/* Trabzon Su Tesisatçı — statik site stilleri (Neve "Oxford" paletinden) */
:root{
  --primary:#000cff;
  --secondary:#012950;
  --site-bg:#ffffff;
  --light-bg:#efefef;
  --dark-bg:#012346;
  --text:#101139;
  --text-on-dark:#ffffff;
  --hero-box:#2821ae;
  --hero-label:#1f1d7e;
  --container:1100px;
  --font-head:"Playfair Display",Georgia,"Times New Roman",serif;
  --font-body:"Roboto",Arial,Helvetica,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--site-bg);color:var(--text);font-family:var(--font-body);font-size:15px;line-height:1.7}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary)}
a:hover{color:var(--secondary)}
h1,h2,h3,h4,h5{font-family:var(--font-head);font-weight:900;line-height:1.2;margin:0 0 .6em;color:inherit}
h1{font-size:60px}
h2{font-size:40px}
h3{font-size:28px}
h4{font-size:22px;font-weight:700}
h5{font-size:16px}
p{margin:0 0 1.1em}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:10px;top:10px;background:#fff;padding:8px 12px;z-index:1000}

/* ---------- Header ---------- */
.site-header{background:var(--site-bg);border-bottom:1px solid #e6e6e6;position:sticky;top:0;z-index:50}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:62px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-family:var(--font-body);font-weight:700;font-size:20px}
.brand img{width:22px;height:auto}
.brand:hover{color:var(--text)}
.main-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:26px}
.main-nav a{font-family:var(--font-head);font-weight:700;font-size:15px;text-decoration:none;color:var(--text)}
.main-nav a:hover,.main-nav a[aria-current="page"]{color:var(--primary)}
.nav-toggle{display:none;background:none;border:1px solid var(--text);border-radius:3px;padding:7px 9px;cursor:pointer;color:var(--text)}
.nav-toggle svg{display:block}

/* ---------- Buttons ---------- */
.btn{display:inline-block;padding:14px 26px;font-family:var(--font-body);font-weight:700;font-size:14px;text-decoration:none;color:#fff;background:var(--dark-bg);border:0;border-radius:0;transition:background .2s}
.btn:hover{background:var(--secondary);color:#fff}
.btn-gradient{background:linear-gradient(135deg,rgb(6,147,227) 28%,rgb(155,81,224) 100%)}
.btn-gradient:hover{background:var(--secondary)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:100px 20px;background-size:cover;background-repeat:no-repeat;background-position:84% 64%}
.hero::before{content:"";position:absolute;inset:0;background:var(--dark-bg);opacity:.2}
.hero-box{position:relative;max-width:750px;margin:0 auto;padding:90px;background:var(--hero-box);color:#fff;text-align:center}
.hero-label{display:block;background:var(--hero-label);color:#fff;font-family:var(--font-body);font-weight:700;font-size:15px;margin:0 0 18px;padding:2px 8px}
.hero-box h1{font-size:43px;color:#fff;margin-bottom:.5em}
.hero-box p{font-size:18px;margin:0;text-align:left}

/* ---------- Page heading band (inner pages) ---------- */
.page-band{background:var(--dark-bg);color:var(--text-on-dark);text-align:center;padding:90px 20px}
.page-band h1{margin:0;color:#fff}
.page-band .overline{font-weight:700;margin:0 0 10px;letter-spacing:.04em}
.page-band .big{font-size:36px;font-weight:700;margin:14px 0 0}

/* ---------- Sections ---------- */
.section{padding:80px 0}
.bg-light{background:var(--light-bg)}
.section-title{text-align:center;margin:0;padding:20px 0 24px}

/* ---------- Services grid ---------- */
.services{padding:0 0 80px}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-card{background:var(--site-bg);padding:20px;text-align:center;display:flex;flex-direction:column;align-items:center}
.service-card h2,.service-card h3,.service-card h4{font-family:var(--font-head);font-size:22px;font-weight:700;margin:10px 0 12px}
.service-card p{margin:0 0 14px}
.service-card img{margin:0 auto 14px}
.service-card a img{transition:opacity .2s}
.service-card a:hover img{opacity:.85}
.service-icon{width:51px;height:51px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;margin:0 auto 4px}

/* ---------- Video & poster ---------- */
.video-wrap{max-width:var(--container);margin:0 auto 25px;padding:0 20px}
.video-ratio{position:relative;padding-top:56.25%}
.video-ratio iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.poster{padding:0 20px 25px}
.poster img{width:975px;max-width:100%;margin:0 auto}

/* ---------- Two column (Su Tesisatçı) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;max-width:700px;margin:0 auto;padding:90px 20px 80px}
.split h2{font-size:36px}
.split .framed{border:9px solid var(--dark-bg);width:310px;max-width:100%}
.split-wide{max-width:var(--container)}
.split-wide img{width:100%}

/* ---------- Posts list (homepage) ---------- */
.posts-list{display:flex;flex-direction:column;gap:24px}
.post-row{display:grid;grid-template-columns:300px 1fr;gap:20px;align-items:start}
.post-row .thumb{display:block;aspect-ratio:300/200;overflow:hidden;background:#dcdcdc}
.post-row .thumb img{width:100%;height:100%;object-fit:cover}
.post-row h3{font-size:22px;font-weight:700;margin:0 0 4px}
.post-row h3 a{color:var(--text);text-decoration:none}
.post-row h3 a:hover{color:var(--primary)}
.post-meta{font-size:13px;color:#555;margin:0 0 10px}

/* ---------- CTA ---------- */
.cta{position:relative;padding:80px 20px;background-size:cover;background-repeat:no-repeat;background-position:92% 2%}
.cta::before{content:"";position:absolute;inset:0;background:var(--dark-bg);opacity:.73}
.cta-box{position:relative;max-width:800px;margin:0 auto;padding:80px;text-align:center;color:#fff;background:linear-gradient(90deg,rgb(91,134,229) 0%,rgb(54,209,220) 97%)}
.cta-box h2{color:#fff;margin:0 0 .3em}
.cta-box .btn{margin-top:20px}

/* ---------- Blog grid ---------- */
.blog-intro{max-width:800px;margin:0 auto 40px;text-align:center}
.blog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:40px 30px}
.card{display:flex;flex-direction:column}
.card .thumb{display:block;aspect-ratio:930/620;overflow:hidden;background:#dcdcdc;margin-bottom:16px}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.card .thumb:hover img{transform:scale(1.03)}
.card h2{font-size:24px;font-weight:700;margin:0 0 6px}
.card h2 a{color:var(--text);text-decoration:none}
.card h2 a:hover{color:var(--primary)}
.read-more{font-weight:700;text-decoration:none}

/* ---------- Single post ---------- */
.entry{max-width:770px;margin:0 auto;padding:60px 20px 80px}
.entry-header h1{font-size:44px;margin-bottom:.3em}
.entry-featured{margin:24px 0 30px}
.entry-featured img{width:auto;max-width:100%;max-height:520px;margin:0 auto}
.entry-content h2{font-size:30px;margin-top:1.4em}
.entry-content h3{font-size:24px;margin-top:1.3em}
.entry-content ul{padding-left:1.3em;margin:0 0 1.2em}
.entry-content li{margin-bottom:.35em}
.entry-content img{margin:10px 0 20px}
.entry-cta{margin-top:40px;padding:28px;background:var(--light-bg);text-align:center}
.entry-cta p{margin:0 0 14px;font-weight:700}
.post-nav{display:flex;justify-content:space-between;gap:20px;margin-top:40px;padding-top:24px;border-top:1px solid #e3e3e3;font-size:14px}
.post-nav a{text-decoration:none;max-width:48%}

/* ---------- Contact ---------- */
.contact-phone{color:#fff;text-decoration:none}
.contact-phone:hover{color:#fff;text-decoration:underline}
.split-wide hr{border:0;height:2px;background:#e8e8e8;margin:0 0 20px}
.split-wide h5{font-size:36px;margin:6px 0 10px}
.split-wide h5 a{color:var(--text);text-decoration:none}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark-bg);color:#fff;padding:22px 0}
.site-footer ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 30px}
.site-footer a{color:#fff;text-decoration:none;text-transform:uppercase;font-family:var(--font-head);font-weight:700;font-size:14px}
.site-footer a:hover{color:#9fb6ff}
.site-footer .copy{text-align:center;font-size:13px;opacity:.75;margin:12px 0 0}

/* ---------- Floating call buttons ---------- */
.float-actions{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:10px;z-index:60}
.float-actions a{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 4px 14px rgba(0,0,0,.25)}
.float-actions .call{background:var(--primary)}
.float-actions .wa{background:#25d366}
.float-actions a:hover{color:#fff;transform:translateY(-2px)}

/* ---------- 404 ---------- */
.notfound{text-align:center;padding:120px 20px}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  h1{font-size:45px} h2{font-size:30px}
  .hero-box{padding:50px}
}
@media (max-width:768px){
  h1{font-size:30px} h2{font-size:25px} h3{font-size:20px} h4{font-size:16px}
  .nav-toggle{display:block}
  .main-nav{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid #e6e6e6;display:none}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:0;padding:8px 16px 16px}
  .main-nav li a{display:block;padding:10px 0}
  .container{padding:0 16px}
  .hero{padding:60px 16px}
  .hero-box{padding:20px}
  .hero-box h1{font-size:32px}
  .services-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;padding:60px 16px;gap:24px}
  .split .framed{margin:0 auto}
  .post-row{grid-template-columns:1fr}
  .cta{padding:60px 16px}
  .cta-box{padding:40px 20px}
  .blog-grid{grid-template-columns:1fr}
  .page-band{padding:60px 16px}
  .page-band .big{font-size:26px}
  .entry{padding:40px 16px 60px}
  .entry-header h1{font-size:30px}
  .entry-content h2{font-size:24px}
  .split-wide h5{font-size:28px}
}