/* ==========================================================================
   UGA Group International — homepage
   Design tokens & structure per design_handoff_uga_homepage/README.md
   ========================================================================== */

:root{
  /* color tokens */
  --navy-900:#1C2A34;
  --navy-700:#22333F;
  --navy-500:#4E5B65;
  --steel-500:#5A7383;
  --steel-400:#7E97A8;
  --steel-300:#9FB4C2;
  --ivory-100:#F6F2E9;
  --ivory-050:#FBF8F1;
  --ivory-200:#F2ECDF;
  --ivory-300:#EFE9DC;
  --stone-300:#D8D2C6;
  --stone-350:#DFD8CA;
  --stone-250:#E4DED2;
  --stone-400:#C4D0D8;
  --warm-600:#6E6A62;
  --warm-650:#5D5A53;
  --warm-500:#7A756B;
  --warm-450:#8F8A80;
  --warm-400:#9A948A;
  --stone-500:#B3ADA1;

  /* Accessibility-corrected tones for small informational text. These are
     ADDITIONS - no approved token above is modified. Each is the smallest
     darkening of its parent tone that reaches WCAG AA (>=4.5:1) against the
     darkest ivory it is ever painted on (--ivory-200, the active row).
       --steel-600  from --steel-500  #5A7383 -> 4.54:1  (status "Aktif")
       --warm-550   from --warm-500   #7A756B -> 4.53:1  (secondary copy)
     Small informational warm text reuses the existing --warm-600 (4.57:1).
     --steel-500 itself is untouched so the large italic "Bagimsiz
     isletmeler." heading keeps its approved colour (already AA for large
     text at 4.46:1), and the decorative 01-05 ordinals keep --stone-500. */
  --steel-600:#566E7E;
  --warm-550:#736E65;
  --link-navy:#2C3E4C;
  --header-border:#E1DACD;

  /* layout */
  --gutter:clamp(20px,4vw,64px);
  --content-max:1360px;

  /* fonts */
  --font-serif:"Newsreader",Georgia,serif;
  --font-sans:"Archivo",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ivory-100);
  color:var(--navy-700);
  font-family:var(--font-sans);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
h1,h2,p{margin:0}
a{color:var(--link-navy);text-decoration:none;transition:color .3s ease}
a:hover{color:var(--steel-400)}
::selection{background:var(--navy-700);color:var(--ivory-100)}

.wrap{max-width:var(--content-max);margin:0 auto}

:focus-visible{outline:1px solid var(--steel-400);outline-offset:3px}

.skip-link{
  position:absolute;top:-100px;left:var(--gutter);z-index:100;
  background:var(--ivory-100);color:var(--navy-700);
  padding:12px 20px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  transition:top .3s ease;
}
.skip-link:focus{top:12px}

section{scroll-margin-top:96px}
@media (max-width:767px){
  section{scroll-margin-top:72px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

/* ==========================================================================
   Reveal-on-scroll
   ========================================================================== */
[data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .9s cubic-bezier(.22,.7,.2,1), transform 1s cubic-bezier(.22,.7,.2,1);
}
[data-reveal].is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1;transform:none;transition:none}
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:22px var(--gutter);
  background:transparent;
  border-bottom:1px solid rgba(246,242,233,0);
  transition:background .5s ease,padding .5s ease,border-color .5s ease;
}
.site-header.is-solid{
  background:rgba(246,242,233,.94);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom-color:var(--header-border);
  padding-top:14px;padding-bottom:14px;
}

.logo-link{display:flex;align-items:center;flex:none}
.logo-box{position:relative;display:block;height:clamp(38px,4.4vw,56px);aspect-ratio:639/274}
.logo-img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:contain;transition:opacity .45s ease;
}
.logo-navy{opacity:0}
.site-header.is-solid .logo-ivory{opacity:0}
.site-header.is-solid .logo-navy{opacity:1}

.site-nav{
  display:flex;align-items:center;gap:clamp(16px,2.4vw,38px);
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:500;
  color:rgba(246,242,233,.72);
  transition:color .5s ease;
}
.site-header.is-solid .site-nav{color:var(--warm-600)}
.nav-link{color:inherit}
.nav-link:hover{color:var(--steel-400)}

.nav-divider{width:1px;height:13px;background:rgba(246,242,233,.28);transition:background .5s ease}
.site-header.is-solid .nav-divider{background:var(--stone-300)}

.lang-switch{display:flex;align-items:center;gap:7px;letter-spacing:.14em}
.lang-active{color:#F6F2E9;font-weight:600;transition:color .5s ease}
.site-header.is-solid .lang-active{color:var(--navy-700)}
.lang-sep{opacity:.4;color:inherit}
.lang-inactive{color:inherit;opacity:.62}
/* Hover affordance only once EN is a real link; a disabled control must not
   look clickable. Resting appearance is unchanged either way. */
.lang-inactive:not([aria-disabled="true"]):hover{opacity:1;color:var(--steel-400)}
.lang-inactive[aria-disabled="true"]{cursor:default}

.menu-trigger{
  display:none;
  border:0;background:none;padding:6px 0;cursor:pointer;
  font-family:inherit;font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:500;
  color:rgba(246,242,233,.72);transition:color .5s ease;
}
.site-header.is-solid .menu-trigger{color:var(--warm-600)}

@media (max-width:767px){
  .site-nav .nav-link,.site-nav .nav-divider{display:none}
  .menu-trigger{display:block}
}

/* Mobile nav overlay */
.mobile-nav{
  position:fixed;inset:0;z-index:60;background:var(--navy-900);color:var(--ivory-100);
  display:flex;flex-direction:column;
  padding:22px var(--gutter);
}
.mobile-nav[hidden]{display:none}
.mobile-nav-top{display:flex;align-items:center;justify-content:flex-end;gap:24px}
.mobile-nav-top .lang-active{color:var(--ivory-100)}
.mobile-nav-close{
  border:0;background:none;color:var(--ivory-100);font-size:20px;line-height:1;
  cursor:pointer;padding:4px;
}
.mobile-nav-links{
  display:flex;flex-direction:column;margin-top:clamp(40px,10vh,80px);
}
.mobile-nav-links a{
  color:var(--ivory-100);font-family:var(--font-serif);font-weight:400;
  font-size:clamp(28px,7vw,32px);padding:18px 0;
  border-bottom:1px solid rgba(246,242,233,.16);
}
.mobile-nav-links a:hover{color:var(--steel-300)}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative;min-height:100svh;
  display:flex;flex-direction:column;justify-content:flex-end;
  background:var(--navy-900);color:var(--ivory-100);
  padding:0 var(--gutter) clamp(40px,5vw,64px);
  overflow:hidden;
}
.hero-lines{position:absolute;inset:0;pointer-events:none}
.hero-lines span{position:absolute;top:0;bottom:0;width:1px;background:rgba(246,242,233,.07)}
.hero-lines span:nth-child(1){left:25%}
.hero-lines span:nth-child(2){left:50%}
.hero-lines span:nth-child(3){left:75%}
.hero-mark{
  position:absolute;right:clamp(-70px,-4vw,0px);top:14%;
  height:min(58vh,580px);width:auto;opacity:.05;pointer-events:none;
}
.scroll-sentinel{position:absolute;top:82%;left:0;width:1px;height:1px;pointer-events:none}

.hero-inner{position:relative;max-width:var(--content-max);width:100%;margin:0 auto;padding-top:24vh}

.eyebrow{
  display:flex;align-items:center;gap:16px;
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:rgba(246,242,233,.6);
  margin-bottom:clamp(26px,3.5vw,44px);
}
.eyebrow-rule{width:clamp(28px,5vw,64px);height:1px;background:rgba(246,242,233,.35)}

.hero-title{
  font-family:var(--font-serif);font-weight:300;
  font-size:clamp(44px,8.4vw,132px);line-height:1.06;letter-spacing:-.025em;
}
.hero-title .line{display:block}
.hero-title .line-2{padding-left:clamp(0px,4vw,90px)}
.hero-title .line-3{padding-left:clamp(0px,8vw,180px)}
.hero-title .accent{font-style:italic;color:var(--steel-300)}

.hero-foot{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:clamp(24px,4vw,64px);align-items:end;
  margin-top:clamp(40px,6vw,84px);padding-top:26px;
  border-top:1px solid rgba(246,242,233,.16);
}
.hero-copy{grid-column:span 2;max-width:64ch;font-size:clamp(14px,1.15vw,17px);line-height:1.7;color:rgba(246,242,233,.74)}
.hero-cta{justify-self:start;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:rgba(246,242,233,.45)}
.hero-cta a{color:inherit;display:flex;align-items:center;gap:12px}
.hero-cta a:hover{color:var(--steel-400)}
.hero-cta .rule{display:inline-block;width:44px;height:1px;background:rgba(246,242,233,.4)}

@media (max-width:767px){
  .hero-inner{padding-top:18vh}
  .hero-title .line-2,.hero-title .line-3{padding-left:0}
  .hero-copy{grid-column:span 1}
}

/* ==========================================================================
   Section headings shared
   ========================================================================== */
.eyebrow-inline{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--warm-550)}
.eyebrow-inline .num{color:var(--stone-500)}

/* ==========================================================================
   Approach (01)
   ========================================================================== */
.approach{background:var(--ivory-100);padding:clamp(62px,9.4vw,140px) var(--gutter)}
.approach-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:clamp(36px,6vw,110px)}
.approach-content{grid-column:span 2;max-width:1000px}

.rail-sticky{
  position:sticky;top:130px;
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--warm-550);
  display:flex;flex-direction:column;gap:14px;
}
.rail-num{color:var(--stone-500)}
.rail-label{color:var(--navy-700)}
.rail-rule{width:48px;height:1px;background:var(--stone-300)}

.approach-content h2{
  font-family:var(--font-serif);font-weight:300;
  font-size:clamp(28px,4.2vw,62px);line-height:1.12;letter-spacing:-.02em;
  color:var(--navy-700);max-width:24ch;text-wrap:balance;
  margin-bottom:clamp(24px,3vw,40px);
}
.approach-content .lede{
  max-width:58ch;font-size:clamp(14px,1.1vw,16.5px);line-height:1.75;color:var(--warm-600);
  margin-bottom:clamp(38px,5vw,70px);
}

/* Four columns, one row, at all desktop widths — fixed 1fr tracks rather
   than auto-fit/minmax, so a narrower (but still ≥1024px) viewport shrinks
   each column instead of wrapping "Ortak Yetkinlikler" onto a second row. */
.principles{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--stone-300)}
.principle{padding:26px 26px 32px 0;border-bottom:1px solid var(--stone-300)}
.principle-num{font-size:10px;letter-spacing:.2em;color:var(--stone-500);margin-bottom:16px}
.principle-title{font-size:11px;letter-spacing:.18em;text-transform:uppercase;font-weight:600;color:var(--navy-700);margin-bottom:12px}
.principle-copy{font-size:13.5px;line-height:1.65;color:var(--warm-550);max-width:30ch}

@media (max-width:1023px){
  .approach-grid{grid-template-columns:1fr}
  .approach-content{grid-column:span 1;max-width:none}
  .rail-sticky{position:static;top:auto;flex-direction:row;align-items:center;margin-bottom:clamp(28px,4vw,44px)}
  .principles{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  .principles{grid-template-columns:1fr}
}

/* ==========================================================================
   Faaliyet Alanları (02) — interactive portfolio
   ========================================================================== */
.portfolio{background:var(--ivory-050);border-top:1px solid var(--stone-250);padding:clamp(62px,8.6vw,128px) var(--gutter)}

.portfolio-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:26px;
  margin-bottom:clamp(36px,4.8vw,62px);
}
.portfolio-head .eyebrow-inline{margin-bottom:18px}
.portfolio-head h2{
  font-family:var(--font-serif);font-weight:300;
  font-size:clamp(30px,4.6vw,66px);line-height:1.1;letter-spacing:-.02em;
  color:var(--navy-700);max-width:20ch;
}
.portfolio-note{max-width:32ch;font-size:13.5px;line-height:1.7;color:var(--warm-550)}

.portfolio-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(420px,1fr));gap:clamp(28px,4vw,72px);align-items:start}

.area-list{border-top:1px solid var(--stone-300)}
.area-row{
  cursor:pointer;
  display:grid;grid-template-columns:44px 1fr auto;align-items:baseline;
  gap:clamp(12px,2vw,26px);
  padding:clamp(20px,2.4vw,30px) clamp(10px,1.4vw,20px) clamp(20px,2.4vw,30px) 0;
  border-bottom:1px solid var(--stone-300);
  background:transparent;
  transition:background .45s ease,padding-left .45s ease;
}
.area-row:focus-visible{outline-offset:2px}
.area-row.is-active{background:var(--ivory-200);padding-left:18px}

.area-num{font-size:11px;letter-spacing:.14em;color:var(--stone-500);transition:color .4s ease}
.area-row.is-active .area-num{color:var(--steel-400)}

.area-title{
  font-family:var(--font-serif);font-weight:400;
  font-size:clamp(21px,2.5vw,34px);line-height:1.15;letter-spacing:-.01em;
  color:var(--navy-500);transition:color .4s ease;
}
.area-row.is-active .area-title{color:var(--navy-700)}

.area-meta{margin-top:11px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.area-venture{font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--warm-600);transition:color .4s ease}
.area-row.is-active .area-venture{color:var(--steel-600)}

.status{font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;padding:3px 8px;border:1px solid}
.status-active{color:var(--steel-600);border-color:var(--stone-400)}
.status-pending{color:var(--warm-600);border-color:var(--stone-350)}

.area-arrow{
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--steel-400);
  opacity:0;transition:opacity .4s ease;
}
.area-row.is-active .area-arrow{opacity:1}

.portfolio-visual{position:sticky;top:120px}
.portfolio-frame{position:relative;width:100%;aspect-ratio:4/3;background:var(--ivory-300);overflow:hidden}
.panel{position:absolute;inset:0;opacity:0;transition:opacity .6s ease;overflow:hidden}
.panel.is-active{opacity:1}
.panel img{width:100%;height:100%;object-fit:cover;display:block;transform:scale(1);transition:transform 1.2s cubic-bezier(.22,.7,.2,1)}
.panel.is-active img{transform:scale(1.02)}
.panel[data-panel="0"] img{object-position:60% 50%}
.panel[data-panel="1"] img{object-position:58% 50%}
.panel[data-panel="2"] img{object-position:62% 50%}
.panel[data-panel="3"] img{object-position:50% 55%}
.panel[data-panel="4"] img{object-position:50% 50%}

@media (hover:hover) and (pointer:fine){
  .portfolio-frame:hover .panel.is-active img{transform:scale(1.05)}
}

.detail-wrap{position:relative;margin-top:26px;min-height:200px}
.detail{opacity:0;position:absolute;inset:0;transition:opacity .5s ease;pointer-events:none}
.detail.is-active{opacity:1;pointer-events:auto}
.detail-eyebrow{font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--warm-600);margin-bottom:14px}
.detail-copy{max-width:48ch;font-size:14.5px;line-height:1.7;color:var(--warm-650);margin-bottom:20px}
.detail-copy strong{font-weight:600;color:var(--navy-700)}
.detail-chips{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.chip{font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--navy-700);border:1px solid var(--stone-300);padding:8px 14px}
.chip-status{font-size:10px;letter-spacing:.16em;text-transform:uppercase}
.chip-status.status-active{color:var(--steel-600);border:0;padding:0}
.chip-status.status-pending{color:var(--warm-600);border:0;padding:0}
.muted{color:var(--warm-600)}
.detail-brands{display:grid;gap:12px}
.detail-brand{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px}
.detail-brand .chip{padding:7px 12px}
.detail-brand-copy{font-size:13px;line-height:1.6;color:var(--warm-550)}

@media (max-width:1023px){
  .portfolio-grid{grid-template-columns:1fr}
  .portfolio-visual{position:static;top:auto;order:-1;margin-bottom:clamp(28px,4vw,44px)}
  .area-list{order:0}
}
@media (max-width:767px){
  .area-row{grid-template-columns:30px 1fr auto;min-height:56px}
}

/* ==========================================================================
   Hakkımızda (03)
   ========================================================================== */
.about{background:var(--ivory-100);border-top:1px solid var(--stone-250);padding:clamp(62px,8.6vw,128px) var(--gutter)}
.about .eyebrow-inline{margin-bottom:clamp(28px,3.5vw,44px)}
.about-head{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
  gap:clamp(28px,5vw,90px);align-items:end;
  margin-bottom:clamp(40px,5vw,72px);
}
.about-head h2{
  font-family:var(--font-serif);font-weight:300;
  font-size:clamp(28px,4.2vw,60px);line-height:1.14;letter-spacing:-.02em;color:var(--navy-700);
}
.about-head h2 .accent{font-style:italic;color:var(--steel-500)}
.about-head p{max-width:44ch;font-size:14.5px;line-height:1.75;color:var(--warm-600)}

.ventures-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
  border-top:1px solid var(--stone-300);border-left:1px solid var(--stone-300);
}
.venture-cell{padding:26px 22px 30px;border-right:1px solid var(--stone-300);border-bottom:1px solid var(--stone-300)}
.venture-name{font-family:var(--font-serif);font-size:clamp(19px,1.7vw,24px);color:var(--navy-700);letter-spacing:.01em}
.venture-meta{margin-top:10px;font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--warm-600)}
.accent-text{color:var(--steel-600)}

@media (max-width:767px){
  .venture-cell{padding:22px}
  /* minmax(320px,1fr) is wider than the available column at the 320px
     floor once the 20px gutters are subtracted (320 - 40 < 320) — force a
     single column below the mobile breakpoint so it never overflows. */
  .about-head{grid-template-columns:1fr}
}

/* ==========================================================================
   İletişim (04)
   ========================================================================== */
.contact{
  background:var(--navy-900);color:var(--ivory-100);
  padding:clamp(64px,9.4vw,142px) var(--gutter) clamp(56px,7vw,96px);
  position:relative;overflow:hidden;
}
.contact-line{position:absolute;top:0;bottom:0;left:50%;width:1px;background:rgba(246,242,233,.07);pointer-events:none}
.contact-mark{position:absolute;left:-40px;bottom:-60px;height:min(40vh,360px);width:auto;opacity:.045;pointer-events:none}

.contact .wrap{position:relative}
.contact .eyebrow-inline{color:rgba(246,242,233,.5);margin-bottom:clamp(26px,3.5vw,42px)}
.contact .eyebrow-inline .num{color:rgba(246,242,233,.32)}
.contact h2{
  font-family:var(--font-serif);font-weight:300;
  font-size:clamp(30px,5.4vw,80px);line-height:1.08;letter-spacing:-.025em;
  max-width:20ch;text-wrap:balance;margin-bottom:clamp(36px,5vw,60px);
  /* Explicit rather than inherited from .contact — full-opacity ivory on
     navy-900 (~13:1 contrast), well above the 4.5:1 body-text minimum. */
  color:var(--ivory-100);
}
.contact-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:clamp(20px,3vw,44px);
  padding-top:32px;border-top:1px solid rgba(246,242,233,.16);
}

.cta{
  display:inline-flex;align-items:center;gap:14px;
  padding:18px 30px;border:1px solid rgba(246,242,233,.45);
  color:var(--ivory-100);font-size:11px;letter-spacing:.2em;text-transform:uppercase;font-weight:500;
  transition:background .4s ease,color .4s ease,border-color .4s ease;
}
.cta:hover,.cta:focus-visible{background:var(--ivory-100);color:var(--navy-900);border-color:var(--ivory-100)}
.cta:active{opacity:.96}

.domain{font-family:var(--font-serif);font-size:clamp(17px,1.7vw,23px);color:rgba(246,242,233,.82);letter-spacing:.02em}

/* Verified contact details, in the section's existing supporting-text
   language (same sans, same ivory-on-navy treatment as the nav links). */
.contact-details{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:22px;font-size:13px;letter-spacing:.04em;
}
.contact-details a{
  display:inline-block;padding:6px 0;
  color:rgba(246,242,233,.72);transition:color .3s ease;
}
.contact-details a:hover,.contact-details a:focus-visible{color:var(--ivory-100)}
.contact-sep{color:rgba(246,242,233,.32)}

@media (max-width:767px){
  /* The two details stack at narrow widths, so the inline separator would be
     left orphaned at the end of the first line. Taller targets for touch. */
  .contact-details{gap:0}
  .contact-sep{display:none}
  .contact-details a{padding:8px 0}
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{background:var(--navy-900);color:rgba(246,242,233,.5);padding:0 var(--gutter) clamp(32px,4vw,52px)}
.footer-inner{
  padding-top:clamp(32px,4vw,48px);border-top:1px solid rgba(246,242,233,.13);
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:32px;
}
.footer-logo{height:clamp(34px,3.6vw,46px);width:auto;opacity:.9}
.footer-nav{display:flex;flex-wrap:wrap;row-gap:16px;column-gap:clamp(16px,2.6vw,36px);font-size:11px;letter-spacing:.16em;text-transform:uppercase}
.footer-nav a{color:rgba(246,242,233,.55);display:inline-block;padding:6px 0}
.footer-nav a:hover{color:var(--ivory-100)}

@media (max-width:767px){
  /* Touch comfort: each link gets a taller invisible hit area and the
     wrapped lines get more breathing room, with no change to the type. */
  .footer-inner{align-items:flex-start}
  .footer-nav{row-gap:18px}
  .footer-nav a{padding:8px 0}
}
.footer-copy{font-size:11px;letter-spacing:.04em;color:rgba(246,242,233,.38)}