/* ==========================================================================
   H ÖZDEMİR İNŞAAT — 3D Kurumsal Tema
   Palet: Logo mavisi + gri + inşaat altını (amber)
   ========================================================================== */
:root{
    --blue:#1f6fe5;
    --blue-light:#4f9bff;
    --blue-deep:#123a8f;
    --gold:#ffb020;
    --gold-soft:#ffc857;
    --ink:#0a1120;
    --ink-2:#0f1a2e;
    --ink-3:#16233d;
    --slate:#64748b;
    --slate-light:#94a3b8;
    --paper:#eef2f9;
    --white:#ffffff;
    --line:rgba(255,255,255,.09);
    --line-dark:rgba(10,17,32,.10);
    --shadow:0 20px 60px rgba(8,15,30,.18);
    --shadow-lg:0 40px 90px rgba(8,15,30,.35);
    --radius:16px;
    --ease:cubic-bezier(.22,1,.36,1);
    --font-body:'Inter',system-ui,sans-serif;
    --font-head:'Oswald',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    font-family:var(--font-body);color:#1f2b45;line-height:1.65;background:var(--white);
    overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
a{text-decoration:none;color:inherit;transition:color .3s var(--ease)}
ul{list-style:none}
img{max-width:100%;display:block}
section{position:relative}

.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:120px 0;position:relative}
.section.tight{padding:90px 0}
.center{text-align:center}
.bg-ink{background:var(--ink);color:#dbe4f3}
.bg-paper{background:var(--paper)}
.bg-mesh{background:
    radial-gradient(1200px 600px at 80% -10%,rgba(31,111,229,.16),transparent 60%),
    radial-gradient(900px 500px at -10% 110%,rgba(255,176,32,.10),transparent 55%),
    var(--ink);
    color:#dbe4f3;}

/* Typography */
h1,h2,h3,h4,h5{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.5px;line-height:1.08;font-weight:600}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:600;
    letter-spacing:3px;font-size:.8rem;color:var(--blue);text-transform:uppercase;margin-bottom:18px}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--gold)}
.eyebrow.on-dark{color:var(--gold-soft)}
.title{font-size:clamp(2rem,4.4vw,3.4rem);font-weight:700;margin-bottom:22px}
.title .hl{color:var(--blue)}
.on-dark .title .hl,.bg-ink .title .hl,.bg-mesh .title .hl{color:var(--gold)}
.lead{font-size:1.12rem;color:var(--slate);max-width:640px}
.center .lead{margin-inline:auto}
.section-head{margin-bottom:60px}

/* Buttons */
.btn{position:relative;display:inline-flex;align-items:center;gap:10px;padding:15px 34px;font-family:var(--font-head);
    font-weight:600;letter-spacing:1px;font-size:.92rem;text-transform:uppercase;border:none;cursor:pointer;
    border-radius:10px;transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .35s;
    transform-style:preserve-3d;overflow:hidden}
.btn i{transition:transform .35s var(--ease)}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--blue-deep));color:#fff;
    box-shadow:0 12px 30px rgba(31,111,229,.35)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 44px rgba(31,111,229,.5)}
.btn-primary:hover i{transform:translateX(5px)}
.btn-gold{background:linear-gradient(135deg,var(--gold),#f59e0b);color:#20160a;
    box-shadow:0 12px 30px rgba(255,176,32,.38)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 20px 44px rgba(255,176,32,.55)}
.btn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.55)}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-3px)}
.btn-sm{padding:11px 22px;font-size:.82rem}
.btn-outline-dark{background:transparent;border:2px solid var(--ink);color:var(--ink)}
.btn-outline-dark:hover{background:var(--ink);color:#fff;transform:translateY(-3px)}

/* ========== PRELOADER ========== */
#intro-loader{position:fixed;inset:0;z-index:100000;display:flex;align-items:center;justify-content:center;overflow:hidden}
.loader-panel{position:absolute;top:0;width:50.5%;height:100%;background:var(--ink);z-index:1;
    transition:transform 1s var(--ease)}
.panel-left{left:0}
.panel-right{right:0}
.loader-center{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;color:#fff;font-family:var(--font-head)}
.loader-logo{width:120px;margin-bottom:20px;filter:drop-shadow(0 8px 24px rgba(0,0,0,.5));animation:floaty 2.2s ease-in-out infinite}
.loader-brand{font-size:2.2rem;font-weight:700;letter-spacing:8px}
.loader-status{font-family:var(--font-body);font-size:.78rem;color:var(--slate-light);letter-spacing:4px;margin:8px 0 22px}
.loader-bar{width:240px;height:3px;background:rgba(255,255,255,.12);border-radius:3px;overflow:hidden}
.loader-fill{width:0;height:100%;background:linear-gradient(90deg,var(--blue),var(--gold));box-shadow:0 0 14px var(--blue)}
.loader-pct{margin-top:12px;color:var(--gold-soft);font-size:1.05rem;letter-spacing:2px}
#intro-loader.done .panel-left{transform:translateX(-101%)}
#intro-loader.done .panel-right{transform:translateX(101%)}
#intro-loader.done .loader-center{opacity:0;transition:opacity .35s}
#intro-loader.done{pointer-events:none}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ========== PAGE TRANSITION (3D perde) ========== */
#page-transition{position:fixed;inset:0;z-index:99990;display:grid;grid-template-columns:repeat(5,1fr);
    pointer-events:none}
#page-transition span{background:var(--ink);transform:scaleY(0);transform-origin:bottom}
#page-transition.cover span{transform:scaleY(1);transform-origin:bottom;
    transition:transform .5s var(--ease)}
#page-transition.cover span:nth-child(2){transition-delay:.06s}
#page-transition.cover span:nth-child(3){transition-delay:.12s}
#page-transition.cover span:nth-child(4){transition-delay:.18s}
#page-transition.cover span:nth-child(5){transition-delay:.24s}
#page-transition.reveal span{transform:scaleY(0);transform-origin:top;transition:transform .5s var(--ease)}
#page-transition.reveal span:nth-child(2){transition-delay:.06s}
#page-transition.reveal span:nth-child(3){transition-delay:.12s}
#page-transition.reveal span:nth-child(4){transition-delay:.18s}
#page-transition.reveal span:nth-child(5){transition-delay:.24s}
.pt-logo{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.pt-logo img{width:110px;filter:drop-shadow(0 0 20px rgba(0,0,0,.6));animation:floaty 1.6s ease-in-out infinite}
#page-transition.cover .pt-logo{opacity:1;transition-delay:.25s}

/* ========== HEADER ========== */
#header{position:fixed;top:0;left:0;width:100%;z-index:9000;transition:.4s var(--ease);
    background:rgba(255,255,255,0);backdrop-filter:blur(0)}
#header.scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(14px);
    box-shadow:0 8px 30px rgba(8,15,30,.10)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:86px;gap:20px}
.logo img{height:52px;width:auto;transition:.4s;filter:brightness(0) invert(1)}
#header.scrolled .logo img{filter:none}
.desktop-nav ul{display:flex;gap:34px}
.desktop-nav a{font-family:var(--font-head);font-weight:500;font-size:.95rem;letter-spacing:.5px;
    text-transform:uppercase;color:#fff;position:relative;padding:6px 0}
#header.scrolled .desktop-nav a{color:#28344e}
.desktop-nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
    background:var(--blue);transition:width .35s var(--ease)}
.desktop-nav a:hover::after,.desktop-nav a.active::after{width:100%}
.desktop-nav a.active{color:var(--blue)}
#header.scrolled .desktop-nav a.active{color:var(--blue)}
.header-cta{margin-left:6px}
#header:not(.scrolled) .header-cta{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.4);
    box-shadow:none;color:#fff}
.mobile-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.mobile-toggle span{width:26px;height:2px;background:#fff;transition:.3s}
#header.scrolled .mobile-toggle span{background:var(--ink)}

/* Mobile menu */
.mobile-menu{position:fixed;top:0;right:-320px;width:300px;max-width:85vw;height:100dvh;background:var(--ink);
    z-index:9500;display:flex;flex-direction:column;padding:36px 30px;gap:6px;transition:right .45s var(--ease);
    box-shadow:-20px 0 60px rgba(0,0,0,.5)}
.mobile-menu.active{right:0}
.close-btn{align-self:flex-end;background:none;border:none;color:#fff;font-size:2.2rem;line-height:1;cursor:pointer}
.mm-logo{width:130px;margin:0 auto 26px;filter:brightness(0) invert(1)}
.mobile-menu a{color:#cdd8ee;font-family:var(--font-head);font-size:1.2rem;letter-spacing:1px;text-transform:uppercase;
    padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.08)}
.mobile-menu a.active,.mobile-menu a:hover{color:var(--gold-soft)}
.mm-contact{margin-top:auto;padding-top:20px}
.mm-contact a{color:var(--blue-light);font-size:1rem;font-family:var(--font-body)}

/* ========== HERO ========== */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;
    background:var(--ink);padding:120px 0 60px}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img,.hero-bg video{width:100%;height:100%;object-fit:cover;opacity:.34;transform:scale(1.08)}
.hero-bg::after{content:"";position:absolute;inset:0;
    background:linear-gradient(105deg,var(--ink) 8%,rgba(10,17,32,.72) 42%,rgba(10,17,32,.35) 100%)}
.hero-grid-overlay{position:absolute;inset:0;z-index:1;opacity:.5;
    background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
    background-size:60px 60px;mask-image:radial-gradient(circle at 50% 40%,#000,transparent 80%)}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;width:100%}
.hero-copy{color:#fff}
.hero-badge{display:inline-flex;align-items:center;gap:10px;background:rgba(255,176,32,.14);
    border:1px solid rgba(255,176,32,.4);color:var(--gold-soft);padding:8px 16px;border-radius:100px;
    font-family:var(--font-head);letter-spacing:2px;font-size:.78rem;margin-bottom:26px}
.hero-badge i{font-size:.7rem}
.hero h1{font-size:clamp(2.4rem,5.6vw,4.6rem);font-weight:700;line-height:1.02;margin-bottom:22px;text-transform:uppercase}
.hero h1 .hl{color:transparent;background:linear-gradient(120deg,var(--gold),var(--gold-soft));-webkit-background-clip:text;background-clip:text}
.hero p{font-size:1.18rem;color:#c2cee4;max-width:520px;margin-bottom:34px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:4;color:#8ba0c4;
    font-size:.72rem;letter-spacing:2px;font-family:var(--font-head);text-align:center}
.hero-scroll .mouse{width:24px;height:38px;border:2px solid #55688c;border-radius:14px;margin:0 auto 8px;position:relative}
.hero-scroll .mouse::before{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);
    width:4px;height:7px;background:var(--gold);border-radius:2px;animation:scrollDot 1.6s infinite}
@keyframes scrollDot{0%{opacity:1;top:7px}70%{opacity:0;top:18px}100%{opacity:0}}

/* ===== HERO (tek kolon, ortalanmış) ===== */
.hero-inner.solo{grid-template-columns:1fr;justify-items:center;text-align:center}
.hero-inner.solo .hero-copy p{margin-inline:auto}
.hero-inner.solo .hero-btns{justify-content:center}

/* ===== 3D CANLI ŞANTİYE BÖLÜMÜ ===== */
.excavator-stage{position:relative}
.excavator-stage canvas{position:absolute;inset:0;width:100%!important;height:100%!important;
    display:block;cursor:grab}
.scene3d-wrap{height:min(68vh,620px);min-height:340px;border-radius:var(--radius);overflow:hidden;
    border:1px solid var(--line);
    background:
      radial-gradient(1000px 420px at 50% -5%,rgba(31,111,229,.14),transparent 60%),
      radial-gradient(700px 300px at 80% 110%,rgba(255,176,32,.08),transparent 55%),
      rgba(8,13,26,.55)}
.scene3d-wrap .excavator-svg{position:absolute;inset:0;margin:auto;max-width:640px;max-height:90%;
    filter:drop-shadow(0 30px 40px rgba(0,0,0,.5))}
.scene3d-hint{position:absolute;bottom:16px;right:18px;z-index:3;pointer-events:none;
    background:rgba(10,17,32,.72);backdrop-filter:blur(6px);border:1px solid var(--line);
    color:#c7d4ec;padding:9px 16px;border-radius:100px;font-size:.74rem;
    font-family:var(--font-head);letter-spacing:1.5px;display:flex;gap:9px;align-items:center}
.scene3d-hint i{color:var(--gold-soft);animation:hintWiggle 2.4s ease-in-out infinite}
@keyframes hintWiggle{0%,100%{transform:translateX(0) rotate(0)}25%{transform:translateX(-4px) rotate(-8deg)}55%{transform:translateX(4px) rotate(8deg)}}

/* 3D kamera görünüm butonları */
.scene3d-views{position:absolute;bottom:16px;left:18px;z-index:3;display:flex;gap:8px}
.s3d-btn{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:100px;cursor:pointer;
    background:rgba(10,17,32,.72);backdrop-filter:blur(6px);border:1px solid var(--line);color:#c7d4ec;
    font-family:var(--font-head);font-weight:600;font-size:.72rem;letter-spacing:1.5px;
    transition:background .3s,border-color .3s,color .3s,transform .3s var(--ease)}
.s3d-btn i{color:var(--gold-soft);font-size:.8rem;transition:color .3s}
.s3d-btn:hover{transform:translateY(-2px);border-color:rgba(31,111,229,.5)}
.s3d-btn.active{background:linear-gradient(135deg,var(--blue),var(--blue-deep));border-color:transparent;color:#fff}
.s3d-btn.active i{color:#fff}
@media (max-width:640px){
    .scene3d-views{bottom:12px;left:12px;gap:6px}
    .s3d-btn{padding:7px 12px;font-size:.64rem}
    .scene3d-hint{display:none}
}

/* ===== HİZMET BÖLGELERİ (GEO) ===== */
.container.narrow{max-width:860px}
.areas-grid{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;max-width:920px;margin:0 auto}
.area-chip{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:100px;
    background:var(--white);border:1px solid var(--line-dark);color:#243352;font-weight:600;font-size:.94rem;
    box-shadow:0 6px 18px rgba(8,15,30,.05);transition:transform .3s var(--ease),border-color .3s,color .3s,box-shadow .3s}
.area-chip i{color:var(--blue);font-size:.85rem}
.area-chip:hover{transform:translateY(-3px);border-color:var(--blue);color:var(--blue-deep);
    box-shadow:0 12px 26px rgba(31,111,229,.16)}
.areas-note{text-align:center;max-width:680px;margin:34px auto 0;color:var(--slate);font-size:1rem}

/* ===== SIKÇA SORULAN SORULAR ===== */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--white);border:1px solid var(--line-dark);border-radius:14px;overflow:hidden;
    transition:border-color .3s,box-shadow .3s}
.faq-item[open]{border-color:rgba(31,111,229,.35);box-shadow:0 16px 40px rgba(8,15,30,.08)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
    gap:18px;padding:22px 26px;font-family:var(--font-head);font-weight:600;font-size:1.08rem;color:#16233d;
    letter-spacing:.3px;transition:color .3s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--blue)}
.faq-item summary i{flex-shrink:0;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;
    background:linear-gradient(135deg,var(--blue),var(--blue-deep));color:#fff;font-size:.85rem;
    transition:transform .35s var(--ease)}
.faq-item[open] summary i{transform:rotate(135deg)}
.faq-answer{padding:0 26px 24px;color:var(--slate);line-height:1.75;animation:faqIn .4s var(--ease)}
.faq-answer p{max-width:680px}
@keyframes faqIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.excavator-svg{width:100%;height:auto;overflow:visible}
.ex-machine{animation:machineBob 3.4s ease-in-out infinite}
@keyframes machineBob{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
/* eklem animasyonları — transform-box:view-box ile pivot noktaları viewBox koordinatı */
.ex-boom,.ex-stick,.ex-bucket{transform-box:view-box}
.ex-boom{transform-origin:250px 208px;animation:boomWork 4s ease-in-out infinite}
.ex-stick{transform-origin:372px 150px;animation:stickWork 4s ease-in-out infinite}
.ex-bucket{transform-origin:452px 214px;animation:bucketWork 4s ease-in-out infinite}
@keyframes boomWork{0%,100%{transform:rotate(0deg)}40%{transform:rotate(-9deg)}70%{transform:rotate(-4deg)}}
@keyframes stickWork{0%,100%{transform:rotate(0deg)}35%{transform:rotate(20deg)}55%{transform:rotate(28deg)}80%{transform:rotate(6deg)}}
@keyframes bucketWork{0%,100%{transform:rotate(0deg)}30%{transform:rotate(-32deg)}50%{transform:rotate(-46deg)}65%{transform:rotate(10deg)}85%{transform:rotate(6deg)}}
.ex-cab{transform-box:view-box;transform-origin:180px 200px;animation:cabHum 3.4s ease-in-out infinite}
@keyframes cabHum{0%,100%{transform:rotate(0deg)}50%{transform:rotate(-.6deg)}}
.ex-smoke{opacity:0;transform-box:view-box}
.ex-smoke.s1{animation:smoke 2.4s ease-out infinite}
.ex-smoke.s2{animation:smoke 2.4s ease-out infinite .8s}
.ex-smoke.s3{animation:smoke 2.4s ease-out infinite 1.6s}
@keyframes smoke{0%{opacity:0;transform:translate(0,0) scale(.5)}20%{opacity:.5}100%{opacity:0;transform:translate(-14px,-42px) scale(1.6)}}
.ex-dust{opacity:0;transform-box:view-box}
.ex-dust.d1{animation:dust 4s ease-out infinite 1.4s}
.ex-dust.d2{animation:dust 4s ease-out infinite 1.6s}
.ex-dust.d3{animation:dust 4s ease-out infinite 1.8s}
@keyframes dust{0%,45%{opacity:0;transform:translate(0,0) scale(.4)}55%{opacity:.6}100%{opacity:0;transform:translate(18px,-26px) scale(1.7)}}
.ex-track-detail{animation:trackRoll 1.2s linear infinite}
@keyframes trackRoll{to{stroke-dashoffset:-28}}

/* ========== STATS STRIP ========== */
.stats-strip{background:linear-gradient(135deg,var(--blue-deep),var(--blue));position:relative;overflow:hidden;z-index:5}
.stats-strip::before{content:"";position:absolute;inset:0;opacity:.12;
    background-image:linear-gradient(45deg,#fff 1px,transparent 1px);background-size:22px 22px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);position:relative;z-index:2}
.stat{padding:46px 20px;text-align:center;color:#fff;border-right:1px solid rgba(255,255,255,.14)}
.stat:last-child{border-right:none}
.stat .num{font-family:var(--font-head);font-size:3rem;font-weight:700;line-height:1;
    display:flex;justify-content:center;align-items:baseline}
.stat .num .suf{color:var(--gold-soft)}
.stat .label{font-family:var(--font-head);letter-spacing:2px;font-size:.82rem;margin-top:10px;color:#cfe0ff}

/* ========== MARQUEE ========== */
.marquee{background:var(--ink-2);padding:22px 0;overflow:hidden;border-block:1px solid var(--line);position:relative;z-index:5}
.marquee-track{display:flex;gap:70px;width:max-content;animation:marq 32s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{font-family:var(--font-head);font-size:1.35rem;font-weight:600;color:#4a5b78;letter-spacing:2px;
    white-space:nowrap;transition:color .3s;display:flex;align-items:center;gap:14px}
.marquee-item::before{content:"◆";color:var(--gold);font-size:.6rem}
.marquee-item:hover{color:#c7d4ec}
@keyframes marq{to{transform:translateX(-50%)}}

/* ========== 3D TILT CARD (services) ========== */
.tilt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;perspective:1400px}
.tilt-card{position:relative;background:#fff;border:1px solid var(--line-dark);border-radius:var(--radius);
    padding:38px 32px;transform-style:preserve-3d;transition:transform .4s var(--ease),box-shadow .4s var(--ease);
    will-change:transform;overflow:hidden}
.tilt-card::before{content:"";position:absolute;inset:0;border-radius:var(--radius);
    background:linear-gradient(135deg,rgba(31,111,229,.06),transparent 60%);opacity:0;transition:opacity .4s}
.tilt-card:hover{box-shadow:var(--shadow)}
.tilt-card:hover::before{opacity:1}
.tilt-card .card-num{position:absolute;top:20px;right:26px;font-family:var(--font-head);font-size:3.2rem;
    font-weight:700;color:rgba(31,111,229,.08);line-height:1;transform:translateZ(10px)}
.tilt-ic{width:66px;height:66px;border-radius:14px;display:flex;align-items:center;justify-content:center;
    font-size:1.6rem;color:#fff;background:linear-gradient(135deg,var(--blue),var(--blue-deep));
    margin-bottom:22px;transform:translateZ(40px);box-shadow:0 14px 30px rgba(31,111,229,.34)}
.tilt-card:nth-child(3n+2) .tilt-ic{background:linear-gradient(135deg,var(--gold),#f59e0b);box-shadow:0 14px 30px rgba(255,176,32,.34)}
.tilt-card h3{font-size:1.28rem;margin-bottom:12px;color:var(--ink);transform:translateZ(26px)}
.tilt-card p{color:var(--slate);font-size:.96rem;transform:translateZ(14px)}
.tilt-card .card-arrow{margin-top:18px;color:var(--blue);font-family:var(--font-head);font-size:.85rem;
    letter-spacing:1px;display:inline-flex;gap:8px;align-items:center;transform:translateZ(20px)}

/* ========== ABOUT (split) ========== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.about-visual{position:relative}
.about-visual .frame{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);
    aspect-ratio:4/5;transform:perspective(1200px) rotateY(-6deg);transition:transform .6s var(--ease)}
.about-visual .frame img{width:100%;height:100%;object-fit:cover}
.about-visual:hover .frame{transform:perspective(1200px) rotateY(0)}
.exp-badge{position:absolute;bottom:-26px;left:-26px;background:linear-gradient(135deg,var(--gold),#f59e0b);
    color:#20160a;padding:24px 28px;border-radius:14px;box-shadow:var(--shadow);text-align:center;z-index:2}
.exp-badge .n{font-family:var(--font-head);font-size:2.8rem;font-weight:700;line-height:1}
.exp-badge .t{font-family:var(--font-head);font-size:.78rem;letter-spacing:1px;line-height:1.2}
.about-visual .float-tag{position:absolute;top:24px;right:-20px;background:#fff;padding:14px 18px;border-radius:12px;
    box-shadow:var(--shadow);display:flex;align-items:center;gap:12px;z-index:2}
.about-visual .float-tag i{color:var(--blue);font-size:1.3rem}
.about-visual .float-tag b{font-family:var(--font-head);color:var(--ink);display:block;font-size:1rem}
.about-visual .float-tag span{font-size:.78rem;color:var(--slate)}
.lead-quote{border-left:4px solid var(--gold);padding-left:20px;font-size:1.16rem;font-weight:500;color:#2a3854;margin-bottom:22px}
.about-content p{color:var(--slate);margin-bottom:16px}
.founder-card{display:flex;align-items:center;gap:16px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line-dark)}
.founder-card .sig{font-family:var(--font-head);font-size:1.3rem;color:var(--ink)}
.founder-card .sig span{display:block;font-family:var(--font-body);font-size:.85rem;color:var(--blue);font-weight:600;letter-spacing:1px}
.mini-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:24px 0}
.mini-list li{display:flex;gap:12px;align-items:center;font-weight:500;color:#2a3854;font-size:.98rem}
.mini-list i{color:var(--blue)}

/* ========== PROJECTS ========== */
.tabs{display:inline-flex;gap:8px;background:#fff;padding:7px;border-radius:100px;margin:0 auto 46px;
    box-shadow:var(--shadow);border:1px solid var(--line-dark)}
.bg-paper .tabs{background:#fff}
.tab-btn{padding:12px 30px;border:none;background:transparent;cursor:pointer;font-family:var(--font-head);
    font-weight:600;letter-spacing:1px;font-size:.9rem;color:var(--slate);border-radius:100px;transition:.35s var(--ease);text-transform:uppercase}
.tab-btn.active{background:linear-gradient(135deg,var(--blue),var(--blue-deep));color:#fff;box-shadow:0 10px 24px rgba(31,111,229,.34)}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:fadeUp .55s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}

.ongoing-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px}
.ongoing-card{background:#fff;border:1px solid var(--line-dark);border-left:4px solid var(--gold);
    border-radius:14px;padding:30px;transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.ongoing-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-left-color:var(--blue)}
.ongoing-card .oc-top{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.ongoing-card i{font-size:1.5rem;color:var(--blue);width:52px;height:52px;border-radius:12px;
    background:rgba(31,111,229,.09);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.ongoing-card .live{margin-left:auto;font-size:.68rem;font-family:var(--font-head);letter-spacing:1px;color:#16a34a;
    display:flex;align-items:center;gap:6px}
.ongoing-card .live::before{content:"";width:8px;height:8px;border-radius:50%;background:#16a34a;
    box-shadow:0 0 0 0 rgba(22,163,74,.5);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(22,163,74,.5)}70%{box-shadow:0 0 0 10px rgba(22,163,74,0)}100%{box-shadow:0 0 0 0 rgba(22,163,74,0)}}
.ongoing-card h4{font-size:1.08rem;color:var(--ink);margin-bottom:10px;line-height:1.25}
.ongoing-card p{font-size:.92rem;color:var(--slate)}

/* Completed — image cards */
.completed-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:26px}
.proj-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-dark);
    transition:transform .45s var(--ease),box-shadow .45s var(--ease);cursor:pointer}
.proj-card:hover{transform:translateY(-10px);box-shadow:var(--shadow-lg)}
.proj-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.proj-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.proj-card:hover .proj-media img{transform:scale(1.1)}
.proj-media::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(10,17,32,.62),transparent 55%)}
.proj-media.noimg{display:grid;place-items:center;cursor:default;
    background:
      radial-gradient(500px 220px at 50% -10%,rgba(31,111,229,.25),transparent 60%),
      radial-gradient(380px 190px at 85% 115%,rgba(255,176,32,.14),transparent 55%),
      var(--ink-2)}
.proj-media.noimg::after{display:none}
.noimg-icon{font-size:3.4rem;color:var(--gold);opacity:.9;filter:drop-shadow(0 10px 24px rgba(255,176,32,.35))}
.done-badge{position:absolute;bottom:14px;left:14px;display:inline-flex;align-items:center;gap:7px;
    background:rgba(24,160,88,.16);border:1px solid rgba(24,160,88,.45);color:#35c97e;
    padding:6px 13px;border-radius:100px;font-family:var(--font-head);font-weight:600;
    font-size:.68rem;letter-spacing:1.5px}
.proj-tag{position:absolute;top:16px;left:16px;z-index:2;background:rgba(255,176,32,.95);color:#20160a;
    font-family:var(--font-head);font-size:.72rem;letter-spacing:.5px;padding:6px 13px;border-radius:100px}
.proj-zoom{position:absolute;bottom:16px;right:16px;z-index:2;width:42px;height:42px;border-radius:50%;
    background:rgba(255,255,255,.18);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.4);
    color:#fff;display:flex;align-items:center;justify-content:center;opacity:0;transform:translateY(8px);transition:.4s}
.proj-card:hover .proj-zoom{opacity:1;transform:translateY(0)}
.proj-body{padding:24px 26px}
.proj-body h4{font-size:1.14rem;color:var(--ink);margin-bottom:8px;line-height:1.25}
.proj-body p{font-size:.92rem;color:var(--slate)}

/* ========== GALLERY ========== */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:220px;gap:16px}
.g-item{position:relative;overflow:hidden;border-radius:14px;cursor:pointer;background:var(--ink-2)}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.g-item::after{content:"\f00e";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;inset:0;
    display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem;
    background:linear-gradient(to top,rgba(31,111,229,.55),rgba(10,17,32,.35));opacity:0;transition:opacity .4s}
.g-item:hover img{transform:scale(1.12)}
.g-item:hover::after{opacity:1}
.g-item.tall{grid-row:span 2}
.g-item.wide{grid-column:span 2}

/* ========== FLEET ========== */
.fleet-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:34px}
.fleet-card{background:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
    transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.fleet-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.fleet-head{position:relative;height:200px;overflow:hidden}
.fleet-head img{width:100%;height:100%;object-fit:cover;transition:transform .8s}
.fleet-card:hover .fleet-head img{transform:scale(1.08)}
.fleet-head::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,var(--ink-2),transparent 70%)}
.fleet-title{position:absolute;bottom:16px;left:22px;z-index:2;display:flex;align-items:center;gap:14px;color:#fff}
.fleet-title i{font-size:1.5rem;color:var(--gold-soft)}
.fleet-title h3{font-size:1.24rem}
.fleet-count{position:absolute;top:16px;right:18px;z-index:2;background:rgba(31,111,229,.9);color:#fff;
    font-family:var(--font-head);font-size:.75rem;letter-spacing:1px;padding:6px 12px;border-radius:100px}
.fleet-list li{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:14px 22px;
    border-bottom:1px solid var(--line);color:#c4d1e8;font-size:.94rem}
.fleet-list li:last-child{border-bottom:none}
.fleet-list li:hover{background:rgba(255,255,255,.03)}
.fleet-list .yr{font-family:var(--font-head);font-size:.76rem;letter-spacing:1px;color:#0a1120;
    background:var(--gold-soft);padding:3px 11px;border-radius:100px;flex-shrink:0}

/* ========== REFERENCES ========== */
.ref-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:22px}
.ref-item{background:#fff;border:1px solid var(--line-dark);border-radius:14px;height:130px;
    display:flex;align-items:center;justify-content:center;padding:22px;transition:.4s var(--ease)}
.ref-item:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue)}
.ref-item img{max-height:80%;max-width:88%;object-fit:contain;filter:grayscale(1);opacity:.55;transition:.4s}
.ref-item:hover img{filter:grayscale(0);opacity:1}

/* ========== CONTACT ========== */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start}
.contact-info .info-box{display:flex;gap:20px;margin-bottom:26px;align-items:flex-start}
.contact-info .info-box i{flex-shrink:0;width:54px;height:54px;border-radius:14px;font-size:1.3rem;color:#fff;
    background:linear-gradient(135deg,var(--blue),var(--blue-deep));display:flex;align-items:center;justify-content:center}
.contact-info .info-box strong{display:block;font-family:var(--font-head);letter-spacing:1px;color:var(--ink);margin-bottom:3px}
.contact-info .info-box p,.contact-info .info-box a{color:var(--slate)}
.contact-card{background:#fff;border:1px solid var(--line-dark);border-radius:var(--radius);padding:42px;box-shadow:var(--shadow)}
.contact-card h3{font-size:1.5rem;color:var(--ink);margin-bottom:8px}
.contact-card .sub{color:var(--slate);margin-bottom:28px;font-size:.95rem}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{position:relative;margin-bottom:24px}
.form-group input,.form-group textarea{width:100%;padding:15px 16px;border:1.5px solid #dbe2ef;border-radius:10px;
    font-family:var(--font-body);font-size:.98rem;background:#f8fafd;transition:.3s;outline:none;color:#1f2b45}
.form-group textarea{resize:vertical;min-height:120px}
.form-group input:focus,.form-group textarea:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(31,111,229,.10)}
.form-group label{display:block;font-family:var(--font-head);font-size:.8rem;letter-spacing:1px;color:#4a5876;margin-bottom:8px}
.form-note{font-size:.82rem;color:var(--slate);margin-top:6px}
.form-alert{padding:14px 18px;border-radius:10px;margin-bottom:22px;font-size:.95rem;display:flex;gap:10px;align-items:center}
.form-alert.ok{background:#dcfce7;color:#166534}
.form-alert.err{background:#fee2e2;color:#991b1b}
.map-embed{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-top:16px;line-height:0}
.map-embed iframe{width:100%;height:300px;border:0}

/* ========== PAGE HERO (iç sayfalar) ========== */
.page-hero{position:relative;padding:170px 0 80px;background:var(--ink);overflow:hidden;text-align:center}
.page-hero .ph-bg{position:absolute;inset:0}
.page-hero .ph-bg img{width:100%;height:100%;object-fit:cover;opacity:.24}
.page-hero .ph-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,17,32,.75),var(--ink))}
.page-hero .hero-grid-overlay{opacity:.4}
.page-hero-inner{position:relative;z-index:3;color:#fff}
.page-hero h1{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:700;margin-bottom:16px}
.page-hero .crumbs{display:inline-flex;gap:10px;align-items:center;color:#8ba0c4;font-size:.88rem;
    font-family:var(--font-head);letter-spacing:1px}
.page-hero .crumbs a:hover{color:var(--gold-soft)}
.page-hero .crumbs .sep{color:var(--gold)}

/* ========== FOOTER ========== */
.footer-cta{background:linear-gradient(135deg,var(--blue-deep),var(--blue));position:relative;overflow:hidden}
.footer-cta::before{content:"";position:absolute;inset:0;opacity:.12;
    background-image:linear-gradient(45deg,#fff 1px,transparent 1px);background-size:22px 22px}
.footer-cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
    gap:30px;padding:54px 0;flex-wrap:wrap}
.footer-cta h3{color:#fff;font-size:clamp(1.3rem,2.6vw,1.9rem);max-width:640px}
.footer-cta p{color:#cfe0ff;margin-top:8px}
#site-footer{background:var(--ink);color:#8ea3c4}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding:70px 24px 40px}
.f-logo{width:170px;filter:brightness(0) invert(1);margin-bottom:20px}
.f-about p{font-size:.94rem;line-height:1.7;max-width:340px}
.f-social{display:flex;gap:12px;margin-top:22px}
.f-social a{width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.06);display:flex;
    align-items:center;justify-content:center;color:#c4d1e8;transition:.35s}
.f-social a:hover{background:var(--blue);color:#fff;transform:translateY(-4px)}
.f-col h4{color:#fff;font-size:1.05rem;letter-spacing:1px;margin-bottom:20px}
.f-col ul li{margin-bottom:12px;font-size:.94rem}
.f-col ul li a:hover{color:var(--gold-soft)}
.f-contact li{display:flex;gap:12px;align-items:flex-start}
.f-contact i{color:var(--blue-light);margin-top:4px}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0}
.footer-bottom .container{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:.86rem}
.dev-link{font-size:.82rem;color:#5b6f92}
.dev-link:hover{color:var(--gold-soft)}

/* ========== FLOAT BUTTONS ========== */
.whatsapp-btn{position:fixed;bottom:28px;right:28px;width:58px;height:58px;border-radius:50%;background:#25D366;
    color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.7rem;z-index:8000;
    box-shadow:0 10px 30px rgba(37,211,102,.45);transition:transform .35s}
.whatsapp-btn::before{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #25D366;animation:ring 2s infinite}
@keyframes ring{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.6);opacity:0}}
.whatsapp-btn:hover{transform:scale(1.1)}
.scroll-top{position:fixed;bottom:96px;right:28px;width:48px;height:48px;border-radius:50%;border:none;cursor:pointer;
    background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;z-index:8000;
    opacity:0;transform:translateY(20px);pointer-events:none;transition:.4s var(--ease)}
.scroll-top.show{opacity:1;transform:translateY(0);pointer-events:auto}
.scroll-top:hover{background:var(--blue)}

/* ========== LIGHTBOX ========== */
.lightbox{position:fixed;inset:0;background:rgba(6,10,20,.94);z-index:99999;display:none;align-items:center;justify-content:center;backdrop-filter:blur(6px)}
.lightbox.open{display:flex;animation:fadeUp .3s}
.lb-img{max-width:90vw;max-height:86vh;border-radius:10px;box-shadow:0 30px 80px rgba(0,0,0,.7)}
.lb-close{position:absolute;top:24px;right:34px;color:#fff;font-size:2.6rem;cursor:pointer;line-height:1}

/* ========== REVEAL ANIM ========== */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.4s}
@media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none}
    .ex-boom,.ex-stick,.ex-bucket,.ex-machine,.ex-smoke,.ex-dust,.loader-logo,.pt-logo img{animation:none!important}
}

/* ========== RESPONSIVE ========== */
@media (max-width:1024px){
    .hero-inner{grid-template-columns:1fr;gap:20px}
    .scene3d-wrap{height:min(56vh,480px)}
    .tilt-grid{grid-template-columns:repeat(2,1fr)}
    .fleet-grid,.contact-grid,.split{grid-template-columns:1fr;gap:40px}
    .about-visual{max-width:480px;margin:0 auto 30px}
    .footer-grid{grid-template-columns:1fr 1fr}
    .gallery-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:768px){
    .section{padding:80px 0}
    .desktop-nav,.header-cta{display:none}
    .mobile-toggle{display:flex}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .stat{border-bottom:1px solid rgba(255,255,255,.14)}
    .stat:nth-child(odd){border-right:1px solid rgba(255,255,255,.14)}
    .stat:nth-child(even){border-right:none}
    .tilt-grid{grid-template-columns:1fr}
    .gallery-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:170px}
    .g-item.wide{grid-column:span 1}
    .g-item.tall{grid-row:span 1}
    .form-row{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr;gap:30px}
    .footer-cta-inner{flex-direction:column;text-align:center;align-items:center}
    .exp-badge{left:50%;transform:translateX(-50%)}
    .about-visual .frame{transform:none}
    .hero h1{font-size:2.4rem}
}
@media (max-width:480px){
    .container{padding:0 18px}
    .tabs{flex-direction:column;border-radius:16px;width:100%}
    .tab-btn{width:100%}
    .completed-grid,.ongoing-grid{grid-template-columns:1fr}
}