN DOKUSU ───────────────────────────── */
.doku {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.doku::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(127, 233, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 233, 255, .045) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 15%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 15%, transparent 75%);
}

.doku::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 45% at 50% -5%, rgba(127, 233, 255, .09), transparent 70%),
    radial-gradient(ellipse 45% 35% at 88% 12%, rgba(255, 216, 138, .045), transparent 65%);
}

/* ─── DÜZEN ──────────────────────────────────────── */
.sarmal {
  position: relative;
  z-index: 1;
}

.kap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

section { padding-block: clamp(4rem, 9vw, 7.5rem); }

/* ─── ÜST ÇUBUK ──────────────────────────────────── */
.ust {
  position: sticky;
  top: 0;
  z-index: 60;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(5, 10, 18, .78);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.ust.kayik {
  border-bottom-color: var(--line);
  background: rgba(5, 10, 18, .92);
}

.ust-ic {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 64px;
}

.marka {
  display: flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  white-space: nowrap;
}

.marka-sigil {
  width: 22px; height: 22px;
  flex-shrink: 0;
  animation: donme 24s linear infinite;
}
@keyframes donme { to { transform: rotate(360deg); } }

.gezinti {
  margin-left: auto;
  display: flex;
  gap: .35rem;
  align-items: center;
}

.gezinti a {
  position: relative;
  padding: .45rem .85rem;
  font-family: var(--display);
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--ash);
  transition: color .2s;
}
.gezinti a:hover, .gezinti a.etkin { color: var(--cyan); }

.gezinti a::after {
  content: '';
  position: absolute;
  left: .85rem; right: .85rem; bottom: .18rem;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s cubic-bezier(.2,.9,.3,1);
}
.gezinti a:hover::after, .gezinti a.etkin::after { transform: scaleX(1); }

.menu-dugme { display: none; padding: .5rem; color: var(--cyan); }

/* ─── TİPOGRAFİ ──────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.005em;
}

.dev-baslik {
  font-size: clamp(2.6rem, 9vw, 6.5rem);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: .92;
}

.bolum-baslik {
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  font-weight: 600;
}

.etiket {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--mono);
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--cyan-dim);
}
.etiket::before {
  content: '';
  width: 18px; height: 1px;
  background: var(--cyan-dim);
}

.metin { color: var(--ash); }
.mono { font-family: var(--mono); }

/* ─── GİRİŞ BÖLÜMÜ ───────────────────────────────── */
.giris {
  padding-block: clamp(3rem, 8vw, 6rem) clamp(4rem, 9vw, 7rem);
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
}

.giris-izgara {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  width: 100%;
}

.giris-yazi > * + * { margin-top: 1.35rem; }

.giris-ad {
  display: block;
  color: var(--cyan);
  text-shadow: 0 0 42px rgba(127, 233, 255, .35);
}

.giris-alt {
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  color: var(--ash);
  max-width: 48ch;
  font-weight: 300;
}

.giris-eylem {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  padding-top: .6rem;
}

/* ─── DÜĞMELER ───────────────────────────────────── */
.dugme {
  --d-renk: var(--cyan);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .8rem 1.5rem;
  font-family: var(--display);
  font-size: .84rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--d-renk);
  border: 1px solid color-mix(in srgb, var(--d-renk) 45%, transparent);
  background: color-mix(in srgb, var(--d-renk) 7%, transparent);
  clip-path: polygon(11px 0, 100% 0, calc(100% - 11px) 100%, 0 100%);
  transition: background .2s, box-shadow .2s, transform .12s;
}
.dugme:hover {
  background: color-mix(in srgb, var(--d-renk) 16%, transparent);
  box-shadow: 0 0 26px color-mix(in srgb, var(--d-renk) 22%, transparent);
}
.dugme:active { transform: translateY(1px); }
.dugme.altin { --d-renk: var(--gold); }
.dugme.sade  { --d-renk: var(--ash); }

/* ─── YÖRÜNGE HARİTASI (imza öğe) ────────────────── */
.harita {
  position: relative;
  aspect-ratio: 1;
  width: 100%;
  max-width: 480px;
  margin-inline: auto;
}

.harita svg { width: 100%; height: 100%; overflow: visible; }

.yorunge {
  fill: none;
  stroke: var(--cyan);
  stroke-width: .7;
  opacity: .13;
}

.bag {
  stroke: var(--cyan);
  stroke-width: .8;
  opacity: .22;
  stroke-dasharray: 3 5;
  animation: akis 14s linear infinite;
}
@keyframes akis { to { stroke-dashoffset: -64; } }

.cekirdek-hale {
  fill: var(--cyan);
  opacity: .07;
  animation: nefes 4.5s ease-in-out infinite;
}
@keyframes nefes {
  0%, 100% { r: 30; opacity: .07; }
  50%      { r: 36; opacity: .13; }
}

.cekirdek {
  fill: var(--cyan);
  filter: drop-shadow(0 0 10px rgba(127, 233, 255, .85));
}

.cekirdek-yazi {
  fill: var(--void);
  font-family: var(--display);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .12em;
  text-anchor: middle;
  dominant-baseline: central;
}

.dugum-grup { cursor: pointer; }

.dugum {
  fill: var(--deep);
  stroke: var(--cyan);
  stroke-width: 1.1;
  transition: fill .25s, stroke-width .25s;
}
.dugum-grup:hover .dugum,
.dugum-grup:focus-visible .dugum {
  fill: var(--cyan);
  stroke-width: 1.8;
}

.dugum-nokta {
  fill: var(--jade);
  filter: drop-shadow(0 0 5px rgba(0, 229, 160, .9));
}
.dugum-nokta.kapali { fill: var(--ember); filter: drop-shadow(0 0 5px rgba(255,107,107,.9)); }

.dugum-ad {
  fill: var(--paper);
  font-family: var(--display);
  font-size: 7.5px;
  font-weight: 600;
  letter-spacing: .1em;
  text-anchor: middle;
  transition: fill .25s;
}
.dugum-grup:hover .dugum-ad { fill: var(--cyan); }

.harita-bilgi {
  position: absolute;
  left: 50%;
  bottom: -.5rem;
  transform: translateX(-50%);
  width: min(100%, 300px);
  text-align: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity .25s;
}
.harita-bilgi.acik { opacity: 1; }
.harita-bilgi strong {
  display: block;
  font-family: var(--display);
  font-size: .9rem;
  color: var(--cyan);
  letter-spacing: .06em;
}
.harita-bilgi span {
  font-size: .78rem;
  color: var(--ash);
  line-height: 1.5;
}

/* ─── BÖLGE LİSTESİ ──────────────────────────────── */
.bolge-liste {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 2.5rem;
}

.bolge {
  position: relative;
  display: block;
  padding: 1.6rem 1.5rem;
  background: var(--deep);
  transition: background .25s;
  overflow: hidden;
}
.bolge:hover { background: var(--panel); }

.bolge::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .3s cubic-bezier(.2,.9,.3,1);
}
.bolge:hover::before { transform: scaleY(1); }

.bolge-ust {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: .7rem;
}

.bolge-ad {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .04em;
}

.isik {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--jade);
  box-shadow: 0 0 8px var(--jade);
  flex-shrink: 0;
}
.isik.kapali { background: var(--ember); box-shadow: 0 0 8px var(--ember); }

.bolge-yigin {
  margin-left: auto;
  font-family: var(--mono);
  font-size: .66rem;
  color: var(--ash-dim);
  letter-spacing: .06em;
}

.bolge-aciklama {
  font-size: .88rem;
  color: var(--ash);
  line-height: 1.6;
}

.bolge-ok {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--cyan-dim);
  transition: gap .25s, color .25s;
}
.bolge:hover .bolge-ok { gap: .8rem; color: var(--cyan); }

/* ─── KAYIT (blog) ───────────────────────────────── */
.kayit-liste { margin-top: 2.5rem; border-top: 1px solid var(--line); }

.kayit {
  display: grid;
  grid-template-columns: 130px 1fr auto;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left .3s cubic-bezier(.2,.9,.3,1);
}
.kayit:hover { padding-left: .9rem; }

.kayit-tarih {
  font-family: var(--mono);
  font-size: .74rem;
  color: var(--ash-dim);
  letter-spacing: .04em;
  white-space: nowrap;
}

.kayit-baslik {
  font-family: var(--display);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 600;
  transition: color .2s;
}
.kayit:hover .kayit-baslik { color: var(--cyan); }

.kayit-ozet {
  margin-top: .4rem;
  font-size: .87rem;
  color: var(--ash);
  line-height: 1.6;
}

.kayit-sure {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--ash-dim);
  white-space: nowrap;
}

/* ─── ARAÇ (program) ─────────────────────────────── */
.arac-liste {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.arac {
  padding: 1.5rem;
  background: var(--deep);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: border-color .25s, transform .25s;
}
.arac:hover { border-color: var(--line-2); transform: translateY(-3px); }

.arac-ad {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: .55rem;
}

.arac-aciklama {
  font-size: .87rem;
  color: var(--ash);
  line-height: 1.6;
  margin-bottom: 1.1rem;
}

.arac-alt {
  display: flex;
  align-items: center;
  gap: .8rem;
}

.boyut {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--ash-dim);
  margin-left: auto;
}

/* ─── YAZI İÇERİĞİ ───────────────────────────────── */
.yazi {
  max-width: 68ch;
  font-size: 1.02rem;
  line-height: 1.8;
}
.yazi > * + * { margin-top: 1.35rem; }
.yazi h2, .yazi h3, .yazi h4 { margin-top: 2.6rem; color: var(--paper); }
.yazi h2 { font-size: 1.6rem; }
.yazi h3 { font-size: 1.28rem; }
.yazi p { color: var(--ash); }
.yazi strong { color: var(--paper); font-weight: 600; }
.yazi a { color: var(--cyan); border-bottom: 1px solid var(--cyan-faint); transition: border-color .2s; }
.yazi a:hover { border-bottom-color: var(--cyan); }
.yazi ul { padding-left: 1.3rem; color: var(--ash); }
.yazi li + li { margin-top: .45rem; }
.yazi code {
  font-family: var(--mono);
  font-size: .88em;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: .12em .42em;
  border-radius: var(--radius);
  color: var(--gold);
}
.yazi pre {
  background: var(--deep);
  border: 1px solid var(--line);
  padding: 1.1rem 1.3rem;
  overflow-x: auto;
  border-radius: var(--radius);
}
.yazi pre code { background: none; border: none; padding: 0; color: var(--paper); }
.yazi blockquote {
  border-left: 2px solid var(--cyan-dim);
  padding-left: 1.2rem;
  color: var(--ash);
  font-style: italic;
}
.yazi hr { border: none; border-top: 1px solid var(--line); }

/* ─── ALT BİLGİ ──────────────────────────────────── */
.alt {
  border-top: 1px solid var(--line);
  padding-block: 2.5rem 3rem;
  margin-top: 2rem;
}
.alt-ic {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: .74rem;
  color: var(--ash-dim);
  letter-spacing: .05em;
}
.alt-ic a { transition: color .2s; }
.alt-ic a:hover { color: var(--cyan); }
.alt-sag { margin-left: auto; display: flex; gap: 1.25rem; }

/* ─── BELİRME ANİMASYONU ─────────────────────────── */
.belir {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s cubic-bezier(.2,.9,.3,1), transform .7s cubic-bezier(.2,.9,.3,1);
}
.belir.gorunur { opacity: 1; transform: none; }

/* ─── BOŞ DURUM ──────────────────────────────────── */
.bos {
  padding: 3rem 1.5rem;
  text-align: center;
  border: 1px dashed var(--line);
  color: var(--ash-dim);
  font-size: .9rem;
}

/* ─── DUYARLI ────────────────────────────────────── */
@media (max-width: 900px) {
  .giris-izgara { grid-template-columns: 1fr; }
  .harita { max-width: 380px; order: -1; }
  .giris { min-height: auto; }
}

@media (max-width: 680px) {
  .gezinti {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--deep);
    border-bottom: 1px solid var(--line);
    padding: .5rem 0;
    transform: translateY(-120%);
    transition: transform .3s cubic-bezier(.2,.9,.3,1);
  }
  .gezinti.acik { transform: none; }
  .gezinti a { padding: .85rem var(--gutter); }
  .gezinti a::after { display: none; }
  .menu-dugme { display: block; margin-left: auto; }

  .kayit { grid-template-columns: 1fr; gap: .5rem; }
  .kayit-sure { display: none; }
  .alt-sag { margin-left: 0; width: 100%; }
}

/* ─── ERİŞİLEBİLİRLİK ────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .belir { opacity: 1; transform: none; }
}