/* lavin tanıtım sitesi — ortak stil (JavaScript yok) */
:root {
  --ana: #0f172a;
  --ikincil: #64748b;
  --vurgu: #0ea5e9;
  --vurgu-koyu: #0369a1;
  --acik: #f8fafc;
  --cizgi: #e2e8f0;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ana);
  background: #fff;
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}
img, svg { max-width: 100%; }
a { color: var(--vurgu-koyu); }
a:focus-visible, .btn:focus-visible {
  outline: 3px solid var(--vurgu);
  outline-offset: 3px;
  border-radius: 6px;
}
.kap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* Üst menü */
.ust { border-bottom: 1px solid var(--cizgi); background: #fff; position: sticky; top: 0; z-index: 10; }
.ust .kap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; padding-top: 12px; padding-bottom: 12px; }
.logo { font-weight: 900; letter-spacing: -1px; color: var(--ana); text-decoration: none; font-size: 28px; line-height: 1; }
.ust nav { display: flex; flex-wrap: wrap; gap: 4px 20px; order: 3; width: 100%; }
.ust nav a { color: var(--ana); text-decoration: none; font-weight: 500; font-size: 15px; padding: 6px 2px; border-bottom: 2px solid transparent; }
.ust nav a:hover { border-bottom-color: var(--vurgu); }
.ust nav a[aria-current="page"] { border-bottom-color: var(--vurgu); font-weight: 600; }
@media (min-width: 720px) {
  .ust nav { order: 0; width: auto; gap: 28px; }
}

/* Butonlar */
.btn { display: inline-block; padding: 11px 20px; border-radius: 8px; font-weight: 600; font-size: 15px; text-decoration: none; border: 1.5px solid var(--vurgu); background: var(--vurgu); color: #04202e; text-align: center; }
.btn:hover { background: #38bdf8; border-color: #38bdf8; }
.btn.ikincil { background: transparent; color: var(--ana); border-color: var(--ana); }
.btn.ikincil:hover { background: var(--acik); }
.btn.kucuk { padding: 8px 14px; font-size: 14px; }

/* Bölümler */
section { padding: 56px 0; }
section.gri { background: var(--acik); border-top: 1px solid var(--cizgi); border-bottom: 1px solid var(--cizgi); }
h1 { font-size: 34px; line-height: 1.15; letter-spacing: -0.8px; margin: 0 0 16px; font-weight: 800; }
h2 { font-size: 26px; line-height: 1.25; letter-spacing: -0.4px; margin: 0 0 12px; font-weight: 700; }
h3 { font-size: 18px; line-height: 1.35; margin: 0 0 8px; font-weight: 700; }
p { margin: 0 0 14px; }
.soluk { color: var(--ikincil); }
.hero { padding: 64px 0 56px; }
.hero p.alt { font-size: 18px; color: var(--ikincil); max-width: 680px; }
.butonlar { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
@media (min-width: 720px) {
  h1 { font-size: 48px; }
  h2 { font-size: 32px; }
  .hero { padding: 96px 0 80px; }
  .hero p.alt { font-size: 20px; }
}

/* Izgara ve kartlar */
.izgara { display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 28px; }
@media (min-width: 720px) {
  .izgara.dort { grid-template-columns: repeat(2, 1fr); }
  .izgara.uc { grid-template-columns: repeat(3, 1fr); }
  .izgara.iki { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .izgara.dort { grid-template-columns: repeat(4, 1fr); }
}
.kart { background: #fff; border: 1px solid var(--cizgi); border-radius: 12px; padding: 22px; }
.kart p:last-child, .kart ul:last-child { margin-bottom: 0; }
.adim-no { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%; background: var(--ana); color: #fff; font-weight: 700; font-size: 15px; margin-bottom: 12px; }
.ikon { width: 40px; height: 40px; color: var(--vurgu-koyu); margin-bottom: 12px; display: block; }
.kart ul { margin: 0; padding-left: 20px; }
.kart li { margin-bottom: 6px; }
.kart h2.kart-baslik { font-size: 20px; }

/* Bant */
.bant { background: var(--ana); color: #fff; text-align: center; }
.bant h2 { color: #fff; }
.bant .butonlar { justify-content: center; }
.not-bandi { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.not-bandi p { margin: 0; max-width: 720px; }

/* İletişim */
.posta { display: inline-block; font-size: 22px; font-weight: 700; word-break: break-all; margin: 8px 0 0; }
@media (min-width: 720px) { .posta { font-size: 32px; } }
.ing p { max-width: 760px; }

/* Alt bilgi */
.alt-bilgi { background: var(--acik); border-top: 1px solid var(--cizgi); padding: 32px 0 24px; font-size: 14px; color: var(--ikincil); }
.alt-bilgi .logo { font-size: 22px; }
.alt-bilgi .satir { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between; }
.alt-bilgi p { margin: 8px 0 0; max-width: 460px; }
.alt-bilgi a { color: var(--ana); }
.alt-alt { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
.by-volks { font-size: 12px; color: #94a3b8; margin-left: auto; }

/* satir ici stil yerine (CSP style-src self) */
.hero.dar { padding-bottom: 24px; }
section.ust-dar { padding-top: 24px; }
.izgara.ust-sifir { margin-top: 0; }