/* =========================
   Metavis1on — Neon Dark UI v4 (Lux Update)
   — #0b0b0b arka plan, beyaz vurgu
   — İkincil: cyan (#22D3EE) veya mor (#6D28D9)
   — Font: Poppins
   — Not: Var olan sınıflar korunmuştur.
========================= */

/* ---------- Temel Değişkenler ---------- */
:root{
  /* Renkler */
  --bg:#0b0b0b;
  --text:#eaeaea;
  --muted:#a7a7a7;

  /* Accent (cyan default) */
  --accent:#22d3ee;
  --accent-weak:#22d3ee20;
  --accent-strong:#22d3ee;

  /* Türevler (efektler için) */
  --accent-2: color-mix(in srgb, var(--accent) 70%, #ffffff 30%);
  --accent-3: color-mix(in srgb, var(--accent) 35%, #000 65%);
  --accent-glow: 0 0 24px var(--accent-weak), 0 0 48px var(--accent-weak);
  --surface:#0e0e10;

  /* Yüzeyler */
  --white:#fff;
  --card:rgba(255,255,255,.04);
  --card-2:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.07);
  --border:rgba(255,255,255,.09);
  --shadow:0 10px 30px rgba(0,0,0,.45);

  /* Boyutlar */
  --radius:18px;
  --radius-md:16px;
  --radius-lg:22px;
  --container:1150px;

  /* Tipografi ölçekleri */
  --fs-h1: clamp(28px, 2.8vw + 12px, 48px);
  --fs-h2: clamp(22px, 2.1vw + 10px, 36px);
  --fs-body: 16px;

  /* Kenar efektleri */
  --ring: 0 0 0 2px color-mix(in srgb, var(--accent) 30%, transparent 70%);
}

/* Accent toggle: purple set */
html[data-accent="purple"]{
  --accent:#6d28d9;
  --accent-weak:#6d28d920;
  --accent-strong:#7c3aed;
  --accent-2: color-mix(in srgb, var(--accent) 70%, #ffffff 30%);
  --accent-3: color-mix(in srgb, var(--accent) 35%, #000 65%);
}

/* ---------- Global Reset & Baz ---------- */
*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Poppins",-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial,"Inter",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  display:flex;flex-direction:column;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* Seçim rengi ve scrollbar */
::selection{background:var(--accent);color:var(--bg)}
:root{
  scrollbar-color: var(--accent-3) transparent;
  scrollbar-width: thin;
}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{
  background: linear-gradient(180deg,var(--accent-3),var(--accent));
  border-radius:999px;
  border:2px solid transparent;
  background-clip: padding-box;
}

/* Skip link */
.skip{position:absolute;left:-999px;top:-999px}
.skip:focus{
  left:12px;top:12px;z-index:3000;
  background:var(--accent);color:var(--bg);
  padding:8px 12px;border-radius:10px;
  box-shadow: var(--accent-glow);
}

/* ---------- Arka Planlar ---------- */
.bg-grid{
  /* Mat grid + nazik parıltılar */
  background-image:
    radial-gradient(ellipse at 20% -10%,rgba(255,255,255,.04),transparent 45%),
    radial-gradient(ellipse at 120% 10%,rgba(255,255,255,.04),transparent 45%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0,rgba(255,255,255,.03) 1px,transparent 1px,transparent 80px),
    repeating-linear-gradient(0deg,rgba(255,255,255,.02) 0,rgba(255,255,255,.02) 1px,transparent 1px,transparent 80px);
  background-color:var(--bg);
  background-attachment:fixed;
  position:relative;
}

/* Hafif noise üst katman (premium hissi) */
.bg-grid::before{
  content:"";
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/feBlend%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.022'/%3E%3C/svg%3E");
  mix-blend-mode:soft-light;
}

/* Scroll progress bar */
#scrollProgress{
  position:fixed;left:0;top:0;height:3px;z-index:1500;
  background:linear-gradient(90deg,var(--accent),transparent);
  width:0%;
  box-shadow:0 0 12px var(--accent-weak);
}

/* Neon canvas */
#neonBg{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  opacity:.52;mix-blend-mode:screen;
}

/* ---------- Layout ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:96px 0;position:relative;z-index:1}

/* Başlıklar (neon gradient text) */
.section-title{
  font-size:var(--fs-h2);
  line-height:1.2;margin:0 0 10px;
  background:linear-gradient(180deg,var(--white),color-mix(in srgb, var(--accent) 60%, #fff 40%));
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
  text-shadow:0 0 12px var(--accent-weak);
}
.section-text{color:var(--muted);margin:0 auto 8px;max-width:820px}

/* ---------- Navbar ---------- */
.nav{
  position:sticky;top:0;z-index:1200;
  backdrop-filter:blur(12px);
  background:
    linear-gradient(to bottom,rgba(0,0,0,.70),rgba(0,0,0,.28));
  border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:68px}
.brand{
  display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);
  font-weight:700;letter-spacing:.3px
}
.brand img{
  width:30px;height:30px;border-radius:8px;object-fit:cover;
  filter:drop-shadow(0 0 10px var(--accent-weak))
}
.menu{display:flex;align-items:center;gap:18px}
.nav-actions{display:flex;align-items:center;gap:10px}

/* Neons */
.nav-link{
  color:var(--text);text-decoration:none;font-weight:600;opacity:.92;
  position:relative;padding:8px 12px;border-radius:12px;transition:.2s ease;
  border:1px solid transparent;
  background:linear-gradient(180deg,transparent,transparent) padding-box,
             radial-gradient(120% 120% at 0% 0%, var(--accent-weak), transparent 70%) border-box;
}
.nav-link:hover,.nav-link.active{
  background:
    linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,.05)) padding-box,
    radial-gradient(140% 140% at 0% 0%, var(--accent-weak), transparent 70%) border-box;
  box-shadow:0 0 14px var(--accent-weak), inset 0 0 10px var(--accent-weak);
}
.nav-cta{
  color:var(--bg);
  background:linear-gradient(180deg,var(--accent), color-mix(in srgb, var(--accent) 60%, #0ff 40%));
  border-radius:14px;padding:10px 16px;font-weight:800;
  text-decoration:none;box-shadow:0 12px 30px var(--accent-weak);
  border:1px solid color-mix(in srgb, var(--accent) 55%, #fff 45%);
  position:relative;overflow:hidden;
}
.nav-cta::after{
  content:"";position:absolute;inset:-1px;border-radius:inherit;
  background:conic-gradient(from 180deg,var(--accent-weak),transparent 25%,transparent 75%,var(--accent-weak));
  filter:blur(14px);opacity:.5;z-index:-1;
}
.nav-cta:hover{transform:translateY(-1px);filter:saturate(1.05)}

/* Accent & kbd butonları */
.accent-toggle,.kbd-btn{
  appearance:none;border:1px solid var(--border);background:var(--card);
  color:var(--text);padding:8px 12px;border-radius:12px;cursor:pointer;
  transition:.2s ease;font-weight:700;
  box-shadow: 0 1px 0 rgba(255,255,255,.06) inset;
}
.accent-toggle:hover,.kbd-btn:hover{box-shadow:0 0 12px var(--accent-weak)}
.kbd-btn{letter-spacing:.5px}

/* Burger */
.burger{
  display:none;width:38px;height:34px;border:1px solid var(--border);
  background:linear-gradient(180deg,var(--card),var(--card-2));border-radius:12px;cursor:pointer;position:relative
}
.burger span{
  position:absolute;left:8px;right:8px;height:2px;background:var(--text);transition:.2s ease;border-radius:2px
}
.burger span:nth-child(1){top:9px}.burger span:nth-child(2){top:16px}.burger span:nth-child(3){top:23px}
.burger.open span:nth-child(1){top:16px;transform:rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){top:16px;transform:rotate(-45deg)}

/* Mobile nav */
.mobile-nav{
  position:fixed;inset:68px 0 0 0;background:rgba(0,0,0,.86);backdrop-filter:blur(10px);
  border-top:1px solid var(--border);display:grid;gap:12px;padding:18px;z-index:1100;
}
.m-link,.m-cta{
  display:block;text-decoration:none;color:var(--text);
  padding:12px 14px;border-radius:14px;border:1px solid var(--border);
  background:linear-gradient(180deg,var(--card),var(--card-2));
  transition:.18s ease;
}
.m-link:hover{box-shadow:0 0 12px var(--accent-weak)}
.m-cta{background:var(--accent);color:var(--bg);border-color:transparent;font-weight:800}

/* ---------- Hero ---------- */
.hero{text-align:center;padding-top:120px}
.logo-wrap{position:relative;width:148px;height:148px;margin:0 auto 20px}
.hero-logo{
  width:100%;height:100%;object-fit:cover;border-radius:24px;
  box-shadow:0 0 0 0 var(--accent-weak);animation:glow-in 1s ease forwards;
}
.logo-glow{position:absolute;inset:-16px;border-radius:30px;background:radial-gradient(closest-side,var(--accent-weak),transparent 70%);filter:blur(14px);opacity:.95;pointer-events:none}
@keyframes glow-in{from{filter:brightness(.6) saturate(.9);box-shadow:0 0 0 0 var(--accent-weak)}to{filter:brightness(1.06) saturate(1.06);box-shadow:0 0 42px 8px var(--accent-weak)}}

.hero-title{
  font-size:var(--fs-h1);
  margin:8px 0 12px;
  letter-spacing:.2px;
  background:linear-gradient(180deg,#fff, color-mix(in srgb, var(--accent) 50%, #fff 50%));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--muted);margin:0 auto 22px;max-width:880px}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 18px;border-radius:14px;border:1px solid var(--border);
  background:linear-gradient(180deg,var(--card),var(--card-2));
  color:var(--text);text-decoration:none;font-weight:700;letter-spacing:.1px;
  transition:transform .15s ease, box-shadow .15s ease, background .2s ease, filter .2s ease;
  position:relative;overflow:hidden;
}
.btn::after{
  content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;
  background:conic-gradient(from 180deg at 50% 50%, transparent, var(--accent-weak), transparent 30%);
  filter:blur(14px);opacity:.4;transition:.2s ease;
}
.btn:hover{box-shadow:0 0 18px var(--accent-weak);transform:translateY(-1px);filter:saturate(1.05)}
.btn:hover::after{opacity:.65}
.btn-primary{
  background:linear-gradient(180deg,var(--accent), color-mix(in srgb, var(--accent) 65%, #0ff 35%));
  color:var(--bg);border-color:color-mix(in srgb, var(--accent) 60%, #fff 40%);
}
.btn-ghost{background:transparent}
.btn-mini{padding:8px 12px;font-size:14px}
.btn-block{width:100%}
.btn-xxl{padding:18px 26px;font-size:18px;border-radius:18px}
.btn:focus-visible{outline:none;box-shadow:var(--ring), 0 0 20px var(--accent-weak)}

/* Sheen */
.hero-sheen{position:absolute;left:50%;transform:translateX(-50%);bottom:-40px;width:min(100%,900px);height:3px;background:linear-gradient(90deg,transparent,var(--accent),transparent);filter:blur(1px);opacity:.7}

/* Orbs */
.hero-orb{position:absolute;pointer-events:none;border-radius:999px;filter:blur(42px);opacity:.38;mix-blend-mode:screen}
.orb-a{width:260px;height:260px;left:4%;top:-40px;background:radial-gradient(circle at 30% 30%,var(--accent),transparent 60%);animation:floatA 12s ease-in-out infinite}
.orb-b{width:260px;height:260px;right:4%;top:0;background:radial-gradient(circle at 60% 60%,#7c3aed,transparent 60%);animation:floatB 13s ease-in-out infinite}
@keyframes floatA{50%{transform:translateY(12px) translateX(6px)}}
@keyframes floatB{50%{transform:translateY(-10px) translateX(-5px)}}

/* ---------- Bölüm Başlıkları ---------- */
.section-head{text-align:center;margin-bottom:24px}

/* ---------- İstatistikler ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}
.stat-card{
  padding:20px;border-radius:var(--radius);border:1px solid var(--border);
  background:linear-gradient(180deg,var(--card),var(--card-2));
  box-shadow:var(--shadow);position:relative;overflow:hidden
}
/* Dönen neon halo */
.stat-card::after{
  content:"";position:absolute;inset:-2px;border-radius:inherit;
  background:conic-gradient(from 180deg at 50% 50%,transparent 0,var(--accent-weak) 25%,transparent 50%,transparent 100%);
  filter:blur(12px);opacity:.6;z-index:-1;
  animation:spin 8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.stat-label{color:var(--muted);font-size:14px}
.stat-value{font-size:34px;font-weight:800;margin:2px 0 6px;text-shadow:0 0 14px var(--accent-weak)}
.stat-hint{color:var(--muted);font-size:12px}
.status-dot{letter-spacing:4px}

/* ---------- Cam Yardımcı ---------- */
.glass{
  background:linear-gradient(180deg,var(--card),var(--card-2));
  border:1px solid var(--border);
  backdrop-filter:blur(8px);
  box-shadow:var(--shadow);
  position:relative;
  isolation:isolate;
}
.glass::before{
  /* İnce iç kontur */
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), inset 0 0 0 1px rgba(255,255,255,.04);
  mix-blend-mode:soft-light;
}

/* ---------- Online avatars ---------- */
.online-wrap{margin-top:24px}
.mini-title{margin:0 0 8px;font-size:14px;color:var(--muted)}
.avatar-row{display:flex;flex-wrap:wrap;gap:8px}
.avatar-img{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--border);
  box-shadow:0 0 12px var(--accent-weak);object-fit:cover;background:#0f0f12
}

/* ---------- Feed ---------- */
.feed{margin-top:28px}
.feed-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.feed-title{margin:0}
.feed-note{color:var(--muted);font-size:13px}
.feed-list{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:10px}
.feed-item{
  display:grid;grid-template-columns:auto 1fr;gap:10px;
  padding:12px 14px;border-radius:var(--radius);border:1px solid var(--border);background:var(--card)
}
.badge{
  align-self:start;font-size:12px;font-weight:800;
  color:var(--bg);background:linear-gradient(180deg,var(--accent),var(--accent-2));padding:6px 10px;border-radius:999px;
  box-shadow: 0 0 10px var(--accent-weak);
}

/* ---------- Projeler + Filtre ---------- */
.filters{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px;border-radius:var(--radius);margin-bottom:14px
}
.input{
  flex:1;border:1px solid var(--border);background:var(--card);color:var(--text);
  border-radius:12px;padding:12px 14px;outline:none;transition:box-shadow .15s, border-color .15s;
}
.input:focus{box-shadow:0 0 0 3px var(--accent-weak);border-color:color-mix(in srgb, var(--accent) 60%, #fff 40%)}
.tagbar{display:flex;gap:8px;flex-wrap:wrap}
.tag{
  border:1px solid var(--border);background:var(--card);color:var(--text);
  padding:8px 12px;border-radius:999px;cursor:pointer;font-weight:700;letter-spacing:.2px;
  transition: .15s ease;
}
.tag.is-active,.tag:hover{box-shadow:0 0 12px var(--accent-weak);background:var(--accent-weak)}

/* Kartlar */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}
.card{
  padding:18px;border-radius:var(--radius);
  transition:transform .2s ease, box-shadow .2s ease, filter .2s;
  border:1px solid var(--border);
  background:linear-gradient(180deg,var(--card),var(--card-2));
}
.card:hover{transform:translateY(-2px);box-shadow:0 0 22px var(--accent-weak);filter:saturate(1.03)}
.card-title{margin:0 0 6px;font-weight:800}
.card-text{color:var(--muted);margin:0 0 12px}

/* 3D tilt helper */
.tilt{transform-style:preserve-3d;will-change:transform}

/* ---------- Modal + CmdK ---------- */
.modal{position:fixed;inset:0;display:none;place-items:center;background:rgba(0,0,0,.6);z-index:2000}
.modal[open],.modal.show{display:grid}
.modal-dialog{
  width:min(560px,92vw);
  background:linear-gradient(180deg,var(--card),var(--card-2));
  border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:20px;box-shadow:var(--shadow);position:relative
}
.modal-close{
  position:absolute;right:16px;top:10px;background:transparent;border:none;color:var(--text);
  font-size:28px;cursor:pointer;border-radius:10px;
}
.modal-close:hover{box-shadow:0 0 10px var(--accent-weak)}

.cmdk-dialog{width:min(700px,96vw)}
.cmdk-input{
  width:100%;border:1px solid var(--border);background:var(--card);color:var(--text);
  border-radius:12px;padding:12px 14px;margin-bottom:10px;outline:none;
}
.cmdk-input:focus{box-shadow:0 0 0 3px var(--accent-weak)}
.cmdk-list{list-style:none;padding:0;margin:0}
.cmdk-list li{
  padding:10px 12px;border:1px solid var(--border);background:var(--card);
  border-radius:12px;margin-bottom:8px;cursor:pointer;transition:.15s ease;
}
.cmdk-list li:hover{box-shadow:0 0 12px var(--accent-weak);transform:translateY(-1px)}

/* ---------- Team ---------- */
.team-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}
.person{padding:18px;border-radius:var(--radius);text-align:center;transition:.2s ease;border:1px solid var(--border);background:linear-gradient(180deg,var(--card),var(--card-2))}
.person:hover{box-shadow:0 0 22px var(--accent-weak)}
.avatar{
  width:76px;height:76px;border-radius:20px;margin:0 auto 10px;display:grid;place-items:center;
  background:var(--accent-weak);color:var(--text);font-weight:800;border:1px solid var(--border)
}
.person-name{margin:8px 0 2px;font-weight:800}
.person-role{color:var(--accent-strong);font-weight:800}
.person-bio{color:var(--muted)}

/* ---------- Join ---------- */
.join{text-align:center}
.join-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.socials{display:flex;gap:12px;justify-content:center;margin-top:16px}
.social{
  width:42px;height:42px;display:grid;place-items:center;border-radius:12px;
  background:var(--card);border:1px solid var(--border);
  color:var(--text);text-decoration:none;transition:.18s ease
}
.social:hover{box-shadow:0 0 16px var(--accent-weak);transform:translateY(-2px)}

/* ---------- To Top ---------- */
.to-top{
  position:fixed;right:18px;bottom:18px;z-index:1200;border:1px solid var(--border);
  background:linear-gradient(180deg,var(--card),var(--card-2));color:var(--text);
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  box-shadow:var(--shadow);cursor:pointer;opacity:0;transform:translateY(8px);transition:.2s ease
}
.to-top.show{opacity:1;transform:none}
.to-top:hover{box-shadow:0 0 16px var(--accent-weak)}

/* ---------- Footer ---------- */
.footer{margin-top:auto;border-top:1px solid var(--border);background:rgba(0,0,0,.5)}
.footer-inner{min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.footer a{color:var(--text);text-decoration:none;opacity:.9}
.footer a:hover{text-decoration:underline}
.footer-right{display:flex;align-items:center;gap:8px;color:var(--muted)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease, transform .6s ease}
.reveal.revealed{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .card-grid,.team-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:980px){
  .menu{display:none}
  .burger{display:inline-block}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .card-grid,.team-grid,.stats-grid{grid-template-columns:1fr}
  .logo-wrap{width:115px;height:115px}
  .hero{padding-top:110px}
}

/* ---------- Motion Pref ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{transition:none}
  .hero-logo{animation:none}
  .orb-a,.orb-b{animation:none}
}

/* ---------- Kritik Düzeltmeler (Mobil Menü) ---------- */
.mobile-nav[hidden]{display:none !important} /* hidden -> her zaman display:none */
@media (min-width:981px){#mobileNav{display:none !important}}

/* ---------- Ufak Erişilebilirlik Dokunuşları ---------- */
a:focus-visible, button:focus-visible, input:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px var(--accent-weak), 0 0 0 6px rgba(0,0,0,.25);
  border-color: color-mix(in srgb, var(--accent) 60%, #fff 40%);
  transition: box-shadow .2s ease;
}

/* ---------- Utility: gradient-border (isteğe bağlı ek kullanım için) ---------- */
.neon-border{
  border:1px solid transparent;
  background:
    linear-gradient(180deg,var(--card),var(--card-2)) padding-box,
    linear-gradient(120deg, var(--accent), transparent 40%) border-box;
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}