/* =========================================================
   0) TEMEL DEĞİŞKENLER (dark/light)
========================================================= */
:root{--bg:#0b1220;--surface:#0f172a;--elev:#0b1324;--text:#e5e7eb;--muted:#9ca3af;--primary:#3b82f6;--accent:#22d3ee;--border:#1f2937;--ring:rgba(59,130,246,.5);--container:1120px;--radius:16px;--shadow:0 12px 40px rgba(0,0,0,.35)}
[data-theme=light]{--bg:#f6f8fd;--surface:#fff;--elev:#fff;--text:#0f172a;--muted:#475569;--primary:#2563eb;--accent:#06b6d4;--border:#e5e7eb;--ring:rgba(37,99,235,.4)}

/* =========================================================
   1) GENEL & TIPOGRAFİ
========================================================= */
*{box-sizing:border-box}html{scroll-behavior:smooth}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.6 Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img,svg,video{max-width:100%;height:auto;display:block}h1,h2,h3,h4{line-height:1.18;margin:0 0 .6em}h1.display{font-size:clamp(30px,6vw,56px);letter-spacing:-.02em}.lead{font-size:clamp(15px,1.4vw,19px);color:var(--muted)}p{margin:0 0 1em}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}::selection{background:var(--primary);color:#fff}

/* =========================================================
   2) KAPSAYICI & BÖLÜMLER
========================================================= */
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:18px}.section{padding:clamp(52px,8vw,96px) 0}.section.alt{background:linear-gradient(0deg,rgba(255,255,255,.02),rgba(255,255,255,.02)),var(--bg)}.section-head{text-align:center;margin-bottom:clamp(24px,4vw,48px)}.section-head>p{color:var(--muted);max-width:760px;margin:8px auto 0}

/* =========================================================
   3) ERİŞİLEBİLİRLİK & KÜÇÜK YARDIMCILAR
========================================================= */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:16px;top:16px;width:auto;height:auto;background:var(--primary);color:#fff;padding:.6em .9em;border-radius:10px;z-index:9999}
a:focus-visible,button:focus-visible{outline:0;box-shadow:0 0 0 3px var(--ring);border-radius:10px}
.scroll-progress{position:fixed;inset-inline:0;top:0;height:3px;z-index:2000}
.scroll-progress>span{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--accent),var(--primary));box-shadow:0 0 10px var(--primary)}
.to-top{position:fixed;right:16px;bottom:16px;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:var(--text);display:none;align-items:center;justify-content:center;box-shadow:var(--shadow);z-index:1200}
.to-top svg{width:20px;height:20px}.to-top.show{display:flex}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:translateY(0)}
*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-thumb{background:color-mix(in oklab,var(--primary) 40%,#4b5563);border-radius:999px}*::-webkit-scrollbar-track{background:transparent}

/* =========================================================
   4) BUTONLAR
========================================================= */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6em;border:1px solid var(--border);border-radius:12px;padding:.75em 1.1em;font-weight:600;background:var(--surface);color:var(--text);cursor:pointer;transition:transform .18s ease,background .18s ease,border-color .18s ease}
.btn:hover{transform:translateY(-1px);background:rgba(59,130,246,.08)}
.btn-primary{background:linear-gradient(180deg,var(--primary),color-mix(in oklab,var(--primary) 80%,#000));border-color:transparent;color:#fff}
.btn-primary:hover{background:linear-gradient(180deg,color-mix(in oklab,var(--primary) 80%,#000),color-mix(in oklab,var(--primary) 65%,#000))}
.btn-outline{background:transparent}
.btn-sm{padding:.55em .8em;font-size:.95rem}.btn-lg{padding:1em 1.25em;border-radius:14px}

/* =========================================================
   5) HEADER / NAV
========================================================= */
.site-header{position:sticky;top:0;z-index:1200;background:transparent;transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;border-bottom:1px solid transparent}
.site-header.scrolled{background:color-mix(in oklab,var(--elev) 92%,transparent);border-bottom-color:var(--border);box-shadow:var(--shadow);backdrop-filter:saturate(120%) blur(8px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;height:68px}
.logo img{height:34px;width:auto}
.nav{display:flex;align-items:center;gap:10px}
.nav-toggle,.theme-switch{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:14px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer}
.menu,.menu>li{list-style:none;margin:0;padding:0}
.menu{position:fixed;inset:0;padding:96px 20px 24px;display:none;flex-direction:column;gap:10px;background:color-mix(in oklab,var(--elev) 96%,transparent);backdrop-filter:blur(10px) saturate(120%);z-index:1100}
.menu.open{display:flex}
.menu a{display:block;padding:.9em 1em;color:var(--text);border-radius:12px;font-size:1.05rem;border:1px solid transparent}
.menu a:hover{background:rgba(59,130,246,.14);text-decoration:none;border-color:var(--border)}
.menu a.active{background:rgba(59,130,246,.18);border-color:var(--border)}
.menu-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:opacity .2s ease;z-index:1000}
body.nav-open .menu-overlay{opacity:1;pointer-events:auto}
.quick-actions{display:flex;align-items:center;gap:10px}
.call{display:inline-flex;align-items:center;gap:.5em;padding:.55em .85em;border-radius:12px;border:1px solid var(--border);color:var(--text);background:var(--surface);font-weight:600}
.call:hover{background:rgba(59,130,246,.10);text-decoration:none}
.hide-mobile{display:none}
@media (min-width:900px){.nav-toggle{display:none}.menu{position:static;display:flex!important;flex-direction:row;gap:8px;background:transparent;border:0;padding:0;box-shadow:none}.menu a{padding:.6em .9em;border-radius:10px;font-size:.98rem}.menu-overlay{display:none}.hide-mobile{display:inline-flex}}

/* =========================================================
   6) HERO
========================================================= */
.hero{position:relative;min-height:84vh;display:flex;align-items:center;isolation:isolate;overflow:hidden;text-align:center}
.hero-media{position:absolute;inset:0;z-index:0;background:linear-gradient(180deg,rgba(2,6,23,.72),rgba(2,6,23,.72)),url('img/wallpaper.png') center/cover no-repeat}
.hero-inner{position:relative;z-index:1;padding-block:60px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:18px}

/* =========================================================
   7) KARTLAR / ÖZET BLOKLAR
========================================================= */
.grid{display:grid;gap:22px}
.cards{grid-template-columns:repeat(1,minmax(0,1fr))}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:0 6px 18px rgba(0,0,0,.25);transition:transform .2s ease,box-shadow .2s ease}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.card img{aspect-ratio:16/9;object-fit:cover}.card-body{padding:18px}.card-body h3{margin:6px 0 8px;font-size:1.1rem}
@media (min-width:700px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.cards{grid-template-columns:repeat(4,minmax(0,1fr))}}

/* =========================================================
   8) PROJELER (Filtre + Grid)
========================================================= */
.filters{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:18px}
.filter{border:1px solid var(--border);background:var(--surface);color:var(--text);padding:.5em .8em;border-radius:999px;cursor:pointer;font-weight:600}
.filter:hover{border-color:var(--primary)}
.filter.active{background:var(--primary);color:#fff;border-color:transparent}
.portfolio{grid-template-columns:repeat(1,minmax(0,1fr))}
.p-card{position:relative;overflow:hidden;border-radius:16px;border:1px solid var(--border);background:#000}
.p-card img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;opacity:.88;transition:transform .5s ease,opacity .35s ease}
.p-card:hover img{transform:scale(1.04);opacity:.95}
.p-overlay{position:absolute;inset-inline:0;bottom:0;padding:16px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.66));color:#fff;transform:translateY(10%);opacity:.95;transition:transform .3s ease}
.p-card:hover .p-overlay{transform:translateY(0)}
.p-card.hide{display:none!important}
@media (min-width:700px){.portfolio{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.portfolio{grid-template-columns:repeat(3,minmax(0,1fr))}}

/* =========================================================
   9) HAKKIMIZDA / İSTATİSTİK / FORM
========================================================= */
.about-inner{display:grid;gap:22px;grid-template-columns:1fr;align-items:center}
.about-media img{border-radius:20px;border:1px solid var(--border);box-shadow:var(--shadow)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:10px}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px;text-align:center;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.stat .num{display:block;font-size:clamp(24px,3.5vw,36px);font-weight:800;letter-spacing:-.02em}
.stat .label{display:block;color:var(--muted);font-size:.95rem;margin-top:4px}
@media (min-width:960px){.about-inner{grid-template-columns:1.2fr 1fr}}

.form{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:18px;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.form-grid{display:grid;gap:12px;grid-template-columns:1fr}
.field{display:grid;gap:6px}.field span{font-weight:600;font-size:.95rem}
.field input,.field select,.field textarea{background:#0b1324;color:var(--text);border:1px solid var(--border);border-radius:12px;padding:.8em .9em}
[data-theme=light] .field input,[data-theme=light] .field select,[data-theme=light] .field textarea{background:#fff}
.field input::placeholder,.field textarea::placeholder{color:color-mix(in oklab,var(--muted) 70%,transparent)}
.field:focus-within input,.field:focus-within select,.field:focus-within textarea{border-color:var(--primary);box-shadow:0 0 0 3px var(--ring);outline:0}
.error{color:#fca5a5;min-height:1em;font-size:.9rem}.has-error input,.has-error select,.has-error textarea{border-color:#ef4444}
.full{grid-column:1/-1}.form-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:6px;flex-wrap:wrap}.form-meta,.form-note{color:var(--muted)}
@media (min-width:720px){.form-grid{grid-template-columns:repeat(2,1fr)}}

/* =========================================================
   10) HARİTA BLOĞU (iletişim)
========================================================= */
.grid.two{display:grid;gap:22px;grid-template-columns:1fr}.map-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:16px;box-shadow:0 6px 18px rgba(0,0,0,.25)}.map-card h3{margin:0 0 6px}
.map-embed{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--border);margin:10px 0 12px}.map-embed iframe{width:100%;height:320px;border:0;display:block}
@media (min-width:920px){.grid.two{grid-template-columns:1.1fr .9fr}.map-embed iframe{height:420px}}

/* =========================================================
   11) FOOTER
========================================================= */
.site-footer{position:relative;background:var(--elev);border-top:1px solid var(--border);padding-top:36px}
.footer-wave{position:absolute;top:-1px;left:0;width:100%;height:100px;fill:color-mix(in oklab,var(--primary) 20%,transparent);opacity:.25;pointer-events:none}
.footer-top{display:grid;gap:18px;grid-template-columns:1fr}
.f-col h4{margin-bottom:8px}.f-col.brand>.logo.big img{height:40px}.f-col p{color:var(--muted)}
.links,.contact-list,.social{list-style:none;padding:0;margin:0}
.links{display:grid;gap:8px}.contact-list{display:grid;gap:8px}
.social{display:flex;gap:12px;margin-top:10px}
.social a{width:44px;height:44px;display:inline-grid;place-items:center;padding:0;border-radius:14px;border:1px solid var(--border);color:var(--text);background:var(--surface);transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease}
.social a:hover{transform:translateY(-1px);background:rgba(59,130,246,.10);border-color:var(--primary);color:var(--primary);text-decoration:none}
.social .icon{width:20px;height:20px;fill:currentColor;display:block}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--border);margin-top:18px;padding:14px 0;color:var(--muted)}
@media (min-width:900px){.footer-top{grid-template-columns:1.2fr 1fr 1fr}}

/* =========================================================
   12) FLOATING CTA
========================================================= */
.floating-cta{position:fixed;right:14px;bottom:14px;display:flex;flex-direction:column;gap:10px;z-index:1300}
.fab{width:54px;height:54px;border-radius:999px;display:inline-grid;place-items:center;border:1px solid var(--border);background:var(--surface);color:#10b981;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.fab.call{color:#3b82f6}.fab svg{width:24px;height:24px}
@media (min-width:920px){.floating-cta{display:none}}

/* =========================================================
   13) LIGHTBOX (galeri büyütme)
========================================================= */
.lb-open{overflow:hidden}
.lb{position:fixed;inset:0;display:grid;place-items:center;z-index:2000;opacity:0;pointer-events:none;transition:opacity .18s ease}
.lb.is-open{opacity:1;pointer-events:auto}
.lb__backdrop{position:absolute;inset:0;background:radial-gradient(1200px 600px at 50% 30%,rgba(15,23,42,.9),rgba(2,6,23,.98));backdrop-filter:blur(4px)}
.lb__dialog{position:relative;width:min(92vw,1100px);border-radius:16px;background:rgba(17,24,39,.6);box-shadow:0 10px 40px rgba(0,0,0,.5);overflow:hidden;transform:scale(.96) translateY(6px);transition:transform .18s ease}
.lb.is-open .lb__dialog{transform:scale(1) translateY(0)}
.lb__figure{margin:0;display:grid;grid-template-rows:1fr auto;min-height:min(78vh,760px)}
.lb__img{width:100%;height:100%;object-fit:cover;display:block;background:#0b1220}
.lb__caption{padding:16px 20px;display:grid;grid-template-columns:1fr auto;gap:6px 12px;background:linear-gradient(180deg,rgba(2,6,23,0),rgba(2,6,23,.6));color:#e5e7eb}
.lb__title{font-weight:700;letter-spacing:.2px}.lb__desc{opacity:.9;font-size:14px;grid-column:1/-1}.lb__count{font-size:13px;color:#a5b4fc;align-self:start}
.lb__close,.lb__nav{position:absolute;top:10px;width:40px;height:40px;border:0;border-radius:999px;background:rgba(15,23,42,.65);color:#e5e7eb;cursor:pointer;display:grid;place-items:center;transition:background .15s ease,transform .1s ease;backdrop-filter:blur(2px)}
.lb__close{right:10px;font-size:22px;line-height:1}.lb__nav{top:50%;transform:translateY(-50%);font-size:22px}.lb__prev{left:10px}.lb__next{right:10px}
.lb__close:hover,.lb__nav:hover{background:rgba(30,41,59,.9)}.lb__nav:active{transform:translateY(-50%) scale(.96)}.lb__close:active{transform:scale(.96)}
.lb__dialog{max-height:90vh;display:flex;flex-direction:column;justify-content:center}.lb__img{max-height:80vh;max-width:90vw;object-fit:contain;background:#0b1220}
@media (max-width:640px){.lb__dialog{width:96vw}.lb__caption{grid-template-columns:1fr}.lb__count{justify-self:end}}