html {
  scroll-behavior: smooth;
}
*{
    box-sizing: border-box;
    padding: 0;
    margin: 0;
    list-style: none;
    text-decoration: none;
    font-family: 'Cinzel', serif;
}

body{
   background-color: #0F0F0F;
   color: #FFFFFF;
   min-height: 100vh;
   line-height: 1.6;
}
img, video, iframe {
    max-width: 100%;
    height: auto;
    display: block;
}
button, input, textarea, select {
    font-family: inherit;
}
:root{
--color-gold: #F0C060;       /* başlık, vurgu */
--color-gold-dark: #C9A84C;  /* buton, border */
--color-black: #0A0A0A;      /* header, footer */
--color-surface: #1A1A1A;    /* kartlar */
--color-muted: #888888;      /* ikincil yazılar */
}

    
.header{
    width: 100%;
    max-width: 1800px;
    margin: 0 auto;
    background-color: var(--color-black);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
    padding: 0 120px;
    border-bottom: 1px solid var(--color-gold-dark);
    border-radius: 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 99999;
    gap: 16px;
}

.l-nav{
    display: flex;
    align-items:center;
    gap: 30px;
    flex: 1;
}
.r-nav{
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.nav-item{
    color: var(--color-muted);
  transition: all .3s ease-in-out;
  background-color: transparent;
  
}
.nav-item:hover{
  color: var(--color-gold);
   box-shadow: 0 4px 12px rgba(240, 192, 96, 0.3);
}

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border: 1px solid var(--color-gold-dark);
    background: transparent;
    color: var(--color-gold);
    border-radius: 12px;
    cursor: pointer;
}

.nav-toggle i {
    font-size: 22px;
}

.header h2{
color: var(--color-gold);
}
.hero {
  display: flex;
  align-items: center;
  gap: 60px;
  padding: 180px 150px;
}
.hero-text {
  flex: 1;
}
.hero-title {

  font-size: 48px;
  font-weight: 700;
  letter-spacing: 5px;
  color: var(--color-gold);
  margin: 0 0 12px;
}
.hero-sub {

  font-size: 11px;
  letter-spacing: 4px;
  color: var(--color-muted);
  margin: 0 0 28px;
}
.btn-gold {
  display: inline-block;

  font-size: 20px;
  letter-spacing: 2px;
  background: var(--color-gold-dark);
  color: #0A0A0A;
  padding: 12px 28px;
  border-radius: 6px;
  font-weight: 600;
}
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 250px;
}
.code-block {
  background: #1A1A1A;
  border: 0.5px solid #2A2A2A;
  border-radius: 8px;
  padding: 24px 19px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.code-line {
  height: 9px;
  border-radius: 4px;
  background: #2A2A2A;
  width: 95%;
}
.code-line.gold {
  background: var(--color-gold-dark);
  width: 65%;
}
.code-line.short {
  width: 45%;
}

/* Responsive layout */
@media (max-width: 1024px) {
    .header {
        padding: 0 40px;
    }

    .hero {
        flex-direction: column;
        align-items: flex-start;
        padding: 160px 40px 80px;
    }

    .hero-title {
        font-size: 42px;
    }

    .hero-sub {
        font-size: 13px;
    }

    .hero-visual {
        width: 100%;
        max-width: 420px;
    }

    .services {
        max-width: 100%;
        margin: 60px 20px;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0 20px;
        justify-content: space-between;
        border-radius: 0;
    }

    .l-nav {
        width: 100%;
        justify-content: space-between;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 140px 20px 60px;
    }

    .hero-title {
        font-size: 32px;
        letter-spacing: 3px;
    }

    .hero-sub {
        font-size: 12px;
    }

    .r-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-black);
        flex-direction: column;
        gap: 0;
        padding: 20px 20px 30px;
        border-bottom-left-radius: 15px;
        border-bottom-right-radius: 15px;
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
    }

    .r-nav a {
        display: block;
        width: 100%;
        padding: 14px 0;
        border-bottom: 1px solid #222;
    }

    .header.menu-open .r-nav {
        display: flex;
    }

    .nav-item {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 0 16px;
    }

    .hero {
        padding: 120px 16px 50px;
        gap: 30px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-visual {
        max-width: 100%;
    }

    .btn-gold {
        width: 100%;
        text-align: center;
    }
}