/* Melih Su Arıtma Sistemleri — Lightweight, SEO-friendly static theme
   Palette inspired by the provided logo.
*/
:root{
  --brand-blue:#009BD7;
  --brand-blue-2:#019AF1;
  --brand-teal:#009DAD;
  --brand-green:#009F5C;
  --ink:#0b2230;
  --muted:#5b6b75;
  --bg:#ffffff;
  --bg-soft:#f5fbfd;
  --card:#ffffff;
  --border:rgba(11,34,48,.12);
  --shadow:0 10px 30px rgba(11,34,48,.08);
  --radius:16px;
  --radius-sm:12px;
  --max:1120px;
  --font:ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
}

a{color:var(--brand-blue); text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%; height:auto}
small{color:var(--muted)}

.container{max-width:var(--max); margin:0 auto; padding:0 18px}
.section{padding:56px 0}
.section--soft{background:var(--bg-soft)}
.grid{display:grid; gap:18px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
@media (max-width: 900px){
  .grid--3{grid-template-columns:1fr}
  .grid--2{grid-template-columns:1fr}
}

.topbar{
  background:linear-gradient(90deg, rgba(0,155,215,.10), rgba(0,159,92,.10));
  border-bottom:1px solid var(--border);
  font-size:14px;
}
.topbar .container{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:10px 18px;
  flex-wrap:wrap;
}
.badge{
  display:inline-flex; align-items:center; gap:8px;
  padding:6px 10px;
  border:1px solid var(--border);
  border-radius:999px;
  background:#fff;
}

.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 .container{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 18px;
}
.brand{
  display:flex; align-items:center; gap:10px;
  min-width: 220px;
}
.brand img{width:46px; height:46px}
.brand strong{display:block; line-height:1.1}
.brand span{display:block; font-size:13px; color:var(--muted)}

.nav{
  display:flex; align-items:center; gap:16px;
}
.nav a{
  color:var(--ink);
  padding:8px 10px;
  border-radius:10px;
}
.nav a:hover{background:rgba(0,155,215,.08); text-decoration:none}
.nav .cta{
  background:var(--brand-blue);
  color:#fff;
  padding:10px 14px;
  border-radius:999px;
  box-shadow: var(--shadow);
}
.nav .cta:hover{background:var(--brand-blue-2)}
.hamburger{
  display:none;
  width:44px; height:44px;
  border:1px solid var(--border);
  border-radius:12px;
  background:#fff;
}
.hamburger:active{transform:translateY(1px)}
@media (max-width: 900px){
  .brand{min-width:auto}
  .hamburger{display:inline-flex; align-items:center; justify-content:center}
  .nav{
    display:none;
    position:absolute;
    top:68px; left:0; right:0;
    background:#fff;
    border-bottom:1px solid var(--border);
    padding:14px 18px;
    flex-direction:column;
    align-items:flex-start;
  }
  .nav.is-open{display:flex}
  .nav a{width:100%}
}

.hero{
  padding:54px 0 26px;
  background:
    radial-gradient(800px 260px at 20% 20%, rgba(0,155,215,.18), transparent 60%),
    radial-gradient(700px 260px at 80% 10%, rgba(0,159,92,.14), transparent 60%),
    linear-gradient(180deg, rgba(0,155,215,.06), transparent 40%);
}
.hero .container{display:grid; grid-template-columns: 1.25fr .75fr; gap:24px; align-items:center}
@media (max-width: 900px){.hero .container{grid-template-columns:1fr}}
.kicker{
  display:inline-flex; align-items:center; gap:8px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--muted);
  font-size:14px;
}
h1{font-size:40px; line-height:1.15; margin:14px 0 10px}
@media (max-width: 900px){h1{font-size:32px}}
.lead{font-size:18px; color:var(--muted); margin:0 0 18px}
.actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:14px}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:12px 16px;
  border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--ink);
  cursor:pointer;
  font-weight:600;
}
.btn:hover{transform:translateY(-1px); box-shadow:var(--shadow); text-decoration:none}
.btn--primary{
  background:var(--brand-blue);
  color:#fff;
  border-color:rgba(0,0,0,0);
}
.btn--primary:hover{background:var(--brand-blue-2)}
.btn--whatsapp{
  background:var(--brand-green);
  color:#fff;
  border-color:rgba(0,0,0,0);
}
.btn--whatsapp:hover{filter:brightness(1.03)}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px;
  box-shadow: 0 1px 0 rgba(11,34,48,.03);
}
.card h3{margin:0 0 8px}
.card p{margin:0; color:var(--muted)}
.card a{font-weight:600}

.pills{display:flex; flex-wrap:wrap; gap:10px; margin-top:10px}
.pill{
  padding:8px 12px;
  border:1px solid var(--border);
  border-radius:999px;
  background:#fff;
  color:var(--muted);
  font-size:14px;
}

.feature{
  display:flex; gap:12px; align-items:flex-start;
}
.feature .dot{
  width:12px; height:12px; border-radius:999px;
  background:linear-gradient(90deg, var(--brand-blue), var(--brand-green));
  margin-top:7px;
}
.feature strong{display:block}
.feature small{display:block}

.breadcrumbs{
  font-size:14px;
  color:var(--muted);
  padding:16px 0 0;
}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--ink)}

.page-title{padding:22px 0 6px}
.page-title h1{font-size:34px; margin:0}
.page-title p{margin:8px 0 0; color:var(--muted)}

.kv{
  display:grid; grid-template-columns:1fr 1fr; gap:18px;
}
@media (max-width: 900px){.kv{grid-template-columns:1fr}}

.form{
  display:grid; gap:10px;
}
input, textarea, select{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  font-family:var(--font);
  font-size:16px;
}
textarea{min-height:120px; resize:vertical}
label{font-weight:600}
.help{font-size:13px; color:var(--muted)}

.footer{
  border-top:1px solid var(--border);
  background:#fff;
}
.footer .container{
  padding:30px 18px;
  display:grid;
  grid-template-columns: 1.2fr .8fr .8fr;
  gap:18px;
}
@media (max-width: 900px){.footer .container{grid-template-columns:1fr}}
.footer a{color:var(--ink)}
.footer a:hover{color:var(--brand-blue); text-decoration:none}
.footer .sub{color:var(--muted); font-size:14px}
.hr{height:1px; background:var(--border); margin:18px 0}

.mobile-cta{
  position:fixed;
  left:12px; right:12px; bottom:12px;
  z-index:60;
  display:none;
  background:#fff;
  border:1px solid var(--border);
  border-radius:999px;
  box-shadow: var(--shadow);
  padding:8px;
  gap:8px;
}
.mobile-cta a{
  flex:1;
  text-align:center;
  padding:10px 10px;
  border-radius:999px;
  font-weight:700;
  text-decoration:none;
}
.mobile-cta a.call{background:rgba(0,155,215,.12); color:var(--ink)}
.mobile-cta a.wp{background:rgba(0,159,92,.12); color:var(--ink)}
.mobile-cta a.offer{background:var(--brand-blue); color:#fff}
@media (max-width: 900px){.mobile-cta{display:flex}}
/* ====== FORCE BUTTON COLORS (Melih) ====== */

.btn{
  display:inline-block;
  padding:12px 18px;
  border-radius:14px;
  font-weight:700;
  text-decoration:none;
}

.btn-primary{
  background:#0B8BD7 !important;
  color:#ffffff !important;
  border:none !important;
}

.btn-primary:hover{
  background:#0874b3 !important;
}

.btn:not(.btn-primary){
  background:transparent;
  border:2px solid #0B8BD7;
  color:#0B8BD7;
}

.btn:not(.btn-primary):hover{
  background:#0B8BD7;
  color:#ffffff;
}