/* ========== 1) TEMEL AYARLAR & DEĞİŞKENLER ========== */
:root{
  --bg:#0b1220;           /* Arka plan (koyu lacivert) */
  --surface:#0f172a;      /* Kart ve header zemin */
  --surface-2:#111827;    /* Hover/daha koyu yüzey */
  --ink:#e5e7eb;          /* Ana metin */
  --muted:#94a3b8;        /* İkincil metin */
  --brand:#f97316;        /* Turuncu marka rengi */
  --ok:#10b981;           /* Başarı/CTA */
  --line:#1f2937;         /* İnce sınır çizgileri */
  --shadow: 0 10px 30px rgba(0,0,0,.25);
  --r:16px;               /* Kart radius */
  --max:1200px;           /* Container genişliği */
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;line-height:1.5}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{padding-left:1.2rem}
.container{max-width:var(--max);margin:auto;padding:0 16px}
.hidden{display:none !important}

/* Erişilebilir odak halkaları */
:focus-visible{outline:2px dashed var(--brand);outline-offset:3px}

/* ========== 2) BUTONLAR ========== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:999px;border:2px solid transparent;
  background:var(--brand);color:#2b1706;font-weight:800;letter-spacing:.2px;
  box-shadow:0 3px 0 #b45309,0 8px 24px rgba(249,115,22,.25);
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease;
  will-change:transform
}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 0 #b45309,0 16px 28px rgba(249,115,22,.35)}
.btn:active{transform:translateY(0);box-shadow:0 2px 0 #b45309,0 10px 20px rgba(249,115,22,.25)}
.btn.out{
  background:transparent;border-color:var(--brand);color:var(--ink);
  box-shadow:none
}
.btn.out:hover{background:#1a243a}

/* Küçük/ikincil buton varyantları (opsiyonel) */
.btn.sm{padding:8px 12px;font-weight:700}

/* ========== 3) ÜSTBAR / MENÜ ========== */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(15,23,42,.9);
  border-bottom:1px solid var(--line);backdrop-filter:blur(8px)
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.3px}
.logo .mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#f97316,#fb923c);box-shadow:0 10px 24px rgba(249,115,22,.4)}
.main-nav ul{display:flex;gap:8px;list-style:none;margin:0;padding:0}
.main-nav a{display:inline-block;padding:8px 12px;border-radius:10px;color:var(--ink)}
.main-nav a:hover{background:#0b1426}
.main-nav a.active{background:#0b1426;border:1px solid #253048}
.ham{display:none;border:0;background:transparent;color:#fff;font-size:26px;line-height:1}

/* ========== 4) HERO ========== */
.hero{position:relative;border-radius:var(--r);overflow:hidden;margin:16px 0}
.hero picture,.hero img{width:100%;height:min(64vh,560px);object-fit:cover;display:block;filter:brightness(.6) saturate(1.05)}
.hero .inner{
  position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:24px
}
.hero h1{font-size:clamp(28px,3.6vw,46px);margin:8px 0}
.hero p{max-width:820px;margin:0 auto 12px;color:var(--muted)}
.badge{
  display:inline-block;background:#1a243a;border:1px solid #23314f;color:#fcd34d;
  padding:6px 10px;border-radius:999px;font-weight:800;letter-spacing:.3px
}

/* ========== 5) SAYFA BÖLÜMLERİ, KARTLAR, GRID ========== */
.section{padding:40px 0}
.page h1{margin:0 0 6px}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.card{
  grid-column:span 12;background:linear-gradient(180deg,var(--surface),#0b1324);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease
}
.card:hover{transform:translateY(-2px);border-color:#23314f;box-shadow:0 14px 36px rgba(0,0,0,.35)}
.card .thumb{aspect-ratio:16/10;object-fit:cover}
.card h3{margin:12px 12px 4px;font-size:20px}
.card p{margin:0 12px 14px;color:#cbd5e1}

.feature-list{display:grid;gap:8px;margin-top:10px}
.feature-list li{margin-left:16px}
.feature-list>div{background:#0d162b;border:1px solid #1c2740;border-radius:12px;padding:10px 12px}

/* Hizmet kartlarını 2-3 sütuna kır */
@media (min-width:720px){
  .card.sm{grid-column:span 6}
  .grid>.card, .grid>a.card{grid-column:span 6}
}
@media (min-width:1024px){
  .grid>.card, .grid>a.card{grid-column:span 3}
  .card.wide{grid-column:span 8}
  .card.full{grid-column:span 12}
}

/* ========== 6) CTA BANT ========== */
.cta-band{
  margin:24px 0;background:linear-gradient(90deg,#0e1932,#0a1226);
  border:1px solid #1c2740;border-radius:20px;box-shadow:var(--shadow)
}
.cta-band .container{padding:24px;text-align:center}
.cta-band h2{margin:0 0 8px}
.cta-band p{margin:0}

/* ========== 7) FOOTER ========== */
.site-footer{margin-top:28px;border-top:1px solid var(--line);background:#0c152a}
.footer{display:grid;gap:16px;padding:24px 0}
.footer h4{margin:0 0 8px}
.footer ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.foot-note{
  border-top:1px solid var(--line);text-align:center;color:var(--muted);
  padding:12px 0;background:#0a1121
}

/* ========== 8) FAQ (details/summary) ========== */
details{
  background:#0d162b;border:1px solid #1c2740;border-radius:12px;
  padding:10px 12px;margin:10px 0;transition:border-color .2s ease,background .2s ease
}
details[open]{background:#0e1932;border-color:#243453}
summary{cursor:pointer;font-weight:700}
summary::-webkit-details-marker{display:none}

/* ========== 9) İLETİŞİM FORMU ========== */
.contact-form{
  display:grid;gap:12px;background:#0d162b;border:1px solid #1c2740;border-radius:16px;padding:16px
}
label{font-size:14px;color:#cbd5e1}
input,textarea{
  width:100%;padding:10px 12px;border-radius:12px;border:1px solid #22304b;
  background:#0a1224;color:var(--ink);outline:none;transition:border-color .2s ease,box-shadow .2s ease
}
input::placeholder,textarea::placeholder{color:#6b7280}
input:focus,textarea:focus{border-color:#2b3c63;box-shadow:0 0 0 3px rgba(43,60,99,.35)}
button[type=submit].btn{justify-self:start}

/* ========== 10) WHATSAPP CANLI DESTEK FAB ========== */
.whatsapp-fab{
  position:fixed;left:16px;bottom:16px;z-index:60
}
.whatsapp-fab a{
  display:inline-flex;align-items:center;gap:8px;font-weight:800;
  padding:10px 14px;border-radius:999px;background:#22c55e;color:#03230f;
  border:2px solid #15803d;box-shadow:0 8px 24px rgba(34,197,94,.35);
  transition:transform .15s ease,box-shadow .2s ease
}
.whatsapp-fab a:hover{transform:translateY(-1px);box-shadow:0 12px 30px rgba(34,197,94,.45)}
.whatsapp-fab svg{display:block}

/* ========== 11) TABLO, RESİM, KÜÇÜK YARDIMCI SINIFLAR ========== */
table{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:12px;overflow:hidden}
th,td{padding:10px;border-bottom:1px solid var(--line)}
tr:nth-child(even){background:#0d162b}
blockquote{margin:12px 0;padding:10px 12px;border-left:3px solid #334155;background:#0d162b;border-radius:8px}
hr{border:0;border-top:1px solid var(--line);margin:16px 0}

/* ========== 12) RESPONSIVE MENÜ ========== */
@media (max-width:960px){
  .main-nav ul{
    position:absolute;right:16px;top:62px;flex-direction:column;background:var(--surface);
    padding:10px;border:1px solid var(--line);border-radius:12px;display:none;min-width:210px
  }
  .main-nav ul.open{display:flex}
  .ham{display:inline-block}
  .cta{display:none}
}
/* Büyük ekranlarda inline menü */
@media (min-width:961px){
  .main-nav ul{position:static;display:flex;background:transparent;border:0;padding:0}
}

/* ========== 13) BAŞLIKLAR & METİN ========== */
h1,h2,h3,h4{line-height:1.2}
h2{font-size:clamp(22px,2.6vw,32px);margin:0 0 10px}
p{color:#cfd8e3}

/* ========== 14) KART BAŞLIK GÖRSEL YÜKLEME (LQIP için) ========== */
.thumb[loading="lazy"]{filter:saturate(1.03)}
.thumb{transition:filter .3s ease,transform .2s ease}
.card:hover .thumb{transform:scale(1.01)}

/* ========== 15) YAZDIRMA (Print) ========== */
@media print{
  .site-header,.site-footer,.whatsapp-fab,.cta-band{display:none !important}
  a[href]:after{content:" (" attr(href) ")";font-size:10px;color:#64748b}
  body{background:#fff;color:#000}
}

/* ========== 16) LIGHT THEME (opsiyonel) ========== */
/* Eğer ileride açık tema istersek body.light ekleriz */
body.light{--bg:#f8fafc;--surface:#ffffff;--surface-2:#f1f5f9;--ink:#111827;--muted:#475569;--line:#e2e8f0}

/* ========== 17) SEO BLOKLARI BAŞLIK ARALIKLARI ========== */
#seo-metin h2,#seo-hizmet-metin h2,#seo-mutfak h2,#seo-banyo h2,#seo-ofis h2,#seo-insaat h2,#seo-blog h2,#seo-iletisim h2{
  margin-top:0
}

/* ========== 18) AKTİF NAV ve BREADCRUMB İPUÇLARI ========== */
.main-nav a.active{position:relative}
.main-nav a.active:after{
  content:"";position:absolute;left:10px;right:10px;bottom:4px;height:2px;
  background:linear-gradient(90deg,#fb923c,#f97316)
}

/* ========== 19) ANİMASYONLAR (küçük dokunuşlar) ========== */
@keyframes fadeInUp{
  from{opacity:0;transform:translateY(8px)}
  to{opacity:1;transform:translateY(0)}
}
.section,.card,.hero .inner{animation:fadeInUp .4s ease both}

/* ========== 20) YARDIMCI GRID SINIFLARI (isteğe bağlı) ========== */
.col-12{grid-column:span 12}
@media (min-width:720px){.col-6{grid-column:span 6}}
@media (min-width:1024px){.col-4{grid-column:span 4}}