/* Keskin Kuyu | site.css */
:root{
  --ink:#0b0e10; --ink-2:#13181b; --ink-3:#1c2327;
  --concrete:#ecebe6; --concrete-2:#e0ded6; --paper:#f6f5f1;
  --stone:#8b9196; --stone-2:#5d646a;
  --water:#3fb8ff; --water-deep:#0a6fb3;
  --text-d:#f3f2ee; --text-l:#121517;
  --line-d:rgba(255,255,255,.12); --line-l:rgba(18,21,23,.14);
  --r:18px; --r-sm:10px;
  --wrap:1240px; --gut:clamp(16px,4vw,40px);
  --f-sans:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--ink);color:var(--text-d);font-family:var(--f-sans);font-size:17px;line-height:1.6;font-variation-settings:"wdth" 100;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.02;font-weight:800;letter-spacing:-.01em;font-variation-settings:"wdth" 112}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
.hero__grid>*,.split>*,.sec-head>*,.phero__grid>*,.article>*,.faq>*,.cta__in>*{min-width:0}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.mono{font-family:var(--f-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--water);color:var(--ink);padding:8px 14px;z-index:100;border-radius:8px}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--water);outline-offset:3px}

/* sections */
.sec{padding:clamp(72px,10vw,140px) 0;position:relative}
.sec--light{background:var(--concrete);color:var(--text-l)}
.sec--paper{background:var(--paper);color:var(--text-l)}
.sec--ink2{background:var(--ink-2)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-mono);font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:var(--water);margin-bottom:22px}
.sec--light .eyebrow,.sec--paper .eyebrow{color:var(--water-deep)}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor}
.h2{font-size:clamp(2.2rem,5.4vw,4.4rem);max-width:16ch}
.lead{font-size:clamp(1.05rem,1.5vw,1.25rem);color:color-mix(in srgb,currentColor 72%,transparent);max-width:58ch}
.sec-head{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:end;margin-bottom:clamp(40px,6vw,72px)}
.sec-head .lead{margin:0}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:16px 26px;border-radius:999px;font-weight:700;font-size:1rem;text-decoration:none;border:1px solid transparent;transition:transform .25s var(--ease),background .25s,color .25s,border-color .25s;white-space:nowrap}
.btn svg{width:18px;height:18px;flex:none}
.btn:hover{transform:translateY(-2px)}
.btn--water{background:var(--water);color:var(--ink)}
.btn--water:hover{background:#7fd0ff}
.btn--ghost{border-color:var(--line-d);color:var(--text-d)}
.btn--ghost:hover{border-color:var(--text-d)}
.sec--light .btn--ghost,.sec--paper .btn--ghost{border-color:var(--line-l);color:var(--text-l)}
.btn--wa{background:#25d366;color:#05230f}
.btn--wa:hover{background:#4be083}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* header */
.hdr{position:fixed;inset:0 0 auto;z-index:50;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.hdr.is-solid{background:rgba(11,14,16,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--line-d)}
.hdr__in{display:flex;align-items:center;gap:28px;height:78px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex:none}
.brand img{width:52px;height:auto}
.brand b{font-weight:800;font-size:1.05rem;letter-spacing:.02em;font-variation-settings:"wdth" 118;line-height:1}
.brand small{display:block;font-family:var(--f-mono);font-size:.62rem;letter-spacing:.16em;color:var(--stone);margin-top:4px;text-transform:uppercase}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{text-decoration:none;padding:9px 14px;border-radius:999px;font-size:.95rem;font-weight:500;color:color-mix(in srgb,var(--text-d) 78%,transparent);transition:color .2s,background .2s}
.nav a:hover,.nav a[aria-current=page]{color:var(--text-d);background:rgba(255,255,255,.07)}
.hdr__tel{padding:11px 18px;font-size:.92rem}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line-d);color:var(--text-d);width:46px;height:46px;border-radius:50%;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:currentColor;margin:4px auto;transition:transform .3s}
.mnav{position:fixed;inset:78px 0 0;background:var(--ink);z-index:49;padding:24px var(--gut) 120px;display:none;flex-direction:column;overflow:auto}
.mnav.is-open{display:flex}
.mnav a{font-size:1.9rem;font-weight:800;font-variation-settings:"wdth" 112;text-decoration:none;padding:12px 0;border-bottom:1px solid var(--line-d)}
.mnav .mono{color:var(--stone);margin-top:28px}

/* depth gauge */
.gauge{position:fixed;left:18px;top:50%;transform:translateY(-50%);z-index:40;display:flex;flex-direction:column;align-items:center;gap:10px;pointer-events:none;mix-blend-mode:difference;color:#fff}
.gauge__bar{width:1px;height:180px;background:rgba(255,255,255,.3);position:relative}
.gauge__fill{position:absolute;left:-1px;top:0;width:3px;height:0;background:#fff}
.gauge__val{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.06em;writing-mode:vertical-rl;transform:rotate(180deg)}

/* hero */
.hero{min-height:100svh;display:flex;align-items:center;padding:120px 0 80px;position:relative;overflow:hidden}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(30px,5vw,80px);align-items:center}
.hero h1{font-size:clamp(2.9rem,8.2vw,7.4rem);line-height:.92;font-variation-settings:"wdth" 118;letter-spacing:-.02em;margin-bottom:28px}
.hero h1 em{font-style:normal;color:var(--water)}
.hero .lead{margin-bottom:36px}
.hero__facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:48px;padding-top:28px;border-top:1px solid var(--line-d)}
.hero__facts div{min-width:110px}
.hero__facts b{display:block;font-size:2rem;font-weight:800;font-variation-settings:"wdth" 118;line-height:1}
.hero__facts span{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--stone)}
.well{position:relative;aspect-ratio:1;width:100%;max-width:560px;margin-left:auto}
.well__img{position:absolute;inset:9%;border-radius:50%;overflow:hidden;box-shadow:0 0 0 1px var(--line-d),0 40px 120px -20px rgba(63,184,255,.35)}
.well__img img{width:100%;height:100%;object-fit:cover;transform:scale(1.15)}
.well__ring{position:absolute;inset:0;border-radius:50%;border:1px solid var(--line-d)}
.well__ring:nth-child(2){inset:4%;border-style:dashed;animation:spin 60s linear infinite}
.well__ring:nth-child(3){inset:-4%;opacity:.5}
.well__tag{position:absolute;font-family:var(--f-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;background:var(--ink);border:1px solid var(--line-d);padding:7px 12px;border-radius:999px;white-space:nowrap}
.well__tag--a{top:8%;left:-2%}
.well__tag--b{bottom:10%;right:-2%;color:var(--water)}
@keyframes spin{to{transform:rotate(360deg)}}

/* symptoms */
.sym{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-l);border:1px solid var(--line-l);border-radius:var(--r);overflow:hidden}
.sym a{background:var(--concrete);padding:28px 26px;text-decoration:none;display:flex;flex-direction:column;gap:14px;min-height:170px;transition:background .25s}
.sym a:hover{background:var(--paper)}
.sym .mono{color:var(--stone-2)}
.sym b{font-size:1.35rem;font-weight:700;line-height:1.15;font-variation-settings:"wdth" 108}
.sym small{margin-top:auto;font-size:.88rem;color:var(--water-deep);font-weight:600;display:flex;gap:6px;align-items:center}
.sym small svg{width:16px;height:16px;flex:none;transition:transform .25s}
.sym a:hover small svg{transform:translateX(4px)}

/* service cards */
.svc{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.card{grid-column:span 4;position:relative;border-radius:var(--r);overflow:hidden;background:var(--ink-3);text-decoration:none;color:var(--text-d);display:flex;flex-direction:column;min-height:460px;isolation:isolate}
.card--wide{grid-column:span 8}
.card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .8s var(--ease)}
.card::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(11,14,16,0) 30%,rgba(11,14,16,.92) 88%)}
.card:hover img{transform:scale(1.05)}
.card__no{position:absolute;top:20px;left:22px;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;background:rgba(11,14,16,.6);backdrop-filter:blur(6px);padding:6px 10px;border-radius:999px}
.card__body{margin-top:auto;padding:26px}
.card h3{font-size:clamp(1.5rem,2.3vw,2rem);margin-bottom:10px}
.card p{font-size:.95rem;color:rgba(243,242,238,.78);margin:0 0 16px;max-width:46ch}
.card__go{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.92rem;color:var(--water)}
.card__go svg{width:16px;height:16px;transition:transform .25s}
.card:hover .card__go svg{transform:translateX(4px)}

/* split / drainage */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,90px);align-items:center}
.checks{list-style:none;display:grid;gap:12px;margin:28px 0 36px}
.checks li{display:flex;gap:14px;align-items:flex-start;padding:16px 18px;border:1px solid var(--line-d);border-radius:var(--r-sm)}
.sec--light .checks li,.sec--paper .checks li{border-color:var(--line-l)}
.checks li::before{content:"";flex:none;width:10px;height:10px;margin-top:8px;border-radius:50%;background:var(--water);box-shadow:0 0 0 4px rgba(63,184,255,.18)}
.diagram{margin:0;background:var(--ink-3);border:1px solid var(--line-d);border-radius:var(--r);padding:clamp(14px,2vw,24px)}
.diagram svg{width:100%;height:auto;display:block}
.diagram figcaption{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;color:var(--stone);margin-top:12px}
.flow-dash{stroke-dasharray:6 8;animation:flow 1.4s linear infinite}
@keyframes flow{to{stroke-dashoffset:-28}}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-d);border-bottom:1px solid var(--line-d)}
.stats div{padding:40px 24px;border-right:1px solid var(--line-d)}
.stats div:last-child{border-right:0}
.stats b{display:block;font-size:clamp(2.6rem,5.5vw,4.6rem);font-weight:800;line-height:1;font-variation-settings:"wdth" 120;letter-spacing:-.02em}
.stats b sup{font-size:.45em;color:var(--water);vertical-align:top;margin-left:2px}
.stats span{display:block;margin-top:10px;font-family:var(--f-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--stone)}

/* gallery */
.gal{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:220px;gap:14px;grid-auto-flow:dense}
.gal figure{margin:0;border-radius:var(--r-sm);overflow:hidden;position:relative;background:var(--ink-3)}
.gal figure:nth-child(7n+1),.gal figure:nth-child(7n+4){grid-row:span 2}
.gal figure:nth-child(7n+6){grid-column:span 2}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.gal figure:hover img{transform:scale(1.04)}
.gal figcaption{position:absolute;left:10px;bottom:10px;font-family:var(--f-mono);font-size:.68rem;letter-spacing:.06em;background:rgba(11,14,16,.7);backdrop-filter:blur(6px);padding:5px 9px;border-radius:6px}

/* quotes */
.quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.quote{background:var(--paper);border:1px solid var(--line-l);border-radius:var(--r);padding:clamp(24px,3vw,40px);margin:0;display:flex;flex-direction:column;gap:22px}
.quote p{font-size:clamp(1.05rem,1.4vw,1.2rem);line-height:1.5;margin:0}
.quote footer{margin-top:auto;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--stone-2)}
.quote svg{width:34px;height:34px;color:var(--water-deep)}

/* faq */
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(30px,6vw,90px);align-items:start}
.faq__list details{border-top:1px solid var(--line-l)}
.faq__list details:last-child{border-bottom:1px solid var(--line-l)}
.faq__list summary{list-style:none;cursor:pointer;padding:24px 50px 24px 0;font-size:clamp(1.1rem,1.6vw,1.3rem);font-weight:700;position:relative;font-variation-settings:"wdth" 106}
.faq__list summary::-webkit-details-marker{display:none}
.faq__list summary::after{content:"";position:absolute;right:6px;top:50%;width:14px;height:14px;margin-top:-10px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);transition:transform .3s}
.faq__list details[open] summary::after{transform:rotate(-135deg);margin-top:-2px}
.faq__list details > div{padding:0 0 26px;color:color-mix(in srgb,currentColor 76%,transparent);max-width:68ch}
.sec--ink2 .faq__list details,.sec:not(.sec--light):not(.sec--paper) .faq__list details{border-color:var(--line-d)}

/* cta band */
.cta{position:relative;overflow:hidden;background:radial-gradient(120% 140% at 85% 10%,#1477b8 0%,#0a3f66 38%,var(--ink) 78%)}
.cta__in{display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:end}
.cta h2{font-size:clamp(2.4rem,6.4vw,5.6rem);font-variation-settings:"wdth" 120;line-height:.95}
.cta__tel{display:block;font-size:clamp(1.6rem,3.4vw,2.6rem);font-weight:800;text-decoration:none;font-variation-settings:"wdth" 116;margin:6px 0 22px;letter-spacing:-.01em}

/* footer */
.ftr{padding:72px 0 120px;border-top:1px solid var(--line-d);background:var(--ink)}
.ftr__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.ftr h3{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--stone);font-weight:500;margin-bottom:18px}
.ftr ul{list-style:none;display:grid;gap:10px}
.ftr a{text-decoration:none;color:color-mix(in srgb,var(--text-d) 82%,transparent)}
.ftr a:hover{color:var(--water)}
.ftr__brand img{width:96px;margin-bottom:18px}
.ftr__brand p{color:var(--stone);max-width:34ch;font-size:.95rem}
.ftr__bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:56px;padding-top:24px;border-top:1px solid var(--line-d);color:var(--stone);font-size:.85rem}

/* sticky mobile action bar */
.abar{display:none;position:fixed;left:12px;right:12px;bottom:12px;z-index:60;gap:8px;padding:8px;background:rgba(19,24,27,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--line-d);border-radius:999px}
.abar a{flex:1;justify-content:center;padding:14px 10px}

/* page hero (inner) */
.phero{padding:150px 0 70px;border-bottom:1px solid var(--line-d)}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;list-style:none;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--stone);margin-bottom:28px}
.crumbs li+li::before{content:"/";margin-right:8px;opacity:.5}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--water)}
.phero h1{font-size:clamp(2.6rem,7vw,6rem);font-variation-settings:"wdth" 118;line-height:.95;max-width:16ch;margin-bottom:26px}
.phero__grid{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(30px,5vw,70px);align-items:end}
.phero__img{border-radius:var(--r);overflow:hidden;aspect-ratio:4/5;max-height:520px}
.phero__img img{width:100%;height:100%;object-fit:cover}

/* article */
.article{display:grid;grid-template-columns:1fr 340px;gap:clamp(30px,6vw,90px);align-items:start}
.prose{font-size:1.08rem;max-width:70ch}
.prose h2{font-size:clamp(1.7rem,3vw,2.4rem);margin:56px 0 18px}
.prose h2:first-child{margin-top:0}
.prose .def{font-size:clamp(1.2rem,2vw,1.45rem);line-height:1.45;padding-left:22px;border-left:3px solid var(--water-deep);margin-bottom:32px;font-weight:500}
.side{position:sticky;top:100px;display:grid;gap:14px}
.side__box{background:var(--ink);color:var(--text-d);border-radius:var(--r);padding:26px}
.side__box h3{font-size:1.4rem;margin-bottom:10px}
.side__box p{color:var(--stone);font-size:.95rem}
.side__box .btn{width:100%;justify-content:center;margin-top:8px}
.side__links{border:1px solid var(--line-l);border-radius:var(--r);padding:22px}
.side__links h3{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;font-weight:500;color:var(--stone-2);margin-bottom:12px}
.side__links ul{list-style:none}
.side__links a{display:block;padding:9px 0;text-decoration:none;border-bottom:1px solid var(--line-l);font-weight:600}
.side__links li:last-child a{border:0}
.side__links a:hover{color:var(--water-deep)}

/* contact */
.cgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.cbox{border:1px solid var(--line-d);border-radius:var(--r);padding:26px;text-decoration:none;display:flex;flex-direction:column;gap:10px;min-height:170px;transition:border-color .25s,background .25s}
a.cbox:hover{border-color:var(--water);background:rgba(63,184,255,.05)}
.cbox .mono{color:var(--stone)}
.cbox b{font-size:1.25rem;font-weight:700;margin-top:auto;word-break:break-word}
.form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form label{display:grid;gap:8px;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--stone-2)}
.form .full{grid-column:1/-1}
.form input,.form select,.form textarea{font:inherit;font-family:var(--f-sans);font-size:1rem;letter-spacing:0;text-transform:none;color:var(--text-l);background:var(--paper);border:1px solid var(--line-l);border-radius:var(--r-sm);padding:14px 16px;width:100%}
.form textarea{min-height:120px;resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--water-deep);outline-offset:0;border-color:transparent}

/* reveal */
.rv{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .well__ring,.flow-dash{animation:none}
}

/* responsive */
@media (max-width:1100px){
  .nav{display:none}
  .burger{display:block}
  .hdr__tel{display:none}
  .gauge{display:none}
  .ftr__grid{grid-template-columns:1fr 1fr}
  .cgrid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .hero__grid,.split,.faq,.cta__in,.sec-head,.phero__grid,.article{grid-template-columns:1fr}
  .well{max-width:420px;margin:0 auto}
  .hero{padding-top:110px}
  .card,.card--wide{grid-column:span 12;min-height:380px}
  .sym{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stats div:nth-child(2){border-right:0}
  .stats div:nth-child(-n+2){border-bottom:1px solid var(--line-d)}
  .gal{grid-template-columns:1fr 1fr;grid-auto-rows:180px}
  .gal figure:nth-child(7n+6){grid-column:span 1}
  .quotes{grid-template-columns:1fr}
  .side{position:static}
  .phero__img{max-height:420px;aspect-ratio:16/11}
  .abar{display:flex}
}
@media (max-width:560px){
  body{font-size:16px}
  .sym{grid-template-columns:1fr}
  .sym a{min-height:0}
  .ftr__grid,.cgrid,.form{grid-template-columns:1fr}
  .hero__facts{gap:20px}
  .brand small{display:none}
  .btn{padding:15px 20px}
  .well__tag--a{left:0}.well__tag--b{right:0}
}
.h1-kicker{display:block;font-family:var(--f-mono);font-size:.78rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--water);line-height:1.4;margin-bottom:22px;font-variation-settings:normal}