/* ==========================================================================
   gebzeproje.com — Ana stil dosyası
   Tasarım dili: teknik çizim paftası / turkuaz
   ========================================================================== */

:root{
  /* Renkler */
  --ink:        #093C5D;   /* ana lacivert — beyaz üzeri 11.6:1 */
  --ink-2:      #0C4E76;
  --ink-3:      #14618E;
  --turkuaz:    #3B7597;   /* çelik mavi — çizgi, ikon, vurgu */
  --turkuaz-d:  #1E5476;   /* bağlantı ve dolu buton — beyaz yazı 8.1:1 */
  --turkuaz-dd: #093C5D;   /* hover */
  --turkuaz-l:  #6FD1D7;   /* koyu zemin vurgusu */
  --nane:       #5DF8D8;   /* imza vurgu — lacivert üzeri 8.8:1 */
  --turkuaz-xl: #E3F3F7;
  --mineral:    #F2F7FA;
  --paper:      #FFFFFF;
  --line:       #D4E3EC;
  --line-2:     #E9F1F6;
  --muted:      #41647D;   /* ikincil metin — beyaz üzeri 6.3:1 */
  --hata:       #B4231F;
  --wa:         #25D366;
  --wa-d:       #1A9E4E;
  --stamp:      #C8873A;

  /* Tipografi */
  --f-display: 'Archivo', 'Segoe UI', system-ui, sans-serif;
  --f-body:    'IBM Plex Sans', 'Segoe UI', system-ui, sans-serif;
  --f-mono:    'IBM Plex Mono', ui-monospace, 'Courier New', monospace;

  /* Ölçüler */
  --wrap: 1180px;
  --r: 3px;
  --shadow: 0 1px 2px rgba(9,60,93,.06), 0 8px 30px -12px rgba(9,60,93,.16);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth; -webkit-text-size-adjust:100%}

body{
  margin:0;
  font-family:var(--f-body);
  font-size:17px;
  line-height:1.68;
  color:var(--ink);
  background:var(--mineral);
  background-image:
    linear-gradient(var(--line-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-2) 1px, transparent 1px);
  background-size:56px 56px, 56px 56px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%; height:auto; display:block}
a{color:var(--turkuaz-d); text-decoration:none}
a:hover{text-decoration:underline}

h1,h2,h3,h4{
  font-family:var(--f-display);
  font-weight:700;
  letter-spacing:-.022em;
  line-height:1.14;
  margin:0 0 .5em;
  color:var(--ink);
}
h1{font-size:clamp(2rem, 1.35rem + 2.6vw, 3.35rem); font-weight:800}
h2{font-size:clamp(1.55rem, 1.15rem + 1.5vw, 2.3rem)}
h3{font-size:1.2rem}
p{margin:0 0 1.05em}

.wrap{width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:22px}

/* --- Pafta etiketi (mono) ------------------------------------------------ */
.kod{
  font-family:var(--f-mono);
  font-size:.76rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--turkuaz-d);
  display:inline-flex;
  align-items:center;
  gap:.6em;
}
.kod::before{
  content:"";
  width:26px; height:1px;
  background:var(--turkuaz);
  display:inline-block;
}
.kod--light{color:var(--turkuaz-l)}
.kod--light::before{background:var(--turkuaz-l)}

/* ==========================================================================
   ÜST BAR + MENÜ
   ========================================================================== */
.ustbar{
  background:var(--ink);
  color:#AFCFE2;
  font-family:var(--f-mono);
  font-size:.74rem;
  letter-spacing:.06em;
}
.ustbar .wrap{display:flex; justify-content:space-between; align-items:center; gap:14px; min-height:38px}
.ustbar a{color:#E4F2F8}
.ustbar .ub-sol{opacity:.8}
.ustbar .ub-sag{display:flex; gap:18px; align-items:center}
.ustbar .ub-sag a{display:inline-flex; align-items:center; gap:7px}
.ustbar svg{width:14px; height:14px; fill:var(--turkuaz-l)}

.site-header{
  position:sticky; top:0; z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(1.4) blur(8px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{display:flex; align-items:center; justify-content:space-between; gap:20px; min-height:74px}

.logo{display:flex; align-items:center; gap:11px; text-decoration:none}
.logo:hover{text-decoration:none}
.logo-mark{width:38px; height:38px; flex:none}
.logo-yazi{display:flex; flex-direction:column; line-height:1.05}
.logo-yazi b{font-family:var(--f-display); font-weight:800; font-size:1.12rem; letter-spacing:-.03em; color:var(--ink)}
.logo-yazi span{font-family:var(--f-mono); font-size:.6rem; letter-spacing:.19em; color:var(--muted); text-transform:uppercase}

.nav{display:flex; align-items:center; gap:4px}
.nav > li{position:relative; list-style:none}
.nav{margin:0; padding:0}
.nav a{
  display:block; padding:10px 13px;
  font-size:.94rem; font-weight:500; color:var(--ink);
  border-radius:var(--r);
}
.nav a:hover{background:var(--turkuaz-xl); color:var(--turkuaz-d); text-decoration:none}
.nav a.aktif{color:var(--turkuaz-d); box-shadow:inset 0 -2px 0 var(--turkuaz)}

.alt-menu{
  position:absolute; top:100%; left:0; min-width:262px;
  background:var(--paper); border:1px solid var(--line);
  border-radius:var(--r); box-shadow:var(--shadow);
  padding:8px; margin:0; list-style:none;
  opacity:0; visibility:hidden; transform:translateY(6px);
  transition:.16s ease;
}
.nav > li:hover .alt-menu,
.nav > li:focus-within .alt-menu{opacity:1; visibility:visible; transform:translateY(0)}
.alt-menu a{font-size:.9rem; padding:9px 12px; font-weight:400}
.alt-menu .grup{
  font-family:var(--f-mono); font-size:.64rem; letter-spacing:.16em;
  text-transform:uppercase; color:var(--muted);
  padding:10px 12px 4px; border-top:1px solid var(--line-2); margin-top:4px;
}
.alt-menu li:first-child .grup{border-top:0; margin-top:0; padding-top:4px}

.header-cta{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--turkuaz-d); color:#fff;
  padding:11px 18px; border-radius:var(--r);
  font-weight:600; font-size:.93rem; white-space:nowrap;
}
.header-cta:hover{background:var(--turkuaz-dd); text-decoration:none; color:#fff}
.header-cta svg{width:16px; height:16px; fill:currentColor}

.menu-btn{
  display:none; background:none; border:1px solid var(--line);
  border-radius:var(--r); width:44px; height:44px; cursor:pointer;
  align-items:center; justify-content:center;
}
.menu-btn span{display:block; width:19px; height:2px; background:var(--ink); position:relative}
.menu-btn span::before,.menu-btn span::after{content:""; position:absolute; left:0; width:19px; height:2px; background:var(--ink)}
.menu-btn span::before{top:-6px} .menu-btn span::after{top:6px}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative; overflow:hidden;
  background:var(--ink);
  color:#D3E6F0;
  padding:74px 0 82px;
}
.hero::before{
  content:""; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(111,209,215,.075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111,209,215,.075) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 90% 75% at 30% 40%, #000 40%, transparent 100%);
}
.hero::after{
  content:""; position:absolute; right:-14%; top:-30%;
  width:760px; height:760px; border-radius:50%;
  background:radial-gradient(circle, rgba(59,117,151,.55), transparent 62%);
  pointer-events:none;
}
.hero .wrap{position:relative; z-index:2}
.hero-grid{display:grid; grid-template-columns:1.08fr .92fr; gap:52px; align-items:center}
.hero h1{color:#fff; margin-top:14px}
.hero h1 em{font-style:normal; color:var(--turkuaz-l)}
.hero-ozet{font-size:1.09rem; color:#B7D3E3; max-width:56ch; margin-bottom:26px}

.hero-butonlar{display:flex; flex-wrap:wrap; gap:12px; margin-bottom:30px}
.btn{
  display:inline-flex; align-items:center; gap:9px;
  padding:14px 22px; border-radius:var(--r);
  font-family:var(--f-body); font-weight:600; font-size:.98rem;
  border:1px solid transparent; cursor:pointer; transition:.15s ease;
}
.btn svg{width:18px; height:18px; fill:currentColor; flex:none}
.btn:hover{text-decoration:none; transform:translateY(-1px)}
.btn-birincil{background:var(--turkuaz-d); color:#fff}
.btn-birincil:hover{background:var(--turkuaz-dd); color:#fff}
.btn-wa{background:var(--wa); color:#06331B}
.btn-wa:hover{background:#4AE287; color:#06331B}
.btn-hayalet{background:transparent; color:#fff; border-color:rgba(255,255,255,.28)}
.btn-hayalet:hover{border-color:var(--turkuaz-l); color:var(--turkuaz-l)}
.btn-koyu{background:var(--ink); color:#fff}
.btn-koyu:hover{background:var(--ink-2); color:#fff}
.btn-genis{width:100%; justify-content:center}

.hero-rozet{display:flex; flex-wrap:wrap; gap:8px 22px; font-family:var(--f-mono); font-size:.75rem; letter-spacing:.05em; color:#93B9CE}
.hero-rozet span{display:inline-flex; align-items:center; gap:7px}
.hero-rozet span::before{content:""; width:6px; height:6px; background:var(--turkuaz-l); border-radius:50%}

/* Katman görseli (imza öğe) */
.katman-kutu{position:relative}
.katman-kutu svg{width:100%; height:auto; overflow:visible}

/* ==========================================================================
   BÖLÜMLER
   ========================================================================== */
.bolum{padding:76px 0}
.bolum--dar{padding:56px 0}
.bolum--paper{background:var(--paper); border-block:1px solid var(--line)}
.bolum--koyu{background:var(--ink); color:#CFE4EF}
.bolum--koyu h2,.bolum--koyu h3{color:#fff}
.bolum--mineral{background:var(--mineral)}

.bolum-bas{max-width:70ch; margin-bottom:38px}
.bolum-bas p{color:var(--muted); font-size:1.04rem}
.bolum--koyu .bolum-bas p{color:#9FC2D6}
.bolum-bas h2{margin-top:12px}

/* Kart ızgarası */
.izgara{display:grid; gap:18px}
.izgara-2{grid-template-columns:repeat(2,1fr)}
.izgara-3{grid-template-columns:repeat(3,1fr)}
.izgara-4{grid-template-columns:repeat(4,1fr)}

.kart{
  position:relative;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:26px 24px 24px;
  transition:.18s ease;
  display:flex; flex-direction:column;
}
.kart::after{ /* pafta köşe işareti */
  content:""; position:absolute; right:12px; top:12px;
  width:11px; height:11px;
  border-top:1px solid var(--line); border-right:1px solid var(--line);
  transition:.18s ease;
}
.kart:hover{border-color:var(--turkuaz); transform:translateY(-2px); box-shadow:var(--shadow)}
.kart:hover::after{border-color:var(--turkuaz); width:17px; height:17px}
.kart h3{margin-bottom:.4em; font-size:1.13rem}
.kart p{color:var(--muted); font-size:.95rem; margin-bottom:1em}
.kart .kart-link{margin-top:auto; font-family:var(--f-mono); font-size:.74rem; letter-spacing:.13em; text-transform:uppercase; color:var(--turkuaz-d); display:inline-flex; align-items:center; gap:8px}
.kart .kart-link::after{content:"→"; transition:.18s ease}
.kart:hover .kart-link::after{transform:translateX(4px)}
.kart-ikon{width:42px; height:42px; margin-bottom:16px}
.kart-ikon svg{width:100%; height:100%}

a.kart{color:inherit}
a.kart:hover{text-decoration:none}

/* Süreç adımları — gerçek bir sıra olduğu için numaralı */
.surec{counter-reset:adim; display:grid; gap:0; margin-top:8px}
.surec li{
  list-style:none; counter-increment:adim;
  display:grid; grid-template-columns:64px 1fr; gap:22px;
  padding:22px 0; border-top:1px solid var(--line);
}
.surec li:last-child{border-bottom:1px solid var(--line)}
.surec li::before{
  content:counter(adim,decimal-leading-zero);
  font-family:var(--f-mono); font-size:1.5rem; font-weight:500;
  color:var(--turkuaz); line-height:1;
}
.surec h3{font-size:1.05rem; margin-bottom:.25em}
.surec p{color:var(--muted); font-size:.95rem; margin:0}
.bolum--koyu .surec li{border-color:rgba(255,255,255,.12)}
.bolum--koyu .surec p{color:#9FC2D6}

/* Listeler */
.liste{list-style:none; padding:0; margin:0 0 1.2em}
.liste li{position:relative; padding-left:28px; margin-bottom:11px; font-size:.98rem}
.liste li::before{
  content:""; position:absolute; left:0; top:.55em;
  width:11px; height:2px; background:var(--turkuaz);
}
.liste--tik li::before{
  content:"✓"; font-family:var(--f-mono); font-size:.85rem; color:var(--turkuaz);
  background:none; width:auto; height:auto; top:0; font-weight:700;
}

/* İçerik metni */
.metin{max-width:74ch}
.metin h2{margin-top:1.6em}
.metin h2:first-child{margin-top:0}
.metin h3{margin-top:1.5em; font-size:1.12rem}

/* İki sütun içerik */
.ikili{display:grid; grid-template-columns:1.35fr .65fr; gap:52px; align-items:start}

/* Yan kutu */
.yan-kutu{
  position:sticky; top:100px;
  background:var(--ink); color:#CFE4EF;
  border-radius:var(--r); padding:28px 24px;
}
.yan-kutu h3{color:#fff; font-size:1.08rem}
.yan-kutu p{font-size:.92rem; color:#9FC2D6}
.yan-kutu .btn{width:100%; justify-content:center; margin-bottom:9px}
.yan-kutu-tel{
  font-family:var(--f-mono); font-size:1.24rem; color:var(--turkuaz-l);
  display:block; letter-spacing:-.01em; margin:6px 0 14px;
}
.yan-kutu-tel:hover{color:#fff}

/* SSS */
.sss{border-top:1px solid var(--line)}
.sss details{border-bottom:1px solid var(--line)}
.sss summary{
  cursor:pointer; padding:19px 40px 19px 0; position:relative;
  font-family:var(--f-display); font-weight:600; font-size:1.03rem;
  list-style:none;
}
.sss summary::-webkit-details-marker{display:none}
.sss summary::after{
  content:"+"; position:absolute; right:6px; top:16px;
  font-family:var(--f-mono); font-size:1.35rem; color:var(--turkuaz); font-weight:400;
}
.sss details[open] summary::after{content:"–"}
.sss details p{color:var(--muted); font-size:.97rem; padding-bottom:6px; max-width:80ch}

/* Rakamlar */
.rakamlar{display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:var(--r); overflow:hidden}
.rakam{background:var(--paper); padding:26px 22px}
.rakam b{display:block; font-family:var(--f-display); font-size:2.1rem; font-weight:800; color:var(--turkuaz-d); letter-spacing:-.03em; line-height:1}
.rakam span{font-family:var(--f-mono); font-size:.75rem; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); display:block; margin-top:9px}

/* Bölge etiketleri */
.bolgeler{display:flex; flex-wrap:wrap; gap:9px; margin-top:22px}
.bolgeler span{
  font-family:var(--f-mono); font-size:.76rem; letter-spacing:.06em;
  border:1px solid var(--line); background:var(--paper);
  padding:7px 13px; border-radius:100px; color:var(--muted);
}
.bolum--koyu .bolgeler span{background:rgba(255,255,255,.05); border-color:rgba(255,255,255,.14); color:#9FC2D6}

/* Görsel şeridi */
.gorsel{
  border-radius:var(--r); overflow:hidden; border:1px solid var(--line);
  background:var(--turkuaz-xl) center/cover no-repeat;
  min-height:280px;
}

/* CTA bandı */
.cta-band{
  background:linear-gradient(115deg, var(--ink) 0%, var(--ink-3) 100%);
  color:#fff; padding:56px 0; position:relative; overflow:hidden;
}
.cta-band::before{
  content:""; position:absolute; inset:0;
  background-image:linear-gradient(90deg, rgba(111,209,215,.09) 1px, transparent 1px);
  background-size:34px 100%;
}
.cta-band .wrap{position:relative; display:grid; grid-template-columns:1.25fr .75fr; gap:40px; align-items:center}
.cta-band h2{color:#fff; margin-bottom:.35em}
.cta-band p{color:#AFCFE2; margin-bottom:0}
.cta-band .btn-grup{display:flex; flex-direction:column; gap:10px}

/* Breadcrumb */
.iz{font-family:var(--f-mono); font-size:.73rem; letter-spacing:.08em; color:var(--muted); padding:16px 0 0}
.iz a{color:var(--muted)}
.iz a:hover{color:var(--turkuaz-d)}
.hero .iz{color:#93B9CE; padding:0}
.hero .iz a{color:#93B9CE}
.hero .iz a:hover{color:var(--turkuaz-l)}

/* ==========================================================================
   FORM
   ========================================================================== */
.form-kutu{
  background:var(--paper); border:1px solid var(--line);
  border-radius:var(--r); padding:30px 28px;
}
.form-satir{display:grid; grid-template-columns:1fr 1fr; gap:14px}
.alan{margin-bottom:14px; display:block}
.alan label{
  display:block; font-family:var(--f-mono); font-size:.74rem;
  letter-spacing:.12em; text-transform:uppercase; color:var(--muted); margin-bottom:6px;
}
.alan input,.alan select,.alan textarea{
  width:100%; font-family:var(--f-body); font-size:1rem; color:var(--ink);
  background:var(--mineral); border:1px solid var(--line);
  border-radius:var(--r); padding:12px 14px;
}
.alan textarea{min-height:118px; resize:vertical}
.alan input:focus,.alan select:focus,.alan textarea:focus{
  outline:none; border-color:var(--turkuaz); background:var(--paper);
  box-shadow:0 0 0 3px rgba(30,84,118,.16);
}
.onay{display:flex; gap:10px; align-items:flex-start; font-size:.82rem; color:var(--muted); margin:4px 0 16px}
.onay input{margin-top:4px; accent-color:var(--turkuaz)}
.form-not{font-size:.8rem; color:var(--muted); margin:12px 0 0; text-align:center}

/* ==========================================================================
   YÜZEN İLETİŞİM (her sayfada)
   ========================================================================== */
.yuzen{
  position:fixed; right:20px; bottom:20px; z-index:80;
  display:flex; flex-direction:column-reverse; gap:11px;
}
.yuzen a{
  width:54px; height:54px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 22px -6px rgba(9,60,93,.42);
  transition:.16s ease; position:relative;
}
.yuzen a:hover{transform:scale(1.07); text-decoration:none}
.yuzen svg{width:25px; height:25px; fill:#fff}
.yuzen .y-wa{background:var(--wa-d)}
.yuzen .y-tel{background:var(--turkuaz-d)}
.yuzen .y-mail{background:var(--ink)}
.yuzen a::before{
  content:attr(data-etiket);
  position:absolute; right:64px; top:50%; transform:translateY(-50%);
  background:var(--ink); color:#fff; font-family:var(--f-mono); font-size:.7rem;
  letter-spacing:.08em; padding:6px 11px; border-radius:var(--r);
  white-space:nowrap; opacity:0; pointer-events:none; transition:.16s ease;
}
.yuzen a:hover::before{opacity:1}
.yuzen .nabiz{position:absolute; inset:0; border-radius:50%; border:2px solid var(--wa-d); animation:nabiz 2.6s ease-out infinite}
@keyframes nabiz{0%{transform:scale(1); opacity:.7} 70%{transform:scale(1.5); opacity:0} 100%{opacity:0}}

/* Mobil alt bar */
.mobil-bar{
  display:none; position:fixed; left:0; right:0; bottom:0; z-index:80;
  background:var(--paper); border-top:1px solid var(--line);
  box-shadow:0 -4px 18px -8px rgba(9,60,93,.26);
}
.mobil-bar a{
  flex:1; display:flex; flex-direction:column; align-items:center; gap:3px;
  padding:9px 4px calc(9px + env(safe-area-inset-bottom));
  font-family:var(--f-mono); font-size:.68rem; letter-spacing:.08em;
  text-transform:uppercase; color:var(--ink);
}
.mobil-bar a:hover{text-decoration:none}
.mobil-bar svg{width:22px; height:22px; fill:var(--turkuaz-d)}
.mobil-bar a.mb-wa svg{fill:var(--wa-d)}
.mobil-bar a + a{border-left:1px solid var(--line-2)}

/* ==========================================================================
   POP-UP
   ========================================================================== */
.perde{
  position:fixed; inset:0; z-index:100;
  background:rgba(7,42,49,.62);
  backdrop-filter:blur(3px);
  display:flex; align-items:center; justify-content:center; padding:20px;
  opacity:0; visibility:hidden; transition:.22s ease;
}
.perde.acik{opacity:1; visibility:visible}
.popup{
  background:var(--paper); border-radius:var(--r);
  width:100%; max-width:470px; max-height:92vh; overflow-y:auto;
  padding:34px 30px 28px; position:relative;
  transform:translateY(14px) scale(.985); transition:.22s ease;
  border-top:4px solid var(--turkuaz);
}
.perde.acik .popup{transform:none}
.popup-kapat{
  position:absolute; right:12px; top:12px; width:34px; height:34px;
  background:var(--mineral); border:1px solid var(--line); border-radius:var(--r);
  cursor:pointer; font-size:1.15rem; line-height:1; color:var(--muted);
}
.popup-kapat:hover{color:var(--ink); border-color:var(--turkuaz)}
.popup h3{font-size:1.35rem; margin-bottom:.3em}
.popup > p{color:var(--muted); font-size:.94rem}
.popup-kanal{display:grid; grid-template-columns:1fr 1fr; gap:10px; margin:18px 0 16px}
.popup-ayrac{
  display:flex; align-items:center; gap:12px; margin:18px 0 14px;
  font-family:var(--f-mono); font-size:.68rem; letter-spacing:.16em;
  text-transform:uppercase; color:var(--muted);
}
.popup-ayrac::before,.popup-ayrac::after{content:""; height:1px; background:var(--line); flex:1}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer{background:var(--ink); color:#9FC2D6; padding:58px 0 0; font-size:.93rem}
.footer a{color:#CFE4EF}
.footer a:hover{color:var(--turkuaz-l)}
.footer-grid{display:grid; grid-template-columns:1.5fr 1fr 1fr 1.15fr; gap:38px; padding-bottom:44px}
.footer h3{
  font-family:var(--f-mono); font-size:.7rem; letter-spacing:.16em;
  text-transform:uppercase; color:var(--turkuaz-l); margin:0 0 16px; font-weight:500;
}
.footer ul{list-style:none; margin:0; padding:0}
.footer li{margin-bottom:9px}
.footer .logo-yazi b{color:#fff}
.footer .logo-yazi span{color:#93B3C9}
.footer-ozet{margin-top:16px; max-width:38ch; font-size:.9rem}
.footer-iletisim li{display:flex; gap:10px; align-items:flex-start}
.footer-iletisim svg{width:15px; height:15px; fill:var(--turkuaz-l); margin-top:5px; flex:none}
.footer-alt{
  border-top:1px solid rgba(255,255,255,.11); padding:18px 0;
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
  font-family:var(--f-mono); font-size:.71rem; letter-spacing:.06em; color:#93B3C9;
}
.footer-alt a{color:#93B3C9}

/* ==========================================================================
   DUYARLI
   ========================================================================== */
@media (max-width:1000px){
  .hero-grid{grid-template-columns:1fr; gap:38px}
  .ikili{grid-template-columns:1fr; gap:34px}
  .yan-kutu{position:static}
  .izgara-4{grid-template-columns:repeat(2,1fr)}
  .izgara-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr; gap:30px}
  .cta-band .wrap{grid-template-columns:1fr}
  .rakamlar{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  body{font-size:16.5px}
  .menu-btn{display:flex}
  .header-cta{display:none}
  .nav{
    position:fixed; inset:74px 0 auto; flex-direction:column; align-items:stretch;
    background:var(--paper); border-bottom:1px solid var(--line);
    padding:12px 18px 24px; gap:0; max-height:calc(100vh - 74px); overflow-y:auto;
    display:none;
  }
  .nav.acik{display:flex}
  .nav a{padding:13px 6px; border-bottom:1px solid var(--line-2); border-radius:0}
  .alt-menu{
    position:static; opacity:1; visibility:visible; transform:none;
    border:0; box-shadow:none; padding:0 0 0 14px; margin:0;
  }
  .alt-menu a{padding:11px 6px; color:var(--muted)}
  .ustbar .ub-sol{display:none}
  .ustbar .wrap{justify-content:center}
  .yuzen{display:none}
  .mobil-bar{display:flex}
  body{padding-bottom:60px}
  .bolum{padding:54px 0}
  .hero{padding:48px 0 58px}
  .izgara-2,.izgara-3,.izgara-4{grid-template-columns:1fr}
  .form-satir{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .surec li{grid-template-columns:44px 1fr; gap:14px}
  .popup-kanal{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important; transition-duration:.001ms !important; scroll-behavior:auto !important}
}

:focus-visible{outline:3px solid var(--turkuaz-l); outline-offset:2px; border-radius:2px}

@media print{
  .yuzen,.mobil-bar,.perde,.site-header,.ustbar{display:none !important}
}

/* ==========================================================================
   ERİŞİLEBİLİRLİK + KALİTE EKLERİ
   ========================================================================== */

/* İçeriğe atla — klavye kullanıcıları için */
.atla{
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--ink); color:#fff; padding:12px 18px;
  font-family:var(--f-mono); font-size:.8rem; border-radius:0 0 var(--r) 0;
}
.atla:focus{left:0; text-decoration:none}

/* Dokunma gecikmesini kaldır, tıklanabilirliği belli et */
a,button,summary,input[type="submit"],label{touch-action:manipulation}
button,summary,.kart,label{cursor:pointer}

/* Basma geri bildirimi */
.btn:active{transform:translateY(0) scale(.985)}
.yuzen a:active{transform:scale(.96)}
.mobil-bar a:active{background:var(--turkuaz-xl)}

/* Dokunma hedefi en az 44px */
.mobil-bar a{min-height:52px; justify-content:center}
.yuzen a{min-width:54px; min-height:54px}
.nav a{min-height:44px; display:flex; align-items:center}

/* Form: hata ve yükleniyor durumları */
.alan .ipucu{font-size:.78rem; color:var(--muted); margin-top:5px; display:block}
.alan .hata-mesaji{
  display:none; font-size:.82rem; color:var(--hata); margin-top:6px;
  align-items:center; gap:6px;
}
.alan .hata-mesaji::before{content:"!"; font-family:var(--f-mono); font-weight:700;
  width:16px; height:16px; border-radius:50%; background:var(--hata); color:#fff;
  display:inline-flex; align-items:center; justify-content:center; font-size:.7rem; flex:none}
.alan.hatali input,.alan.hatali select,.alan.hatali textarea{border-color:var(--hata); background:#FFF6F5}
.alan.hatali .hata-mesaji{display:flex}
.alan label .zorunlu{color:var(--hata); margin-left:3px}

.btn[aria-busy="true"]{opacity:.72; pointer-events:none}
.btn .spinner{
  width:16px; height:16px; border-radius:50%; display:none;
  border:2px solid rgba(255,255,255,.35); border-top-color:#fff;
  animation:donuyor .7s linear infinite;
}
.btn[aria-busy="true"] .spinner{display:inline-block}
.btn[aria-busy="true"] .btn-ikon{display:none}
@keyframes donuyor{to{transform:rotate(360deg)}}

/* Görsellerde yer ayır — kayma (CLS) olmasın */
.gorsel{aspect-ratio:4/3}
.gorsel--genis{aspect-ratio:16/9; min-height:0}
.gorsel img{width:100%; height:100%; object-fit:cover}
.katman-kutu svg{aspect-ratio:1/.86}

/* Rakamlarda tabular figürler */
.rakam b,.yan-kutu-tel,.ustbar{font-variant-numeric:tabular-nums}

/* Pop-up çıkışı girişten hızlı olsun */
.perde{transition:opacity .16s ease, visibility .16s ease}
.perde.acik{transition:opacity .26s ease, visibility .26s ease}

/* Metin butonu (form alternatifi) */
.metin-btn{
  background:none; border:0; padding:0; font:inherit; font-size:.82rem;
  color:var(--turkuaz-d); text-decoration:underline; cursor:pointer;
}
.metin-btn:hover{color:var(--turkuaz-dd)}
.onay label{font-family:var(--f-body); font-size:.82rem; letter-spacing:0; text-transform:none; color:var(--muted); margin:0; line-height:1.5}
.form-kutu h3{margin-bottom:1em}


/* Dokunma hedeflerini büyüt (mobil) */
.ustbar .ub-sag a{padding:9px 2px; min-height:38px}
.footer li a{display:inline-block; padding:7px 0; min-height:34px}
.footer-iletisim li a{padding:5px 0}
.footer-alt a{display:inline-block; padding:8px 2px}
.iz a{display:inline-block; padding:6px 0}
@media (max-width:820px){
  .footer-alt{flex-direction:column; gap:2px}
  .footer li{margin-bottom:2px}
}

/* Spam tuzağı — ekranda görünmez, ekran okuyucudan da gizli */
.tuzak{position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden}

/* ==========================================================================
   İÇERİK BİLEŞENLERİ — uzun metin, GEO/AEO ve Ads açılış sayfası deneyimi
   ========================================================================== */

/* Nane vurgulu buton — koyu zeminde ana eylem */
.btn-nane{background:var(--nane); color:var(--ink)}
.btn-nane:hover{background:#8DFCE3; color:var(--ink)}

/* Güven şeridi — hero'nun hemen altı (Ads açılış sayfası sinyali) */
.guven{background:var(--paper); border-bottom:1px solid var(--line)}
.guven .wrap{display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line)}
.guven-oge{background:var(--paper); padding:20px 18px; display:flex; gap:13px; align-items:flex-start}
.guven-oge svg{width:22px; height:22px; flex:none; fill:none; stroke:var(--turkuaz-d); stroke-width:1.8;
  stroke-linecap:round; stroke-linejoin:round; margin-top:2px}
.guven-oge b{display:block; font-family:var(--f-display); font-size:.97rem; line-height:1.3; margin-bottom:3px}
.guven-oge span{font-size:.85rem; color:var(--muted); line-height:1.45}

/* Hızlı cevap kutusu — arama motorları ve yapay zekâ asistanları için özet */
.hizli-cevap{
  background:var(--turkuaz-xl); border-left:4px solid var(--turkuaz-d);
  border-radius:0 var(--r) var(--r) 0; padding:22px 24px; margin:0 0 30px;
}
.hizli-cevap .kod{margin-bottom:8px}
.hizli-cevap p{margin:0; font-size:1.03rem; color:var(--ink); line-height:1.6}
.hizli-cevap p + p{margin-top:.7em}

/* Sayfa içi gezinme */
.icindekiler{
  background:var(--paper); border:1px solid var(--line); border-radius:var(--r);
  padding:20px 22px; margin:0 0 32px;
}
.icindekiler h2{font-size:.78rem; font-family:var(--f-mono); letter-spacing:.14em;
  text-transform:uppercase; color:var(--muted); margin:0 0 12px; font-weight:500}
.icindekiler ol{margin:0; padding:0; list-style:none; counter-reset:ic;
  columns:2; column-gap:28px}
.icindekiler li{counter-increment:ic; margin-bottom:8px; break-inside:avoid}
.icindekiler a{font-size:.93rem; color:var(--ink); display:inline-flex; gap:9px}
.icindekiler a::before{content:counter(ic,decimal-leading-zero);
  font-family:var(--f-mono); font-size:.76rem; color:var(--turkuaz); flex:none; padding-top:2px}
.icindekiler a:hover{color:var(--turkuaz-d)}

/* Uzun metin ritmi */
.metin h2{scroll-margin-top:100px; margin-top:2.1em; font-size:clamp(1.32rem,1.1rem+.7vw,1.7rem)}
.metin h2:first-child{margin-top:0}
.metin h3{margin-top:1.7em}
.metin p{margin-bottom:1.15em}
.metin > p:first-of-type{font-size:1.06rem}

/* Görsel + açıklama */
.figur{margin:30px 0; border:1px solid var(--line); border-radius:var(--r); overflow:hidden; background:var(--paper)}
.figur .gorsel{border:0; border-radius:0}
.figur figcaption{
  padding:12px 16px; font-size:.83rem; color:var(--muted);
  border-top:1px solid var(--line-2); background:var(--paper);
}

/* Öz kutusu — bölüm sonu çıkarım */
.oz{
  border:1px solid var(--line); border-radius:var(--r); background:var(--paper);
  padding:20px 22px; margin:26px 0; display:flex; gap:14px; align-items:flex-start;
}
.oz::before{
  content:""; width:4px; align-self:stretch; background:var(--turkuaz-l); border-radius:2px; flex:none;
}
.oz p{margin:0; font-size:.96rem; color:var(--ink)}
.oz b{font-family:var(--f-display)}

/* Tablo */
.tablo-sar{overflow-x:auto; margin:24px 0; border:1px solid var(--line); border-radius:var(--r)}
.tablo{width:100%; border-collapse:collapse; font-size:.93rem; background:var(--paper); min-width:520px}
.tablo th,.tablo td{padding:13px 16px; text-align:left; border-bottom:1px solid var(--line-2); vertical-align:top}
.tablo thead th{
  background:var(--ink); color:#fff; font-family:var(--f-mono); font-size:.73rem;
  letter-spacing:.1em; text-transform:uppercase; font-weight:500; border-bottom:0;
}
.tablo tbody tr:last-child td{border-bottom:0}
.tablo tbody tr:hover{background:var(--mineral)}
.tablo td b{color:var(--ink)}

/* Anahtar kelime / bölge bağlantı bulutu */
.ic-baglanti{
  border-top:1px solid var(--line); margin-top:36px; padding-top:22px;
  font-size:.9rem; color:var(--muted);
}
.ic-baglanti b{display:block; font-family:var(--f-mono); font-size:.72rem; letter-spacing:.13em;
  text-transform:uppercase; color:var(--muted); margin-bottom:10px; font-weight:500}
.ic-baglanti a{color:var(--turkuaz-d)}

@media (max-width:1000px){ .guven .wrap{grid-template-columns:repeat(2,1fr)} }
@media (max-width:820px){
  .icindekiler ol{columns:1}
  .guven .wrap{grid-template-columns:1fr}
  .metin > p:first-of-type{font-size:1.02rem}
}