/* Fonts: Poppins (headings), Inter (body) */
:root{
  --bg:#0f1115;
  --bg-alt:#151923;
  --card:#1b2130;
  --text:#e9eef7;
  --muted:#a8b3c7;
  --primary:#d2a55d; /* kehribar/altın vurgu */
  --primary-800:#b78841;
  --border:#263044;
  --success:#4caf50;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
.container{width:min(1200px,92%);margin-inline:auto}
.section{padding:72px 0}
.section.alt{background:var(--bg-alt)}
.section-head{margin-bottom:28px}
.section-head h2{font-family:Poppins,Inter,sans-serif;font-weight:700;letter-spacing:.2px;margin:0 0 8px}
.section-head p{color:var(--muted);margin:0}
.center{text-align:center}
.mt-sm{margin-top:16px}
.mt-lg{margin-top:40px}
.tiny{font-size:.9rem;color:var(--muted);padding:16px 0;border-top:1px solid var(--border);margin-top:24px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:linear-gradient(180deg,rgba(15,17,21,.9),rgba(15,17,21,.6) 60%,transparent);backdrop-filter:blur(6px)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.logo img{height:66px;width:auto;display:block;filter:invert(1) brightness(1.08) drop-shadow(0 1px 0 rgba(0,0,0,.25));}
.logo .logo-text{display:block;font-weight:800;letter-spacing:.6px;font-family:Poppins}
.logo .logo-text span{color:var(--primary)}
.nav{display:flex;gap:22px;align-items:center}
.nav a{color:var(--muted);text-decoration:none;font-weight:500}
.nav a:hover{color:var(--text)}
.hamburger{display:none;background:transparent;border:0;cursor:pointer}
.hamburger span{display:block;width:24px;height:2px;background:var(--text);margin:5px 0}

/* Hero */
.hero{padding:92px 0 48px;background:radial-gradient(1200px 600px at 80% -10%,rgba(210,165,93,.15),transparent 60%),
linear-gradient(180deg,rgba(21,25,35,.8),rgba(21,25,35,0));}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.hero h1{font-family:Poppins;font-size:48px;line-height:1.15;margin:0 0 10px}
.hero p{color:var(--muted);margin:0 0 18px}

.actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:10px;border:1px solid var(--border);color:var(--text);text-decoration:none;font-weight:600}
.btn-sm{padding:8px 12px;border-radius:8px}
.btn-primary{background:linear-gradient(180deg,var(--primary),var(--primary-800));border-color:transparent;color:#111}
.btn-primary:hover{filter:brightness(.95)}
.btn-outline{background:transparent}
.btn-outline:hover{border-color:var(--primary);color:var(--text)}

/* Badges (Certificates) */
.badges{display:flex;gap:14px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:8px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:var(--bg-alt);color:var(--text)}
.badge .icon{font-size:18px;line-height:1}

/* Before / After */
.before-after{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ba-item{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--border)}
.ba-item img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.ba-item:hover img{transform:scale(1.04)}
.ba-item figcaption{position:absolute;left:10px;bottom:10px;background:rgba(0,0,0,.55);color:#fff;padding:6px 10px;border-radius:8px;font-weight:600;font-size:.9rem}
.testimonial{border-left:3px solid var(--primary);padding:10px 14px;background:rgba(210,165,93,.06);border-radius:8px;border:1px solid var(--border)}
.testimonial cite{display:block;margin-top:6px;color:var(--muted);font-style:normal}

/* Office Photos */
.office-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.office-grid img{border-radius:12px;border:1px solid var(--border)}

/* WhatsApp promise note */
.fab-note{position:fixed;right:22px;bottom:110px;background:var(--bg-alt);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:8px 12px;font-weight:600;font-size:.9rem;box-shadow:0 6px 18px rgba(0,0,0,.25);z-index:60}
.fab-note::after{content:"";position:absolute;right:14px;bottom:-7px;border:7px solid transparent;border-top-color:var(--bg-alt)}

@media (max-width: 860px){
  .before-after,.office-grid{grid-template-columns:1fr}
}

.stats{display:flex;gap:22px;margin-top:18px;flex-wrap:wrap}
.stat{background:var(--card);border:1px solid var(--border);padding:10px 14px;border-radius:12px}
.stat strong{font-size:20px}
.stat span{color:var(--muted);font-size:.95rem}
.hero-media .media-card{border-radius:16px;overflow:hidden;border:1px solid var(--border);box-shadow:0 20px 60px rgba(0,0,0,.35)}

/* Cards & Grids */
.grid{display:grid;gap:18px}
.cards-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--border);padding:20px;border-radius:14px}
.card h3{font-family:Poppins;margin:0 0 8px}
.card p{color:var(--muted);margin:0}

/* Projects */
.projects{grid-template-columns:repeat(3,1fr)}
.project{border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--card)}
.project img{aspect-ratio:16/11;object-fit:cover;transition:transform .28s ease, box-shadow .28s ease;cursor:zoom-in;will-change:transform}
.project:hover img{transform:scale(1.06)}
.project img.clicked{transform:scale(1.12);box-shadow:0 10px 30px rgba(0,0,0,.35)}
.project-info{padding:14px}
.project-info h3{font-family:Poppins;margin:0 0 6px}
.project-info p{color:var(--muted);margin:0}

/* Timeline */
.timeline{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.timeline li{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start}
.timeline .step{width:34px;height:34px;border-radius:999px;background:var(--primary);color:#111;display:inline-flex;align-items:center;justify-content:center;font-weight:800}
.timeline h4{margin:2px 0 6px;font-family:Poppins}
.timeline p{margin:0;color:var(--muted)}

/* Accordion */
.accordion details{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px}
.accordion summary{cursor:pointer;font-weight:600}
.accordion p{color:var(--muted);margin:6px 0 0}

/* Contact */
.contact-grid{grid-template-columns:1fr 1fr;align-items:start}
.contact-form{background:var(--card);border:1px solid var(--border);padding:18px;border-radius:12px}
.contact-form label{display:block;font-weight:600;margin-bottom:12px}
.contact-form input,.contact-form textarea{width:100%;margin-top:6px;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#0c0f14;color:var(--text)}
.contact-form .form-note{color:var(--muted);font-size:.9rem;margin:10px 0 0}
.map{display:grid;gap:12px}
.contact-info p{margin:0;color:var(--muted)}

/* Footer */
.site-footer{background:var(--bg-alt);padding:36px 0 0;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px}
.footer-grid h4{font-family:Poppins;margin:0 0 8px}
.footer-grid ul{list-style:none;margin:0;padding:0}
.footer-grid a{color:var(--muted);text-decoration:none}
.footer-grid a:hover{color:var(--text)}

/* Floating Social FABs */
.social-fab{position:fixed;right:18px;bottom:18px;width:60px;height:60px;border-radius:999px;display:grid;place-items:center;box-shadow:0 14px 36px rgba(0,0,0,.45);border:2px solid rgba(255,255,255,.18);z-index:60;transition:transform .2s ease, box-shadow .2s ease}
.social-fab:hover{transform:translateY(-2px);box-shadow:0 18px 44px rgba(0,0,0,.5)}
.social-fab img{width:30px;filter:invert(1)}

.whatsapp-fab{right:18px;bottom:18px;background:#25D366}

.instagram-fab{right:90px;bottom:18px;background:radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%)}
.instagram-fab img{filter:none;width:28px}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}
.whatsapp-fab{animation:pulse 2.8s ease-in-out infinite}

/* Responsive */
@media (max-width: 980px){
  .hero-inner{grid-template-columns:1fr}
  .cards-3,.projects,.contact-grid,.footer-grid{grid-template-columns:1fr}
}
@media (max-width: 860px){
  .logo img{height:58px}
  .nav{position:fixed;inset:60px 14px auto 14px;background:var(--bg-alt);border:1px solid var(--border);border-radius:12px;padding:12px;display:none;flex-direction:column}
  .nav.open{display:flex}
  .hamburger{display:block}
}