/* ============================================================
   MERCAN İNŞAAT & MERMER — style.css
   ============================================================ */
:root{
  --blue:#114e84;
  --blue-600:#0d3f6c;
  --blue-700:#0a3055;
  --blue-100:#e7f0f8;
  --slate:#3a3a3a;
  --slate-900:#262626;
  --ink:#222222;
  --muted:#6a6a6a;
  --line:#e8e8e8;
  --paper:#ffffff;
  --tint:#f5f5f6;
  --accent:#114e84;        /* accent on light backgrounds */
  --accent-soft:#8fb9e6;   /* accent on dark backgrounds */
  --radius:7px;
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-sm:0 2px 10px rgba(20,40,60,.06);
  --shadow-md:0 18px 50px -20px rgba(17,40,70,.35);
  --shadow-lg:0 40px 90px -30px rgba(12,30,55,.5);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Montserrat',system-ui,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.ic{width:1em;height:1em;fill:currentColor;flex:none}
em{font-style:italic;color:var(--blue)}
::selection{background:var(--blue);color:#fff}

.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:32px}

/* ===== SECTION PRIMITIVES ===== */
.section{padding:96px 0}
.section,.cta{scroll-margin-top:88px}
.section--tint{background:var(--tint)}
.overline{
  font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--blue);margin-bottom:18px;display:flex;align-items:center;gap:12px;
}
.overline::before{content:"";width:28px;height:2px;background:var(--accent)}
.overline--light{color:#cdd9e6}
.overline--light::before{background:var(--accent-soft)}
.section__title{
  font-size:clamp(26px,2.8vw,38px);font-weight:700;line-height:1.2;letter-spacing:-.01em;
  color:var(--slate);max-width:20ch;
}
.section__title em{font-weight:700}
.section__title--light{color:#fff;max-width:22ch}
.section__title--blue{color:var(--blue)}
.section__head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:52px;flex-wrap:wrap}
.section__intro{max-width:340px;color:var(--muted);font-size:15px}
.section__head-cta{white-space:nowrap}

/* ===== BUTTONS ===== */
.btn{
  --bg:var(--blue);--fg:#fff;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 30px;font-weight:600;font-size:13px;letter-spacing:.08em;text-transform:uppercase;
  background:var(--bg);color:var(--fg);border:1.5px solid var(--bg);cursor:pointer;
  position:relative;overflow:hidden;transition:.4s var(--ease);border-radius:var(--radius);
}
.btn::after{content:"";position:absolute;inset:0;background:var(--fg);transform:scaleX(0);transform-origin:right;transition:transform .45s var(--ease);z-index:0;mix-blend-mode:normal;opacity:0}
.btn span,.btn{position:relative}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn--primary{--bg:var(--blue);--fg:#fff}
.btn--primary:hover{background:var(--blue-600);border-color:var(--blue-600)}
.btn--dark{--bg:var(--slate);--fg:#fff}
.btn--dark:hover{background:var(--slate-900);border-color:var(--slate-900)}
.btn--ghost{--bg:transparent;--fg:#fff;border-color:rgba(255,255,255,.5);backdrop-filter:blur(2px)}
.btn--ghost:hover{background:#fff;color:var(--slate);border-color:#fff}
.btn--outline{--bg:transparent;--fg:var(--slate);border-color:var(--line)}
.btn--outline:hover{background:var(--slate);color:#fff;border-color:var(--slate)}
.btn--lg{padding:16px 34px;font-size:12.5px}
.btn--block{width:100%}
.btn{font-size:12px;padding:14px 28px;white-space:nowrap;line-height:1}
.header__cta{padding:12px 24px;font-size:11.5px;letter-spacing:.06em}

/* ===== PRELOADER ===== */
.preloader{position:fixed;inset:0;z-index:2000;display:grid;place-items:center;overflow:hidden;background:var(--slate-900);transition:opacity .3s var(--ease),visibility .3s}
.preloader.done{opacity:0;visibility:hidden}
.preloader__bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.15);filter:brightness(.5) saturate(.9);animation:preloaderZoom 6s ease-out forwards}
@keyframes preloaderZoom{to{transform:scale(1)}}
.preloader__overlay{position:absolute;inset:0;background:linear-gradient(160deg,rgba(17,40,70,.72) 0%,rgba(38,38,38,.86) 55%,rgba(18,18,20,.94) 100%)}

.preloader__inner{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:22px}
.preloader__ring{position:relative;width:112px;height:112px;display:grid;place-items:center}
.preloader__ring::before{content:"";position:absolute;inset:0;border-radius:50%;border:1.5px solid rgba(255,255,255,.16)}
.preloader__ring::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid transparent;border-top-color:var(--accent-soft);border-right-color:var(--accent-soft);animation:ringSpin 1.1s linear infinite}
.preloader__logo{width:76px;height:76px;object-fit:contain;filter:brightness(0) invert(1);animation:logoPulse 2s ease-in-out infinite}
@keyframes ringSpin{to{transform:rotate(360deg)}}
@keyframes logoPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.07);opacity:.85}}

.preloader__label{font-size:11px;font-weight:700;letter-spacing:.28em;color:#fff;text-transform:uppercase;opacity:.88}
.preloader__bar{width:140px;height:2px;background:rgba(255,255,255,.15);overflow:hidden;position:relative;border-radius:2px}
.preloader__bar::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,var(--accent-soft),transparent);transform:translateX(-100%);animation:load 1.3s var(--ease) infinite}
@keyframes load{to{transform:translateX(100%)}}

/* ===== HEADER ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:50;background:transparent;transition:background .4s var(--ease),box-shadow .4s var(--ease)}
.header.solid{background:rgba(255,255,255,.97);box-shadow:0 1px 0 var(--line),0 10px 30px -22px rgba(0,0,0,.25);backdrop-filter:blur(10px)}
.header__row{display:flex;align-items:center;justify-content:space-between;gap:24px;height:84px;position:relative;transition:height .35s var(--ease)}
.header.solid .header__row{height:72px}
.brand__logo{height:42px;width:auto;transition:.35s}
.header.solid .brand__logo{height:38px}
.nav{display:flex;gap:30px;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);margin:0}
.header__right{display:flex;align-items:center;gap:20px}
.header__phone{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--slate);letter-spacing:.01em;transition:color .3s;white-space:nowrap}
.header__phone .ic{font-size:16px;color:var(--blue)}
.header:not(.solid) .header__phone{color:#fff}
.header:not(.solid) .header__phone .ic{color:var(--accent-soft)}
.header__phone:hover{color:var(--blue)}
.header:not(.solid) .header__phone:hover{color:var(--accent-soft)}
.nav__link{font-size:12.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--slate);padding:6px 0;position:relative;transition:color .3s;white-space:nowrap}
.nav__link::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.nav__link:hover,.nav__link.is-active{color:var(--blue)}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1)}
/* transparent header over hero → white text */
.header:not(.solid) .nav__link{color:rgba(255,255,255,.9)}
.header:not(.solid) .nav__link:hover,.header:not(.solid) .nav__link.is-active{color:#fff}
.header:not(.solid) .nav__link::after{background:var(--accent-soft)}
.header:not(.solid) .brand__logo{filter:brightness(0) invert(1)}
.burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:38px;height:38px;background:none;border:0;cursor:pointer;padding:6px;z-index:901;position:relative}
.burger span{width:24px;height:2px;background:var(--slate);transition:transform .3s var(--ease),opacity .3s var(--ease),background .3s}
.header:not(.solid) .burger span{background:#fff}
.burger.is-active span{background:#fff}
.burger.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-active span:nth-child(2){opacity:0}
.burger.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== MOBILE NAV (full-screen overlay) ===== */
body.mnav-open{overflow:hidden}
.mnav{position:fixed;inset:0;z-index:1100;display:flex;flex-direction:column;overflow:hidden;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .4s var(--ease),visibility .4s}
.mnav.open{opacity:1;visibility:visible;pointer-events:auto}
.mnav__bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.08);transition:transform .8s var(--ease)}
.mnav.open .mnav__bg{transform:scale(1)}
.mnav__overlay{position:absolute;inset:0;background:linear-gradient(165deg,rgba(17,40,70,.82) 0%,rgba(38,38,38,.92) 55%,rgba(18,18,20,.96) 100%)}

.mnav__top{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:22px 24px}
.mnav__logo{height:36px;width:auto;filter:brightness(0) invert(1)}
.mnav__close{display:flex;align-items:center;gap:7px;height:38px;padding:0 16px 0 12px;border-radius:20px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;cursor:pointer;transition:.25s}
.mnav__close:hover{background:rgba(255,255,255,.2)}
.mnav__close .ic{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}

.mnav__links{position:relative;z-index:2;flex:1;display:flex;flex-direction:column;justify-content:center;gap:6px;padding:0 32px}
.mnav__link{display:block;padding:13px 0;font-size:26px;font-weight:700;letter-spacing:-.01em;color:#fff;opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease),color .3s}
.mnav.open .mnav__link{opacity:1;transform:none}
.mnav.open .mnav__link:nth-child(1){transition-delay:.08s}
.mnav.open .mnav__link:nth-child(2){transition-delay:.14s}
.mnav.open .mnav__link:nth-child(3){transition-delay:.2s}
.mnav.open .mnav__link:nth-child(4){transition-delay:.26s}
.mnav.open .mnav__link:nth-child(5){transition-delay:.32s}
.mnav__link span{position:relative}
.mnav__link:hover,.mnav__link.is-active{color:var(--accent-soft)}
.mnav__link.is-active span::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;background:var(--accent-soft)}

.mnav__bottom{position:relative;z-index:2;padding:22px 32px 34px;display:flex;flex-direction:column;gap:14px;border-top:1px solid rgba(255,255,255,.14)}
.mnav__phone{display:flex;align-items:center;gap:10px;color:#fff;font-size:15px;font-weight:600}
.mnav__phone .ic{width:18px;height:18px;fill:var(--accent-soft);color:var(--accent-soft)}

@media(min-width:641px){
  .mnav__links{padding:0 60px}
  .mnav__link{font-size:30px}
}

/* ===== HERO ===== */
.hero{position:relative;height:100vh;min-height:600px;display:flex;align-items:center;overflow:hidden;color:#fff}
.hero__slider{position:absolute;inset:0;z-index:0}
.hero__slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transform:scale(1.06);transition:opacity 1.4s var(--ease)}
.hero__slide.is-active{opacity:1;animation:kenburns 8s ease-out forwards}
@keyframes kenburns{from{transform:scale(1.03)}to{transform:scale(1.12)}}
.hero__overlay{position:absolute;inset:0;z-index:1;background:
  linear-gradient(100deg,rgba(20,22,24,.88) 0%,rgba(17,40,70,.5) 50%,rgba(20,22,24,.32) 100%),
  linear-gradient(to top,rgba(18,18,20,.7) 0%,transparent 46%)}
.hero__content{position:relative;z-index:2;padding-top:24px;max-width:640px}
.hero__title{font-size:clamp(30px,3.6vw,50px);font-weight:300;line-height:1.14;letter-spacing:-.01em;margin:0 0 22px}
.hero__title em{color:#fff;font-style:normal;font-weight:700;position:relative;display:inline-block}
.hero__title em::after{content:"";position:absolute;left:0;bottom:.04em;width:100%;height:2px;background:var(--accent-soft);opacity:.85}
.hero__lead{max-width:490px;font-size:16px;font-weight:400;color:#dfe4ea;margin-bottom:32px;line-height:1.75}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap}
.hero__foot{position:absolute;left:50%;transform:translateX(-50%);bottom:30px;z-index:2;display:flex;align-items:center;justify-content:space-between}
.hero__dots{display:flex;gap:10px}
.hero__dot{width:30px;height:3px;background:rgba(255,255,255,.32);border:0;cursor:pointer;padding:0;transition:.4s var(--ease);border-radius:2px}
.hero__dot.is-active{background:#fff;width:46px}
.hero__dot:hover{background:rgba(255,255,255,.6)}
.hero__scroll{display:flex;align-items:center;gap:12px;font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:#c6d0da}
.hero__scroll i{width:46px;height:1px;background:linear-gradient(to right,var(--accent-soft),transparent);position:relative;overflow:hidden}
.hero__scroll i::after{content:"";position:absolute;top:0;left:0;height:100%;width:40%;background:#fff;animation:scrolldot 1.8s var(--ease) infinite}
@keyframes scrolldot{0%{transform:translateX(-100%)}100%{transform:translateX(300%)}}

/* ===== ABOUT ===== */
.about--marble{
  background-image:linear-gradient(rgba(255,255,255,.82),rgba(255,255,255,.82)),url('../img/mermerbg.webp');
  background-size:cover;background-position:center;background-repeat:no-repeat;
}
/* Homepage about: fit to one viewport */
#hakkimizda{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding-top:104px;padding-bottom:52px}
#hakkimizda .about__media-main img{aspect-ratio:auto;height:clamp(360px,58vh,540px)}
.about__grid{display:grid;grid-template-columns:0.9fr 1fr;gap:64px;align-items:center}
.about__media{position:relative;padding-bottom:54px;padding-right:54px}
.about__media-main{overflow:hidden;border-radius:var(--radius);box-shadow:var(--shadow-md)}
.about__media-main img{aspect-ratio:4/5;object-fit:cover;width:100%;transition:transform 1.2s var(--ease)}
.about__media:hover .about__media-main img{transform:scale(1.05)}
.about__media-sub{position:absolute;right:0;bottom:0;width:50%;border:6px solid #fff;border-radius:var(--radius);box-shadow:var(--shadow-md);overflow:hidden}
.about__media-sub img{aspect-ratio:4/3;object-fit:cover}
.about__badge{position:absolute;left:-12px;top:32px;background:var(--blue);color:#fff;padding:16px 22px;border-radius:var(--radius);box-shadow:var(--shadow-md);display:flex;flex-direction:column;z-index:2}
.about__badge-num{font-size:26px;font-weight:700;line-height:1}
.about__badge-txt{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:#cfe0f0;margin-top:5px}
.about__text{color:var(--muted);margin-bottom:16px;font-size:15px;line-height:1.75}
.about__list{list-style:none;margin:24px 0 30px;display:grid;gap:12px}
.about__list li{display:flex;align-items:center;gap:13px;font-weight:600;color:var(--slate);font-size:14.5px}
.about__list .ic{font-size:14px;fill:#fff;color:#fff;background:var(--blue);width:24px;height:24px;padding:5px;border-radius:50%;flex:none}

/* ===== SERVICES ===== */
.services__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.service{background:#fff;box-shadow:var(--shadow-sm);border:1px solid var(--line);overflow:hidden;transition:.5s var(--ease);display:flex;flex-direction:column}
.service:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}
.service__media{position:relative;overflow:hidden;aspect-ratio:3/2}
.service__media img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.service:hover .service__media img{transform:scale(1.08)}
.service__no{position:absolute;top:16px;left:16px;font-size:13px;font-weight:700;letter-spacing:.1em;color:#fff;background:rgba(17,78,132,.85);padding:6px 12px;backdrop-filter:blur(4px)}
.service__body{padding:26px 26px 28px}
.service__title{font-size:19px;font-weight:700;color:var(--slate);margin-bottom:10px}
.service__body p{color:var(--muted);font-size:14.5px;line-height:1.7;margin-bottom:18px}
.service__link{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--blue)}
.service__link .ic{font-size:18px;transition:transform .35s var(--ease)}
.service:hover .service__link .ic{transform:translateX(6px)}

/* ===== SERVICES ===== */
.services{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding-top:104px;padding-bottom:52px}
.services .section__intro{color:#4a4a4a}
.services .srvx__num{color:#565656}
.services--marble{
  background-image:linear-gradient(rgba(246,246,247,.88),rgba(246,246,247,.88)),url('../img/mermerbg2.webp');
  background-size:cover;background-position:center;background-repeat:no-repeat;
}

/* ===== SERVICES — interactive (image swaps on hover) ===== */
.srvx{display:grid;grid-template-columns:1.02fr 1fr;grid-template-rows:clamp(440px,56vh,540px);gap:56px;align-items:stretch}
.srvx__media{position:relative;height:100%;min-height:0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);background:#e9ebee}
.srvx__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .6s var(--ease)}
.srvx__img.is-active{opacity:1}
.srvx__no{position:absolute;left:22px;bottom:18px;z-index:2;font-size:12px;font-weight:700;letter-spacing:.14em;color:#fff;opacity:.8}
.srvx__list{height:100%;min-height:0;display:flex;flex-direction:column;justify-content:flex-start}
.srvx__item{border-top:1px solid var(--line);cursor:pointer}
.srvx__item:last-child{border-bottom:1px solid var(--line)}
.srvx__bar{display:flex;align-items:center;gap:22px;padding:24px 6px}
.srvx__num{font-size:13px;font-weight:700;letter-spacing:.05em;color:var(--muted);min-width:22px;transition:color .35s}
.srvx__title{font-size:clamp(20px,2vw,26px);font-weight:700;color:var(--slate);flex:1;letter-spacing:-.01em;transition:color .35s}
.srvx__arrow{width:22px;height:22px;fill:var(--blue);color:var(--blue);opacity:0;transform:translateX(-8px);transition:opacity .35s var(--ease),transform .35s var(--ease)}
.srvx__panel{max-height:0;overflow:hidden;opacity:0;padding-left:44px;transition:max-height .45s var(--ease),opacity .4s var(--ease)}
.srvx__panel p{color:#3f3f3f;font-weight:500;font-size:15px;line-height:1.7;margin:0 0 14px;max-width:48ch}
.srvx__item.is-active .srvx__num{color:var(--blue)}
.srvx__item.is-active .srvx__title{color:var(--blue)}
.srvx__item.is-active .srvx__arrow{opacity:1;transform:none}
.srvx__item.is-active .srvx__panel{max-height:200px;opacity:1;padding-bottom:24px}

/* ===== PROJECTS SLIDER ===== */
.pslider__nav{display:flex;gap:10px}
.pslider__arrow{width:46px;height:46px;border-radius:50%;border:1.5px solid var(--line);background:#fff;color:var(--slate);display:grid;place-items:center;cursor:pointer;transition:.3s var(--ease)}
.pslider__arrow .ic{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.pslider__arrow:hover{background:var(--blue);border-color:var(--blue);color:#fff;transform:translateY(-2px)}
.pslider__arrow:disabled{opacity:.35;cursor:default;transform:none;background:#fff;border-color:var(--line);color:var(--slate)}

.pslider{overflow:hidden;margin:0 -4px}
.pslider__track{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:4px;-ms-overflow-style:none;scrollbar-width:none}
.pslider__track::-webkit-scrollbar{display:none}

.pslide{position:relative;flex:0 0 auto;width:min(360px,78vw);aspect-ratio:3/4;border-radius:var(--radius);overflow:hidden;display:block;scroll-snap-align:start;box-shadow:var(--shadow-sm)}
.pslide__img{position:absolute;inset:0;background-size:cover;background-position:center;filter:grayscale(.5) contrast(1.02);transform:scale(1.02);transition:transform 1s var(--ease),filter .6s}
.pslide:hover .pslide__img{transform:scale(1.08);filter:grayscale(0)}
.pslide__shade{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,25,35,.92) 0%,rgba(15,25,35,.28) 48%,rgba(15,25,35,.05) 80%);transition:.5s}
.pslide:hover .pslide__shade{background:linear-gradient(to top,rgba(11,48,85,.94) 0%,rgba(11,48,85,.32) 55%,rgba(11,48,85,.08) 100%)}
.pslide__info{position:absolute;left:0;bottom:0;padding:26px 24px;z-index:2;color:#fff;transform:translateY(6px);transition:transform .5s var(--ease)}
.pslide:hover .pslide__info{transform:translateY(0)}
.pslide__tag{display:inline-block;font-size:10.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-soft);margin-bottom:8px}
.pslide__title{font-size:19px;font-weight:700;line-height:1.2;margin-bottom:5px}
.pslide__meta{font-size:12.5px;color:#cdd6df}
.pslide__info::after{content:"";display:block;width:0;height:2px;background:var(--accent-soft);margin-top:14px;transition:width .5s var(--ease)}
.pslide:hover .pslide__info::after{width:46px}

.pslider__cta{display:flex;justify-content:center;margin-top:44px}

/* ===== WHY US ===== */
.why{position:relative;color:#fff;overflow:hidden}
.why__bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05)}
.why__overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(28,37,44,.96),rgba(17,40,70,.86))}
.why__inner{position:relative;z-index:2}
.why__head{margin-bottom:48px;max-width:680px}
.why__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature{padding:30px 24px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);background:rgba(255,255,255,.03);transition:.45s var(--ease)}
.feature:hover{background:rgba(255,255,255,.07);transform:translateY(-6px);border-color:rgba(143,185,230,.45)}
.feature__ic{width:34px;height:34px;fill:var(--accent-soft);color:var(--accent-soft);margin-bottom:18px}
.feature h3{font-size:16px;font-weight:700;margin-bottom:9px}
.feature p{font-size:13.5px;line-height:1.65;color:#c4cdd6}

/* ===== CLIENTS MARQUEE ===== */
.clients{padding:64px 0 56px;background:#fff;overflow:hidden;border-top:1px solid var(--line)}
.clients__title{text-align:center;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:32px}
.marquee{overflow:hidden;position:relative;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee__track{display:flex;align-items:center;gap:26px;white-space:nowrap;width:max-content;animation:marquee 38s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee__track span{font-size:21px;font-weight:700;color:var(--slate);opacity:.3;letter-spacing:-.01em;transition:opacity .3s,color .3s}
.marquee__track span:hover{opacity:1;color:var(--blue)}
.marquee__track i{color:var(--accent);font-style:normal;opacity:.5}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ===== CTA ===== */
.cta{background:linear-gradient(120deg,var(--blue-700),var(--blue));color:#fff;padding:84px 0;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;right:-100px;top:-100px;width:400px;height:400px;border:56px solid rgba(255,255,255,.05);border-radius:50%}
.cta__inner{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;position:relative;z-index:2}
.cta__title{position:relative;z-index:2;text-align:center;font-size:clamp(22px,2.5vw,33px);font-weight:700;line-height:1.2;letter-spacing:-.01em;color:#fff;white-space:nowrap;margin:0 auto 38px}
.cta__title em{color:var(--accent-soft);font-weight:700}
.cta__contacts{position:relative;z-index:2;display:flex;gap:18px;justify-content:center;max-width:840px;margin:0 auto}
.cta__contacts .cta__contact{flex:1}
.cta__text h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.2;letter-spacing:-.01em;margin:12px 0 14px}
.cta__text h2 em{color:var(--accent-soft);font-weight:700}
.cta__lead{color:#d6e2ee;font-size:15px;max-width:420px;line-height:1.7}
.cta__box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:30px;backdrop-filter:blur(6px);display:grid;gap:14px}
.cta__contact{display:flex;align-items:center;gap:15px;padding:16px 18px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);transition:.35s}
.cta__contact:hover{background:rgba(255,255,255,.12);transform:translateX(4px)}
.cta__contact .ic{width:22px;height:22px;fill:var(--accent-soft);color:var(--accent-soft);flex:none}
.cta__contact span{display:flex;flex-direction:column;font-weight:700;font-size:15.5px}
.cta__contact small{font-weight:500;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:#b9c8d8;margin-bottom:2px}

/* ===== FOOTER ===== */
.footer{background:var(--slate-900);color:#aab4bd}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:50px;padding:80px 0 60px}
.footer__logo{height:44px;filter:brightness(0) invert(1);margin-bottom:22px}
.footer__brand p{font-size:14px;max-width:320px;margin-bottom:22px}
.footer__col h4{color:#fff;font-size:14px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:22px}
.footer__col a{display:block;font-size:14px;padding:7px 0;transition:.3s;color:#aab4bd}
.footer__col a:hover{color:#fff;padding-left:6px}
.footer__contact{display:flex;align-items:center;gap:10px}
.footer__contact .ic{color:var(--accent-soft);font-size:17px}
.footer__bar{border-top:1px solid rgba(255,255,255,.08)}
.footer__bar-row{display:flex;justify-content:space-between;align-items:center;padding:22px 0;font-size:13px;color:#7e8a94;flex-wrap:wrap;gap:8px}
.footer__credit-link{display:inline-flex;align-items:center;transition:opacity .3s}
.footer__credit-link:hover{opacity:.8}
.footer__credit-logo{height:34px;width:auto;display:block}

/* ===== FAB ===== */
.fab{position:fixed;right:24px;bottom:24px;z-index:80;width:56px;height:56px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:24px;box-shadow:0 12px 30px -8px rgba(17,78,132,.7);transition:.35s;opacity:0;transform:scale(.6) translateY(20px);pointer-events:none}
.fab.show{opacity:1;transform:none;pointer-events:auto}
.fab:hover{background:var(--blue-600);transform:translateY(-4px) scale(1.05)}
.fab::before{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--blue);animation:ping 2s var(--ease) infinite}
@keyframes ping{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.7);opacity:0}}

/* ===== REVEAL ANIM ===== */
.reveal{opacity:0;transform:translateY(38px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.1s}
.reveal[data-d="2"]{transition-delay:.2s}
.reveal[data-d="3"]{transition-delay:.3s}

/* ===== PAGE HERO (inner pages) ===== */
.pagehero{position:relative;padding:158px 0 74px;color:#fff;overflow:hidden}
.pagehero__bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.04)}
.pagehero__overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(20,22,24,.9) 0%,rgba(17,40,70,.7) 60%,rgba(20,22,24,.55) 100%)}
.pagehero__inner{position:relative;z-index:2}
.pagehero h1{font-size:clamp(28px,3.6vw,44px);font-weight:700;letter-spacing:-.01em;line-height:1.15}
.pagehero p{color:#d5dde5;font-size:15.5px;margin-top:12px;max-width:56ch}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.04em;color:#b7c2cd;margin-bottom:18px;text-transform:uppercase}
.breadcrumb a{color:#b7c2cd;transition:color .3s}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{color:var(--accent-soft)}
.breadcrumb i{opacity:.5;font-style:normal}

/* ===== EDITORIAL STORY INTRO ===== */
.story{max-width:880px;margin:0 auto;text-align:center}
.story .overline{justify-content:center}
.story .section__title{max-width:none;margin:0 auto}
.story__cols{display:grid;grid-template-columns:1fr 1fr;gap:40px;text-align:left;margin-top:36px}
.story__cols p{color:var(--muted);font-size:15px;line-height:1.8}

/* ===== SERVICE DETAIL ROWS ===== */
.srv{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding:70px 0;scroll-margin-top:96px}
.srv+.srv{border-top:1px solid var(--line)}
.srv--rev .srv__media{order:2}
.srv__media{position:relative;overflow:hidden;border-radius:var(--radius);box-shadow:var(--shadow-md)}
.srv__media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 1.1s var(--ease)}
.srv__media:hover img{transform:scale(1.05)}
.srv__no{position:absolute;top:16px;left:16px;font-size:12px;font-weight:700;letter-spacing:.1em;color:#fff;background:rgba(17,78,132,.9);padding:6px 12px;border-radius:4px}
.srv__body h2{font-size:clamp(23px,2.4vw,30px);font-weight:700;color:var(--slate);margin:10px 0 14px;letter-spacing:-.01em}
.srv__body p{color:var(--muted);font-size:15px;line-height:1.75;margin-bottom:18px}
.srv__list{list-style:none;display:grid;gap:11px;margin-bottom:26px}
.srv__list li{display:flex;align-items:center;gap:12px;font-size:14.5px;font-weight:600;color:var(--slate)}
.srv__list .ic{width:22px;height:22px;fill:#fff;color:#fff;background:var(--blue);padding:5px;border-radius:50%;flex:none}

/* ===== VALUES / STATS (about) ===== */
.vgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.vcard{padding:30px 26px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:.4s var(--ease)}
.vcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent}
.vcard__ic{width:34px;height:34px;fill:var(--blue);color:var(--blue);margin-bottom:16px}
.vcard h3{font-size:16px;font-weight:700;color:var(--slate);margin-bottom:8px}
.vcard p{font-size:13.5px;color:var(--muted);line-height:1.65}

.statband{background:var(--slate);color:#fff}
.statband__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.statband__i{padding:52px 24px;text-align:center;position:relative}
.statband__i+.statband__i::before{content:"";position:absolute;left:0;top:30%;height:40%;width:1px;background:rgba(255,255,255,.14)}
.statband__n{font-size:clamp(30px,3.2vw,42px);font-weight:700;letter-spacing:-.02em;line-height:1}
.statband__n .u{color:var(--accent-soft)}
.statband__l{font-size:12.5px;letter-spacing:.05em;text-transform:uppercase;color:#aeb9c3;margin-top:10px}

/* ===== TIMELINE ===== */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:tl}
.tl{position:relative;padding:28px 26px;background:var(--tint);border-radius:var(--radius);border-left:3px solid var(--blue)}
.tl__year{font-size:22px;font-weight:800;color:var(--blue);margin-bottom:8px}
.tl h3{font-size:16px;font-weight:700;color:var(--slate);margin-bottom:8px}
.tl p{font-size:14px;color:var(--muted);line-height:1.65}

/* ===== FILTERS ===== */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px}
.filter{padding:9px 20px;font-size:12.5px;font-weight:600;letter-spacing:.03em;border:1.5px solid var(--line);background:#fff;color:var(--slate);border-radius:40px;cursor:pointer;transition:.3s}
.filter:hover{border-color:var(--blue);color:var(--blue)}
.filter.is-active{background:var(--blue);border-color:var(--blue);color:#fff}

/* ===== REFERENCE GRID (referanslar page) ===== */
.refgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.refcard{position:relative;overflow:hidden;border-radius:var(--radius);aspect-ratio:4/3;display:block;width:100%;box-shadow:var(--shadow-sm);border:0;padding:0;background:none;font:inherit;text-align:left;cursor:pointer;-webkit-tap-highlight-color:transparent}
.refcard.hide{display:none}
.refcard__img{position:absolute;inset:0;background-size:cover;background-position:center;filter:grayscale(.5) contrast(1.02);transform:scale(1.02);transition:transform 1s var(--ease),filter .6s}
.refcard:hover .refcard__img{transform:scale(1.08);filter:grayscale(0)}
.refcard__shade{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,25,35,.9) 0%,rgba(15,25,35,.2) 50%,transparent 78%);transition:.5s}
.refcard:hover .refcard__shade{background:linear-gradient(to top,rgba(11,48,85,.92) 0%,rgba(11,48,85,.28) 60%,transparent 100%)}
.refcard__info{position:absolute;left:0;bottom:0;padding:22px 24px;z-index:2;color:#fff}
.refcard__tag{font-size:10.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-soft);display:block;margin-bottom:7px}
.refcard__title{font-size:18px;font-weight:700;line-height:1.2;margin-bottom:4px}
.refcard__meta{font-size:12.5px;color:#cdd6df}

/* ===== PROJECT DETAIL MODAL ===== */
body.pmodal-open{overflow:hidden}
.pmodal{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:28px;opacity:0;visibility:hidden;transition:opacity .35s var(--ease),visibility .35s}
.pmodal.is-open{opacity:1;visibility:visible}
.pmodal__overlay{position:absolute;inset:0;background:rgba(18,18,20,.74);backdrop-filter:blur(4px)}
.pmodal__dialog{
  position:relative;z-index:2;background:#fff;width:min(1040px,100%);height:min(640px,88vh);border-radius:14px;overflow:hidden;
  display:grid;grid-template-columns:1.3fr 1fr;grid-template-rows:1fr auto;
  grid-template-areas:"viewer info" "thumbs info";
  box-shadow:0 40px 100px -20px rgba(0,0,0,.55);transform:translateY(24px) scale(.97);transition:transform .4s var(--ease)
}
.pmodal.is-open .pmodal__dialog{transform:none}
.pmodal__close{position:absolute;top:14px;right:14px;z-index:5;display:flex;align-items:center;gap:7px;height:38px;padding:0 16px 0 12px;border-radius:20px;background:rgba(255,255,255,.94);border:0;cursor:pointer;color:var(--slate);font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;transition:.25s;box-shadow:0 4px 14px rgba(0,0,0,.18)}
.pmodal__close:hover{background:#fff;transform:scale(1.04)}
.pmodal__close .ic{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;flex:none}

.pmodal__viewer{grid-area:viewer;position:relative;background:#111214;overflow:hidden;min-height:0}
.pmodal__stage{position:absolute;inset:0}
.pmodal__stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .5s var(--ease)}
.pmodal__stage img.is-active{opacity:1}
.pmodal__nav{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center;border:0;cursor:pointer;color:var(--slate);transition:.25s;z-index:3}
.pmodal__nav:hover{background:#fff;transform:translateY(-50%) scale(1.06)}
.pmodal__nav--prev{left:14px}
.pmodal__nav--next{right:14px}
.pmodal__nav .ic{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.pmodal__count{position:absolute;right:14px;bottom:14px;background:rgba(0,0,0,.55);color:#fff;font-size:12px;font-weight:600;padding:5px 12px;border-radius:20px;z-index:3;letter-spacing:.02em}

.pmodal__thumbs{grid-area:thumbs;display:flex;gap:8px;padding:12px 20px;overflow-x:auto;flex:none;background:#111214;-ms-overflow-style:none;scrollbar-width:none}
.pmodal__thumbs::-webkit-scrollbar{display:none}
.pmodal__thumb{flex:0 0 auto;width:60px;height:44px;border-radius:6px;overflow:hidden;border:2px solid transparent;padding:0;cursor:pointer;opacity:.5;transition:.25s;background:none}
.pmodal__thumb img{width:100%;height:100%;object-fit:cover;display:block}
.pmodal__thumb.is-active{opacity:1;border-color:var(--accent-soft)}
.pmodal__thumb:hover{opacity:1}

.pmodal__info{grid-area:info;padding:60px 28px 28px;overflow-y:auto;border-left:1px solid var(--line);min-height:0}
.pmodal__tag{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--blue)}
.pmodal__title{font-size:22px;font-weight:700;color:var(--slate);margin:8px 0 4px;letter-spacing:-.01em}
.pmodal__meta{font-size:13px;color:var(--muted);display:block;margin-bottom:16px}
.pmodal__desc{font-size:14.5px;line-height:1.8;color:var(--muted);margin-bottom:24px}

@media(max-width:860px){
  .pmodal{padding:0;top:72px}
  .pmodal__dialog{
    width:100%;height:100%;border-radius:0;
    grid-template-columns:1fr;grid-template-rows:auto auto 1fr;
    grid-template-areas:"viewer" "thumbs" "info"
  }
  .pmodal__viewer{height:34vh}
  .pmodal__info{border-left:0;border-top:1px solid var(--line);padding:20px 20px 28px}
  .pmodal__close{top:12px;right:12px}
}

/* ===== CONTACT ===== */
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.cform{display:grid;gap:18px}
.cform__row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--slate)}
.field input,.field textarea{font-family:inherit;font-size:15px;color:var(--ink);padding:13px 15px;border:1.5px solid var(--line);border-radius:var(--radius);background:#fff;transition:.25s;width:100%}
.field textarea{resize:vertical;min-height:130px}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(17,78,132,.1)}
.cinfo{background:var(--slate);color:#fff;border-radius:var(--radius);padding:38px 34px}
.cinfo h3{font-size:19px;font-weight:700;margin-bottom:8px}
.cinfo>p{color:#b9c3cc;font-size:14.5px;line-height:1.7;margin-bottom:26px}
.cinfo__item{display:flex;align-items:flex-start;gap:15px;padding:16px 0;border-top:1px solid rgba(255,255,255,.1)}
.cinfo__item .ic{width:22px;height:22px;fill:var(--accent-soft);color:var(--accent-soft);flex:none;margin-top:2px}
.cinfo__item span{display:flex;flex-direction:column;font-size:15px;font-weight:600}
.cinfo__item small{font-weight:500;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#93a1ad;margin-bottom:3px}
.map{margin-top:0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);line-height:0}
.map iframe{width:100%;height:420px;border:0;display:block;filter:grayscale(.2)}

/* ===== RESPONSIVE ===== */
@media(max-width:1080px){
  .about__grid{grid-template-columns:1fr;gap:60px}
  .about__media{max-width:520px}
  .why__grid{grid-template-columns:repeat(2,1fr)}
  .cta__inner{grid-template-columns:1fr;gap:36px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:40px}
  .vgrid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:1fr}
  .refgrid{grid-template-columns:repeat(2,1fr)}
  .contact__grid{grid-template-columns:1fr;gap:32px}
  .story__cols{grid-template-columns:1fr}
  .srv{grid-template-columns:1fr;gap:32px;padding:52px 0}
  .srv--rev .srv__media{order:0}
  .srv__media{max-width:560px}
}
@media(max-width:900px){
  .nav{display:none}
  .header__right{display:none}
  .burger{display:flex;margin-left:auto}
  .header:not(.solid) .burger span{background:#fff}
  .services__grid{grid-template-columns:1fr;max-width:460px;margin-inline:auto}
  .srvx{grid-template-columns:1fr;grid-template-rows:auto;gap:28px}
  .srvx__media{order:-1;height:auto;aspect-ratio:16/10}
  .srvx__list{height:auto}
  .pslide{width:min(300px,72vw)}
  .pslider__nav{display:none}
}
@media(max-width:640px){
  .container{padding-inline:20px}
  .section{padding:80px 0}
  .hero__slide{background-position:right center}
  .hero__foot{flex-direction:column;align-items:flex-start;gap:16px}
  .hero__scroll{display:none}
  .why__grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .section__head{align-items:flex-start}
  .marquee__track span{font-size:20px}
  .vgrid{grid-template-columns:1fr}
  .statband__grid{grid-template-columns:repeat(2,1fr)}
  .statband__i:nth-child(2)::before,.statband__i:nth-child(4)::before{display:none}
  .refgrid{grid-template-columns:1fr}
  .cform__row{grid-template-columns:1fr}
  .pagehero{padding:130px 0 56px}
  .cta__contacts{flex-direction:column}
  .cta__title{white-space:normal;max-width:22ch}
}