/* ==========================================================================
   Gemsoft — Tasarım Sistemi
   ========================================================================== */

:root{
  /* Renkler — Gemsoft logosundaki mavi/lacivert gem paletinden türetildi */
  --ink:        #0A1730;   /* ana koyu zemin (logo lacivert metniyle uyumlu) */
  --ink-2:      #11223F;   /* koyu yüzey / kart */
  --ink-3:      #1B3260;   /* koyu yüzey - hover/border */
  --paper:      #F5F8FC;   /* ana açık zemin (hafif mavi ton) */
  --paper-2:    #FFFFFF;   /* açık zeminde kart */
  --line:       #E1E8F2;   /* açık zeminde ayraç */
  --line-dark:  rgba(255,255,255,.12);
  --text:       #0B1B33;   /* açık zeminde ana metin */
  --text-dark:  #EAF1FB;   /* koyu zeminde ana metin */
  --muted:      #55637A;   /* açık zeminde ikincil metin */
  --muted-dark: #9FB0C8;   /* koyu zeminde ikincil metin */
  --accent:     #1AA3FF;   /* marka mavisi (logo parlak faseti) */
  --accent-2:   #7BC9FF;   /* açık mavi ton */
  --accent-deep:#0B63C7;   /* koyu mavi / hover */

  --radius: 4px;
  --notch: 22px;           /* imza çentik ölçüsü */
  --container: 1180px;

  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
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(--font-display); margin:0; line-height:1.15; letter-spacing:-.01em; }
p{ margin:0; }
button{ font-family:inherit; }

.container{ max-width:var(--container); margin:0 auto; padding:0 28px; }

section{ padding:96px 0; }
@media (max-width:768px){ section{ padding:64px 0; } }

/* ---------- Çentik imzası: marka işaretindeki kesik köşe motifi ---------- */
.notched{
  clip-path: polygon(0 0, calc(100% - var(--notch)) 0, 100% var(--notch), 100% 100%, 0 100%);
  position:relative;
}
.notched::after{
  content:"";
  position:absolute;
  top:0; right:0;
  width:0; height:0;
  border-style:solid;
  border-width:0 var(--notch) var(--notch) 0;
  border-color:transparent var(--accent) transparent transparent;
}
.notched-lg{ --notch:34px; }

/* ---------- Eyebrow / mono etiket ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:26px; height:2px;
  background:var(--accent);
  display:inline-block;
}

/* ---------- Butonlar ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:15px 28px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:15px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
  white-space:nowrap;
}
.btn:active{ transform:translateY(1px); }
.btn-primary{
  background:var(--accent);
  color:#12100C;
}
.btn-primary:hover{ background:var(--accent-deep); color:#fff; }
.btn-ghost-dark{
  background:transparent;
  border-color:var(--line-dark);
  color:var(--text-dark);
}
.btn-ghost-dark:hover{ border-color:var(--accent); color:var(--accent); }
.btn-ghost-light{
  background:transparent;
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost-light:hover{ border-color:var(--accent); color:var(--accent-deep); }
.btn-sm{ padding:11px 20px; font-size:14px; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(10,14,26,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-dark);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  height:84px;
}
.brand{ display:inline-flex; align-items:center; gap:12px; }
.brand-icon{ width:38px; height:auto; flex:none; }
.brand-text{
  font-family:var(--font-display);
  font-weight:700;
  font-size:22px;
  letter-spacing:.01em;
  color:#fff;
}

.main-nav ul{ display:flex; gap:34px; align-items:center; }
.main-nav a{
  font-size:14.5px;
  font-weight:500;
  color:var(--muted-dark);
  transition:color .15s ease;
  position:relative;
}
.main-nav a:hover, .main-nav a.active{ color:#fff; }
.main-nav a.active::after{
  content:"";
  position:absolute; left:0; right:0; bottom:-28px;
  height:2px; background:var(--accent);
}
.header-actions{ display:flex; align-items:center; gap:18px; }

.nav-toggle{
  display:none;
  width:40px; height:40px;
  background:transparent; border:1px solid var(--line-dark);
  color:#fff;
  align-items:center; justify-content:center;
}

@media (max-width:960px){
  .main-nav{
    position:fixed; inset:84px 0 0 0;
    background:var(--ink);
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease, transform .2s ease;
    overflow-y:auto;
    border-top:1px solid var(--line-dark);
  }
  .main-nav.open{ opacity:1; transform:translateY(0); pointer-events:auto; }
  .main-nav ul{ flex-direction:column; align-items:flex-start; gap:0; padding:12px 28px 40px; }
  .main-nav li{ width:100%; border-bottom:1px solid var(--line-dark); }
  .main-nav a{ display:block; padding:18px 0; font-size:17px; }
  .main-nav a.active::after{ display:none; }
  .header-actions .btn-primary{ display:none; }
  .nav-toggle{ display:flex; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  background:
    radial-gradient(680px 420px at 88% -10%, rgba(26,163,255,.16), transparent 60%),
    var(--ink);
  color:var(--text-dark);
  padding:110px 0 100px;
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line-dark);
}
.hero-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image: radial-gradient(700px 500px at 78% 30%, black, transparent 75%);
  opacity:.55;
}
.hero .container{ position:relative; display:grid; grid-template-columns:1.15fr .85fr; gap:60px; align-items:center; }
.hero h1{ font-size:clamp(34px,4.6vw,58px); color:#fff; margin-bottom:22px; }
.hero h1 em{ font-style:normal; color:var(--accent); }
.hero p.lead{ font-size:18px; color:var(--muted-dark); max-width:52ch; margin-bottom:36px; }
.hero-ctas{ display:flex; gap:16px; flex-wrap:wrap; }

.hero-panel{
  background:var(--ink-2);
  border:1px solid var(--line-dark);
  padding:26px;
}
.hero-panel .term-bar{ display:flex; gap:7px; margin-bottom:18px; }
.term-dot{ width:10px; height:10px; border-radius:50%; background:#3A445C; }
.hero-panel .term-line{ font-family:var(--font-mono); font-size:13.5px; color:var(--muted-dark); margin-bottom:10px; }
.hero-panel .term-line .ok{ color:#5FD97A; }
.hero-panel .term-line .tag{ color:var(--accent); }
.hero-stats{
  margin-top:78px;
  display:grid; grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line-dark);
  padding-top:36px;
}
.hero-stats .stat b{ font-family:var(--font-display); font-size:32px; color:#fff; display:block; }
.hero-stats .stat span{ font-size:13.5px; color:var(--muted-dark); }

@media (max-width:900px){
  .hero .container{ grid-template-columns:1fr; }
  .hero-stats{ grid-template-columns:repeat(2,1fr); row-gap:28px; }
}

/* ==========================================================================
   Section headers
   ========================================================================== */
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2{ font-size:clamp(28px,3.4vw,42px); margin-bottom:16px; }
.section-head p{ color:var(--muted); font-size:17px; }
.section-head.on-dark p{ color:var(--muted-dark); }
.section-head.on-dark h2{ color:#fff; }

.on-dark{ background:var(--ink); color:var(--text-dark); }
.on-paper2{ background:var(--paper-2); }

/* ==========================================================================
   Ürünler / Servisler ortak kart yapısı
   ========================================================================== */
.grid{ display:grid; gap:26px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
@media (max-width:900px){ .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .grid-2,.grid-3,.grid-4{ grid-template-columns:1fr; } }

.card{
  background:var(--paper-2);
  border:1px solid var(--line);
  padding:32px 28px;
  transition:border-color .2s ease, transform .2s ease;
}
.card:hover{ border-color:var(--accent); transform:translateY(-3px); }
.card .icon{
  width:46px; height:46px;
  display:flex; align-items:center; justify-content:center;
  background:rgba(26,163,255,.1);
  color:var(--accent);
  margin-bottom:20px;
}
.card .icon svg{ width:24px; height:24px; }
.card h3{ font-size:18px; margin-bottom:10px; }
.card p{ color:var(--muted); font-size:14.5px; }

.card-dark{
  background:var(--ink-2);
  border:1px solid var(--line-dark);
  color:var(--text-dark);
}
.card-dark:hover{ border-color:var(--accent); }
.card-dark p{ color:var(--muted-dark); }
.card-dark .icon{ background:rgba(26,163,255,.14); }

/* Servis listesi (check-list biçimi) */
.service-block{
  background:var(--paper-2);
  border:1px solid var(--line);
  padding:44px;
}
.service-block-head{ display:flex; align-items:center; gap:16px; margin-bottom:8px; }
.service-block-head .tag-num{ font-family:var(--font-mono); color:var(--accent); font-size:14px; }
.service-block h3{ font-size:24px; margin-bottom:6px; }
.service-block > p{ color:var(--muted); margin-bottom:30px; }
.check-list{ display:grid; grid-template-columns:1fr 1fr; gap:14px 30px; }
.check-list li{ display:flex; gap:12px; align-items:flex-start; font-size:15px; }
.check-list li svg{ flex:none; width:18px; height:18px; color:var(--accent); margin-top:2px; }
@media (max-width:640px){ .check-list{ grid-template-columns:1fr; } }

/* ==========================================================================
   Ürün öne çıkan (SecodX) blok
   ========================================================================== */
.product-feature{
  background:var(--ink);
  color:var(--text-dark);
  border:1px solid var(--line-dark);
  overflow:hidden;
}
.product-feature-inner{
  display:grid; grid-template-columns:1fr 1fr; gap:0; align-items:stretch;
}
.product-feature-copy{ padding:56px 52px; }
.product-feature-visual{
  background:
    radial-gradient(420px 320px at 20% 10%, rgba(26,163,255,.18), transparent 60%),
    var(--ink-2);
  padding:52px;
  display:flex; align-items:center; justify-content:center;
  border-left:1px solid var(--line-dark);
}
@media (max-width:900px){
  .product-feature-inner{ grid-template-columns:1fr; }
  .product-feature-visual{ border-left:none; border-top:1px solid var(--line-dark); }
  .product-feature-copy{ padding:44px 30px; }
  .product-feature-visual{ padding:36px 30px; }
}
.product-feature h3{ font-size:30px; margin-bottom:14px; }
.product-feature .eyebrow{ color:var(--accent-2); }
.product-feature p.desc{ color:var(--muted-dark); font-size:16px; margin-bottom:28px; max-width:50ch; }
.product-feature .feature-tags{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:34px; }
.product-feature .feature-tags span{
  font-family:var(--font-mono); font-size:12.5px;
  border:1px solid var(--line-dark); padding:6px 12px;
  color:var(--muted-dark);
}
.product-feature .actions{ display:flex; gap:14px; flex-wrap:wrap; }

.browser-mock{ width:100%; max-width:420px; background:#fff; color:#111; }
.browser-mock .bar{ background:#E7E9EE; display:flex; gap:6px; padding:10px 14px; align-items:center; }
.browser-mock .bar .d{ width:9px; height:9px; border-radius:50%; background:#C7CCD6; }
.browser-mock .bar .url{ margin-left:10px; font-family:var(--font-mono); font-size:11px; color:#7A8092; background:#fff; padding:4px 10px; flex:1; }
.browser-mock .screen{ padding:22px; }
.browser-mock .screen .row{ display:flex; justify-content:space-between; align-items:center; margin-bottom:14px; }
.browser-mock .screen h4{ font-family:var(--font-display); font-size:16px; }
.browser-mock .badge{ font-family:var(--font-mono); font-size:10.5px; background:rgba(26,163,255,.12); color:var(--accent-deep); padding:4px 8px; }
.mock-bars{ display:flex; gap:6px; align-items:flex-end; height:70px; margin-bottom:16px; }
.mock-bars i{ flex:1; background:linear-gradient(180deg, var(--accent), var(--accent-2)); }
.mock-lines div{ height:8px; background:#EEF0F4; margin-bottom:8px; }
.mock-lines div:nth-child(2){ width:80%; }
.mock-lines div:nth-child(3){ width:60%; }

/* ==========================================================================
   Süreç / adımlar
   ========================================================================== */
.steps{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; }
.step{ padding:0 26px 0 0; border-right:1px dashed var(--line); }
.step:last-child{ border-right:none; padding-right:0; }
.step .num{ font-family:var(--font-mono); color:var(--accent); font-size:13px; margin-bottom:14px; display:block; }
.step h4{ font-size:17px; margin-bottom:10px; }
.step p{ color:var(--muted); font-size:14px; }
@media (max-width:900px){
  .steps{ grid-template-columns:1fr 1fr; row-gap:34px; }
  .step{ border-right:none; }
}
@media (max-width:600px){ .steps{ grid-template-columns:1fr; } }

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band{
  background:var(--ink);
  color:#fff;
  border-top:1px solid var(--line-dark);
  border-bottom:1px solid var(--line-dark);
}
.cta-band .container{ display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap; }
.cta-band h3{ font-size:26px; }
.cta-band p{ color:var(--muted-dark); margin-top:8px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{ background:var(--ink); color:var(--muted-dark); border-top:1px solid var(--line-dark); }
.footer-top{ padding:70px 0 50px; display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; }
.footer-top .brand{ margin-bottom:16px; }
.footer-top .brand-icon{ width:34px; }
.footer-top .brand-text{ font-size:20px; }
.footer-top p{ font-size:14px; max-width:34ch; }
.footer-col h5{ font-family:var(--font-mono); font-size:12.5px; letter-spacing:.1em; text-transform:uppercase; color:#fff; margin-bottom:18px; }
.footer-col li{ margin-bottom:12px; font-size:14.5px; }
.footer-col a:hover{ color:var(--accent); }
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:24px 0;
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px;
  font-size:13px;
}
@media (max-width:900px){ .footer-top{ grid-template-columns:1fr 1fr; } }
@media (max-width:600px){ .footer-top{ grid-template-columns:1fr; } }

/* ==========================================================================
   Sayfa içi hero (alt sayfalar için)
   ========================================================================== */
.page-hero{
  background:var(--ink); color:#fff;
  padding:70px 0 60px;
  border-bottom:1px solid var(--line-dark);
  position:relative; overflow:hidden;
}
.page-hero .eyebrow{ margin-bottom:14px; }
.page-hero h1{ font-size:clamp(30px,4vw,46px); }
.page-hero p{ color:var(--muted-dark); margin-top:16px; max-width:60ch; font-size:17px; }
.breadcrumb{ font-family:var(--font-mono); font-size:13px; color:var(--muted-dark); margin-bottom:22px; }
.breadcrumb a:hover{ color:var(--accent); }

/* ==========================================================================
   Form (İletişim)
   ========================================================================== */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.field{ display:flex; flex-direction:column; gap:8px; margin-bottom:20px; }
.field.full{ grid-column:1 / -1; }
label{ font-size:13.5px; font-weight:600; color:var(--text); }
input,textarea,select{
  font-family:var(--font-body);
  font-size:15px;
  padding:13px 15px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
}
input:focus,textarea:focus,select:focus{ outline:2px solid var(--accent); outline-offset:1px; border-color:var(--accent); }
textarea{ resize:vertical; min-height:130px; }
@media (max-width:640px){ .form-grid{ grid-template-columns:1fr; } }

.contact-info-list li{ display:flex; gap:16px; padding:18px 0; border-bottom:1px solid var(--line-dark); }
.contact-info-list li:last-child{ border-bottom:none; }
.contact-info-list .icon{ width:40px; height:40px; background:rgba(26,163,255,.14); color:var(--accent); display:flex; align-items:center; justify-content:center; flex:none; }
.contact-info-list b{ display:block; font-size:14.5px; color:#fff; margin-bottom:4px; }
.contact-info-list span, .contact-info-list a{ font-size:14px; color:var(--muted-dark); }

.map-frame{
  border:1px solid var(--line-dark);
  background:var(--ink-2);
  aspect-ratio:16/11;
  display:flex; align-items:center; justify-content:center;
  position:relative; overflow:hidden;
}
.map-frame .dotgrid{
  position:absolute; inset:0;
  background-image: radial-gradient(var(--line-dark) 1.4px, transparent 1.4px);
  background-size:20px 20px;
}
.map-frame .pin{ position:relative; text-align:center; color:var(--muted-dark); font-family:var(--font-mono); font-size:13px; }
.map-frame .pin svg{ width:34px; height:34px; color:var(--accent); margin-bottom:10px; }

/* ==========================================================================
   Yardımcılar
   ========================================================================== */
.mt-0{ margin-top:0 !important; }
.text-accent{ color:var(--accent); }
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }