/* =========================================================
   KENT VERİ İLETİŞİM TEKNOLOJİLERİ A.Ş. — Ortak Tasarım Sistemi
   ========================================================= */

:root{
  /* Marka renkleri (logodan) */
  --navy-950:#080D22;
  --navy-900:#0A1230;
  --navy-800:#0E1B4D;
  --navy-700:#152863;
  --navy-600:#1E3A82;
  --red-700:#A6000C;
  --red-600:#D40712;
  --red-500:#E93A44;

  --paper:#FFFFFF;
  --mist:#F4F6FB;
  --mist-2:#EBEFF8;
  --ink:#0D1220;
  --ash:#5A6178;
  --ash-2:#8A90A6;
  --line:#E3E7F1;
  --line-2:#D3D9E8;

  --maxw:1180px;
  --radius-s:4px;
  --radius-m:10px;
  --shadow-1:0 1px 2px rgba(10,18,48,.06);
  --shadow-2:0 18px 48px -20px rgba(10,18,48,.28);

  --ff-head:'Manrope', 'IBM Plex Sans', sans-serif;
  --ff-body:'IBM Plex Sans', sans-serif;
}

/* Bölüm temaları: Veri = lacivert ağırlıklı, SMS = kırmızı ağırlıklı */
body.theme-veri{ --accent:var(--navy-800); --accent-2:var(--navy-600); --accent-soft:#EEF1FA; --pop:var(--red-600); }
body.theme-sms{ --accent:var(--red-600); --accent-2:var(--red-700); --accent-soft:#FCEEEF; --pop:var(--navy-800); }
body.theme-home{ --accent:var(--navy-800); --accent-2:var(--navy-600); --accent-soft:#EEF1FA; --pop:var(--red-600); }

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--ff-body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--ff-head); color:var(--navy-950); margin:0 0 .5em; line-height:1.18; font-weight:800; letter-spacing:-.01em; }
p{ margin:0 0 1em; color:var(--ash); }
:focus-visible{ outline:3px solid var(--pop); outline-offset:2px; }

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 28px; }
.section{ padding:96px 0; }
.section--tight{ padding:64px 0; }
.section--mist{ background:var(--mist); }
.section--dark{ background:var(--navy-950); color:#C7CCDD; }
.section--dark h1,.section--dark h2,.section--dark h3{ color:#fff; }
.section--dark p{ color:#A7AEC6; }

.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--ff-head); font-weight:700; font-size:13px;
  color:var(--accent); margin-bottom:16px;
}
.eyebrow::before{
  content:''; width:22px; height:2px; background:var(--pop); display:inline-block;
}

h1{ font-size:clamp(34px,4.4vw,54px); }
h2{ font-size:clamp(26px,3.1vw,38px); }
h3{ font-size:20px; }
.lede{ font-size:19px; color:var(--ash); max-width:62ch; }

.grid{ display:grid; gap:28px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  font-family:var(--ff-head); font-weight:700; font-size:15px;
  padding:14px 26px; border-radius:var(--radius-s); border:1.5px solid transparent;
  cursor:pointer; transition:transform .15s ease, background .2s ease, border-color .2s ease, color .2s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--pop); color:#fff; }
.btn-primary:hover{ background:var(--red-700); }
body.theme-sms .btn-primary:hover{ background:var(--navy-700); }
.btn-outline{ background:transparent; border-color:var(--line-2); color:var(--navy-950); }
.btn-outline:hover{ border-color:var(--accent); color:var(--accent); }
.btn-ghost-light{ background:rgba(255,255,255,.08); border-color:rgba(255,255,255,.35); color:#fff; }
.btn-ghost-light:hover{ background:rgba(255,255,255,.16); }
.btn-block{ width:100%; }

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky; top:0; z-index:60;
  background:rgba(255,255,255,.92); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 28px; max-width:var(--maxw); margin:0 auto; gap:24px;
}
.nav-brand{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.nav-brand img{ height:44px; width:auto; }
.nav-brand-text{ font-family:var(--ff-head); font-weight:800; font-size:15px; color:var(--navy-950); line-height:1.15; }
.nav-brand-text span{ display:block; font-size:11px; font-weight:600; color:var(--ash-2); }

.nav-links{ display:flex; align-items:center; gap:2px; flex:1; justify-content:center; }
.nav-links a{
  font-family:var(--ff-head); font-weight:600; font-size:14.5px; color:var(--navy-950);
  padding:10px 14px; border-radius:var(--radius-s); position:relative;
}
.nav-links a:hover{ color:var(--accent); }
.nav-links a.active{ color:var(--accent); }
.nav-links a.active::after{
  content:''; position:absolute; left:14px; right:14px; bottom:2px; height:2px; background:var(--pop);
}
.nav-cta{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.nav-cta .btn{ padding:10px 18px; font-size:13.5px; }

.nav-toggle{ display:none; background:none; border:1px solid var(--line-2); border-radius:var(--radius-s); width:42px; height:42px; cursor:pointer; }
.nav-toggle span{ display:block; width:18px; height:2px; background:var(--navy-950); margin:4px auto; transition:.2s; }

/* ---------- Hero ---------- */
.hero{ position:relative; overflow:hidden; padding:76px 0 90px; }
.hero-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
.hero-art{ position:relative; }
.hero-art img{ width:100%; height:auto; }
.hero-tags{ display:flex; flex-wrap:wrap; gap:10px; margin-top:28px; }
.hero-tag{
  font-family:var(--ff-head); font-size:12.5px; font-weight:700; color:var(--accent);
  background:var(--accent-soft); border:1px solid var(--line); padding:7px 12px; border-radius:99px;
}
.hero-actions{ display:flex; gap:14px; margin-top:34px; flex-wrap:wrap; }
.hero-pattern{
  position:absolute; inset:0; z-index:-1; opacity:.5;
  background-image:url('../img/pattern-arcs.svg'); background-repeat:no-repeat; background-position:right -80px top -60px; background-size:640px;
}

/* ---------- Stat strip ---------- */
.stat-strip{ background:var(--navy-950); color:#fff; padding:40px 0; }
.stat-strip .grid-4{ text-align:center; }
.stat-num{ font-family:var(--ff-head); font-weight:800; font-size:clamp(26px,3vw,36px); color:#fff; }
.stat-label{ font-size:13.5px; color:#9BA3C0; margin-top:4px; }

/* ---------- Cards ---------- */
.panel{
  border:1px solid var(--line); border-radius:var(--radius-m); background:#fff;
  padding:30px; transition:border-color .2s ease, transform .2s ease;
}
.panel:hover{ border-color:var(--accent); }
.panel-mark{
  width:46px; height:46px; border-radius:var(--radius-s); background:var(--accent-soft);
  display:flex; align-items:center; justify-content:center; margin-bottom:18px;
}
.panel-mark img{ width:24px; height:24px; }
.panel-mark svg{ width:24px; height:24px; color:var(--accent); }
.feature-row .icon svg{ width:26px; height:26px; color:var(--accent); }
.ico{ stroke:currentColor; fill:none; stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round; }
.panel h3{ margin-bottom:8px; }
.panel p{ font-size:15px; margin-bottom:0; }
.panel-link{ display:inline-flex; align-items:center; gap:6px; margin-top:16px; font-family:var(--ff-head); font-weight:700; font-size:14px; color:var(--accent); }

.split{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.split-reverse .split-media{ order:2; }
.split ul.check-list{ margin-top:18px; }
.check-list li{ display:flex; gap:12px; padding:9px 0; color:var(--ink); font-size:15px; border-bottom:1px solid var(--line); }
.check-list li:last-child{ border-bottom:none; }
.check-list li::before{
  content:''; flex-shrink:0; width:8px; height:8px; margin-top:7px; background:var(--pop); border-radius:1px;
}

.media-frame{
  border-radius:var(--radius-m); overflow:hidden; border:1px solid var(--line); background:var(--mist);
}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--navy-950) 0%,var(--navy-800) 55%,var(--accent) 100%);
  color:#fff; border-radius:var(--radius-m); padding:56px; display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap;
}
.cta-band h2{ color:#fff; margin-bottom:6px; }
.cta-band p{ color:#B9BFDA; margin:0; }

/* ---------- Two-button index page ---------- */
.gate{
  min-height:100svh; position:relative; overflow:hidden; background:var(--navy-950);
}
.gate-panel{
  position:absolute; inset:0; display:flex; align-items:center; text-decoration:none; color:#fff;
  transition:filter .35s ease;
}
.gate-panel-veri{
  background:radial-gradient(130% 150% at 12% 18%, var(--navy-600) 0%, var(--navy-800) 44%, var(--navy-950) 100%);
  clip-path:polygon(0 0, 55% 0, 45% 100%, 0 100%);
  justify-content:flex-start;
}
.gate-panel-sms{
  background:radial-gradient(130% 150% at 88% 82%, var(--red-500) 0%, var(--red-600) 44%, var(--red-700) 100%);
  clip-path:polygon(55% 0, 100% 0, 100% 100%, 45% 100%);
  justify-content:flex-end;
}
.gate-panel:hover{ filter:brightness(1.08); }
.gate-ring{
  position:absolute; inset:-15%; opacity:.16; pointer-events:none;
  background-image:repeating-radial-gradient(circle at 32% 34%, rgba(255,255,255,.9) 0, rgba(255,255,255,.9) 1.5px, transparent 1.5px, transparent 58px);
}
.gate-panel-sms .gate-ring{ background-image:repeating-radial-gradient(circle at 68% 66%, rgba(255,255,255,.9) 0, rgba(255,255,255,.9) 1.5px, transparent 1.5px, transparent 58px); }

.gate-content{
  position:relative; z-index:1; display:flex; flex-direction:column; gap:16px; max-width:420px;
}
.gate-panel-veri .gate-content{ padding-left:clamp(28px,7vw,96px); padding-right:9vw; align-items:flex-start; text-align:left; }
.gate-panel-sms .gate-content{ padding-right:clamp(28px,7vw,96px); padding-left:9vw; align-items:flex-end; text-align:right; margin-left:auto; }

.gate-label{
  font-family:var(--ff-head); font-weight:800; font-size:clamp(42px,7.2vw,86px); line-height:.95; letter-spacing:-.02em; color:#fff;
}
.gate-sub{ font-size:clamp(13px,1.7vw,16px); font-weight:700; line-height:1.7; color:rgba(255,255,255,.82); white-space:nowrap; margin:0; }
.gate-arrow{
  width:46px; height:46px; border-radius:50%; border:1.5px solid rgba(255,255,255,.35);
  display:flex; align-items:center; justify-content:center; color:#fff;
  transition:transform .3s ease, background .3s ease, border-color .3s ease;
}
.gate-panel:hover .gate-arrow{ background:rgba(255,255,255,.16); border-color:rgba(255,255,255,.6); transform:translateX(5px); }
.gate-panel-sms .gate-arrow{ transform:scaleX(-1); }
.gate-panel-sms:hover .gate-arrow{ transform:scaleX(-1) translateX(5px); }

.gate-emblem{
  position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); z-index:2; pointer-events:none;
}
.gate-emblem-badge{
  width:190px; height:190px; border-radius:50%; background:#fff; display:flex; align-items:center; justify-content:center;
  box-shadow:0 34px 64px -22px rgba(0,0,0,.55), 0 0 0 10px rgba(255,255,255,.05);
}
.gate-emblem-badge img{ width:160px; height:160px; }

@media (max-width:760px){
  .gate-panel-veri{ clip-path:polygon(0 0, 100% 0, 100% 55%, 0 45%); align-items:flex-start; }
  .gate-panel-sms{ clip-path:polygon(0 55%, 100% 45%, 100% 100%, 0 100%); align-items:flex-end; }
  .gate-panel-veri .gate-content,.gate-panel-sms .gate-content{
    padding:0 28px; align-items:center; text-align:center; max-width:100%; margin-left:0;
  }
  .gate-label{ font-size:clamp(38px,13vw,56px); }
  .gate-sub{ white-space:normal; font-size:clamp(13px,3.6vw,16px); }
  .gate-emblem-badge{ width:132px; height:132px; }
  .gate-emblem-badge img{ width:110px; height:110px; }
}


/* ---------- Sub-page hero (interior pages) ---------- */
.page-hero{
  padding:64px 0 56px; background:var(--mist); border-bottom:1px solid var(--line); position:relative; overflow:hidden;
}
.page-hero .wrap{ position:relative; z-index:1; }
.breadcrumb{ font-size:13px; color:var(--ash-2); margin-bottom:14px; }
.breadcrumb a{ color:var(--ash-2); }
.breadcrumb a:hover{ color:var(--accent); }
.page-hero-pattern{ position:absolute; right:-100px; top:-100px; width:420px; opacity:.5; z-index:0; }

/* ---------- Feature list (icon rows) ---------- */
.feature-row{ display:flex; gap:20px; padding:26px 0; border-bottom:1px solid var(--line); }
.feature-row:last-child{ border-bottom:none; }
.feature-row .icon{ flex-shrink:0; width:52px; height:52px; border-radius:var(--radius-s); background:var(--accent-soft); display:flex; align-items:center; justify-content:center; }
.feature-row .icon img{ width:26px; height:26px; }
.feature-row h3{ margin-bottom:6px; }
.feature-row p{ margin-bottom:0; }

/* ---------- FAQ ---------- */
.faq-item{ border-bottom:1px solid var(--line); }
.faq-item summary{
  cursor:pointer; list-style:none; display:flex; justify-content:space-between; align-items:center;
  padding:20px 0; font-family:var(--ff-head); font-weight:700; font-size:16px; color:var(--navy-950);
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:'+'; font-size:22px; color:var(--accent); font-weight:400; transition:transform .2s; }
.faq-item[open] summary::after{ transform:rotate(45deg); }
.faq-item p{ padding-bottom:20px; margin:0; max-width:70ch; }

/* ---------- Timeline / process ---------- */
.process{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; position:relative; }
.process-step{ padding:0 20px 0 0; position:relative; }
.process-step .num{ font-family:var(--ff-head); font-weight:800; font-size:13px; color:var(--pop); margin-bottom:10px; letter-spacing:.03em; }
.process-step h3{ font-size:17px; }
.process-step p{ font-size:14px; }
.process-step:not(:last-child)::after{
  content:''; position:absolute; top:6px; right:0; width:calc(100% - 0px); height:1px; background:var(--line);
}

/* ---------- Tables ---------- */
.info-table{ width:100%; border-collapse:collapse; }
.info-table th,.info-table td{ text-align:left; padding:14px 16px; border-bottom:1px solid var(--line); font-size:14.5px; }
.info-table th{ font-family:var(--ff-head); color:var(--ash-2); font-weight:700; font-size:12.5px; text-transform:uppercase; letter-spacing:.04em; }

/* ---------- Contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:44px; align-items:start; }
.form-field{ margin-bottom:18px; }
.form-field label{ display:block; font-family:var(--ff-head); font-weight:700; font-size:13.5px; margin-bottom:7px; color:var(--navy-950); }
.form-field input,.form-field select,.form-field textarea{
  width:100%; padding:13px 14px; border:1.5px solid var(--line-2); border-radius:var(--radius-s);
  font-family:var(--ff-body); font-size:15px; color:var(--ink); background:#fff; transition:border-color .2s;
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{ border-color:var(--accent); outline:none; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.contact-card{ border:1px solid var(--line); border-radius:var(--radius-m); padding:26px; margin-bottom:16px; }
.contact-card h3{ font-size:15px; margin-bottom:12px; }
.contact-card .row{ display:flex; gap:12px; padding:8px 0; font-size:14.5px; color:var(--ash); }
.contact-card .row strong{ color:var(--ink); font-weight:600; min-width:64px; }
.map-frame{ border:1px solid var(--line); border-radius:var(--radius-m); overflow:hidden; height:260px; }
.map-frame iframe{ width:100%; height:100%; border:0; }
.form-note{ font-size:12.5px; color:var(--ash-2); margin-top:4px; }
.form-success{ display:none; background:var(--accent-soft); border:1px solid var(--line); border-radius:var(--radius-s); padding:14px 16px; font-size:14px; color:var(--navy-950); margin-top:14px; }
.form-success.show{ display:block; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy-950); color:#9BA3C0; padding:64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; }
.footer-brand img{ height:46px; margin-bottom:14px; }
.footer-logo-badge{
  display:inline-flex; align-items:center; justify-content:center;
  background:#fff; border-radius:14px; padding:12px 16px; margin-bottom:16px;
  box-shadow:0 10px 26px -10px rgba(0,0,0,.5);
}
.footer-logo-badge img{ height:44px; margin-bottom:0; display:block; }
.footer-brand p{ color:#8890AC; font-size:14px; max-width:32ch; }
.footer-col h4{ color:#fff; font-family:var(--ff-head); font-size:13.5px; margin-bottom:16px; letter-spacing:.02em; }
.footer-col a{ display:block; color:#9BA3C0; font-size:14px; padding:6px 0; }
.footer-col a:hover{ color:#fff; }
.footer-addr{ color:#9BA3C0; font-size:14px; padding:6px 0 0; line-height:1.6; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,.1); margin-top:44px; padding-top:24px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:13px; color:#6E7692; }

/* ---------- Utility ---------- */
.mt-0{ margin-top:0; } .mb-0{ margin-bottom:0; }
.text-center{ text-align:center; }
.tag-list{ display:flex; flex-wrap:wrap; gap:10px; }
.pill{ font-size:12.5px; font-family:var(--ff-head); font-weight:700; color:var(--accent); background:var(--accent-soft); padding:6px 12px; border-radius:99px; }

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .nav-links{ display:none; }
  .nav-toggle{ display:block; }
  .hero-grid{ grid-template-columns:1fr; }
  .hero-art{ order:-1; }
  .split{ grid-template-columns:1fr; }
  .split-reverse .split-media{ order:0; }
  .grid-2{ grid-template-columns:1fr; }
  .grid-3{ grid-template-columns:1fr 1fr; }
  .grid-4{ grid-template-columns:1fr 1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .process{ grid-template-columns:1fr 1fr; row-gap:28px; }
  .process-step::after{ display:none; }
  .contact-grid{ grid-template-columns:1fr; }
}
@media (max-width:600px){
  .section{ padding:64px 0; }
  .grid-3,.grid-4{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
  .cta-band{ padding:36px 24px; flex-direction:column; align-items:flex-start; }
  .nav{ padding:12px 18px; }
  .nav-cta{ gap:8px; }
  .nav-cta .btn{ padding:9px 13px; font-size:12.5px; white-space:nowrap; }
}
@media (max-width:420px){
  .nav-brand-text{ display:none; }
}

/* ---------- Mobile nav panel ---------- */
.mobile-panel{
  display:none; position:fixed; inset:0; z-index:80; background:rgba(8,13,34,.6);
}
.mobile-panel.open{ display:block; }
.mobile-panel-inner{
  position:absolute; top:0; right:0; height:100%; width:82%; max-width:340px; background:#fff;
  padding:22px; overflow-y:auto;
}
.mobile-panel-close{ background:none; border:1px solid var(--line-2); border-radius:var(--radius-s); width:38px; height:38px; margin-left:auto; display:block; cursor:pointer; }
.mobile-panel a{ display:block; font-family:var(--ff-head); font-weight:700; font-size:17px; padding:14px 4px; border-bottom:1px solid var(--line); color:var(--navy-950); }
.mobile-panel .btn{ margin-top:20px; }