* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}
html { scroll-behavior: smooth; }
:root {
  --bg: #0b0d12;
  --surface: #121621;
  --text: #e6e9ef;
  --muted: #9aa4b2;
  --primary: #7c5cff;
  --primary-600: #6a49ff;
  --accent: #00d4ff;
  --card: #171b26;
  --border: #212838;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
}
header {
  background: rgba(11, 13, 18, 0.8);
  padding: 1rem;
}
.announcement {
  background: linear-gradient(90deg, rgba(124,92,255,0.25), rgba(0,212,255,0.25));
  color: #e6e9ef;
  text-align: center;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
}
.announcement strong { color: #fff; }
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}
.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #fff;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 1rem;
}
.nav-links a {
  color: #fff;
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  transition: color 0.25s, background-color 0.25s;
}
.nav-links a:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}
.hero {
  background: radial-gradient(1200px 600px at 20% -10%, rgba(124,92,255,0.35), transparent),
              radial-gradient(900px 500px at 80% 10%, rgba(0,212,255,0.25), transparent),
              linear-gradient(180deg, #0b0d12 0%, #0b0d12 100%);
  color: var(--text);
  text-align: center;
  padding: 5rem 1rem;
}
.hero h1 { font-size: 3rem; letter-spacing: -0.5px; }
.hero p { color: var(--muted); margin-top: 0.5rem; }
.hero .btn {
  margin-top: 1rem;
  display: inline-block;
  padding: 0.7rem 1.5rem;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  box-shadow: 0 10px 20px rgba(124,92,255,0.35);
  transition: transform 0.2s, background 0.25s;
}
.hero .btn:hover {
  background: var(--primary-600);
  transform: translateY(-2px);
}
.content {
  padding: 2rem;
  max-width: 900px;
  margin: auto;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
.product-media {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.product-media img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0a0d14;
}
.product-card {
  padding: 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  transition: transform 0.25s, box-shadow 0.3s, border-color 0.25s;
  color: var(--text);
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(124,92,255,0.5);
  box-shadow: 0 16px 40px rgba(124,92,255,0.2);
}
.product-card h3 { margin-bottom: 0.35rem; }
.product-card p { color: var(--muted); margin-bottom: 0.75rem; }
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-form input,
.contact-form textarea {
  padding: 0.8rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  width: 100%;
}
.contact-form button {
  padding: 0.8rem;
  border: none;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.25s, transform 0.2s;
}
.contact-form button:hover {
  background: var(--primary-600);
  transform: translateY(-1px);
}
footer {
  background: #0c0f16;
  color: #cfd6e6;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}
footer .socials { display: flex; gap: 0.75rem; justify-content: center; margin-top: 0.5rem; }
footer .socials a { color: #cfd6e6; text-decoration: none; opacity: 0.85; }
footer .socials a:hover { opacity: 1; color: #fff; }

/* Genel buton stili */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.1rem;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
}

/* Burger menü */
.burger {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.05);
  color: #fff;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 64px;
    right: 16px;
    left: 16px;
    background: rgba(18,22,33,0.98);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 0.75rem;
    display: grid;
    gap: 0.25rem;
    transform: scale(0.98);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s;
  }
  .nav-links.open {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
  }
  .burger { display: inline-grid; place-items: center; }
}