:root{
  --bg: #0b0d0f;
  --surface: #121419;
  --muted: #9aa4b2;
  --text: #e6edf3;
  --primary: #00c2ff;   /* Vision için neon */
  --accent: #ff3b3b;    /* Yapım için kırmızı */
  --card: #171a21;
  --border: #232736;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

*{ box-sizing: border-box; }
html,body{ height: 100%; }
body{
  margin:0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg); color: var(--text);
}

/* Header */
.site-header{
  position: sticky; top:0; z-index: 20;
  display:flex; align-items:center; justify-content: space-between;
  padding: 14px 20px; background: rgba(11,13,15,.75); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand{ display:flex; align-items:center; gap:10px; font-weight:600; }
.logo{ color: var(--text); text-decoration:none; font-weight:800; letter-spacing:.3px; }
.divider{ color: var(--muted); }
.nav{ display:flex; gap:16px; align-items:center; }
.nav a{ color: var(--text); text-decoration:none; opacity:.9; }
.nav a:hover{ opacity:1; }
.btn{ display:inline-block; padding:10px 14px; border-radius:10px; text-decoration:none; font-weight:600; }
.btn-primary{ background: linear-gradient(135deg, var(--accent), #ff7a00); color:#fff; box-shadow: var(--shadow); }
.btn-secondary{ background: #223; color:#e7e7ff; border:1px solid #3a3e52; }
.btn-ghost{ background: transparent; border:1px solid var(--border); color:var(--text); }

/* Hero */
.hero{ position:relative; min-height: 70vh; display:grid; align-items:center; }
.hero-content{ position:relative; z-index:2; padding: 64px 20px; max-width: 1100px; margin: 0 auto; text-align:center; }
.hero h1{ margin:0 0 10px; font-size: clamp(28px, 5vw, 48px); line-height:1.12; }
.hero p{ margin: 0 auto 20px; max-width: 800px; color: var(--muted); }
.hero-cta{ display:flex; justify-content:center; gap:12px; flex-wrap:wrap; }

.hero-production .hero-content h1{ text-shadow: 0 6px 40px rgba(0,0,0,.5); }
.hero-production .btn-primary{ background: linear-gradient(135deg, var(--accent), #ff804a); }

.hero-agency .btn-primary{ background: linear-gradient(135deg, var(--primary), #6dfcff); color:#021016; }
.hero-bg{ position:absolute; inset:0; width:100%; height:100%; object-fit: cover; filter: saturate(1.1) contrast(1.05) brightness(.7); }
.hero-overlay{ position:absolute; inset:0; background: radial-gradient(1000px 500px at 50% 20%, rgba(0,0,0,.15), rgba(0,0,0,.65)), linear-gradient(to bottom, rgba(0,0,0,.25), rgba(0,0,0,.75)); }
.hero-bg-gradient{
  position:absolute; inset:0; z-index:1;
  background:
    radial-gradient(600px 300px at 20% 15%, rgba(0,194,255,.35), transparent 60%),
    radial-gradient(700px 350px at 80% 20%, rgba(255,59,59,.25), transparent 60%),
    linear-gradient(180deg, rgba(2,8,23,.7), rgba(2,8,23,.95));
}

/* Sections */
.section{ padding: 64px 20px; }
.container{ width: min(1200px, 100%); margin: 0 auto; }
.container.narrow{ width: min(900px, 100%); }
.section h2{ font-size: clamp(22px, 3.5vw, 34px); margin:0 0 12px; }
.section-lead{ color: var(--muted); margin-bottom: 26px; }

/* Cards */
.cards{ display:grid; grid-template-columns: repeat( auto-fit, minmax(260px, 1fr) ); gap:16px; }
.card{
  background: var(--card); border:1px solid var(--border); border-radius:16px; padding:18px;
  box-shadow: var(--shadow); display:flex; flex-direction:column; gap:10px;
}
.card h3{ margin:0; font-size: 18px; }
.card p{ color: var(--muted); margin:0; }
.card ul{ margin:6px 0 0; padding-left: 18px; color:#cdd6e0; }
.card-cta{ margin-top:auto; display:flex; gap:10px; flex-wrap:wrap; }
.card-badge{
  align-self:flex-start; font-size:12px; letter-spacing:.6px; text-transform:uppercase;
  padding:6px 10px; border-radius: 99px; color:#fff;
  background: linear-gradient(135deg, #3b82f6, #a855f7);
}

/* Portfolio placeholder */
.section-portfolio .muted{ color: var(--muted); }
.portfolio-grid{ display:grid; grid-template-columns: repeat( auto-fit, minmax(220px, 1fr) ); gap:16px; }
.placeholder .ph{
  height: 140px; border-radius: 16px; border:1px dashed #3a3e52;
  background: linear-gradient(135deg, rgba(255,255,255,.02), rgba(255,255,255,.04));
}

/* Footer */
.site-footer{ padding: 20px; border-top:1px solid var(--border); background: #0d1016; }
.site-footer .container{ display:flex; align-items:center; justify-content:space-between; gap:16px; }
.footer-nav{ display:flex; gap:12px; }
.footer-nav a{ color: var(--muted); text-decoration:none; }
.footer-nav a:hover{ color: var(--text); }

/* HOME split layout */
.home{ overflow:hidden; }
.split-home{
  display:flex; height: 100vh; width: 100%;
  --left-size: 70; --right-size: 30;
}
.panel{
  position:relative; flex: 0 0 auto;
  width: 0; /* flex-basis ile kontrol edilecek */
  overflow:hidden; cursor: pointer; transition: flex-basis .45s cubic-bezier(.22,.61,.36,1);
  border-right: 1px solid rgba(255,255,255,.06);
}
.panel:last-child{ border-right:none; }
.split-home .left{ flex-basis: calc(var(--left-size) * 1%); }
.split-home .right{ flex-basis: calc(var(--right-size) * 1%); }
.panel-video{ position:absolute; inset:0; width:100%; height:100%; object-fit: cover; filter: brightness(.7) saturate(1.1); }
.vignette{ position:absolute; inset:0; background: radial-gradient(1000px 600px at 50% 80%, rgba(0,0,0,.2), rgba(0,0,0,.65)); }
.panel-overlay{
  position:absolute; inset:0; display:grid; place-items:center; text-align:center; padding:20px;
}
.panel-overlay h1{ margin:0 0 10px; font-size: clamp(28px, 5vw, 54px); line-height:1.05; }
.panel-overlay p{ margin:0; color: #d0dae6; }

/* Farklı vurgu renkleri */
.home .left .panel-overlay h1{ color: #ffd1d1; text-shadow: 0 10px 30px rgba(255,0,0,.25); }
.home .right .panel-overlay h1{ color: #c9f7ff; text-shadow: 0 10px 30px rgba(0,194,255,.25); }

/* Erişilebilirlik */
.panel:focus{ outline: 3px solid #5eead4; outline-offset:-3px; }

/* Responsive */
@media (max-width: 900px){
  .split-home{ flex-direction: column; }
  .panel{ height: 50vh; width: 100%; border-right:none; border-bottom:1px solid rgba(255,255,255,.06); }
  .split-home .left, .split-home .right{ flex-basis: auto; }
}