/* =========================================
   A.V. SIHHI TESISAT — Ana Stil Dosyası
   =========================================
   Bölümler:
   1. Değişkenler & Reset
   2. Custom Cursor
   3. Header & Nav
   4. Hero
   5. Bölge Ticker
   6. Reveal Animasyonu
   7. Neden Biz
   8. Hizmetler & Kartlar
   9. Projeler
   10. SSS
   11. İletişim & Harita
   12. Footer
   13. Responsive
========================================= */

/* ── 1. DEĞİŞKENLER & RESET ── */
:root {
  --fire: #e8420a;
  --fire2: #ff5722;
  --ice: #1e9fd4;
  --ice2: #38bdf8;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'DM Sans', sans-serif; background: #fff; color: #1a1a1a; cursor: none; overflow-x: hidden; }

/* ── 2. CUSTOM CURSOR ── */
#cursor {
  position: fixed; width: 10px; height: 10px;
  background: var(--fire); border-radius: 50%;
  pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width .2s, height .2s, background .3s;
}
#cursor-ring {
  position: fixed; width: 34px; height: 34px;
  border: 1px solid rgba(232,66,10,.5); border-radius: 50%;
  pointer-events: none; z-index: 9998;
  transform: translate(-50%, -50%);
  transition: left .12s ease-out, top .12s ease-out, width .25s, height .25s, border-color .2s;
}
body:has(a:hover) #cursor { width: 18px; height: 18px; background: var(--ice); }
body:has(a:hover) #cursor-ring { width: 54px; height: 54px; border-color: var(--ice); }

/* ── 3. HEADER & NAV ── */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 6%; height: 66px;
  display: flex; justify-content: space-between; align-items: center;
  background: transparent;
  transition: background .4s, backdrop-filter .4s, border-color .4s;
  border-bottom: 1px solid transparent;
}
header.scrolled { background: rgba(255,255,255,.97); backdrop-filter: blur(14px); border-bottom-color: rgba(0,0,0,.08); }
header.scrolled nav a { color: #444; }
header.scrolled nav a:hover { color: #111; }
header.scrolled .nav-cta { color: white !important; }
.logo-img { height: 46px; width: auto; object-fit: contain; }
nav { display: flex; gap: 2.5rem; align-items: center; }
nav a {
  font-size: .75rem; font-weight: 500; color: rgba(255,255,255,.8);
  text-decoration: none; letter-spacing: 1.5px; text-transform: uppercase;
  position: relative; transition: color .2s;
}
nav a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: linear-gradient(90deg, var(--fire), var(--ice));
  transition: width .3s;
}
nav a:hover { color: #fff; }
nav a:hover::after { width: 100%; }
.nav-cta {
  background: linear-gradient(135deg, var(--fire), var(--fire2)) !important;
  color: white !important; padding: 9px 22px;
  font-family: 'Oswald', sans-serif !important; font-size: .85rem !important;
  letter-spacing: 2px !important;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  transition: opacity .2s !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { opacity: .85 !important; }

/* ── 4. HERO ── */
.hero {
  min-height: 100vh; display: flex; flex-direction: column;
  justify-content: center; align-items: center; text-align: center;
  padding: 100px 6% 80px; position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: url('https://images.unsplash.com/photo-1504328345606-18bbc8c9d7d1?w=1800&q=80') center/cover no-repeat;
}
.hero-bg::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(160deg, rgba(8,16,32,.90) 0%, rgba(6,14,28,.85) 50%, rgba(4,20,38,.92) 100%);
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 15% 85%, rgba(232,66,10,.20), transparent 55%),
    radial-gradient(ellipse 60% 50% at 85% 15%, rgba(30,159,212,.16), transparent 55%);
}
.hero-logo {
  width: min(180px, 35vw); margin-bottom: 28px;
  position: relative; z-index: 1;
  opacity: 0; animation: fadeIn .9s .2s forwards;
  filter: drop-shadow(0 4px 24px rgba(0,0,0,.6));
}
.hero-eyebrow {
  font-size: .72rem; letter-spacing: 5px; text-transform: uppercase;
  color: var(--fire); margin-bottom: 18px;
  position: relative; z-index: 1;
  opacity: 0; transform: translateY(20px); animation: up .7s .45s forwards;
}
.hero h1 {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(2.8rem, 7.5vw, 7rem); font-weight: 700;
  line-height: 1.05; letter-spacing: -1px; color: #fff;
  position: relative; z-index: 1;
  opacity: 0; transform: translateY(40px); animation: up .8s .6s forwards;
}
.hero h1 .fire { color: var(--fire); }
.hero h1 .ice  { color: var(--ice2); }
.hero-sub {
  font-size: clamp(.88rem, 1.4vw, 1.05rem); font-weight: 300;
  color: rgba(255,255,255,.70); max-width: 580px; line-height: 1.9;
  margin-top: 22px; font-style: italic;
  position: relative; z-index: 1;
  opacity: 0; transform: translateY(24px); animation: up .7s .8s forwards;
}
.hero-btns {
  display: flex; gap: 16px; margin-top: 40px;
  flex-wrap: wrap; justify-content: center;
  position: relative; z-index: 1;
  opacity: 0; transform: translateY(20px); animation: up .7s 1s forwards;
}
.btn-ara {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--fire); color: white; text-decoration: none;
  font-family: 'Oswald', sans-serif; font-size: 1rem;
  letter-spacing: 2px; text-transform: uppercase; padding: 16px 44px;
  border-radius: 50px; box-shadow: 0 4px 24px rgba(232,66,10,.45);
  transition: background .2s, transform .15s, box-shadow .2s;
}
.btn-ara:hover { background: var(--fire2); transform: translateY(-3px); box-shadow: 0 8px 32px rgba(232,66,10,.55); }
.btn-wp {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,.12); color: white; text-decoration: none;
  font-family: 'Oswald', sans-serif; font-size: 1rem;
  letter-spacing: 2px; text-transform: uppercase; padding: 16px 44px;
  border-radius: 50px; border: 1.5px solid rgba(255,255,255,.35);
  backdrop-filter: blur(8px); transition: background .2s, transform .15s, border-color .2s;
}
.btn-wp:hover { background: rgba(255,255,255,.22); transform: translateY(-3px); border-color: rgba(255,255,255,.6); }
.scroll-hint {
  position: absolute; bottom: 10px; left: 0; right: 0; width: 100%;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  opacity: 0; animation: up .6s 1.5s forwards; z-index: 0; pointer-events: none;
}
.scroll-hint small { font-size: .65rem; letter-spacing: 3px; text-transform: uppercase; color: rgba(255,255,255,.35); }
.scroll-line { width: 1px; height: 40px; background: linear-gradient(var(--fire), var(--ice)); animation: scrollDrop 1.6s 1.8s infinite; }

@keyframes fadeIn { to { opacity: 1; } }
@keyframes up { to { opacity: 1; transform: translateY(0); } }
@keyframes scrollDrop {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ── 5. BÖLGE TICKER ── */
.bolge {
  background: linear-gradient(135deg, var(--fire) 0%, #c73010 45%, #0a7ab0 60%, var(--ice) 100%);
  padding: 13px 0; overflow: hidden;
}
.bolge-track { display: flex; animation: ticker 22s linear infinite; white-space: nowrap; }
@keyframes ticker { to { transform: translateX(-50%); } }
.bolge-track span { font-size: .8rem; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: rgba(255,255,255,.92); padding: 0 28px; }
.bolge-track span::before { content: '◆'; margin-right: 14px; font-size: .45rem; opacity: .7; vertical-align: middle; }

/* ── 6. REVEAL & GENEL ── */
.reveal { opacity: 0; transform: translateY(50px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }
.label { font-size: .7rem; letter-spacing: 5px; text-transform: uppercase; margin-bottom: 14px; }
.label-fire { color: var(--fire); }
.label-ice  { color: var(--ice); }
.section-title { font-family: 'Oswald', sans-serif; font-size: clamp(2.2rem, 5vw, 4rem); font-weight: 700; line-height: .92; letter-spacing: -1px; color: #111; }

/* ── 7. NEDEN BİZ ── */
.neden { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid #e8e8e8; border-bottom: 1px solid #e8e8e8; background: #fff; }
.neden-item { padding: 48px 22px; border-right: 1px solid #e8e8e8; text-align: center; position: relative; overflow: hidden; transition: background .3s; }
.neden-item::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 0; transition: height .35s; }
.neden-item:nth-child(1)::after, .neden-item:nth-child(2)::after { background: var(--fire); }
.neden-item:nth-child(3)::after { background: linear-gradient(90deg, var(--fire), var(--ice)); }
.neden-item:nth-child(4)::after, .neden-item:nth-child(5)::after { background: var(--ice); }
.neden-item:hover { background: #fafafa; }
.neden-item:hover::after { height: 3px; }
.neden-item:last-child { border-right: none; }
.neden-item big { display: block; font-family: 'Oswald', sans-serif; font-size: 2.2rem; margin-bottom: 10px; transition: transform .3s; }
.neden-item:nth-child(1) big, .neden-item:nth-child(2) big { color: var(--fire); }
.neden-item:nth-child(3) big { background: linear-gradient(135deg, var(--fire), var(--ice)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.neden-item:nth-child(4) big, .neden-item:nth-child(5) big { color: var(--ice); }
.neden-item:hover big { transform: scale(1.12); }
.neden-item b { display: block; font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; color: #222; }
.neden-item p { font-size: .75rem; color: #888; line-height: 1.6; }

/* ── 8. HİZMETLER & KARTLAR ── */
.hizmetler { padding: 110px 6%; background: #f5f7fa; }
.hizmetler-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 60px; flex-wrap: wrap; gap: 2rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 3px; }
.kart { position: relative; overflow: hidden; padding: 38px 30px; background: #fff; border: 1px solid #efefef; min-height: 220px; transition: border-color .4s; cursor: default; }
.kart-img { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0; transition: opacity .55s ease, transform .65s ease; transform: scale(1.07); z-index: 0; }
.kart:hover .kart-img, .kart.hovered .kart-img { opacity: 1; transform: scale(1); }
.kart-overlay { position: absolute; inset: 0; z-index: 1; opacity: 0; transition: opacity .45s ease; }
.kart:nth-child(odd)  .kart-overlay { background: linear-gradient(145deg, rgba(20,8,4,.92) 0%, rgba(232,66,10,.80) 100%); }
.kart:nth-child(even) .kart-overlay { background: linear-gradient(145deg, rgba(4,14,22,.92) 0%, rgba(30,159,212,.80) 100%); }
.kart:hover .kart-overlay, .kart.hovered .kart-overlay { opacity: 1; }
.kart-content { position: relative; z-index: 2; }
.kart:hover, .kart.hovered { border-color: transparent; }
.kart::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; z-index: 4; transform: scaleY(0); transform-origin: bottom; transition: transform .4s cubic-bezier(.4,0,.2,1); }
.kart:nth-child(odd)::before  { background: var(--fire2); }
.kart:nth-child(even)::before { background: var(--ice2); }
.kart:hover::before, .kart.hovered::before { transform: scaleY(1); }
.kart-num { font-family: 'Oswald', sans-serif; font-size: .65rem; letter-spacing: 3px; margin-bottom: 18px; color: #ccc; transition: color .4s; }
.kart:hover .kart-num, .kart.hovered .kart-num { color: rgba(255,255,255,.45); }
.kart i { font-size: 1.8rem; display: block; margin-bottom: 16px; transition: transform .35s; }
.kart:hover i, .kart.hovered i { transform: scale(1.12); }
.kart b { display: block; font-family: 'Oswald', sans-serif; font-size: 1rem; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 10px; color: #111; transition: color .4s; }
.kart:hover b, .kart.hovered b { color: #fff; }
.kart p { font-size: .84rem; color: #888; line-height: 1.7; transition: color .4s; }
.kart:hover p, .kart.hovered p { color: rgba(255,255,255,.80); }
.kart-ara-btn { display:inline-flex; align-items:center; gap:6px; margin-top:14px; padding:9px 18px; background:var(--fire); color:#fff !important; font-family:'Oswald',sans-serif; font-size:.78rem; letter-spacing:1.5px; text-transform:uppercase; text-decoration:none; border:none; border-radius:2px; cursor:pointer; transition:background .2s, transform .2s; }
.kart-ara-btn:hover { background:#c73508; transform:translateY(-1px); }
.kart:hover .kart-ara-btn, .kart.hovered .kart-ara-btn { background:#fff; color:#111 !important; }

/* ── 9. PROJELER ── */
.projeler { padding: 110px 6%; background: #fff; }
.proje-liste { list-style: none; margin-top: 60px; }
.proje-item { display: flex; justify-content: space-between; align-items: center; padding: 24px 0; border-bottom: 1px solid #ececec; gap: 2rem; position: relative; overflow: hidden; transition: padding-left .3s; }
.proje-item::before { content: ''; position: absolute; left: -4px; top: 0; bottom: 0; width: 3px; background: linear-gradient(180deg, var(--fire), var(--ice)); transform: scaleY(0); transition: transform .3s; }
.proje-item:hover { padding-left: 18px; }
.proje-item:hover::before { transform: scaleY(1); }
.proje-item:last-child { border-bottom: none; }
.proje-item span { font-size: .68rem; letter-spacing: 2px; text-transform: uppercase; color: #bbb; min-width: 200px; transition: color .3s, letter-spacing .3s; }
.proje-item:hover span { color: var(--ice); letter-spacing: 3px; }
.proje-item strong { font-family: 'Oswald', sans-serif; font-size: 1.1rem; font-weight: 400; flex: 1; color: #222; transition: color .3s; }
.proje-item:hover strong { color: #111; }
.proje-arrow { opacity: 0; transform: translateX(-10px); font-size: 1.2rem; color: var(--fire); transition: opacity .3s, transform .3s; }
.proje-item:hover .proje-arrow { opacity: 1; transform: translateX(0); }

/* ── 10. SSS ── */
.sss { padding: 110px 6%; background: #f5f7fa; }
.sss-header { margin-bottom: 60px; }
.sss-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3px; }
.sss-item { background: #fff; border: 1px solid #efefef; overflow: hidden; }
.sss-q { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; padding: 26px 30px; cursor: pointer; font-family: 'Oswald', sans-serif; font-size: .95rem; font-weight: 400; letter-spacing: 1px; text-transform: uppercase; color: #111; transition: color .3s, background .3s; user-select: none; }
.sss-q:hover { background: #fafafa; }
.sss-item.open .sss-q { color: var(--fire); }
.sss-icon { width: 28px; height: 28px; flex-shrink: 0; border: 1.5px solid #ddd; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: .9rem; font-style: normal; transition: background .3s, border-color .3s, transform .3s; }
.sss-item.open .sss-icon { background: var(--fire); border-color: var(--fire); color: #fff; transform: rotate(45deg); }
.sss-a { max-height: 0; overflow: hidden; transition: max-height .4s ease, padding .3s; padding: 0 30px; }
.sss-a p { font-size: .88rem; color: #666; line-height: 1.85; padding-bottom: 24px; border-top: 1px solid #f0f0f0; padding-top: 18px; }
.sss-item.open .sss-a { max-height: 300px; }

/* ── 11. İLETİŞİM & HARİTA ── */
.iletisim { display: grid; grid-template-columns: 1fr 1fr; }
.iletisim-sol { position: relative; overflow: hidden; min-height: 480px; }
#harita { position: absolute; inset: 0; width: 100%; height: 100%; }
#harita iframe { width: 100%; height: 100%; border: 0; filter: grayscale(20%) contrast(1.05); }
.harita-pins { position: absolute; inset: 0; z-index: 2; }
.pin { position: absolute; text-decoration: none; display: flex; flex-direction: column; align-items: center; gap: 4px; transform: translate(-50%, -100%); transition: transform .2s; }
.pin:hover { transform: translate(-50%, -100%) scale(1.15); }
.pin-dot { width: 14px; height: 14px; background: var(--fire); border-radius: 50%; border: 2.5px solid #fff; box-shadow: 0 2px 8px rgba(0,0,0,.4); display: block; position: relative; }
.pin-dot::after { content: ''; position: absolute; bottom: -6px; left: 50%; transform: translateX(-50%); width: 0; height: 0; border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 7px solid var(--fire); }
.pin-label { background: rgba(10,10,10,.82); color: #fff; font-family: 'Oswald', sans-serif; font-size: .7rem; letter-spacing: 1.5px; text-transform: uppercase; padding: 3px 8px; white-space: nowrap; border-radius: 2px; margin-bottom: 2px; }
.pin:hover .pin-dot { background: var(--ice); border-color: #fff; }
.pin:hover .pin-dot::after { border-top-color: var(--ice); }
.harita-overlay { position: absolute; bottom: 0; left: 0; right: 0; z-index: 3; background: linear-gradient(transparent, rgba(0,0,0,.72)); padding: 32px 7% 28px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.harita-overlay p { font-family: 'Oswald', sans-serif; font-size: .72rem; letter-spacing: 4px; text-transform: uppercase; color: rgba(255,255,255,.7); }
.btn-iletisim { display: inline-flex; align-items: center; gap: 10px; background: #fff; color: var(--fire); text-decoration: none; font-family: 'Oswald', sans-serif; font-size: .85rem; letter-spacing: 3px; text-transform: uppercase; padding: 12px 28px; transition: opacity .2s, transform .15s; }
.btn-iletisim:hover { opacity: .9; transform: translateY(-2px); }
.iletisim-sag { background: #fff; padding: 90px 7%; border-left: 1px solid #eee; }
.iletisim-sag h3 { font-family: 'Oswald', sans-serif; font-size: .75rem; letter-spacing: 4px; text-transform: uppercase; color: #ccc; margin-bottom: 38px; }
.bilgi { padding: 24px 0; border-bottom: 1px solid #f0f0f0; display: flex; align-items: flex-start; gap: 18px; transition: padding-left .3s; }
.bilgi:hover { padding-left: 8px; }
.bilgi:last-child { border-bottom: none; }
.bilgi-dot { width: 5px; height: 5px; border-radius: 50%; margin-top: 9px; flex-shrink: 0; transition: transform .3s; }
.bilgi:nth-child(odd)  .bilgi-dot { background: var(--fire); }
.bilgi:nth-child(even) .bilgi-dot { background: var(--ice); }
.bilgi:hover .bilgi-dot { transform: scale(1.8); }
.bilgi small { display: block; font-size: .65rem; letter-spacing: 2px; text-transform: uppercase; color: #bbb; margin-bottom: 5px; }
.bilgi a { font-size: 1.05rem; font-weight: 500; color: #111; text-decoration: none; transition: color .2s; }
.bilgi a:hover { color: var(--ice); }
.bilgi p { font-size: 1.05rem; font-weight: 500; color: #111; }

/* ── 12. FOOTER ── */
footer { background: #f5f5f5; padding: 26px 6%; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; border-top: 1px solid #e5e5e5; }
.footer-logo { height: 38px; width: auto; }
footer p { font-size: .72rem; color: #aaa; }

/* ── 13. RESPONSIVE ── */
@media (max-width: 960px) {
  .neden { grid-template-columns: 1fr 1fr; }
  .neden-item { border-bottom: 1px solid #e8e8e8; }
  .iletisim { grid-template-columns: 1fr; }
  .proje-item { flex-direction: column; align-items: flex-start; gap: 4px; }
  .proje-arrow { display: none; }
  .sss-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sss-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  nav a:not(.nav-cta) { display: none; }
  .hero h1 { font-size: 2.8rem; }
  .hero-btns { flex-direction: column; align-items: center; }
  .btn-ara, .btn-wp { width: 100%; justify-content: center; }
}