/* ============================================================
   MG ZİRVE GRUP — Ana Stylesheet
   Felsefe: "Zirve İnşası" · KOD16 tasarım dili
   Motion: Emil Kowalski ilkeleri (hızlı, ease-out, transform/opacity)
   ============================================================ */

:root{
    /* Renk */
    --primary:#0f1c2e;        /* lacivert */
    --ink:#0b1320;            /* en koyu zemin */
    --slate:#33425a;          /* arduvaz */
    --steel:#64748b;          /* fırçalanmış metal */
    --line:#e3e7ee;           /* ince çerçeve */
    --paper:#ffffff;
    --paper-2:#f6f7f9;
    --text:#1a2230;
    --muted:#5c6b80;
    --accent:#c8a45c;         /* dövme altın (sektörde override edilir) */
    --accent-ink:#0b1320;

    /* Tipografi */
    --font-head:'Montserrat',system-ui,sans-serif;
    --font-body:'Inter',system-ui,sans-serif;

    /* Easing (Emil Kowalski) */
    --ease-out:cubic-bezier(0.22,1,0.36,1);
    --ease-out-quad:cubic-bezier(0.25,0.46,0.45,0.94);
    --ease-in-out:cubic-bezier(0.65,0,0.35,1);
    --ease-spring:cubic-bezier(0.34,1.56,0.64,1);

    /* Ölçü */
    --container:1240px;
    --gap:clamp(40px,6vw,90px);
    --radius:2px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);color:var(--text);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:700;line-height:1.1;margin:0}
picture{display:block}

/* ---------- Tipografi yardımcıları ---------- */
.eyebrow,.section-eyebrow{font-family:var(--font-head);font-size:13px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);display:inline-block;margin-bottom:18px}
.section-title{font-size:clamp(28px,4vw,46px);letter-spacing:.01em;color:var(--primary)}
.container{max-width:var(--container);margin:0 auto;padding:0 clamp(20px,5vw,48px)}
.section{padding:var(--gap) 0}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,70px);align-items:start}
.section-head{max-width:680px;margin-bottom:clamp(36px,5vw,60px)}

/* ---------- Butonlar (keskin, 1px, hover=dolgu değişimi) ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:600;font-size:14px;letter-spacing:.05em;text-transform:uppercase;padding:15px 30px;border:1px solid transparent;border-radius:var(--radius);cursor:pointer;transition:background .18s var(--ease-out),color .18s var(--ease-out),border-color .18s var(--ease-out),transform .18s var(--ease-out)}
.btn:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn-accent:hover{background:transparent;color:var(--accent)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-block{width:100%;justify-content:center}

/* ============================================================
   SAYFA GEÇİŞ PERDESİ (katmanlı)
   ============================================================ */
/* Tam ekranı kaplayan, üst üste binen 3 katman (katmanlı perde) */
#page-curtain{position:fixed;inset:0;z-index:9999;pointer-events:none}
#page-curtain span{position:absolute;inset:0;transform:translateY(100%);transition:transform .45s var(--ease-out)}
#page-curtain span:nth-child(1){background:var(--accent)}
#page-curtain span:nth-child(2){background:var(--primary)}
#page-curtain span:nth-child(3){background:var(--ink)}

/* Ayrılış: alttan yukarı doğru, kademeli olarak ekranı ört */
body.curtain-in #page-curtain span{transform:translateY(0)}
body.curtain-in #page-curtain span:nth-child(2){transition-delay:.07s}
body.curtain-in #page-curtain span:nth-child(3){transition-delay:.14s}

/* Yükleme: önce kapalı (anında), sonra yukarı doğru kademeli kalkar */
body.curtain-cover #page-curtain span{transform:translateY(0);transition:none}
body.curtain-reveal #page-curtain span{transform:translateY(-100%);transition:transform .55s var(--ease-out)}
body.curtain-reveal #page-curtain span:nth-child(2){transition-delay:.07s}
body.curtain-reveal #page-curtain span:nth-child(1){transition-delay:.14s}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;align-items:center;justify-content:space-between;padding:20px clamp(20px,5vw,60px);transition:background .3s var(--ease-out),padding .3s var(--ease-out),box-shadow .3s var(--ease-out)}
.site-header.scrolled{background:rgba(11,19,32,.92);backdrop-filter:saturate(120%) blur(2px);padding:12px clamp(20px,5vw,60px);box-shadow:0 1px 0 rgba(255,255,255,.06)}
.logo{display:inline-flex;align-items:center;gap:12px;color:#fff}
.logo-mark{flex:0 0 auto}
.logo-mark-img{flex:0 0 auto;height:40px;width:auto;display:block}
.logo-text{font-family:var(--font-head);font-weight:600;font-size:15px;letter-spacing:.14em;line-height:1.05;text-transform:uppercase;display:flex;flex-direction:column}
.logo-text strong{font-weight:800;color:var(--accent);display:inline}
.logo-text em{font-style:normal;font-size:11px;letter-spacing:.32em;opacity:.7}
.main-nav .nav-list{display:flex;align-items:center;gap:clamp(14px,2vw,30px);list-style:none;margin:0;padding:0}
.nav-list a{font-family:var(--font-head);font-size:13px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.82);padding:6px 0;position:relative;transition:color .18s var(--ease-out)}
.nav-list a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--accent);transition:width .22s var(--ease-out)}
.nav-list a:hover{color:#fff}
.nav-list a:hover::after{width:100%}
.nav-cta{border:1px solid rgba(255,255,255,.4);padding:9px 20px!important;border-radius:var(--radius)}
.nav-cta:hover{border-color:var(--accent);color:var(--accent)!important}
.nav-cta::after{display:none}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px;z-index:61}
.nav-toggle span{width:26px;height:2px;background:#fff;transition:transform .25s var(--ease-out),opacity .2s var(--ease-out)}

/* ============================================================
   GİRİŞ PORTALI — Sektör pencereleri
   ============================================================ */
.portal{position:relative;display:flex;height:100vh;width:100%;overflow:hidden}
.portal-brand{position:fixed;top:26px;left:clamp(20px,5vw,50px);z-index:30;color:#fff}

/* Giriş başlığı — ilk yüklemede ortada, sonra üste çekilir */
.portal-intro{position:fixed;inset:0;z-index:25;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;pointer-events:none;transition:opacity .6s var(--ease-out),transform .6s var(--ease-out)}
.portal-logo{height:72px;width:auto;margin-bottom:22px;filter:drop-shadow(0 4px 18px rgba(0,0,0,.45))}
.portal-headline .line{display:block;font-family:var(--font-head);font-weight:800;font-size:clamp(34px,7vw,86px);letter-spacing:.06em;color:#fff;text-shadow:0 2px 30px rgba(0,0,0,.4)}
.portal-headline .sub{display:block;margin-top:16px;font-size:clamp(14px,1.6vw,18px);letter-spacing:.04em;color:rgba(255,255,255,.82);max-width:620px;margin-left:auto;margin-right:auto}
.portal-hint{display:inline-block;margin-top:34px;font-family:var(--font-head);font-size:12px;letter-spacing:.32em;text-transform:uppercase;color:var(--accent);animation:hintPulse 2.4s var(--ease-in-out) 8}
@keyframes hintPulse{0%,100%{opacity:.5}50%{opacity:1}}
body.portal-explored .portal-intro{opacity:0;transform:translateY(-10px)}

/* Panel (sektör penceresi) */
.panel{position:relative;flex:1 1 0;overflow:hidden;cursor:pointer;border-left:1px solid rgba(255,255,255,.08);transition:flex-grow .55s var(--ease-out);display:flex;align-items:flex-end;min-width:0}
.panel:first-child{border-left:0}
.panel-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.06);transition:transform .7s var(--ease-out),filter .5s var(--ease-out);filter:grayscale(.3) brightness(.62)}
.panel-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,19,32,.15) 0%,rgba(11,19,32,.35) 45%,rgba(11,19,32,.9) 100%)}
.panel-content{position:relative;z-index:2;width:100%;padding:clamp(22px,3vw,40px);color:#fff;display:flex;flex-direction:column;gap:10px}
.panel-index{font-family:var(--font-head);font-size:13px;font-weight:700;letter-spacing:.3em;color:var(--accent)}
.panel-title{font-family:var(--font-head);font-weight:800;font-size:clamp(17px,1.5vw,24px);letter-spacing:.02em;line-height:1.1;overflow-wrap:break-word;hyphens:auto;transition:font-size .45s var(--ease-out)}
.panel-tagline{font-size:14px;color:rgba(255,255,255,.78);max-width:280px;opacity:0;max-height:0;transform:translateY(8px);transition:opacity .35s var(--ease-out),transform .35s var(--ease-out),max-height .35s var(--ease-out)}
.panel-cta{display:inline-flex;align-items:center;gap:10px;margin-top:6px;font-family:var(--font-head);font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);opacity:0;transform:translateY(8px);transition:opacity .35s var(--ease-out) .05s,transform .35s var(--ease-out) .05s}
.panel-cta svg{transition:transform .25s var(--ease-out)}
/* Üst altın çizgi (dağ hattı imgesi) */
.panel::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--panel-accent,var(--accent));transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease-out);z-index:3}

/* Hover / odak → o panelin penceresi/görseli genişler ve açılır */
@media(hover:hover) and (min-width:861px){
    .portal:hover .panel{flex-grow:.7}                              /* odak dışı paneller orantılı küçülür (~0.7×) */
    .portal:hover .panel-bg{filter:grayscale(.5) brightness(.42)}   /* ve hafifçe kararır (odak öne çıksın) */
    .portal:hover .panel:hover{flex-grow:2.6}                       /* üzerine gelinen ~2.5 kat büyür */
    .panel:hover .panel-bg{transform:scale(1);filter:grayscale(0) brightness(.8)}  /* fotoğraf netleşir ve renklenir */
    .panel:hover .panel-title{font-size:clamp(26px,2.3vw,36px)}     /* başlık tam boyuta büyür */
    .panel:hover .panel-tagline{opacity:1;max-height:120px;transform:none}
    .panel:hover .panel-cta{opacity:1;transform:none}
    .panel:hover::before{transform:scaleX(1)}
    .panel:hover .panel-cta svg{transform:translateX(5px)}
}

/* ============================================================
   SEKTÖR ONE-PAGE
   ============================================================ */
.page-sector{padding-top:0}
.sector-hero{position:relative;min-height:100vh;display:flex;align-items:center;background-size:cover;background-position:center;color:#fff}
.sector-hero__scrim{position:absolute;inset:0;background:linear-gradient(105deg,rgba(11,19,32,.92) 0%,rgba(11,19,32,.55) 55%,rgba(11,19,32,.25) 100%)}
.sector-hero__inner{position:relative;z-index:2;max-width:var(--container);margin:0 auto;padding:120px clamp(20px,5vw,48px) 80px;width:100%}
.sector-hero__title{font-size:clamp(40px,6.5vw,84px);letter-spacing:.01em;max-width:14ch;margin-bottom:22px}
.sector-hero__subtitle{font-size:clamp(16px,1.8vw,21px);color:rgba(255,255,255,.85);max-width:52ch;margin-bottom:38px}
.sector-hero__actions{display:flex;gap:16px;flex-wrap:wrap}
.scroll-cue{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);width:26px;height:42px;border:1px solid rgba(255,255,255,.45);border-radius:14px;z-index:2}
.scroll-cue span{position:absolute;top:8px;left:50%;width:3px;height:8px;background:var(--accent);border-radius:2px;transform:translateX(-50%);animation:scrollCue 1.8s var(--ease-in-out) 10}
@keyframes scrollCue{0%{opacity:0;transform:translate(-50%,0)}40%{opacity:1}100%{opacity:0;transform:translate(-50%,16px)}}

/* Hakkında */
.section-about .about-text p{color:var(--muted);font-size:17px;margin:0 0 18px}
.section-about .about-text p:last-child{margin-bottom:0}

/* İstatistik */
.section-stats{background:var(--primary);color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(20px,3vw,40px);text-align:center}
.stat{padding:14px;border-left:1px solid rgba(255,255,255,.12)}
.stat:first-child{border-left:0}
.stat-value,.stat-suffix{font-family:var(--font-head);font-weight:800;font-size:clamp(36px,5vw,58px);color:var(--accent);line-height:1}
.stat-label{display:block;margin-top:12px;font-size:14px;letter-spacing:.06em;color:rgba(255,255,255,.78)}

/* Hizmetler */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.service-card{background:var(--paper);transition:background .25s var(--ease-out);display:flex;flex-direction:column}
.service-card:hover{background:var(--paper-2)}
.service-media{aspect-ratio:16/10;overflow:hidden;background:var(--primary)}
.service-media img,.service-media picture{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease-out)}
.service-card.has-cover:hover .service-media img{transform:scale(1.05)}
.service-body{padding:clamp(28px,3vw,42px)}
.service-icon{display:inline-flex;align-items:center;justify-content:center;width:54px;height:54px;border:1px solid var(--line);border-radius:var(--radius);color:var(--accent);margin-bottom:22px}
.service-title{font-size:20px;color:var(--primary);margin-bottom:12px}
.service-desc{color:var(--muted);font-size:15px;margin:0}

/* Projeler */
.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,2vw,28px)}
.project-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper)}
.project-media{overflow:hidden;aspect-ratio:3/2}
.project-media img,.project-media picture{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease-out)}
.project-card:hover .project-media img{transform:scale(1.05)}
.project-body{padding:24px}
.project-title{font-size:19px;color:var(--primary);margin-bottom:8px}
.project-desc{color:var(--muted);font-size:14px;margin:0}

/* İletişim */
.section-contact{background:var(--paper-2)}
.contact-lead{color:var(--muted);font-size:17px;margin:6px 0 26px}
.contact-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px}
.contact-list li{font-size:15px;color:var(--text)}
.contact-list strong{font-family:var(--font-head);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--steel);display:block;margin-bottom:2px}
.contact-form label{display:block;font-family:var(--font-head);font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--slate);margin-bottom:16px}
.contact-form label span{color:var(--accent)}
.contact-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form input,.contact-form textarea{width:100%;margin-top:8px;padding:13px 15px;border:1px solid var(--line);border-radius:var(--radius);font-family:var(--font-body);font-size:15px;font-weight:400;letter-spacing:0;text-transform:none;color:var(--text);background:#fff;transition:border-color .2s var(--ease-out),box-shadow .2s var(--ease-out)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(200,164,92,.15)}
.contact-form .hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.flash{padding:14px 18px;border-radius:var(--radius);margin-bottom:18px;font-size:14px;border:1px solid}
.flash-success{background:#eef7f0;border-color:#bcdfc7;color:#1f6b3a}
.flash-error{background:#fcefef;border-color:#e6c0c0;color:#9a2b2b}
.contact-map{margin-top:clamp(36px,5vw,56px);height:380px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.contact-map iframe{display:block;width:100%;height:100%;filter:grayscale(.12)}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7)}
.footer-inner{max-width:var(--container);margin:0 auto;padding:clamp(48px,6vw,80px) clamp(20px,5vw,48px) 40px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:clamp(30px,4vw,60px)}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{font-size:14px;max-width:34ch}
.footer-nav h4,.footer-contact h4{font-family:var(--font-head);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#fff;margin-bottom:18px}
.footer-nav ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.footer-nav a{font-size:14px;transition:color .18s var(--ease-out)}
.footer-nav a:hover{color:var(--accent)}
.footer-contact p{font-size:14px;margin:0 0 10px}
.footer-contact a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);max-width:var(--container);margin:0 auto;padding:20px clamp(20px,5vw,48px);display:flex;justify-content:space-between;align-items:center;font-size:13px}
.admin-link{opacity:.5;transition:opacity .2s var(--ease-out),color .2s var(--ease-out)}
.admin-link:hover{opacity:1;color:var(--accent)}

/* ============================================================
   SCROLL REVEAL (Emil Kowalski)
   ============================================================ */
.reveal{opacity:0;transform:translateY(18px)}
.reveal.is-visible{opacity:1;transform:none;transition:opacity .55s var(--ease-out) var(--rev-delay,0ms),transform .55s var(--ease-out) var(--rev-delay,0ms)}
/* Anime.js: kelime kelime hero başlığı */
.reveal-words{opacity:0}
.reveal-words .rw{display:inline-block;will-change:transform,opacity}
/* Anime.js: "Zirve" zirve çizgisi (hero imzası) */
.hero-peak{display:block;width:clamp(170px,24vw,290px);height:auto;margin-bottom:20px;overflow:visible;opacity:.9}

/* ============================================================
   MOBİL HIZLI İLETİŞİM BARI (giriş portalı hariç, sadece mobil)
   ============================================================ */
.mobile-bar{display:none}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:860px){
    .nav-toggle{display:flex}

    /* Mobil iletişim barı */
    .mobile-bar{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;left:0;right:0;bottom:0;z-index:70;background:rgba(11,19,32,.97);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-top:1px solid rgba(255,255,255,.12)}
    .mobile-bar__item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:9px 6px env(safe-area-inset-bottom);min-height:58px;color:rgba(255,255,255,.85);font-family:var(--font-head);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;border-left:1px solid rgba(255,255,255,.08)}
    .mobile-bar__item:first-child{border-left:0}
    .mobile-bar__item svg{width:22px;height:22px}
    .mobile-bar__item:active{background:rgba(255,255,255,.07)}
    .mobile-bar__wa{color:#25D366}
    /* İçerik/footer barın altında kalmasın */
    body.page-sector{padding-bottom:60px}
    /* Mobil menü açıkken barı gizle */
    body.menu-open .mobile-bar{transform:translateY(110%);transition:transform .25s var(--ease-out)}
    .nav-list{position:fixed;inset:0;flex-direction:column;justify-content:center;gap:26px;background:rgba(11,19,32,.97);transform:translateX(100%);transition:transform .35s var(--ease-out)}
    .main-nav.open .nav-list{transform:none}
    .main-nav.open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .main-nav.open .nav-toggle span:nth-child(2){opacity:0}
    .main-nav.open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

    /* --- Portal: mobil akış --- */
    body.page-portal{overflow:auto}
    .portal{flex-direction:column;height:auto;min-height:100vh;overflow:visible}
    .portal-brand{display:none}                 /* başlık zaten logoyu gösteriyor */

    /* Giriş başlığı akışta bir hero olarak kalır (gizlenmez, boşluk bırakmaz) */
    .portal-intro{position:static;min-height:auto;padding:clamp(60px,16vw,90px) 24px clamp(40px,10vw,60px);background:linear-gradient(180deg,#0b1320 0%,#10203a 100%)}
    .portal-logo{height:60px;margin-bottom:18px}
    body.portal-explored .portal-intro{opacity:1;transform:none}
    .portal-hint{margin-top:24px}

    /* Sektör panelleri: dokunmatik dostu kartlar */
    .panel{flex:0 0 auto;min-height:clamp(220px,40vh,320px);border-left:0;border-top:1px solid rgba(255,255,255,.08)}
    .panel-bg{filter:grayscale(0) brightness(.58);transform:none}
    .panel-scrim{background:linear-gradient(180deg,rgba(11,19,32,.2) 0%,rgba(11,19,32,.55) 55%,rgba(11,19,32,.92) 100%)}
    .panel-content{padding:26px 24px}
    .panel-title{font-size:26px}
    .panel-tagline{opacity:1;max-height:none;transform:none;max-width:none}
    .panel-cta{opacity:1;max-height:none;transform:none}
    .panel::before{transform:scaleX(1)}

    .sector-hero__title{font-size:clamp(30px,8.5vw,44px);word-break:break-word;hyphens:auto}
    .contact-map{height:280px}
    .grid-2,.contact-form .form-row{grid-template-columns:1fr}
    .stats-grid{grid-template-columns:1fr 1fr}
    .stat:nth-child(odd){border-left:0}
    .services-grid,.projects-grid{grid-template-columns:1fr}
    .footer-inner{grid-template-columns:1fr}
}
@media(max-width:520px){
    .stats-grid{grid-template-columns:1fr}
    .stat{border-left:0;border-top:1px solid rgba(255,255,255,.12);padding-top:22px}
    .footer-bottom{flex-direction:column;gap:10px;text-align:center}
}

/* ============================================================
   ERİŞİLEBİLİRLİK — Reduced Motion (KOD16 / Emil Kowalski)
   ============================================================ */
@media(prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
    .reveal,.reveal-words{opacity:1!important;transform:none!important}
}