/* ============================================================
   ArfDAO ortak stil dosyasi
   Renk paleti dogrudan topluluk sunumundan alinmistir:
     mavi   #0077fc  (01 numarali kart)
     turkuaz #1abcd8 / #3fd7e7 (kapak gradyani)
     koyu   #231f20  (02 numarali kart / koyu slaytlar)
   ============================================================ */

:root {
  --blue: #0077fc;
  --blue-dark: #005fd0;
  --blue-soft: rgba(0, 119, 252, 0.08);
  --blue-border: rgba(0, 119, 252, 0.22);
  --cyan: #1abcd8;
  --cyan-light: #3fd7e7;
  --cyan-pale: #a2f3f2;

  --ink: #231f20;
  --ink-deep: #171415;
  --ink-2: #2f2b2c;
  --muted: #5c5658;
  --muted-2: #8a8385;

  --line: #e6e4e5;
  --line-dark: rgba(255, 255, 255, 0.14);
  --bg: #ffffff;
  --bg-soft: #f5f4f4;

  --radius: 24px;
  --radius-sm: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--ink-2);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.material-symbols-outlined { font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 800px; }
section { padding: 104px 0; }

/* ---------- Nav ---------- */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  background: rgba(255, 255, 255, 0.93);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
header.scrolled { border-bottom-color: var(--line); background: rgba(255, 255, 255, 0.98); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 20px; }
.logo { display: flex; align-items: center; }
.logo .lockup { height: 24px; width: auto; }
/* Markanin kendi logo karesindeki gorunum: mavi gradyan kutu uzerinde beyaz logo */
.logo-chip {
  display: inline-flex; align-items: center;
  border-radius: 14px; padding: 11px 18px;
  background: linear-gradient(125deg, #2d1b8f 0%, #1436b4 45%, #0077fc 100%);
  background-size: 170% 170%;
  box-shadow: 0 6px 18px rgba(0, 119, 252, 0.24);
  transition: background-position .5s ease, box-shadow .3s ease;
}
.logo:hover .logo-chip {
  background-position: 100% 100%;
  box-shadow: 0 8px 26px rgba(0, 119, 252, 0.36);
}
/* koyu zeminlerde kutuya gerek yok, logo zaten beyaz */
footer .logo-chip { background: none; padding: 0; box-shadow: none; }
footer .logo .lockup { height: 26px; }
/* gorsel yuklenmezse okunakli yazi yedegi devreye girer */
.logo .word-fallback {
  font-size: 20px; font-weight: 800; letter-spacing: 1px; color: #fff;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 14.5px; font-weight: 500; color: var(--muted); transition: color .2s; white-space: nowrap; }
.nav-links a:hover { color: var(--blue); }
.lang-switch {
  display: inline-flex; align-items: center; gap: 2px;
  padding: 3px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--bg-soft);
}
.nav-links .lang-switch a {
  padding: 5px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 800; letter-spacing: .5px; color: var(--muted-2);
}
.nav-links .lang-switch a:hover { color: var(--blue); }
.nav-links .lang-switch a.active { background: var(--blue); color: #fff; }
/* .nav-links a'dan daha yuksek ozgullukte: buton linki her durumda kendi rengini korumali */
.nav-links a.btn-primary, .nav-links a.btn-primary:hover { color: #fff; }
.menu-toggle { display: none; background: none; border: none; color: var(--ink); cursor: pointer; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: 999px;
  font-size: 15px; font-weight: 600; cursor: pointer; border: none;
  transition: transform .2s, box-shadow .2s, background .2s, border-color .2s, color .2s;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 8px 26px rgba(0, 119, 252, 0.28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(0, 119, 252, 0.38); }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-white { background: #fff; color: var(--ink); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28); }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255, 255, 255, 0.35); }
.btn-outline:hover { border-color: #fff; background: rgba(255, 255, 255, 0.08); }
.nav .btn { padding: 11px 24px; font-size: 14px; }

/* ---------- Section headers ---------- */
.sec-head { max-width: 740px; margin: 0 auto 64px; text-align: center; }
.sec-head.left { margin-left: 0; text-align: left; }
.kicker {
  display: inline-block; color: var(--blue); font-weight: 700; font-size: 13px;
  text-transform: uppercase; letter-spacing: 2.5px; margin-bottom: 14px;
}
.sec-head h2 {
  font-size: clamp(30px, 4.4vw, 46px); font-weight: 800;
  letter-spacing: -1.6px; line-height: 1.12; color: var(--ink); margin-bottom: 16px;
}
.sec-head p { color: var(--muted); font-size: 17.5px; }

/* koyu bolumlerde */
.dark { background: var(--ink); color: rgba(255, 255, 255, 0.82); }
.dark .sec-head h2, .dark h3 { color: #fff; }
.dark .sec-head p { color: rgba(255, 255, 255, 0.62); }
.dark .kicker { color: var(--cyan-light); }

/* ---------- Animated gradient blobs ---------- */
.blob {
  position: absolute; border-radius: 50%; filter: blur(95px);
  pointer-events: none; z-index: 0;
  animation: blobFloat 16s ease-in-out infinite;
}
@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(45px, -35px) scale(1.12); }
  66% { transform: translate(-35px, 30px) scale(0.92); }
}

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s ease, transform .8s ease; }
.reveal.show { opacity: 1; transform: none; }

/* ---------- Footer ---------- */
footer { background: var(--ink-deep); color: rgba(255, 255, 255, 0.6); padding: 64px 0 40px; }
.foot-top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; margin-bottom: 44px; }
.foot-brand { max-width: 330px; }
.foot-brand .logo { margin-bottom: 16px; }
.foot-brand p { font-size: 15px; color: rgba(255, 255, 255, 0.55); }
.foot-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.foot-col h4 { font-size: 13px; font-weight: 700; letter-spacing: 1.6px; text-transform: uppercase; color: #fff; margin-bottom: 16px; }
.foot-col a, .foot-col span { display: block; font-size: 15px; color: rgba(255, 255, 255, 0.6); margin-bottom: 10px; transition: color .2s; }
.foot-col a:hover { color: var(--cyan-light); }
.foot-bottom a { color: rgba(255, 255, 255, 0.78); font-weight: 600; transition: color .2s; }
.foot-bottom a:hover { color: #fff; }
.foot-bottom {
  border-top: 1px solid var(--line-dark); padding-top: 26px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 14px; color: rgba(255, 255, 255, 0.45);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  section { padding: 80px 0; }
  .sec-head { margin-bottom: 46px; }
}
@media (max-width: 700px) {
  .nav-links {
    position: absolute; top: 76px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; padding: 22px 24px 26px; gap: 18px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links .btn { justify-content: center; }
  .nav-links .lang-switch { align-self: center; }
  .menu-toggle { display: block; }
  .foot-cols { gap: 36px; }
}