/* ============================================================
   EFB Mühendislik — Ana stil dosyası
   ============================================================ */

:root{
  --red:#e11b22;
  --red-dark:#a80f15;
  --red-soft:#ff3b41;
  --ink:#0b0b0d;
  --ink-2:#111114;
  --ink-3:#17171b;
  --line:rgba(255,255,255,.10);
  --line-dark:rgba(0,0,0,.10);
  --text:#12131a;
  --muted:#6b6e7b;
  --muted-dark:#a7abb6;
  --paper:#f4f5f7;
  --white:#fff;
  --radius:6px;
  --shadow:0 18px 40px rgba(0,0,0,.14);
  --head:'Barlow Condensed',Inter,sans-serif;
  --max:1360px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-family:var(--head);letter-spacing:.01em;line-height:1.06}
p{margin:0}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 28px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:16px 30px;border-radius:var(--radius);
  font-weight:700;font-size:13.5px;letter-spacing:.09em;
  transition:.25s ease;border:1px solid transparent;white-space:nowrap;
}
.btn .arw{transition:transform .25s ease}
.btn:hover .arw{transform:translateX(5px)}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 10px 26px rgba(225,27,34,.28)}
.btn-primary:hover{background:var(--red-dark);box-shadow:0 14px 34px rgba(225,27,34,.4)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-outline{border-color:var(--red);color:var(--red)}
.btn-outline:hover{background:var(--red);color:#fff}
.btn-outline.dark{border-color:rgba(255,255,255,.3);color:#fff}
.btn-outline.dark:hover{background:#fff;color:var(--ink)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:rgba(255,255,255,.85)}
.btn-sm{padding:13px 22px;font-size:12.5px}
.btn-block{width:100%;justify-content:center}

.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;
  letter-spacing:.22em;color:var(--red);margin-bottom:14px;
}
.eyebrow.red{color:var(--red)}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  background:linear-gradient(180deg,rgba(8,8,10,.92),rgba(8,8,10,.55));
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(8,8,10,.97);box-shadow:0 10px 30px rgba(0,0,0,.5)}
.header-inner{display:flex;align-items:center;gap:26px;height:86px}

/* Yatay lockup; saydam PNG olduğu için zemine ek işlem gerekmez. */
.brand{
  display:block;flex-shrink:0;width:152px;height:52px;
  transition:transform .25s ease;
}
.brand:hover{transform:scale(1.04)}
.brand img{width:100%;height:100%;object-fit:contain;object-position:0 50%}

.brand-footer{width:190px;height:65px}

.main-nav{margin-left:auto}
.main-nav > ul{display:flex;align-items:center;gap:6px}
.main-nav > ul > li{position:relative}
.main-nav a{
  display:flex;align-items:center;gap:6px;padding:12px 15px;
  font-size:12.5px;font-weight:600;letter-spacing:.09em;color:#d6d8de;
  transition:color .2s ease;
}
.main-nav a:hover,.main-nav a.active{color:var(--red)}
.main-nav > ul > li > a.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;background:var(--red);
}
.caret{width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px)}

.sub{
  position:absolute;top:100%;left:0;min-width:230px;
  background:#111114;border:1px solid var(--line);border-radius:var(--radius);
  padding:8px;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:.22s ease;box-shadow:0 20px 40px rgba(0,0,0,.55);
}
.has-sub:hover .sub{opacity:1;visibility:visible;transform:translateY(0)}
.sub a{font-size:13px;letter-spacing:.01em;font-weight:500;text-transform:none;padding:10px 12px;border-radius:4px}
.sub a:hover{background:rgba(225,27,34,.12);color:#fff}

.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.burger{
  width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:.25s;
}
.burger:hover{background:rgba(255,255,255,.08)}
.burger span{width:18px;height:2px;background:#fff;transition:.25s}
.burger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============================================================
   SIDE RAIL
   ============================================================ */
.side-rail{
  position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:90;
  display:flex;flex-direction:column;
  background:rgba(18,18,21,.9);backdrop-filter:blur(8px);
  border:1px solid var(--line);border-right:0;border-radius:6px 0 0 6px;overflow:hidden;
}
.side-rail a{
  display:flex;flex-direction:column;align-items:center;gap:7px;
  width:92px;padding:16px 8px;color:#cdd0d7;font-size:10.5px;letter-spacing:.02em;
  border-bottom:1px solid var(--line);transition:.22s;text-align:center;
}
.side-rail a:last-child{border-bottom:0}
.side-rail a svg{width:22px;height:22px}
.side-rail a:hover{background:rgba(225,27,34,.14);color:#fff}
.side-rail .rail-cta{background:var(--red);color:#fff}
.side-rail .rail-cta:hover{background:var(--red-dark)}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:150px 0 90px;background:#08080a;overflow:hidden;
}
.hero-bg{position:absolute;inset:0}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 15% 40%,rgba(0,0,0,.85) 0%,rgba(0,0,0,.55) 45%,rgba(0,0,0,.9) 100%),
    linear-gradient(180deg,rgba(8,8,10,.9),rgba(8,8,10,.2) 30%,rgba(8,8,10,.95));
}
.blueprint{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(150,160,180,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(150,160,180,.07) 1px,transparent 1px),
    linear-gradient(rgba(150,160,180,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(150,160,180,.04) 1px,transparent 1px);
  background-size:180px 180px,180px 180px,36px 36px,36px 36px;
  opacity:.9;
}
.glow{
  position:absolute;right:-6%;top:8%;width:70%;height:85%;
  background:radial-gradient(circle at 55% 45%,rgba(225,27,34,.28),transparent 62%);
  filter:blur(20px);
}
.pipe{position:absolute;border-radius:40px;filter:blur(.3px)}
.pipe-1{
  left:34%;top:-8%;width:74px;height:78%;
  background:linear-gradient(90deg,#2a1113,#8e2229 32%,#c9343c 48%,#5e1a1e 72%,#170a0b);
  box-shadow:0 0 70px rgba(225,27,34,.35);
  transform:rotate(3deg);
}
.pipe-2{
  left:34%;top:60%;width:26%;height:60px;
  background:linear-gradient(180deg,#1c0d0e,#7d1f25 38%,#b93039 55%,#3d1113);
  box-shadow:0 0 60px rgba(225,27,34,.25);
}

.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero-copy{max-width:660px}
.hero h1{
  font-size:clamp(38px,4.7vw,68px);color:#fff;font-weight:700;
  letter-spacing:.005em;margin-bottom:26px;
}
.hero h1 .red{color:var(--red)}
.hero .lead{
  color:#c4c7d0;font-size:16px;line-height:1.8;max-width:470px;margin-bottom:38px;
}

.hero-features{display:flex;gap:0;margin-bottom:42px;flex-wrap:wrap}
.hero-features li{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:0 26px;border-right:1px solid rgba(255,255,255,.14);
  color:#fff;text-align:center;
}
.hero-features li:first-child{padding-left:0}
.hero-features li:last-child{border-right:0}
.hero-features svg{width:30px;height:30px;color:#fff}
.hero-features span{font-size:11.5px;color:#c7cad2;letter-spacing:.02em}

.hero-cta{display:flex;gap:16px;flex-wrap:wrap}

/* Emblem — orijinal logo, kenarları radyal maskeyle zemine karıştırılır */
.hero-emblem{display:flex;justify-content:center;align-items:center}
.emblem{position:relative;animation:floaty 7s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.emblem::before{
  content:"";position:absolute;inset:-14%;
  background:radial-gradient(circle at 50% 46%,rgba(225,27,34,.34),transparent 62%);
  filter:blur(26px);
}
.emblem img{
  position:relative;width:min(380px,34vw);height:auto;
  filter:drop-shadow(0 22px 48px rgba(225,27,34,.3));
}

/* ============================================================
   LOGOS
   ============================================================ */
.logos{background:#0d0d10;border-top:1px solid rgba(255,255,255,.06)}
.logos-inner{display:flex;align-items:center;gap:0;height:118px}
.logos-title{
  flex-shrink:0;padding-right:34px;border-right:1px solid rgba(255,255,255,.12);
}
.logos-title .eyebrow{margin-bottom:8px;font-size:11px}
.logos-title h3{font-size:20px;color:#fff;letter-spacing:.06em;font-weight:600}
.logos-track{
  flex:1;display:flex;align-items:center;gap:52px;overflow-x:auto;
  padding:0 34px;scroll-behavior:smooth;scrollbar-width:none;
}
.logos-track::-webkit-scrollbar{display:none}
.logo-item{
  flex-shrink:0;font-family:var(--head);font-size:24px;letter-spacing:.06em;
  color:#75777f;filter:grayscale(1);transition:.25s;white-space:nowrap;font-weight:600;
}
.logo-item:hover{color:#fff}
.logos-nav{display:flex;gap:8px;flex-shrink:0}
.logos-nav button{
  width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.2);
  color:#fff;transition:.22s;
}
.logos-nav button:hover{background:var(--red);border-color:var(--red)}

/* ============================================================
   STATS
   ============================================================ */
.stats{background:#0d0d10;padding:44px 0 56px}
.stats-inner{display:grid;grid-template-columns:repeat(5,1fr)}
.stat{
  display:flex;align-items:center;gap:18px;padding:12px 26px;
  border-right:1px solid rgba(255,255,255,.1);
}
.stat:last-child{border-right:0}
.stat svg{width:46px;height:46px;color:var(--red);flex-shrink:0}
.stat b{
  display:block;font-family:var(--head);font-size:42px;color:#fff;line-height:1;font-weight:700;
}
.stat span{display:block;font-size:13px;color:#a6a9b3;margin-top:6px}

/* ============================================================
   SECTION HEAD
   ============================================================ */
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:30px;margin-bottom:46px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(28px,3.1vw,42px);color:var(--text);font-weight:700}
.section-head.center{justify-content:center;text-align:center}
.section-head.center h2{margin:0 auto}

/* ============================================================
   SERVICES
   ============================================================ */
.services{background:var(--paper);padding:90px 0 100px}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.service-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(0,0,0,.06);transition:.28s ease;display:flex;flex-direction:column;
}
.service-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:rgba(225,27,34,.3)}
.thumb{height:190px;position:relative;background:#1a1a1f;overflow:hidden}
.thumb::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(160,170,190,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,170,190,.10) 1px,transparent 1px);
  background-size:26px 26px;
}
.thumb::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 50% 45%,rgba(225,27,34,.55),transparent 58%);
  mix-blend-mode:screen;transition:.4s;
}
.service-card:hover .thumb::after{transform:scale(1.15)}
.t1{background:linear-gradient(140deg,#232329,#0f0f12)}
.t2{background:linear-gradient(140deg,#2b2b33,#121216)}
.t3{background:linear-gradient(140deg,#1e1e24,#0c0c0f)}
.t4{background:linear-gradient(140deg,#26262d,#111114)}
.t5{background:linear-gradient(140deg,#1c1c22,#0e0e11)}
.t6{background:linear-gradient(140deg,#2a2a31,#131317)}
.t7{background:linear-gradient(140deg,#202027,#0d0d10)}
.t8{background:linear-gradient(140deg,#25252c,#101013)}
.service-card h3{font-size:20px;padding:22px 22px 0;letter-spacing:.02em}
.service-card p{padding:12px 22px 0;font-size:14px;line-height:1.7;color:var(--muted);flex:1}
.service-card .more{
  display:inline-flex;align-items:center;gap:8px;padding:18px 22px 24px;
  font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--red);
}
.service-card .more i{font-style:normal;transition:.25s}
.service-card:hover .more i{transform:translateX(5px)}

/* ============================================================
   ABOUT
   ============================================================ */
.about{background:#0b0b0d;padding:100px 0;color:#fff}
.about-inner{display:grid;grid-template-columns:1fr 1.05fr;gap:70px;align-items:center}
.about-visual{position:relative}
.about-img{
  height:470px;border-radius:var(--radius);
  background:
    radial-gradient(circle at 60% 35%,rgba(225,27,34,.5),transparent 55%),
    linear-gradient(150deg,#26262e,#0d0d10);
  position:relative;overflow:hidden;
}
.about-img::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(170,180,200,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(170,180,200,.10) 1px,transparent 1px);
  background-size:34px 34px;
}
.about-badge{
  position:absolute;right:-18px;bottom:-18px;background:var(--red);
  padding:24px 28px;border-radius:var(--radius);box-shadow:0 18px 40px rgba(225,27,34,.35);
}
.about-badge b{display:block;font-family:var(--head);font-size:48px;line-height:1}
.about-badge span{display:block;font-size:11px;letter-spacing:.16em;margin-top:6px;line-height:1.6}
.about-copy h2{color:#fff;margin-bottom:20px}
.about-copy > p{color:#b9bcc6;line-height:1.85;font-size:15.5px;margin-bottom:26px}
.check-list li{
  position:relative;padding-left:32px;margin-bottom:14px;color:#d2d5dd;font-size:15px;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:50%;
  background:var(--red);
}
.check-list li::after{
  content:"";position:absolute;left:6px;top:9px;width:6px;height:3px;
  border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg);
}
.about-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects{background:#fff;padding:95px 0}
.proj-filters{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  padding:11px 20px;border:1px solid rgba(0,0,0,.14);border-radius:40px;
  font-size:13px;font-weight:600;color:var(--muted);transition:.22s;
}
.chip:hover{border-color:var(--red);color:var(--red)}
.chip.active{background:var(--red);border-color:var(--red);color:#fff}

.project-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.project-card{
  position:relative;border-radius:var(--radius);overflow:hidden;cursor:pointer;
  min-height:290px;display:flex;align-items:flex-end;
}
.project-card.wide{grid-column:span 2}
.p-img{position:absolute;inset:0;transition:transform .6s ease}
.project-card:hover .p-img{transform:scale(1.07)}
.p-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 30%,rgba(6,6,8,.92));
}
.p1{background:linear-gradient(150deg,#31313a,#0f0f13)}
.p2{background:linear-gradient(150deg,#3a2427,#120c0d)}
.p3{background:linear-gradient(150deg,#26262e,#0c0c10)}
.p4{background:linear-gradient(150deg,#2c3138,#0d0f12)}
.p5{background:linear-gradient(150deg,#382024,#100b0c)}
.p-body{position:relative;padding:26px;color:#fff}
.p-body span{
  display:inline-block;font-size:11px;letter-spacing:.16em;font-weight:700;
  color:var(--red-soft);margin-bottom:10px;
}
.p-body h3{font-size:22px;letter-spacing:.01em}
.project-card.is-hidden{display:none}

/* ============================================================
   PROCESS
   ============================================================ */
.process{background:var(--paper);padding:90px 0 100px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{
  background:#fff;border:1px solid rgba(0,0,0,.06);border-radius:var(--radius);
  padding:34px 28px;position:relative;transition:.28s;
}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.step b{
  font-family:var(--head);font-size:46px;color:rgba(225,27,34,.22);line-height:1;display:block;
  margin-bottom:14px;
}
.step h3{font-size:21px;margin-bottom:10px}
.step p{font-size:14px;line-height:1.75;color:var(--muted)}

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner{
  background:linear-gradient(115deg,#a80f15,#e11b22 55%,#7d0b10);
  padding:64px 0;color:#fff;position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:44px 44px;opacity:.5;
}
.cta-inner{position:relative;display:flex;justify-content:space-between;align-items:center;gap:34px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(26px,3vw,38px);margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.88);font-size:15px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-actions .btn-primary{background:#0b0b0d;box-shadow:none}
.cta-actions .btn-primary:hover{background:#000}

/* ============================================================
   BLOG
   ============================================================ */
.blog{background:#fff;padding:95px 0}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.post{
  border:1px solid rgba(0,0,0,.07);border-radius:var(--radius);overflow:hidden;transition:.28s;
}
.post:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.post-img{height:210px;position:relative}
.post-img::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(170,180,200,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(170,180,200,.10) 1px,transparent 1px);
  background-size:28px 28px;
}
.b1{background:linear-gradient(140deg,#2d2d35,#101014)}
.b2{background:linear-gradient(140deg,#3a2528,#120c0e)}
.b3{background:linear-gradient(140deg,#232a31,#0d1013)}
.post-body{padding:24px}
.post-body .date{font-size:12px;color:var(--red);font-weight:700;letter-spacing:.1em}
.post-body h3{font-size:21px;margin:12px 0 10px;line-height:1.25}
.post-body p{font-size:14px;line-height:1.75;color:var(--muted)}

/* ============================================================
   CONTACT
   ============================================================ */
.contact{background:#0b0b0d;padding:95px 0;color:#fff}
.contact-inner{display:grid;grid-template-columns:1fr 1.1fr;gap:70px}
.contact-info h2{color:#fff;font-size:clamp(28px,3.1vw,42px);margin-bottom:16px}
.contact-info .lead{color:#b9bcc6;line-height:1.8;margin-bottom:36px;max-width:420px}
.contact-list li{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.contact-list svg{width:24px;height:24px;color:var(--red);flex-shrink:0;margin-top:3px}
.contact-list b{display:block;font-size:12px;letter-spacing:.14em;color:#8f929b;margin-bottom:5px}
.contact-list span{font-size:15px;color:#e6e8ed}
/* Henüz girilmemiş bilgiler satırı çökertmesin */
.contact-list span:empty::before{content:"—";color:#5c5f68}

.contact-form{
  background:#131317;border:1px solid var(--line);border-radius:var(--radius);padding:34px;
}
.contact-form .row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.contact-form label{
  display:block;font-size:12px;letter-spacing:.12em;color:#9b9ea8;
  font-weight:600;margin-bottom:18px;
}
.contact-form input[type=text],
.contact-form input[type=tel],
.contact-form input[type=email],
.contact-form select,
.contact-form textarea{
  width:100%;margin-top:9px;padding:15px 16px;border-radius:5px;
  background:#0d0d10;border:1px solid rgba(255,255,255,.12);color:#fff;
  font-family:inherit;font-size:14.5px;letter-spacing:0;transition:.2s;
}
.contact-form textarea{resize:vertical}
.contact-form :is(input,select,textarea):focus{
  outline:0;border-color:var(--red);box-shadow:0 0 0 3px rgba(225,27,34,.15);
}
.contact-form ::placeholder{color:#6a6d76}
.kvkk{display:flex !important;align-items:center;gap:10px;font-size:13px !important;
  letter-spacing:0 !important;text-transform:none;color:#b3b6bf !important;margin-bottom:22px !important}
.kvkk input{accent-color:var(--red);width:17px;height:17px}
.form-note{margin-top:14px;font-size:13.5px;color:#8ee0a1;min-height:20px}
.form-note.err{color:#ff7b80}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{background:#08080a;color:#a7abb6;padding-top:70px;border-top:1px solid rgba(255,255,255,.06)}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px}
.f-brand p{margin:20px 0 22px;font-size:14px;line-height:1.8;max-width:330px}
.socials{display:flex;gap:10px}
.socials a{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:#c7cad2;transition:.22s;
}
.socials a svg{width:17px;height:17px}
.socials a:hover{background:var(--red);border-color:var(--red);color:#fff}
.f-col h5{
  font-size:14px;letter-spacing:.18em;color:#fff;margin-bottom:20px;
  padding-bottom:12px;border-bottom:1px solid var(--line);
}
.f-col li{margin-bottom:12px}
.f-col a{font-size:14px;transition:.2s}
.f-col a:hover{color:var(--red);padding-left:4px}
.cert li{font-size:13.5px;position:relative;padding-left:18px;line-height:1.6}
.cert li::before{content:"";position:absolute;left:0;top:7px;width:6px;height:6px;background:var(--red);border-radius:50%}

.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 28px;border-top:1px solid var(--line);font-size:13px;
}
.footer-bottom a:hover{color:var(--red)}
.footer-bottom span{opacity:.4;margin:0 6px}

/* ---------- To top ---------- */
.to-top{
  position:fixed;left:26px;bottom:26px;z-index:95;width:48px;height:48px;border-radius:50%;
  background:var(--red);color:#fff;font-size:18px;box-shadow:0 10px 26px rgba(225,27,34,.4);
  opacity:0;visibility:hidden;transform:translateY(12px);transition:.28s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--red-dark)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1240px){
  .main-nav{
    position:fixed;inset:86px 0 auto 0;background:#0c0c0f;
    border-bottom:1px solid var(--line);max-height:0;overflow:hidden;transition:max-height .35s ease;
  }
  .main-nav.open{max-height:80vh;overflow-y:auto}
  .main-nav > ul{flex-direction:column;align-items:stretch;padding:10px 20px 24px;gap:0}
  .main-nav a{padding:15px 6px;border-bottom:1px solid rgba(255,255,255,.06);font-size:13.5px}
  .main-nav > ul > li > a.active::after{display:none}
  .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;
    border:0;background:transparent;padding:0 0 8px 14px;display:none}
  .has-sub.open .sub{display:block}
  .burger{display:flex}
  .service-grid{grid-template-columns:repeat(3,1fr)}
  .project-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:1241px){ .burger{display:none} }

@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr}
  .hero-emblem{order:-1;margin-bottom:10px}
  .emblem img{width:min(380px,66vw)}
  .hero{min-height:auto;padding:130px 0 70px}
  .side-rail{display:none}
  .about-inner,.contact-inner{grid-template-columns:1fr;gap:44px}
  .about-img{height:340px}
  .stats-inner{grid-template-columns:repeat(3,1fr);gap:14px}
  .stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.08)}
  .logos-inner{flex-direction:column;height:auto;padding-top:28px;padding-bottom:28px;gap:20px}
  .logos-title{border-right:0;padding-right:0;text-align:center}
  .logos-track{padding:0;width:100%}
  .blog-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:760px){
  .container{padding:0 18px}
  .header-inner{height:74px}
  .brand{width:132px;height:45px}
  .brand-footer{width:168px;height:57px}
  .main-nav{inset:74px 0 auto 0}
  .hero h1{font-size:34px}
  .hero-features{gap:14px}
  .hero-features li{padding:0;border-right:0;width:calc(33.333% - 10px)}
  .hero-cta .btn,.about-actions .btn{flex:1;justify-content:center}
  .service-grid{grid-template-columns:1fr 1fr;gap:16px}
  .project-grid{grid-template-columns:1fr}
  .project-card.wide{grid-column:span 1}
  .steps,.blog-grid{grid-template-columns:1fr}
  .stats-inner{grid-template-columns:1fr 1fr}
  .contact-form{padding:22px}
  .contact-form .row{grid-template-columns:1fr;gap:0}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
  .section-head{margin-bottom:32px}
  .services,.projects,.blog,.about,.contact,.process{padding:64px 0}
  .to-top{left:16px;bottom:16px}
}

@media (max-width:460px){
  .service-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .brand{width:118px;height:40px}
  .stat b{font-size:34px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* ============================================================
   İÇ SAYFALAR
   ============================================================ */
.page-hero{
  position:relative;background:var(--ink);color:#fff;
  padding:150px 0 62px;overflow:hidden;border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(60% 120% at 82% 40%,rgba(225,27,34,.22),transparent 62%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 74px),
    repeating-linear-gradient(0deg,rgba(255,255,255,.045) 0 1px,transparent 1px 74px);
}
.page-hero .container{position:relative}
.page-hero h1{font-size:clamp(32px,4.4vw,54px);margin-top:10px;max-width:20ch}
.page-hero p{margin-top:16px;max-width:64ch;color:var(--muted-dark);font-size:16px;line-height:1.85}

.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--muted-dark)}
.crumb a:hover{color:var(--red-soft)}
.crumb span{opacity:.45}
.crumb b{color:#fff;font-weight:600}

.section{padding:82px 0}
.section.paper{background:var(--paper)}
.section.dark{background:var(--ink);color:#fff}

.prose{max-width:74ch;font-size:16px;line-height:1.9;color:#3a3d47}
.prose.on-dark{color:var(--muted-dark)}
.prose h2{font-size:clamp(24px,3vw,34px);margin:42px 0 16px;color:var(--text)}
.prose.on-dark h2{color:#fff}
.prose h3{font-size:21px;margin:32px 0 12px;color:var(--text)}
.prose.on-dark h3{color:#fff}
.prose p+p{margin-top:16px}
.prose ul{margin:16px 0;display:grid;gap:11px}
.prose ul li{position:relative;padding-left:26px}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.55em;width:9px;height:9px;
  border:2px solid var(--red);border-radius:2px;transform:rotate(45deg);
}
.prose a{color:var(--red);text-decoration:underline;text-underline-offset:3px}

.split{display:grid;grid-template-columns:1.35fr .9fr;gap:56px;align-items:start}
.aside-card{
  background:#fff;border:1px solid rgba(0,0,0,.09);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow);position:sticky;top:104px;
}
.section.dark .aside-card,.section.paper .aside-card{background:#fff}
.aside-card h3{font-size:19px;margin-bottom:8px}
.aside-card p{font-size:14px;line-height:1.75;color:var(--muted);margin-bottom:18px}
.aside-card .btn{width:100%;justify-content:center}
.aside-card ul{margin:0 0 20px;display:grid;gap:9px;font-size:14px;color:#3a3d47}
.aside-card ul li{position:relative;padding-left:22px}
.aside-card ul li::before{
  content:"";position:absolute;left:0;top:6px;width:12px;height:7px;
  border-left:2px solid var(--red);border-bottom:2px solid var(--red);transform:rotate(-45deg);
}

/* Ürün kartları */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product-card{
  background:#fff;border:1px solid rgba(0,0,0,.09);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s ease,box-shadow .25s ease;display:flex;flex-direction:column;
}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.product-card .p-top{height:170px;position:relative;background:var(--ink-3)}
.product-card .p-top::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 50% 45%,rgba(225,27,34,.34),transparent 60%);
}
.product-card .p-top svg{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:60px;height:60px;color:#fff;opacity:.92;z-index:1;
}
.product-card .p-in{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.product-card h3{font-size:20px;margin-bottom:9px}
.product-card p{font-size:14px;line-height:1.75;color:var(--muted);flex:1}
.product-card .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:15px}
.product-card .tags span{
  font-size:11px;letter-spacing:.06em;padding:5px 9px;border-radius:3px;
  background:var(--paper);color:#4a4d58;border:1px solid rgba(0,0,0,.07);
}

/* SSS */
.faq{max-width:860px;display:grid;gap:12px}
.faq details{
  background:#fff;border:1px solid rgba(0,0,0,.1);border-radius:var(--radius);overflow:hidden;
}
.faq summary{
  cursor:pointer;list-style:none;padding:19px 54px 19px 22px;position:relative;
  font-family:var(--head);font-size:19px;letter-spacing:.01em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:23px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--red);border-bottom:2px solid var(--red);
  transform:translateY(-70%) rotate(45deg);transition:transform .25s ease;
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq details[open] summary{background:var(--paper)}
.faq .a{padding:6px 22px 22px;font-size:15px;line-height:1.85;color:#3a3d47}

/* Katalog */
.catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.catalog-card{
  background:#fff;border:1px solid rgba(0,0,0,.09);border-radius:var(--radius);
  padding:26px;display:flex;flex-direction:column;gap:14px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.catalog-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.catalog-card .ic{
  width:46px;height:46px;border-radius:5px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--red),var(--red-dark));color:#fff;
}
.catalog-card .ic svg{width:24px;height:24px}
.catalog-card h3{font-size:19px}
.catalog-card p{font-size:14px;line-height:1.75;color:var(--muted);flex:1}
.catalog-card .meta{font-size:12px;color:var(--muted);letter-spacing:.05em}
.catalog-card .soon{
  font-size:12px;letter-spacing:.08em;color:var(--red);border:1px dashed var(--red);
  border-radius:3px;padding:7px 11px;text-align:center;
}

/* Kariyer */
.job-list{display:grid;gap:16px;max-width:900px}
.job{
  background:#fff;border:1px solid rgba(0,0,0,.09);border-radius:var(--radius);padding:24px 26px;
  display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;
}
.job h3{font-size:20px;margin-bottom:7px}
.job .tags{display:flex;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--muted)}
.job .tags b{
  font-weight:500;background:var(--paper);border:1px solid rgba(0,0,0,.07);
  padding:5px 9px;border-radius:3px;
}

/* Referans ızgarası */
.ref-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:rgba(0,0,0,.09);border:1px solid rgba(0,0,0,.09)}
.ref-grid div{
  background:#fff;aspect-ratio:16/9;display:grid;place-items:center;text-align:center;
  font-family:var(--head);font-size:17px;letter-spacing:.06em;color:#5a5d68;padding:10px;
  transition:color .2s ease,background .2s ease;
}
.ref-grid div:hover{color:var(--red);background:var(--paper)}

/* Boş durum (iletişim) */
.empty-state{
  max-width:620px;margin:0 auto;text-align:center;padding:64px 30px;
  border:1px dashed rgba(0,0,0,.18);border-radius:var(--radius);background:#fff;
}
.empty-state svg{width:52px;height:52px;color:var(--red);margin-bottom:20px}
.empty-state h2{font-size:28px;margin-bottom:12px}
.empty-state p{color:var(--muted);line-height:1.85;margin-bottom:24px}

@media (max-width:1024px){
  .split{grid-template-columns:1fr;gap:38px}
  .aside-card{position:static}
  .product-grid,.catalog-grid{grid-template-columns:1fr 1fr}
  .ref-grid{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:760px){
  .page-hero{padding:118px 0 48px}
  .section{padding:58px 0}
  .product-grid,.catalog-grid{grid-template-columns:1fr}
  .ref-grid{grid-template-columns:repeat(2,1fr)}
  .job{grid-template-columns:1fr}
  .job .btn{width:100%;justify-content:center}
}

/* ============================================================
   ERİŞİLEBİLİRLİK
   ============================================================ */
.skip-link{
  position:absolute;left:12px;top:-60px;z-index:200;
  background:var(--red);color:#fff;padding:12px 20px;border-radius:0 0 var(--radius) var(--radius);
  font-size:13px;font-weight:600;letter-spacing:.06em;transition:top .2s ease;
}
.skip-link:focus{top:0}

:focus-visible{outline:2px solid var(--red-soft);outline-offset:3px;border-radius:2px}
.site-header :focus-visible,.side-rail :focus-visible,.site-footer :focus-visible{
  outline-color:#fff;
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .reveal{opacity:1;transform:none}
}

/* hCaptcha kutusu: koyu form zeminine oturur, dar ekranda taşmaz */
.h-captcha{margin:20px 0 4px;min-height:78px}
.h-captcha iframe{border-radius:4px}
@media (max-width:400px){
  .h-captcha{transform:scale(.86);transform-origin:0 50%}
}

/* Devre dışı aksiyon (ör. alım yokken kariyer başvurusu) */
.btn.is-disabled{
  opacity:.45;cursor:not-allowed;pointer-events:none;
  border-color:var(--muted);color:var(--muted);background:none;box-shadow:none;
}

/* Hukuki metin sayfaları */
.legal{max-width:78ch}
.legal h2{counter-increment:legal;margin-top:44px}
.legal h2::before{content:counter(legal) ". ";color:var(--red)}
.legal{counter-reset:legal}
.legal .updated{
  display:inline-block;font-size:13px;color:var(--muted);
  border:1px solid rgba(0,0,0,.12);border-radius:var(--radius);padding:9px 14px;margin-bottom:8px;
}
.legal table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.legal th,.legal td{border:1px solid rgba(0,0,0,.12);padding:11px 13px;text-align:left;vertical-align:top}
.legal th{background:var(--paper);font-weight:600}
.legal-scroll{overflow-x:auto}

/* KVKK onayındaki metin bağlantısı ayırt edilebilir olmalı */
.kvkk a{color:var(--red-soft);text-decoration:underline;text-underline-offset:3px}
.kvkk a:hover{color:#fff}