/* Su Tüp Sistemleri — kurumsal vitrin (ana sayfa ve çözüm sayfaları)
   Düzen: beyaz zemin, lacivert yazı, su mavisi vurgu, tüp turuncusu ikincil; bölümler beyaz / açık mavi-gri sırayla. */
:root{--v-ink:#0B1F2C;--v-text:#3E5160;--v-muted:#6B7C88;--v-line:#E4ECF1;--v-soft:#F5F9FB;--v-tint:#E8F3F9;--v-accent:#0A6C97;--v-accent-2:#0B5E83;--v-flame:#D0611F}
body{background:#fff;color:var(--v-text)}
h1,h2,h3{color:var(--v-ink)}
p,dd,.help,code{overflow-wrap:anywhere}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:100}.skip:focus{left:12px;top:8px}
/* üst bilgi şeridi */
.topbar{background:var(--v-ink);color:#C9D7E1;font-size:13px}
.topbar .wrap{display:flex;gap:18px;align-items:center;min-height:36px;flex-wrap:wrap;padding-block:4px}
.topbar a{color:#E6EEF3;text-decoration:none}.topbar a:hover{text-decoration:underline}
.topbar .sp{margin-left:auto}
/* başlık */
header.top{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--v-line)}
header.top .wrap{display:flex;align-items:center;gap:22px;height:68px}
header.top .brand{color:var(--v-ink)}
.mainnav{display:flex;gap:4px;margin-left:auto;align-items:center}
.mainnav>a,.mainnav .dd>button{all:unset;cursor:pointer;color:#3E5160;font-weight:500;font-size:14.5px;padding:8px 11px;border-radius:8px}
.mainnav>a:hover,.mainnav .dd>button:hover,.mainnav .dd:focus-within>button{color:var(--v-ink);background:var(--v-soft)}
.mainnav>a:focus-visible,.mainnav .dd>button:focus-visible{outline:2px solid var(--v-accent)}
.mainnav .dd{position:relative}
.mainnav .dd>button::after{content:"";display:inline-block;width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-3px);margin-left:8px}
.mainnav .menu{position:absolute;top:calc(100% + 6px);left:-8px;min-width:290px;background:#fff;border:1px solid var(--v-line);border-radius:14px;box-shadow:0 24px 50px -24px rgba(15,52,74,.4);padding:8px;display:none;flex-direction:column}
.mainnav .dd:hover .menu,.mainnav .dd:focus-within .menu{display:flex}
.mainnav .menu a{display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--v-ink);font-weight:600;font-size:14.5px}
.mainnav .menu a span{font-weight:400;font-size:13px;color:var(--v-muted)}
.mainnav .menu a:hover{background:var(--v-soft)}
.hdr-cta{display:flex;gap:8px;align-items:center;margin-left:8px}
.hdr-cta .login{color:var(--v-ink);font-weight:600;font-size:14.5px;text-decoration:none;padding:8px 12px}
.hdr-cta .btn{padding:9px 16px;font-size:14px}
.mnav{display:none}
@media (max-width:980px){
  .mainnav{display:none}
  .hdr-cta .login{border:1px solid #D5E0E7;border-radius:9px;padding:8px 14px;font-size:14px;background:#fff}
  .mnav{display:block;margin-left:auto}
  .mnav summary{list-style:none;cursor:pointer;width:42px;height:42px;border:1px solid var(--v-line);border-radius:10px;display:grid;place-items:center}
  .mnav summary::-webkit-details-marker{display:none}
  .mnav summary span,.mnav summary span::before,.mnav summary span::after{display:block;width:18px;height:2px;background:var(--v-ink);border-radius:2px;position:relative;content:""}
  .mnav summary span::before{position:absolute;top:-6px}.mnav summary span::after{position:absolute;top:6px}
  .mnav[open] .panel{display:flex}
  .mnav .panel{display:none;position:absolute;left:0;right:0;top:68px;background:#fff;border-bottom:1px solid var(--v-line);box-shadow:0 24px 40px -24px rgba(15,52,74,.35);flex-direction:column;padding:8px max(16px,env(safe-area-inset-right,0px)) 16px max(16px,env(safe-area-inset-left,0px))}
  .mnav .panel a{padding:12px 4px;border-bottom:1px solid var(--v-line);color:var(--v-ink);text-decoration:none;font-weight:600}
  .mnav .panel a.sub{padding-left:16px;font-weight:500;color:var(--v-text)}
  .mnav .panel .btn{margin-top:12px;justify-content:center}
  .mnav .panel a.btn{color:#fff;border-bottom:0}
  .mnav .panel .lbl{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--v-muted);padding:12px 4px 2px}
  .hdr-cta{margin-left:0}
}
@media (max-width:560px){.hdr-cta .btn{display:none}header.top .wrap{gap:12px}}
@media (max-width:380px){header.top .brand b{display:none}}
/* kahraman */
.hero{background:radial-gradient(900px 480px at 88% -8%,#DCEFF8 0%,rgba(220,239,248,0) 62%),radial-gradient(700px 380px at -10% 110%,#FDEFE4 0%,rgba(253,239,228,0) 60%),#fff;padding-block:60px 72px;overflow:hidden;border-bottom:1px solid #EEF3F6}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:56px;align-items:center}
.eyebrow{display:inline-flex;gap:8px;align-items:center;font-size:13px;font-weight:600;color:var(--v-accent);background:var(--v-tint);border:1px solid #D3E8F2;padding:5px 12px;border-radius:99px}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--v-flame)}
.hero h1{font-size:clamp(34px,4.8vw,56px);line-height:1.05;margin:18px 0 18px;font-weight:700;letter-spacing:-.03em}
.hero h1 em{font-style:normal;color:var(--v-accent);background:linear-gradient(transparent 68%,#FCE3CF 68%);padding:0 .06em}
.hero p.lead{font-size:18px;color:var(--v-text);max-width:34em;margin:0 0 28px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.cta .btn.primary{box-shadow:0 10px 24px -10px rgba(10,108,151,.6)}
.cta .btn:not(.primary){background:#fff;color:var(--v-ink);border-color:#D5E0E7}
.fine{font-size:13.5px;color:var(--v-muted);margin-top:14px}
.trust{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px;color:var(--v-text);font-size:13.5px;font-weight:500}
.trust span{display:inline-flex;gap:7px;align-items:center}
.trust svg{width:16px;height:16px;color:var(--good)}
/* sahne */
.stage{position:relative;min-height:440px}
.stage .desk{position:absolute;inset:30px 0 0 40px;background:#F5F9FB;border:1px solid #E1EAF0;border-radius:18px;padding:18px;display:flex;flex-direction:column;gap:10px}
.stage .desk i{display:block;height:12px;border-radius:6px;background:#E3EBF0}
.stage .desk .row{display:grid;grid-template-columns:2fr 1fr 1fr;gap:10px}
.cc{position:absolute;top:0;left:0;width:min(370px,92%);background:#fff;color:var(--v-ink);border-radius:18px;box-shadow:0 34px 70px -24px rgba(15,52,74,.35),0 2px 6px rgba(15,34,48,.06);overflow:hidden;border:1px solid #E3EBF0}
.cc-top{background:#13344A;color:#fff;padding:14px 16px;display:flex;gap:12px;align-items:center}
.ring{width:42px;height:42px;border-radius:50%;background:#1D9E64;display:grid;place-items:center;position:relative;flex:none}
.ring svg{width:21px;height:21px;color:#fff}
.ring::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:2px solid #1D9E64}
@media (prefers-reduced-motion:no-preference){.ring::after{animation:pulse 1.3s ease-out infinite}.ring svg{animation:wig .7s ease-in-out infinite}@keyframes pulse{from{transform:scale(.9);opacity:.8}to{transform:scale(1.55);opacity:0}}@keyframes wig{0%,100%{transform:rotate(0)}25%{transform:rotate(-12deg)}75%{transform:rotate(12deg)}}}
.cc-top small{display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;opacity:.75;font-weight:600}
.cc-top b{font-family:var(--f-display);font-size:21px;font-weight:600}
.cc-b{padding:14px 16px;display:flex;flex-direction:column;gap:10px}
.cc-name{font-family:var(--f-display);font-size:19px;font-weight:600}
.cc-addr{color:var(--v-muted);font-size:13.5px}
.cc-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.cc-grid div{background:#F3F7FA;border-radius:9px;padding:7px 10px;font-size:13.5px;font-weight:700}
.cc-grid div span{display:block;font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--v-muted);font-weight:600}
.cc-last{border-left:3px solid var(--v-accent);padding-left:10px;font-size:13px}
.cc-btns{display:flex;gap:8px}.cc-btns span{flex:1;text-align:center;padding:8px;border-radius:8px;font-weight:600;font-size:13px;border:1px solid var(--v-line)}
.cc-btns span:first-child{background:var(--v-accent);border-color:var(--v-accent);color:#fff}
.usb{position:absolute;right:0;bottom:-6px;background:#fff;border:1px solid #E1EAF0;border-radius:12px;padding:10px 14px;display:flex;gap:10px;align-items:center;font-size:13px;color:var(--v-ink);font-weight:600;box-shadow:0 12px 28px -14px rgba(15,52,74,.35)}
.usb .led{width:9px;height:9px;border-radius:50%;background:#4CC28A;box-shadow:0 0 0 4px rgba(76,194,138,.2)}
/* rakam şeridi */
.stats{border-bottom:1px solid var(--v-line);background:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
.stat{padding:22px 18px;border-left:1px solid var(--v-line);display:flex;flex-direction:column;gap:2px}
.stat:first-child{border-left:0;padding-left:0}
.stat b{font-family:var(--f-display);font-size:22px;color:var(--v-ink);letter-spacing:-.02em}
.stat span{font-size:13.5px;color:var(--v-muted)}
/* bölümler */
section.block{padding-block:84px}
section.block.alt{background:var(--v-soft);border-block:1px solid #EDF2F5}
.section-h{max-width:680px;margin-bottom:36px}
.section-h .kicker{display:block;font-size:12.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--v-accent);margin-bottom:10px}
.section-h h2{font-size:clamp(26px,3.4vw,38px);margin-bottom:12px;line-height:1.15}
.section-h p{color:var(--v-text);margin:0;font-size:17px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.card{background:#fff;border:1px solid var(--v-line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:8px;transition:box-shadow .2s,transform .2s,border-color .2s}
a.card{text-decoration:none;color:inherit}
.card:hover{border-color:#D3E3EC;box-shadow:0 16px 34px -20px rgba(15,52,74,.35);transform:translateY(-2px)}
@media (prefers-reduced-motion:reduce){.card:hover{transform:none}}
.card .ico{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;background:var(--v-tint);color:var(--v-accent)}
.card .ico.f{background:#FDEEE2;color:var(--v-flame)}
.card .ico svg{width:21px;height:21px}
.card h3{font-size:17px}
.card p{margin:0;color:var(--v-text);font-size:14.5px}
.card .more{margin-top:auto;padding-top:6px;color:var(--v-accent);font-weight:600;font-size:14px}
.sol{padding:26px}
.sol h3{font-size:19px}
.flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;counter-reset:s;padding:0;margin:0}
.flow li{list-style:none;counter-increment:s;display:flex;flex-direction:column;gap:6px}
.flow li::before{content:counter(s);font-family:var(--f-display);font-weight:700;font-size:15px;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--v-accent);border:1.5px solid #CFE4EF;margin-bottom:6px;box-shadow:0 6px 14px -8px rgba(10,108,151,.5)}
.flow h3{font-size:17px}.flow p{margin:0;color:var(--v-text);font-size:14.5px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip-lg{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border:1px solid var(--v-line);border-radius:12px;background:#fff;font-weight:600;color:var(--v-ink);font-size:14px}
.chip-lg small{font-weight:500;color:var(--v-muted)}
.checks{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.checks li{display:flex;gap:10px;align-items:flex-start}
.checks li::before{content:"";flex:none;width:20px;height:20px;margin-top:2px;border-radius:50%;background:#E5F4EC url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231D7F54' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/12px no-repeat}
/* fiyat */
.toggle{display:inline-flex;background:#fff;border:1px solid var(--v-line);border-radius:99px;padding:4px;gap:4px;margin-bottom:22px}
.toggle button{all:unset;cursor:pointer;padding:7px 16px;border-radius:99px;font-weight:600;font-size:14px;color:var(--v-muted)}
.toggle button[aria-pressed="true"]{background:var(--v-ink);color:#fff}
.toggle button:focus-visible{outline:2px solid var(--v-accent)}
.price{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:20px;align-items:stretch}
.price-card{background:#fff;border:1.5px solid #BFDCEA;border-radius:20px;padding:30px;display:flex;flex-direction:column;gap:14px;box-shadow:0 30px 60px -36px rgba(10,108,151,.45)}
.price-card .amt{font-family:var(--f-display);font-size:46px;font-weight:700;letter-spacing:-.03em;line-height:1;color:var(--v-ink)}
.price-card .amt small{font-size:16px;font-weight:500;color:var(--v-muted);font-family:var(--f-body);letter-spacing:0}
.price-card ul{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;font-size:14.5px}
.price-card li{display:flex;gap:8px}.price-card li::before{content:"✓";color:var(--good);font-weight:700}
.price-side{background:var(--v-soft);border:1px solid var(--v-line);border-radius:20px;padding:28px;display:flex;flex-direction:column;gap:12px}
.price-side h3{font-size:19px}.price-side p{margin:0;font-size:14.5px}
.save{color:var(--good);font-weight:700;font-size:14px}
.old{color:var(--v-muted);font-size:20px;font-weight:600}
.note{color:var(--v-muted);font-size:14px;font-weight:600}
.campaign{align-self:flex-start;background:var(--v-flame);color:#fff;font-weight:700;font-size:13.5px;padding:5px 12px;border-radius:99px}
.paylogos{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.paylogos img{height:30px;width:auto;max-width:100%;display:block}
.paychip{display:inline-flex;align-items:center;height:28px;padding:0 10px;border:1px solid #DCE5EB;border-radius:7px;background:#fff;font-size:12px;font-weight:700;letter-spacing:.02em;color:#3A4B57}
.paysecure{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--v-text);font-weight:500}
.paysecure svg{width:16px;height:16px;color:var(--good);flex:none}
/* sss */
.faq{display:flex;flex-direction:column;gap:10px;max-width:860px}
.faq details{background:#fff;border:1px solid var(--v-line);border-radius:14px;padding:15px 18px}
.faq details[open]{border-color:#CFE4EF;box-shadow:0 10px 24px -18px rgba(15,52,74,.35)}
.faq summary{cursor:pointer;font-weight:700;color:var(--v-ink)}
.faq p{margin:10px 0 0;color:var(--v-text)}
/* iletişim */
.contact{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:36px;align-items:start}
.contact .section-h{margin-bottom:18px}
.c-acts{display:flex;flex-wrap:wrap;gap:10px}.c-acts svg{width:18px;height:18px}
.c-card{background:#fff;border:1px solid var(--v-line);border-radius:18px;padding:6px 22px;box-shadow:0 20px 40px -30px rgba(15,52,74,.4)}
.c-card dl{margin:0;display:grid;grid-template-columns:minmax(120px,auto) minmax(0,1fr)}
.c-card dt,.c-card dd{padding:13px 0;border-bottom:1px solid var(--v-line);margin:0}
.c-card dt{color:var(--v-muted);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding-right:16px;padding-top:15px}
.c-card dd{font-weight:600;overflow-wrap:anywhere;color:var(--v-ink)}
.c-card dt:nth-last-of-type(1),.c-card dd:last-child{border-bottom:0}
.c-card dd a{color:var(--v-ink);text-decoration:none}.c-card dd a:hover{color:var(--v-accent);text-decoration:underline}
.c-card .firm{font-family:var(--f-display);font-size:18px;padding:16px 0 4px;margin:0;color:var(--v-ink)}
/* çağrı bandı */
.ctaband{background:linear-gradient(120deg,#0B4F70 0%,#0A6C97 60%,#118AB8 100%);color:#E8F4FA;border-radius:22px;padding:40px;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.ctaband h2{color:#fff;font-size:clamp(22px,3vw,30px);margin:0 0 6px}
.ctaband p{margin:0;color:#D4E9F3}
.ctaband .btn{background:#fff;color:var(--v-ink);border-color:#fff}
.ctaband .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
/* sayfa altı */
footer.site{background:#0B1F2C;color:#B8C8D3;padding-block:56px calc(32px + env(safe-area-inset-bottom,0px));font-size:14px}
footer.site .cols{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:32px}
footer.site h3{color:#fff;font-size:14px;letter-spacing:.06em;text-transform:uppercase;font-family:var(--f-body);margin-bottom:12px}
footer.site a{color:#B8C8D3;text-decoration:none}footer.site a:hover{color:#fff;text-decoration:underline}
footer.site .links{display:flex;flex-direction:column;gap:8px}
footer.site .brand{color:#fff;margin-bottom:10px}
footer.site .bottom{margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center;font-size:13px}
footer.site .paychip{background:transparent;color:#DCE7EE;border-color:rgba(255,255,255,.2)}
footer.site .paylogos img{background:#fff;border-radius:6px;padding:3px 6px}
.foot-firm{font-size:13px;line-height:1.6}
/* sayfa içi: çözüm sayfaları */
.crumbs{font-size:13px;color:var(--v-muted);margin-bottom:14px}
.crumbs a{color:var(--v-muted);text-decoration:none}.crumbs a:hover{text-decoration:underline}
.crumbs span{margin:0 6px}
.prose{max-width:760px}
.prose p{font-size:16.5px;line-height:1.7;margin:0 0 14px}
.prose h2{font-size:24px;margin:30px 0 10px}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start}
@media (max-width:980px){.hero .wrap,.price,.contact,.split{grid-template-columns:1fr}.grid3{grid-template-columns:1fr 1fr}.flow{grid-template-columns:1fr 1fr}.stats .wrap{grid-template-columns:1fr 1fr}.stat:nth-child(3){border-left:0;padding-left:0}footer.site .cols{grid-template-columns:1fr 1fr}.stage{min-height:420px}}
@media (max-width:640px){.grid3,.grid2,.flow{grid-template-columns:1fr}.price-card ul{grid-template-columns:1fr}.stage .desk{left:12px}.usb{right:4px}footer.site .cols{grid-template-columns:1fr}.ctaband{padding:28px}section.block{padding-block:64px}.stat{padding:16px 12px}}
@media (max-width:480px){.c-card dl{grid-template-columns:1fr}.c-card dt{padding-bottom:0;border-bottom:0}.c-card dd{padding-top:3px}}