/* Logom Bulutta — C2B Bilişim | site-wide stylesheet */
:root{
  --navy:#0A2540;
  --blue:#0B4FCC;
  --blue-light:#2E7BFF;
  --teal:#00A99D;
  --teal-light:#00D2C6;
  --bg:#F5F8FF;
  --surface:#FFFFFF;
  --text:#1F2937;
  --muted:#5B6B82;
  --border:#E3E9F5;
  --radius:14px;
  --shadow:0 10px 30px rgba(10,37,64,0.08);
  --shadow-lg:0 20px 50px rgba(10,37,64,0.14);
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
svg{width:1em;height:1em;vertical-align:-0.125em;flex:none;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;color:var(--navy);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-weight:700;font-size:15.5px;
  cursor:pointer;border:2px solid transparent;transition:.2s ease;white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--blue-light),var(--blue));color:#fff;box-shadow:0 8px 20px rgba(11,79,204,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,79,204,.36);}
.btn-teal{background:linear-gradient(135deg,var(--teal-light),var(--teal));color:#fff;box-shadow:0 8px 20px rgba(0,169,157,.28);}
.btn-teal:hover{transform:translateY(-2px);}
.btn-outline{background:transparent;border-color:var(--border);color:var(--navy);}
.btn-outline:hover{border-color:var(--blue);color:var(--blue);}
.btn-ghost-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);color:#fff;}
.btn-ghost-light:hover{background:rgba(255,255,255,.22);}
.btn-block{width:100%;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 24px;max-width:var(--maxw);margin:0 auto;flex-wrap:nowrap;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy);}
.brand svg{height:40px;width:auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:18px;}
.brand-text b em{font-style:normal;color:var(--blue);}
.brand-text span{font-size:10.5px;color:var(--teal);font-weight:700;letter-spacing:.4px;}

.main-nav{display:flex;align-items:center;flex:1;justify-content:center;}
.nav-list{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0;}
.main-nav a{padding:10px 12px;border-radius:999px;font-weight:600;font-size:14.5px;color:var(--navy);transition:.15s;white-space:nowrap;}
.main-nav a:hover,.main-nav a[aria-current="page"]{background:var(--bg);color:var(--blue);}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;}
.header-phone{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--navy);font-size:14.5px;white-space:nowrap;}
.header-phone svg{width:18px;height:18px;color:var(--teal);flex:none;}
.brand{flex:none;}

.dropdown{position:relative;}
.dropdown>a::after{content:'▾';font-size:11px;margin-left:5px;opacity:.7;}
.dropdown-menu{position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--border);
  border-radius:12px;box-shadow:var(--shadow-lg);min-width:230px;padding:8px;display:none;z-index:10;}
.dropdown:hover .dropdown-menu,.dropdown:focus-within .dropdown-menu{display:block;}
.dropdown-menu a{display:block;padding:10px 12px;border-radius:8px;font-weight:600;font-size:14.5px;}
.dropdown-menu a:hover{background:var(--bg);color:var(--blue);}

.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:6px;}
.nav-toggle span{display:block;width:24px;height:2.5px;background:var(--navy);margin:5px 0;border-radius:2px;transition:.2s;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(1200px 500px at 80% -10%, rgba(46,123,255,.18), transparent),
             linear-gradient(180deg,#0A2540 0%, #0C3268 100%);
  color:#fff;padding:76px 0 90px;
}
.hero .container{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(0,210,198,.14);border:1px solid rgba(0,210,198,.4);color:var(--teal-light);
  padding:7px 14px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.3px;margin-bottom:18px;}
.hero h1{font-size:44px;color:#fff;margin-bottom:18px;}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--teal-light),#7FD8FF);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero p.lead{font-size:18px;color:#C7D3E8;max-width:560px;margin-bottom:28px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px;}
.hero-stats{display:flex;gap:28px;flex-wrap:wrap;}
.hero-stats div{min-width:110px;}
.hero-stats b{display:block;font-size:26px;color:#fff;}
.hero-stats span{font-size:13px;color:#9FB0CC;}
.hero-art{position:relative;}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:26px;backdrop-filter:blur(6px);}
.hero-card ul li{display:flex;align-items:flex-start;gap:10px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.12);font-size:14.5px;color:#E6ECFA;}
.hero-card ul li:last-child{border-bottom:0;}
.hero-card ul li svg{width:18px;height:18px;flex:none;color:var(--teal-light);margin-top:2px;}

/* ---------- Sections ---------- */
section{padding:76px 0;}
.section-head{max-width:680px;margin:0 auto 44px;text-align:center;}
.section-head .eyebrow{background:rgba(11,79,204,.08);border:1px solid rgba(11,79,204,.18);color:var(--blue);}
.section-head h2{font-size:32px;}
.section-head p{color:var(--muted);font-size:16.5px;}
.bg-alt{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}

/* ---------- Cards / grids ---------- */
.grid{display:grid;gap:24px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:.2s;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.card .icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--blue-light),var(--blue));color:#fff;margin-bottom:16px;}
.card .icon svg{width:26px;height:26px;}
.card h3{font-size:19px;}
.card p{color:var(--muted);font-size:15px;margin-bottom:0;}
.card ul{margin-top:12px;}
.card ul li{display:flex;gap:8px;font-size:14.5px;color:var(--text);padding:5px 0;}
.card ul li svg{width:16px;height:16px;color:var(--teal);flex:none;margin-top:3px;}

.erp-badges{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;}
.erp-badge{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);
  padding:14px 22px;border-radius:12px;font-weight:800;font-size:17px;color:var(--navy);box-shadow:var(--shadow);}
.erp-badge span.dot{width:10px;height:10px;border-radius:50%;background:var(--teal);}

.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px;}
.step::before{counter-increment:step;content:counter(step);width:38px;height:38px;border-radius:50%;
  background:linear-gradient(135deg,var(--teal-light),var(--teal));color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;}
.step h3{font-size:17px;}
.step p{color:var(--muted);font-size:14.5px;margin:0;}

.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split img,.split .imgbox{border-radius:18px;box-shadow:var(--shadow-lg);}
.imgbox{background:linear-gradient(135deg,var(--navy),var(--blue));min-height:320px;display:flex;align-items:center;justify-content:center;padding:30px;}

.check-list li{display:flex;gap:10px;padding:8px 0;font-size:15.5px;}
.check-list li svg{width:20px;height:20px;color:var(--teal);flex:none;margin-top:2px;}

.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;}
.metric b{display:block;font-size:34px;color:var(--navy);}
.metric span{color:var(--muted);font-size:14px;}

.quote-cta{background:linear-gradient(135deg,#0A2540,#0B4FCC);color:#fff;border-radius:22px;padding:52px;text-align:center;
  box-shadow:var(--shadow-lg);}
.quote-cta h2{color:#fff;font-size:28px;}
.quote-cta p{color:#C7D3E8;max-width:600px;margin:0 auto 26px;}
.quote-cta .hero-cta{justify-content:center;}

.faq details{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px 20px;margin-bottom:12px;}
.faq summary{cursor:pointer;font-weight:700;color:var(--navy);font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:'+';font-size:22px;color:var(--blue);}
.faq details[open] summary::after{content:'–';}
.faq p{color:var(--muted);margin:10px 0 0;font-size:15px;}

.breadcrumbs{font-size:13.5px;color:var(--muted);margin-bottom:14px;}
.breadcrumbs a{color:var(--blue);font-weight:600;}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;}
.contact-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);}
.contact-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--border);}
.contact-item:last-child{border-bottom:0;}
.contact-item .icon{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--teal-light),var(--teal));
  color:#fff;display:flex;align-items:center;justify-content:center;flex:none;}
.contact-item .icon svg{width:22px;height:22px;}
.contact-item b{display:block;color:var(--navy);font-size:15px;}
.contact-item span,.contact-item a{color:var(--muted);font-size:14.5px;}
.contact-item a:hover{color:var(--blue);}
.map-wrap{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);}
.map-wrap iframe{width:100%;height:340px;border:0;display:block;}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-grid .full{grid-column:1/-1;}
label{display:block;font-weight:700;font-size:14px;color:var(--navy);margin-bottom:6px;}
input,select,textarea{
  width:100%;padding:12px 14px;border-radius:10px;border:1.5px solid var(--border);
  font-family:inherit;font-size:15px;color:var(--text);background:#fff;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);}
textarea{resize:vertical;min-height:110px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy);color:#C7D3E8;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-grid h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-grid p{color:#9FB0CC;font-size:14px;}
.footer-grid ul li{padding:6px 0;}
.footer-grid ul li a{color:#C7D3E8;font-size:14.5px;}
.footer-grid ul li a:hover{color:var(--teal-light);}
.footer-brand svg{height:36px;width:auto;margin-bottom:14px;}
.social-row{display:flex;gap:10px;margin-top:14px;}
.social-row a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;}
.social-row a:hover{background:var(--teal);}
.social-row svg{width:17px;height:17px;color:#fff;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:20px 0;font-size:13px;color:#7E90B0;flex-wrap:wrap;gap:10px;}
.footer-bottom a{color:#9FB0CC;}

/* ---------- WhatsApp float ---------- */
.wa-float{
  position:fixed;bottom:24px;right:24px;z-index:60;background:#25D366;color:#fff;
  width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 26px rgba(37,211,102,.45);
}
.wa-float svg{width:30px;height:30px;}
.wa-float:hover{transform:scale(1.06);}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{background:linear-gradient(180deg,#0A2540,#0C3268);color:#fff;padding:52px 0 60px;}
.page-hero h1{color:#fff;font-size:34px;margin-bottom:10px;}
.page-hero p{color:#C7D3E8;max-width:640px;font-size:16px;margin:0;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero .container{grid-template-columns:1fr;}
  .hero-art{order:-1;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:760px){
  .main-nav{position:fixed;inset:64px 16px auto 16px;background:#fff;border:1px solid var(--border);
    border-radius:16px;box-shadow:var(--shadow-lg);flex-direction:column;align-items:stretch;padding:10px;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.18s;}
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .main-nav a{padding:12px 14px;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;width:100%;}
  .nav-toggle{display:block;}
  .header-phone{display:none;}
  .dropdown-menu{position:static;display:block;box-shadow:none;border:0;padding-left:12px;min-width:0;width:100%;}
  .dropdown>a::after{display:none;}
  .hero{padding:52px 0 64px;}
  .hero h1{font-size:32px;}
  .grid-4,.grid-3,.grid-2,.steps{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .quote-cta{padding:34px 22px;}
  section{padding:56px 0;}
}