/* =========================================================
   Mezitli Su Tesisatçısı — Ultra Premium Kurumsal Tema
   Tasarım: Senior UI/UX + CRO + WCAG AA + Core Web Vitals
   ========================================================= */

:root{
  --navy-950:#071c30;
  --navy-900:#0A2540;
  --navy-800:#0F4C75;
  --navy-700:#15628f;
  --cyan-500:#2EC4E0;
  --cyan-400:#6ED9EC;
  --gold-500:#C9A227;
  --gold-400:#E8C766;
  --ink:#152436;
  --ink-soft:#3E5C76;
  --paper:#FFFFFF;
  --paper-soft:#F5F8FA;
  --paper-mute:#EAF1F5;
  --line:#DCE6EC;
  --success:#1EAE5B;
  --whatsapp:#25D366;
  --danger:#D64545;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:26px;
  --shadow-sm:0 2px 10px rgba(10,37,64,.08);
  --shadow-md:0 12px 30px rgba(10,37,64,.12);
  --shadow-lg:0 24px 60px rgba(10,37,64,.18);
  --container:1200px;
  --font-head:"Georgia","Times New Roman",serif;
  --font-body:"Segoe UI",Arial,Helvetica,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--navy-900);line-height:1.2;margin:0 0 .6em;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;}
.container{max-width:var(--container);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;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--navy-900);color:#fff;padding:12px 20px;z-index:2000;border-radius:0 0 8px 0;}
.skip-link:focus{left:0;}

:focus-visible{outline:3px solid var(--gold-500);outline-offset:2px;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;
  color:var(--navy-800);background:var(--paper-mute);border:1px solid var(--line);
  padding:7px 16px;border-radius:100px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold-500);}

.section{padding:88px 0;}
.section--soft{background:var(--paper-soft);}
.section--navy{background:linear-gradient(160deg,var(--navy-950),var(--navy-800));color:#fff;}
.section--navy h2,.section--navy h3{color:#fff;}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center;}
.section-head h2{font-size:clamp(1.7rem,3vw,2.5rem);margin-top:14px;}
.section-head p{color:var(--ink-soft);font-size:1.08rem;}
.section--navy .section-head p{color:#C9D6E4;}

/* ============ HEADER ============ */
.topbar{
  background:var(--navy-950);color:#DCE6EC;font-size:.86rem;
}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:9px;padding-bottom:9px;flex-wrap:wrap;}
.topbar a{display:inline-flex;align-items:center;gap:6px;color:#DCE6EC;}
.topbar a:hover{color:var(--gold-400);}
.topbar__badge{color:var(--gold-400);font-weight:700;letter-spacing:.5px;}

.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:10px;padding-bottom:10px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand img{height:52px;width:auto;}
.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav a{font-weight:600;font-size:.96rem;color:var(--navy-900);position:relative;padding:6px 0;}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--gold-500);transition:width .25s ease;}
.main-nav a:hover::after,.main-nav a:focus-visible::after{width:100%;}
.header-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:none;background:none;border:2px solid var(--navy-900);border-radius:8px;padding:8px 10px;cursor:pointer;}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";display:block;width:22px;height:2px;background:var(--navy-900);position:relative;transition:.25s;}
.nav-toggle span::before{position:absolute;top:-7px;}
.nav-toggle span::after{position:absolute;top:7px;}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:100px;font-weight:700;font-size:.98rem;
  border:2px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn-gold{background:linear-gradient(135deg,var(--gold-400),var(--gold-500));color:var(--navy-950);box-shadow:var(--shadow-sm);}
.btn-gold:hover{box-shadow:var(--shadow-md);}
.btn-outline{background:transparent;border-color:var(--navy-900);color:var(--navy-900);}
.btn-outline:hover{background:var(--navy-900);color:#fff;}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:#fff;color:var(--navy-900);}
.btn-whatsapp{background:var(--whatsapp);color:#fff;box-shadow:var(--shadow-sm);}
.btn-whatsapp:hover{box-shadow:var(--shadow-md);}
.btn-block{width:100%;}
.btn-sm{padding:10px 18px;font-size:.88rem;}

/* ============ HERO ============ */
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(1200px 500px at 85% -10%, rgba(46,196,224,.25), transparent),
             linear-gradient(160deg,var(--navy-950) 10%,var(--navy-800) 100%);
  color:#fff;padding:64px 0 90px;
}
.hero__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.hero__badges{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px;}
.hero__badge{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  padding:7px 14px;border-radius:100px;font-size:.8rem;font-weight:600;letter-spacing:.4px;
}
.hero h1{color:#fff;font-size:clamp(2.1rem,4vw,3.1rem);margin-bottom:.45em;}
.hero__lead{font-size:1.15rem;color:#D6E4EE;max-width:560px;}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}
.hero__trust{display:flex;gap:26px;margin-top:38px;flex-wrap:wrap;}
.hero__trust div{display:flex;flex-direction:column;}
.hero__trust strong{font-family:var(--font-head);font-size:1.7rem;color:var(--gold-400);}
.hero__trust span{font-size:.82rem;color:#B9CADA;}
.hero__panel{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);padding:14px;box-shadow:var(--shadow-lg);
}
.hero__panel img{border-radius:calc(var(--radius-lg) - 8px);width:100%;object-fit:cover;aspect-ratio:4/3;}
.hero__panel-cap{display:flex;justify-content:space-between;align-items:center;padding:14px 6px 4px;font-size:.85rem;color:#CBDBE8;}

/* ============ ANNOUNCEMENT / URGENCY BAR ============ */
.urgency-bar{background:var(--gold-500);color:var(--navy-950);text-align:center;padding:12px 16px;font-weight:700;font-size:.95rem;}
.urgency-bar a{text-decoration:underline;}

/* ============ SERVICES GRID ============ */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.service-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:30px 26px;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease;
  height:100%;
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);}
.service-card__icon{
  width:56px;height:56px;border-radius:14px;background:var(--paper-mute);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.service-card__icon svg{width:28px;height:28px;stroke:var(--navy-800);}
.service-card h3{font-size:1.15rem;margin-bottom:.4em;}
.service-card p{color:var(--ink-soft);font-size:.96rem;margin-bottom:0;}

.service-photo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:50px;}
.service-photo{position:relative;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);aspect-ratio:4/3;}
.service-photo img{width:100%;height:100%;object-fit:cover;}
.service-photo figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px;
  background:linear-gradient(0deg,rgba(7,28,48,.88),transparent);
  color:#fff;font-size:.86rem;font-weight:600;margin:0;
}

/* ============ WHY US ============ */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.why-list{display:flex;flex-direction:column;gap:22px;}
.why-item{display:flex;gap:16px;}
.why-item__num{
  flex:none;width:44px;height:44px;border-radius:12px;background:var(--navy-900);color:var(--gold-400);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-head);font-weight:700;
}
.why-item h4{margin-bottom:.3em;font-size:1.08rem;}
.why-item p{color:var(--ink-soft);margin-bottom:0;font-size:.96rem;}
.why-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);}
.why-media img{aspect-ratio:5/4;object-fit:cover;}

/* ============ STEPS / PROCESS ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{position:relative;padding:34px 22px 26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);}
.step::before{
  counter-increment:step;content:counter(step);
  position:absolute;top:-18px;left:22px;width:36px;height:36px;border-radius:50%;
  background:var(--gold-500);color:var(--navy-950);font-weight:800;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-head);box-shadow:var(--shadow-sm);
}
.step h4{font-size:1.02rem;margin-top:6px;}
.step p{color:var(--ink-soft);font-size:.92rem;margin-bottom:0;}

/* ============ MAHALLE LISTESI ============ */
.mahalle-toolbar{display:flex;gap:12px;margin-bottom:28px;flex-wrap:wrap;align-items:center;justify-content:space-between;}
.mahalle-search{
  flex:1;min-width:240px;padding:13px 18px;border-radius:100px;border:1px solid var(--line);
  font-size:.95rem;background:#fff;
}
.mahalle-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.mahalle-chip{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:14px 16px;font-weight:600;font-size:.92rem;transition:.2s;
}
.mahalle-chip:hover{border-color:var(--gold-500);background:var(--paper-mute);transform:translateY(-2px);}
.mahalle-chip svg{flex:none;width:16px;height:16px;stroke:var(--navy-800);}
.mahalle-empty{grid-column:1/-1;text-align:center;color:var(--ink-soft);padding:30px 0;}

/* ============ TESTIMONIALS ============ */
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.testi-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:28px;box-shadow:var(--shadow-sm);}
.testi-stars{color:var(--gold-500);letter-spacing:2px;margin-bottom:10px;font-size:1rem;}
.testi-card p{color:var(--ink);font-size:.96rem;}
.testi-name{font-weight:700;color:var(--navy-900);font-size:.92rem;}
.testi-loc{color:var(--ink-soft);font-size:.82rem;}

/* ============ FAQ ============ */
.faq{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;text-align:left;background:none;border:0;padding:22px 4px;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;font-weight:700;font-size:1.02rem;color:var(--navy-900);
  font-family:var(--font-head);
}
.faq-q .plus{flex:none;width:26px;height:26px;border-radius:50%;background:var(--paper-mute);position:relative;transition:transform .25s ease;}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--navy-900);top:50%;left:50%;transform:translate(-50%,-50%);}
.faq-q .plus::before{width:12px;height:2px;}
.faq-q .plus::after{width:2px;height:12px;}
.faq-item[open] .plus{transform:rotate(45deg);background:var(--gold-500);}
.faq-item[open] .plus::before,.faq-item[open] .plus::after{background:var(--navy-950);}
.faq-a{padding:0 4px 22px;color:var(--ink-soft);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary{list-style:none;}

/* ============ CTA BANNER ============ */
.cta-banner{
  background:linear-gradient(135deg,var(--navy-900),var(--navy-700));
  border-radius:var(--radius-lg);padding:56px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-lg);
}
.cta-banner h2{color:#fff;font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:.3em;}
.cta-banner p{color:#CBDBE8;margin-bottom:0;}
.cta-banner__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ CONTENT AREA (mahalle sayfaları) ============ */
.content-block{max-width:840px;margin:0 auto;}
.content-block h2{font-size:clamp(1.4rem,2.6vw,1.9rem);margin-top:2.2em;}
.content-block h2:first-of-type{margin-top:0;}
.content-block p{color:var(--ink);font-size:1.03rem;}
.content-block ul{margin:0 0 1.2em;padding-left:1.3em;}
.content-block li{margin-bottom:.4em;color:var(--ink);}
.content-block .lead{font-size:1.12rem;color:var(--ink-soft);}
.inline-cta{
  background:var(--paper-mute);border:1px dashed var(--gold-500);border-radius:var(--radius-md);
  padding:22px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin:2em 0;
}
.inline-cta strong{color:var(--navy-900);font-size:1.05rem;}
.breadcrumb{font-size:.85rem;color:var(--ink-soft);margin-bottom:18px;}
.breadcrumb a{color:var(--navy-800);font-weight:600;}
.breadcrumb span{margin:0 6px;}

.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}

/* ============ FOOTER ============ */
.site-footer{background:var(--navy-950);color:#B9CADA;padding:70px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand img{height:46px;margin-bottom:16px;filter:brightness(0) invert(1);}
.footer-brand p{color:#93A9BC;font-size:.92rem;max-width:280px;}
.footer-col h5{color:#fff;font-family:var(--font-head);font-size:1.02rem;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#B9CADA;font-size:.9rem;}
.footer-col a:hover{color:var(--gold-400);}
.footer-bottom{padding:22px 0;text-align:center;font-size:.82rem;color:#7C93A8;}
.footer-bottom a{color:#B9CADA;text-decoration:underline;}

/* ============ FLOATING WHATSAPP ============ */
.wa-float{
  position:fixed;right:20px;bottom:20px;z-index:1500;background:var(--whatsapp);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;fill:#fff;}
.wa-float:hover{transform:scale(1.06);}

/* ============ RESPONSIVE ============ */
@media (max-width:980px){
  .hero__grid{grid-template-columns:1fr;}
  .why-grid{grid-template-columns:1fr;}
  .services-grid{grid-template-columns:repeat(2,1fr);}
  .service-photo-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .mahalle-grid{grid-template-columns:repeat(2,1fr);}
  .testi-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
}
@media (max-width:760px){
  .main-nav{
    position:fixed;inset:64px 0 0 0;background:#fff;flex-direction:column;padding:30px 24px;
    transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-toggle{display:block;}
  .header-cta .btn-sm-hide{display:none;}
  .services-grid{grid-template-columns:1fr;}
  .service-photo-grid{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .mahalle-grid{grid-template-columns:1fr;}
  .cta-banner{padding:36px 24px;}
  .section{padding:60px 0;}
}