/* ============================================================
   EXXEN GROUP — site stylesheet
   Tokens
   ============================================================ */
:root{
  --ink:        #16202B;   /* deep navy-charcoal text */
  --ink-soft:   #4B5A68;   /* secondary text */
  --paper:      #EEF1EF;   /* pale cool stone background */
  --paper-2:    #E4E9E6;   /* slightly deeper stone, for stripes */
  --card:       #FFFFFF;
  --brand:      #1F3F5C;   /* steel navy */
  --brand-deep: #14293C;   /* darker navy for contrast bands */
  --accent:     #B98A3E;   /* muted antique gold */
  --accent-soft:#E7D3A6;
  --line:       #D7DCD8;

  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "IBM Plex Sans", "Segoe UI", Arial, sans-serif;

  --radius: 4px;
  --container: 1180px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }
a{ color: inherit; }
.u-container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
.u-eyebrow{
  display:inline-block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 14px;
}
.u-visually-hidden{
  position:absolute; width:1px; height:1px; overflow:hidden;
  clip:rect(0 0 0 0); white-space:nowrap;
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--ink);
}

section{ position:relative; }

/* focus visibility */
a:focus-visible, button:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ============================================================
   Header
   ============================================================ */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(238,241,239,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.site-header__bar{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 28px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
}
.brand__mark{ height: 40px; width:auto; }
.brand__name{
  font-family: var(--font-display);
  font-weight:600;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--brand-deep);
}
.brand__name span{ color: var(--accent); }

.main-nav{ display:none; }
.main-nav ul{
  display:flex;
  list-style:none;
  margin:0; padding:0;
  gap: 26px;
}
.main-nav a{
  text-decoration:none;
  font-size: 0.92rem;
  font-weight:500;
  color: var(--ink);
  position:relative;
  padding: 4px 0;
}
.main-nav a::after{
  content:"";
  position:absolute; left:0; right:100%; bottom:-2px;
  height:2px; background: var(--accent);
  transition: right .25s ease;
}
.main-nav a:hover::after,
.main-nav a:focus-visible::after{ right:0; }

.header-cta{
  display:none;
}
.header-cta a{
  text-decoration:none;
  background: var(--brand-deep);
  color:#fff;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight:600;
  letter-spacing:0.02em;
  transition: background .2s ease;
}
.header-cta a:hover{ background: var(--accent); color: var(--ink); }

.nav-toggle{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:38px; height:38px;
  border:1px solid var(--line);
  background:#fff;
  border-radius: var(--radius);
  cursor:pointer;
}
.nav-toggle span{
  display:block; height:2px; width:18px; margin:0 auto;
  background: var(--ink);
}

.mobile-nav{
  display:none;
  flex-direction:column;
  padding: 6px 28px 20px;
  border-top: 1px solid var(--line);
}
.mobile-nav.is-open{ display:flex; }
.mobile-nav a{
  text-decoration:none;
  color: var(--ink);
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}
.mobile-nav a:last-child{ border-bottom:none; }

@media (min-width: 900px){
  .main-nav{ display:block; }
  .header-cta{ display:block; }
  .nav-toggle{ display:none; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero{
  position:relative;
  color:#fff;
  overflow:hidden;
  background: var(--brand-deep);
}
.hero__bg{
  position:absolute; inset:0;
  object-fit: cover;
  width:100%; height:100%;
  opacity: 0.34;
}
.hero__scrim{
  position:absolute; inset:0;
  background: linear-gradient(115deg, rgba(20,41,60,0.97) 20%, rgba(20,41,60,0.78) 55%, rgba(20,41,60,0.55) 100%);
}
.hero__inner{
  position:relative;
  display:grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items:center;
  padding: 74px 28px 64px;
}
.hero__copy{ max-width: 560px; }
.hero__eyebrow{
  font-size:0.75rem; letter-spacing:0.2em; text-transform:uppercase;
  color: var(--accent-soft); font-weight:600; margin-bottom:18px; display:block;
}
.hero__title{
  font-size: clamp(2.1rem, 5.4vw, 3.4rem);
  color:#fff;
  margin-bottom: 20px;
}
.hero__title em{
  font-style: normal;
  color: var(--accent-soft);
}
.hero__text{
  font-size: 1.02rem;
  color: rgba(255,255,255,0.86);
  max-width: 50ch;
  margin-bottom: 30px;
}
.hero__actions{ display:flex; flex-wrap:wrap; gap:14px; }
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  text-decoration:none;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-size:0.92rem;
  font-weight:600;
  letter-spacing:0.02em;
  border: 1px solid transparent;
  cursor:pointer;
  transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn--gold{ background: var(--accent); color: var(--brand-deep); }
.btn--gold:hover{ transform: translateY(-2px); background:#c99b52; }
.btn--ghost{ border-color: rgba(255,255,255,0.5); color:#fff; }
.btn--ghost:hover{ border-color:#fff; background: rgba(255,255,255,0.08); transform: translateY(-2px); }
.btn--dark{ background: var(--brand-deep); color:#fff; }
.btn--dark:hover{ background: var(--brand); transform: translateY(-2px); }

/* signature: building silhouette with sequential glowing windows */
.hero__building{
  position:relative;
  display:flex;
  justify-content:center;
}
.hero__building svg{ width: 100%; max-width: 360px; height:auto; }
.window{
  fill: rgba(255,255,255,0.16);
  animation: winglow 6.4s ease-in-out infinite;
}
.window.gold{ animation-name: winglowgold; }
@keyframes winglow{
  0%,100%{ fill: rgba(255,255,255,0.14); }
  50%{ fill: rgba(255,255,255,0.55); }
}
@keyframes winglowgold{
  0%,100%{ fill: rgba(185,138,62,0.30); }
  50%{ fill: var(--accent); }
}

.hero__strip{
  position:relative;
  border-top: 1px solid rgba(255,255,255,0.16);
  padding: 20px 28px;
}
.hero__strip .u-container{
  display:flex;
  flex-wrap:wrap;
  gap: 14px 34px;
  font-size: 0.86rem;
  color: rgba(255,255,255,0.82);
}
.hero__strip span{ white-space: nowrap; }
.hero__strip strong{ color:#fff; }

@media (min-width: 860px){
  .hero__inner{
    grid-template-columns: 1.15fr 0.85fr;
    padding: 100px 28px 76px;
  }
}

/* ============================================================
   Section shells
   ============================================================ */
.section{ padding: 84px 0; }
.section--tight{ padding: 64px 0; }
.section--paper2{ background: var(--paper-2); }
.section--dark{ background: var(--brand-deep); color: #fff; }
.section--dark h2{ color:#fff; }
.section-head{ max-width: 640px; margin-bottom: 46px; }
.section-head--center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head p{ color: var(--ink-soft); font-size: 1.03rem; }
.section--dark .section-head p{ color: rgba(255,255,255,0.75); }

/* ============================================================
   Intro
   ============================================================ */
.intro{
  display:grid;
  gap: 40px;
  grid-template-columns: 1fr;
}
.intro__lead{
  font-family: var(--font-display);
  font-size: 1.32rem;
  line-height: 1.5;
  color: var(--brand-deep);
}
.intro__body p{ color: var(--ink-soft); margin: 0 0 16px; }
.intro__facts{
  display:grid;
  grid-template-columns: repeat(2,1fr);
  gap: 18px;
  align-content: start;
}
.fact{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.fact dt{
  font-size: 0.7rem; letter-spacing:0.12em; text-transform:uppercase;
  color: var(--accent); font-weight:700; margin-bottom:6px;
}
.fact dd{ margin:0; font-size:0.94rem; color: var(--ink); }

@media (min-width: 900px){
  .intro{ grid-template-columns: 1.2fr 1fr; }
}

/* ============================================================
   Pillars (management approach)
   ============================================================ */
.pillars{
  display:grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
.pillar{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  border-top: 3px solid var(--brand);
}
.pillar__num{
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight:600;
  letter-spacing:0.08em;
  margin-bottom:10px;
  display:block;
}
.pillar h3{ font-size:1.18rem; margin-bottom:10px; }
.pillar p{ color: var(--ink-soft); font-size: 0.95rem; margin:0; }

@media (min-width: 700px){
  .pillars{ grid-template-columns: repeat(2,1fr); }
}
@media (min-width: 1080px){
  .pillars{ grid-template-columns: repeat(4,1fr); }
}

/* ============================================================
   Stats band
   ============================================================ */
.stats{
  display:grid;
  grid-template-columns: 1fr;
  gap: 30px;
  text-align:center;
}
.stat__num{
  font-family: var(--font-display);
  font-size: clamp(2.4rem,6vw,3.4rem);
  color: var(--accent);
  line-height:1;
  margin-bottom: 10px;
}
.stat__label{
  font-size: 0.95rem;
  color: rgba(255,255,255,0.82);
  max-width: 26ch;
  margin: 0 auto;
}
@media (min-width: 760px){
  .stats{ grid-template-columns: repeat(3,1fr); }
}

/* ============================================================
   Services grid
   ============================================================ */
.services{
  display:grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
.service-card{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition: box-shadow .2s ease, transform .2s ease;
}
.service-card:hover{
  box-shadow: 0 14px 30px -18px rgba(20,41,60,0.45);
  transform: translateY(-3px);
}
.service-card__media{
  height: 168px;
  background: var(--paper-2);
  overflow:hidden;
}
.service-card__media img{
  width:100%; height:100%; object-fit:cover;
}
.service-card__icon{
  height: 168px;
  display:flex; align-items:center; justify-content:center;
  background: var(--brand-deep);
}
.service-card__icon svg{ width:52px; height:52px; stroke: var(--accent-soft); }
.service-card__body{ padding: 20px 22px 24px; }
.service-card__body h3{ font-size: 1.04rem; margin-bottom: 8px; }
.service-card__body p{ font-size: 0.88rem; color: var(--ink-soft); margin:0; }

@media (min-width: 640px){
  .services{ grid-template-columns: repeat(2,1fr); }
}
@media (min-width: 980px){
  .services{ grid-template-columns: repeat(3,1fr); }
}
@media (min-width: 1280px){
  .services{ grid-template-columns: repeat(4,1fr); }
}

/* ============================================================
   Documents / belgeler
   ============================================================ */
.docs{
  display:grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items:center;
}
.docs__frame{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.docs__frame img{ border-radius: 2px; }
.docs__copy p{ color: var(--ink-soft); }
@media (min-width: 800px){
  .docs{ grid-template-columns: 320px 1fr; }
}

/* ============================================================
   News
   ============================================================ */
.news{
  display:grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
.news-card{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.news-card time{
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight:700;
}
.news-card h3{ font-size: 1.08rem; margin: 10px 0 10px; }
.news-card p{ color: var(--ink-soft); font-size:0.92rem; margin:0; }
@media (min-width: 760px){
  .news{ grid-template-columns: repeat(2,1fr); }
}

/* ============================================================
   Contact
   ============================================================ */
.contact{
  display:grid;
  grid-template-columns: 1fr;
  gap: 34px;
}
.contact__card{
  background: var(--card);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 34px 30px;
  border: 1px solid var(--line);
}
.contact__list{ list-style:none; margin:0; padding:0; }
.contact__list li{
  display:flex; gap:14px; align-items:flex-start;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.contact__list li:last-child{ border-bottom:none; }
.contact__list svg{ width:20px; height:20px; flex:none; stroke: var(--accent); margin-top:2px; }
.contact__list a{ text-decoration:none; color: var(--ink); font-weight:600; }
.contact__list a:hover{ color: var(--accent); }
.contact__list span{ display:block; font-size:0.74rem; text-transform:uppercase; letter-spacing:0.1em; color: var(--ink-soft); margin-bottom:3px; }

.contact__panel{
  background: var(--brand-deep);
  color:#fff;
  border-radius: var(--radius);
  padding: 34px 30px;
}
.contact__panel h3{ color:#fff; font-size:1.3rem; }
.contact__panel p{ color: rgba(255,255,255,0.78); font-size:0.94rem; }
.contact__panel .btn{ margin-top: 18px; }

@media (min-width: 900px){
  .contact{ grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer{
  background: var(--ink);
  color: rgba(255,255,255,0.72);
  padding: 56px 0 26px;
  font-size: 0.88rem;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 34px;
  margin-bottom: 40px;
}
.footer-col h4{
  color:#fff; font-size:0.82rem; letter-spacing:0.1em; text-transform:uppercase;
  margin-bottom: 16px; font-family: var(--font-body); font-weight:700;
}
.footer-col ul{ list-style:none; margin:0; padding:0; }
.footer-col li{ margin-bottom:9px; }
.footer-col a{ text-decoration:none; color: rgba(255,255,255,0.72); }
.footer-col a:hover{ color: var(--accent-soft); }
.footer-brand .brand__name{ color:#fff; }
.footer-brand p{ margin-top:14px; max-width: 34ch; color: rgba(255,255,255,0.6); }
.footer-bottom{
  border-top: 1px solid rgba(255,255,255,0.14);
  padding-top: 22px;
  display:flex; flex-wrap:wrap; gap:10px 20px; justify-content:space-between;
  color: rgba(255,255,255,0.5);
  font-size: 0.8rem;
}
@media (min-width: 700px){
  .footer-grid{ grid-template-columns: 1.3fr repeat(3,1fr); }
}

/* ============================================================
   Reveal-on-scroll (progressive enhancement)
   ============================================================ */
.reveal{ opacity:0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible{ opacity:1; transform:none; }