/* =========================================================
   Dobrum System — legacy + next chapter
   ========================================================= */
:root{
  --navy-darkest:#050d20;
  --navy-dark:#081428;
  --navy:#0c2a5c;
  --blue:#2b67bd;
  --blue-bright:#3f8bff;
  --btn-a:#1f5fd8;
  --btn-b:#2f7bff;
  --heading:#0e2347;
  --body:#5d6b82;
  --light-bg:#eef3fa;
  --border:#e3e9f2;
  --white:#ffffff;
  --radius:12px;
  --maxw:1180px;
  --shadow:0 18px 45px rgba(10,30,70,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Poppins',system-ui,sans-serif;
  color:var(--body);background:var(--white);line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
svg{display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- Ortak ---------- */
.kicker{
  display:inline-block;color:var(--blue);font-size:12px;font-weight:600;
  letter-spacing:2px;text-transform:uppercase;margin-bottom:14px;
}
.section-title{color:var(--heading);font-weight:700;line-height:1.15;letter-spacing:-.4px;font-size:32px}
.sec-head.center{text-align:center;max-width:680px;margin:0 auto 50px}
.rich{font-size:15.5px;color:var(--body)}
.rich p{margin-bottom:14px}
.rich strong{color:var(--heading);font-weight:600}

/* ---------- Butonlar ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:500;font-size:14px;
  padding:13px 24px;border-radius:9px;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn svg{width:16px;height:16px}
.btn-primary{background:linear-gradient(135deg,var(--btn-a),var(--btn-b));color:#fff;
  box-shadow:0 10px 26px rgba(47,123,255,.34)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(47,123,255,.46)}
.btn-ghost{color:#fff;border:1px solid rgba(255,255,255,.28)}
.btn-ghost:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.5)}

/* ---------- Header ---------- */
.site-header{position:absolute;top:0;left:0;right:0;z-index:30;padding:22px 0}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;flex-direction:column;line-height:1}
.brand-name{font-weight:800;font-size:25px;color:#fff;letter-spacing:-.5px}
.brand-sub{font-weight:300;font-size:11px;color:#cdddff;letter-spacing:6px;text-transform:lowercase;margin-top:2px;padding-left:2px}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav>a{color:#dfe8f7;font-size:var(--nav-fs,14px);position:relative;padding:4px 0;transition:color .2s}
.main-nav>a:hover,.main-nav>a.active{color:#fff}
.main-nav>a.active::after{content:"";position:absolute;left:0;bottom:-4px;width:20px;height:2px;background:var(--blue-bright);border-radius:2px}
.header-right{display:flex;align-items:center;gap:18px}
.lang-switch{display:flex;align-items:center;gap:12px}
.lang-switch a{display:inline-flex;align-items:center;gap:6px;color:#8fa6cc;font-size:12px;font-weight:500;
  padding:5px 9px;border-radius:7px;border:1px solid transparent;transition:.2s}
.lang-switch a .flag{width:20px;height:14px;border-radius:2px;box-shadow:0 0 0 1px rgba(255,255,255,.15)}
.lang-switch a.on{color:#fff;background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.18)}
.lang-switch a:hover{color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:620px;display:flex;align-items:center;padding:170px 0 100px;overflow:hidden;
  background:radial-gradient(120% 100% at 80% 0%,#0e2350 0%,#081428 55%,#050f22 100%)}
.hero-bg{position:absolute;inset:0;background:url('../img/hero-wave.png') no-repeat right center;background-size:auto 120%;opacity:.95;pointer-events:none}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#081428 20%,rgba(8,20,40,.55) 44%,rgba(8,20,40,0) 72%)}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-content{max-width:620px}
.hero-brand{font-weight:800;font-size:78px;letter-spacing:6px;color:#fff;line-height:1;margin-bottom:14px}
.hero-tagline{color:var(--blue-bright);font-size:14px;font-weight:500;letter-spacing:3px;text-transform:uppercase;margin-bottom:26px}
.hero-lead{color:#eaf1ff;font-size:21px;font-weight:400;line-height:1.45;max-width:560px;margin-bottom:16px}
.hero-sub{color:#9fb4d6;font-size:15px;max-width:540px;margin-bottom:34px}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* ---------- Hakkımızda ---------- */
.about{background:#fff;padding:96px 0}
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.about-text .section-title{margin-bottom:20px}
.check-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px 22px;margin:26px 0}
.check-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--heading);font-weight:500}
.check-list svg{width:18px;height:18px;color:var(--blue);flex:0 0 18px}
.about-note{font-size:14px;color:#7a879e;font-style:italic;border-left:3px solid var(--blue);padding-left:14px}
.about-visual{position:relative}
.about-visual img{width:100%;height:340px;object-fit:cover;border-radius:16px;box-shadow:var(--shadow)}
.visual-card{position:relative;height:340px;border-radius:16px;overflow:hidden;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:18px;color:#5e92e8;
  background:radial-gradient(120% 120% at 50% 0%,#16356a,#081830);box-shadow:var(--shadow)}
.visual-card svg{width:90px;height:90px;stroke-width:1.1;position:relative;z-index:2}
.visual-card span{font-size:15px;letter-spacing:3px;color:#9cc0ff;font-weight:500;position:relative;z-index:2}
.vc-glow{position:absolute;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(63,139,255,.35),transparent 70%);filter:blur(20px)}

/* ---------- Zaman Tüneli ---------- */
.timeline-sec{background:linear-gradient(180deg,#f4f7fc,#eaf0f9);padding:84px 0}
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.timeline::before{content:"";position:absolute;top:7px;left:4%;right:4%;height:2px;
  background:linear-gradient(90deg,var(--blue),#a9c4ef)}
.tl-item{position:relative;text-align:center;padding-top:28px}
.tl-dot{position:absolute;top:0;left:50%;transform:translateX(-50%);width:16px;height:16px;border-radius:50%;
  background:#fff;border:4px solid var(--blue);box-shadow:0 0 0 4px rgba(43,103,189,.15)}
.tl-year{font-weight:700;color:var(--heading);font-size:18px;margin-bottom:6px}
.tl-text{font-size:13.5px;color:#5d6b82;max-width:170px;margin:0 auto}

/* ---------- Uzmanlık ---------- */
.expertise{background:#fff;padding:96px 0}
.exp-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.exp-card{padding:30px 22px;border:1px solid var(--border);border-radius:14px;text-align:center;
  transition:transform .25s,box-shadow .25s,border-color .25s;background:#fff}
.exp-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.exp-icon{width:58px;height:58px;margin:0 auto 18px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#eaf1ff,#dbe8ff);color:var(--blue)}
.exp-icon svg{width:30px;height:30px}
.exp-card h3{color:var(--heading);font-size:16px;font-weight:600;margin-bottom:10px}
.exp-card p{font-size:12.5px;color:#7a879e;line-height:1.7}

/* ---------- Projeler ---------- */
.projects{background:linear-gradient(180deg,#f4f7fc,#eaf0f9);padding:96px 0}
.proj-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.proj-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:34px;box-shadow:0 10px 30px rgba(10,30,70,.05)}
.proj-head{display:flex;align-items:center;gap:18px;margin-bottom:22px}
.proj-icon{width:56px;height:56px;flex:0 0 56px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(120% 120% at 50% 0%,#16356a,#0a1f3f);color:#6ea2ff}
.proj-icon svg{width:30px;height:30px}
.proj-head h3{color:var(--heading);font-size:20px;font-weight:700}
.proj-sub{font-size:13.5px;color:#7a879e}
.proj-list{list-style:none;display:grid;gap:11px}
.proj-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:#46546d}
.proj-list svg{width:17px;height:17px;color:var(--blue);flex:0 0 17px}

/* ---------- Rakamlar ---------- */
.stats{padding:54px 0;background:linear-gradient(90deg,#0a1f47,#123a86 50%,#0a1f47);position:relative;overflow:hidden}
.stats::before{content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle,rgba(120,170,255,.16) 1px,transparent 1px);background-size:22px 22px;opacity:.5}
.stats-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-num{color:#fff;font-size:40px;font-weight:800;line-height:1;letter-spacing:-1px}
.stat-label{color:#aec4ec;font-size:13.5px;margin-top:8px}

/* ---------- Galeri ---------- */
.gallery{background:#fff;padding:96px 0}
.gal-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.gal-item{border-radius:14px;overflow:hidden;border:1px solid var(--border);background:#fff;box-shadow:0 8px 24px rgba(10,30,70,.05)}
.gal-item img{width:100%;height:180px;object-fit:cover}
.gal-ph{height:180px;display:flex;align-items:center;justify-content:center;color:#9db8e6;
  background:linear-gradient(135deg,#eef3fb,#dde8f8)}
.gal-ph svg{width:46px;height:46px;stroke-width:1.2}
.gal-item figcaption{padding:14px 16px;font-size:13.5px;color:var(--heading);font-weight:500;text-align:center}

/* ---------- Kapanış ---------- */
.closing{background:linear-gradient(180deg,#eaf0f9,#fff);padding:40px 0 96px}
.closing-card{position:relative;overflow:hidden;border-radius:20px;padding:60px 56px;
  background:linear-gradient(115deg,#0a1f47 0%,#123a86 70%,#0a1f47 100%);
  display:grid;grid-template-columns:1.3fr .7fr;gap:44px;align-items:center}
.closing-card::before{content:"";position:absolute;inset:0;
  background:url('../img/hero-wave.png') no-repeat center right;background-size:cover;opacity:.18}
.closing-text,.closing-contact{position:relative;z-index:2}
.closing-text h2{color:#fff;font-size:30px;font-weight:700;margin-bottom:18px;letter-spacing:-.4px}
.closing-text .rich{color:#cfe0fb;margin-bottom:28px}
.closing-text .rich strong{color:#fff}
.closing-contact{display:flex;flex-direction:column;gap:16px}
.closing-contact a,.closing-contact span{display:flex;align-items:center;gap:13px;color:#dce7fb;font-size:15px}
.closing-contact svg{width:20px;height:20px;color:#9cc0ff;flex:0 0 20px}
.closing-contact a:hover{color:#fff}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-darkest);padding:58px 0 26px;color:#9fb0cc}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.07)}
.footer-brand .brand{margin-bottom:16px}
.footer-slogan{font-family:'Caveat',cursive;font-size:21px;color:#bcd2ff;margin-bottom:10px}
.footer-about{font-size:13px;max-width:250px;color:#8294b3}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-col a,.footer-line{display:block;font-size:13.5px;color:#94a6c4;margin-bottom:11px;transition:color .2s}
.footer-col a:hover{color:var(--blue-bright)}
.socials{display:flex;gap:10px}
.socials a{width:34px;height:34px;border-radius:8px;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;transition:.2s}
.socials a:hover{transform:translateY(-2px);background:var(--btn-b)}
.socials svg{width:18px;height:18px}
.footer-bottom{padding-top:22px;font-size:12.5px;color:#6f819f}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero-brand{font-size:60px}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .timeline{grid-template-columns:repeat(3,1fr);gap:34px 20px}
  .timeline::before{display:none}
  .exp-grid{grid-template-columns:repeat(3,1fr)}
  .gal-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
  .footer-brand{grid-column:1 / -1}
  .closing-card{grid-template-columns:1fr;gap:30px}
}
@media (max-width:760px){
  .nav-toggle{display:flex;z-index:40}
  .main-nav{position:fixed;top:0;right:-100%;height:100vh;width:74%;max-width:320px;background:#0a1730;
    flex-direction:column;align-items:flex-start;padding:90px 30px 30px;gap:20px;transition:right .3s ease;z-index:35;box-shadow:-20px 0 50px rgba(0,0,0,.4)}
  .main-nav.open{right:0}
  .main-nav>a{font-size:var(--nav-fs,16px)}
  .hero{padding:140px 0 80px;min-height:540px}
  .hero-brand{font-size:50px;letter-spacing:4px}
  .hero-lead{font-size:18px}
  .hero-bg{opacity:.4}
  .hero-bg::after{background:linear-gradient(90deg,#081428 42%,rgba(8,20,40,.4))}
  .timeline{grid-template-columns:1fr 1fr}
  .exp-grid{grid-template-columns:1fr 1fr}
  .proj-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .closing-card{padding:40px 26px}
  .check-list{grid-template-columns:1fr}
}
@media (max-width:430px){
  .container{padding:0 18px}
  .hero-brand{font-size:42px}
  .timeline,.exp-grid,.stats-grid,.gal-grid,.footer-grid{grid-template-columns:1fr}
  .lang-switch a span{display:none}
}

/* ---------- Marka logosu ---------- */
.brand-logo{height:34px;width:auto;max-width:none;flex:0 0 auto;align-self:flex-start;display:block}
.footer-brand .brand-logo{height:30px}
@media (max-width:760px){ .brand-logo{height:28px} }

/* ---------- Portfolyo / Çalışmalar ---------- */
.portfolio{background:#fff;padding:96px 0}
.pf-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.pf-card{border:1px solid var(--border);border-radius:16px;overflow:hidden;background:#fff;
  transition:transform .25s,box-shadow .25s,border-color .25s;display:flex;flex-direction:column}
.pf-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.pf-img{height:240px;overflow:hidden;background:linear-gradient(135deg,#eef3fb,#dde8f8);position:relative}
.pf-img img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform .45s}
.pf-card:hover .pf-img img{transform:scale(1.04)}
.pf-ph{height:100%;display:flex;align-items:center;justify-content:center;color:#9db8e6}
.pf-ph svg{width:62px;height:62px;stroke-width:1.1}
.pf-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.pf-tag{align-self:flex-start;font-size:11px;font-weight:600;letter-spacing:.5px;text-transform:uppercase;
  color:var(--blue);background:#eaf1ff;padding:5px 12px;border-radius:20px;margin-bottom:14px}
.pf-body h3{color:var(--heading);font-size:19px;font-weight:700;margin-bottom:9px}
.pf-body p{font-size:14px;color:var(--body);margin-bottom:18px;flex:1}
.pf-link{align-self:flex-start;display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-weight:600;font-size:14px}
.pf-link svg{width:16px;height:16px;transition:transform .2s}
.pf-link:hover svg{transform:translateX(3px) rotate(-8deg)}
@media (max-width:760px){ .pf-grid{grid-template-columns:1fr} .pf-img{height:200px} }

/* ---------- Mobil menü iletişim bloğu ---------- */
.nav-contact{display:none}
@media (max-width:760px){
  .nav-contact{
    display:flex;flex-direction:column;gap:4px;
    margin-top:22px;padding-top:20px;width:100%;
    border-top:1px solid rgba(255,255,255,.12);
  }
  .nav-contact a,.nav-contact .nc-line{
    display:flex;align-items:center;gap:11px;
    color:#cbd8ef;font-size:14px;padding:9px 0;font-weight:400;
  }
  .nav-contact a:hover{color:#fff}
  .nav-contact svg{width:18px;height:18px;color:var(--blue-bright);flex:0 0 18px}
  .nav-contact small{font-size:10px;color:#7fa0e0;border:1px solid rgba(127,160,224,.4);
    border-radius:4px;padding:1px 5px;margin-left:4px;letter-spacing:.5px}
}