/* ═══════════════════════════════════════════════════
   QUANTRO · DESIGN BASE
   Tüm sayfaların ortak temeli: reset, tasarım token'ları,
   body, scrollbar, focus ve KVKK çerez onayı.
   Sayfaya özel stiller ayrı dosyalardadır:
   style.css (ana site) · css/blog.css · css/lab.css · css/admin.css
   ═══════════════════════════════════════════════════ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
:root {
  --void: #020810;
  --deep: rgba(7, 17, 31, 0.72);
  --surface: rgba(13, 31, 53, 0.66);
  --subtle: #1e3248;
  --cyan: #00c8f0;
  --cyanD: rgba(0, 200, 240, 0.12);
  --cyanM: rgba(0, 200, 240, 0.35);
  --text: #e8edf5;
  --muted: #7a93a8;
  --red: #ff4466;
  --green: #00f0a0;
  --gold: #f0c040;
  --purple: #a060ff;
  --fd: "Syne", sans-serif;
  --fb: "Space Grotesk", sans-serif;
  --fm: "JetBrains Mono", monospace;
}
html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  /* Sayfa zemini burada kalır; gövde saydam olunca
     akış alanı canvas'ı görünür olur */
  background: var(--void);
}
body {
  background: transparent;
  color: var(--text);
  font-family: var(--fb);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::-webkit-scrollbar {
  width: 3px;
}
::-webkit-scrollbar-track {
  background: var(--void);
}
::-webkit-scrollbar-thumb {
  background: var(--cyanM);
}
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ══ Cookie Consent (KVKK) — tek kaynak ══ */
.qc-cookie {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  background: rgba(4, 10, 20, 0.97);
  border-top: 1px solid rgba(0, 200, 240, 0.25);
  padding: 18px 24px;
  display: none;
}
.qc-cookie.show {
  display: block;
}
.qc-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: space-between;
}
.qc-text {
  flex: 1 1 480px;
  font-family: var(--fb);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}
.qc-text strong {
  color: var(--text);
  font-family: var(--fd);
}
.qc-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.qc-btn {
  border: none;
  cursor: pointer;
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 12px 22px;
  transition: opacity 0.2s;
}
.qc-btn:hover {
  opacity: 0.8;
}
.qc-accept {
  background: var(--cyan);
  color: #020810;
  font-weight: 700;
}
.qc-reject {
  background: transparent;
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.18);
}
.qc-link {
  color: var(--cyan);
  text-decoration: underline;
  margin-left: 6px;
}

/* ══ Global yardımcılar (100-puan sprint) ══ */
.vh {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
  clip-path: inset(50%);
}
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 300;
  background: var(--cyan);
  color: var(--void);
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 12px 22px;
  text-decoration: none;
  font-weight: 700;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 16px;
}
.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  max-width: 1200px;
  margin: 110px auto 0;
  padding: 0 40px;
}
.crumbs a {
  color: var(--cyan);
  text-decoration: none;
  transition: opacity 0.2s;
  padding: 14px 0;
}
.crumbs a:hover {
  opacity: 0.75;
}
.crumbs [aria-current="page"] {
  color: var(--text);
}
.csep {
  color: var(--cyanM);
}

/* SSS (FAQ) + istatistik + yanıt süresi */
.faq-list {
  display: grid;
  gap: 10px;
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: var(--deep);
  border: 1px solid rgba(0, 200, 240, 0.1);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item[open] {
  border-color: rgba(0, 200, 240, 0.35);
}
.faq-item summary {
  font-family: var(--fd);
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text);
  padding: 20px 26px;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  font-family: var(--fm);
  color: var(--cyan);
  font-size: 18px;
  transition: transform 0.2s;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-item p {
  font-size: 13.5px;
  font-weight: 300;
  line-height: 1.8;
  color: rgba(232, 237, 245, 0.66);
  padding: 0 26px 22px;
}
.stat-widget {
  text-align: center;
}
.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  max-width: 760px;
  margin: 28px auto 0;
}
.stat-card {
  background: var(--deep);
  border: 1px solid rgba(0, 200, 240, 0.14);
  border-radius: 8px;
  padding: 26px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}
.stat-v {
  font-family: var(--fd);
  font-size: 34px;
  font-weight: 800;
  color: var(--cyan);
  line-height: 1;
}
.stat-l {
  font-family: var(--fm);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}
.stat-note {
  font-size: 12px;
  color: var(--muted);
  font-family: var(--fm);
  letter-spacing: 1px;
}
.c-resp {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--muted);
  margin: 10px 0 24px;
  border-left: 2px solid var(--cyanM);
  padding-left: 12px;
}
.ft-ai {
  opacity: 0.55;
}
.pv-author,
.post-author {
  color: var(--cyan) !important;
  font-weight: 400;
}

@media (max-width: 900px) {
  .crumbs {
    margin-top: 96px;
    padding-left: 20px;
    padding-right: 20px;
  }
}
@media (max-width: 520px) {
  .crumbs {
    gap: 6px;
    font-size: 9px;
    letter-spacing: 1.5px;
  }
  .faq-item summary {
    padding: 16px 18px;
    font-size: 13px;
  }
  .faq-item p {
    padding: 0 18px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.1ms !important;
  }
}

/* ══════════════════════════════════════════════════════════════
   ENTROPY ARKA PLAN (ortak kabuk)
   Akış alanı canvas'ı sayfa zemini; bölüm yüzeyleri yarı
   saydam olduğu için alan bütün sayfada görünür.
   ══════════════════════════════════════════════════════════════ */
#entropy-bg {
  /* EMNIYET AGI: canvas icerigi saydam/bozuk/kaybolmus
     durumda saydam bir zemin gosterir. WebGL context kaybolup
     cizim durdugunda ya da ilk kare gelmediginde arka plan
     BEYAZ olmasin diye. */
  background: var(--void);
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  display: block;
}
.no-entropy,
.no-entropy body {
  background: var(--void);
}
/* reduced-motion: gizleme yok — JS tek bir statik kare cizer,
   yani nebula gorunur ama HAREKET ETMEZ. */