/* Radian Enerji — corporate design system v2 */
:root{
  --navy: #0E2A26;
  --navy-soft: #163B35;
  --gold: #D79A3C;
  --gold-deep: #B67F28;
  --green: #3C7A5A;
  --paper: #FBFBF9;
  --mist: #EEF3EF;
  --line: #DDE3DE;
  --text: #1B2420;
  --text-soft: #55625B;
  --on-navy: #F3F5F2;
  --on-navy-soft: #A9BDB6;
  --max: 1140px;
  --radius: 6px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Inter", "Helvetica Neue", Arial, sans-serif;
  font-size:16.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,.label,.wordmark,.btn,.step-num{
  font-family:"Manrope", "Helvetica Neue", Arial, sans-serif;
}

.mono{
  font-family:"IBM Plex Mono", ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
}

a{color:inherit;}
img,svg{max-width:100%;display:block;}

.wrap{max-width:var(--max); margin:0 auto; padding:0 32px;}

/* header */
header.site{
  background:var(--navy);
  color:var(--on-navy);
  position:relative;
  z-index:50;
}
.nav-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 0;
  position:relative;
}
.wordmark{
  font-size:19px;
  font-weight:700;
  letter-spacing:0.01em;
  text-decoration:none;
  color:var(--on-navy);
  display:flex;
  align-items:center;
  gap:9px;
}
.wordmark svg{flex:0 0 auto;}
nav.links{
  display:flex;
  gap:30px;
  font-size:14.5px;
}
nav.links a{
  text-decoration:none;
  color:var(--on-navy-soft);
  padding-bottom:3px;
  border-bottom:1px solid transparent;
  transition:border-color .15s ease, color .15s ease;
}
nav.links a:hover,
nav.links a.current{
  color:var(--on-navy);
  border-bottom-color:var(--gold);
}

/* mobile nav toggle */
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:34px;
  height:34px;
  background:none;
  border:none;
  cursor:pointer;
  padding:0;
  flex:0 0 auto;
}
.nav-toggle span{
  display:block;
  width:100%;
  height:2px;
  background:var(--on-navy);
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* hero (full-bleed photo panel) */
.hero{
  position:relative;
  color:var(--on-navy);
  padding: 110px 0 96px;
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg, rgba(14,42,38,0.94) 0%, rgba(14,42,38,0.86) 40%, rgba(14,42,38,0.55) 75%, rgba(14,42,38,0.35) 100%);
}
.hero .wrap{position:relative; z-index:1;}
.hero.hero-tall{min-height:640px; display:flex; align-items:center;}
.hero-text{max-width:640px;}
.hero h1{
  font-size: clamp(32px, 4vw, 48px);
  line-height:1.14;
  font-weight:700;
  letter-spacing:-0.01em;
  margin: 0 0 20px;
  max-width: 16ch;
}
.hero .dek{
  font-size:17px;
  color:var(--on-navy-soft);
  max-width:48ch;
  margin:0 0 28px;
}

/* infographic (finance flow) */
.infographic{
  display:flex;
  align-items:center;
  gap:0;
  flex-wrap:wrap;
}
.info-step{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--paper);
  padding:20px 20px;
  flex:1 1 200px;
  min-width:180px;
}
.info-step .k{
  font-family:"IBM Plex Mono", monospace;
  font-size:12px;
  color:var(--gold-deep);
  display:block;
  margin-bottom:8px;
}
.info-step h4{
  margin:0 0 6px;
  font-size:15.5px;
  color:var(--text);
}
.info-step p{
  margin:0;
  font-size:13px;
  color:var(--text-soft);
}
.info-arrow{
  flex:0 0 auto;
  width:32px;
  text-align:center;
  color:var(--green);
  font-size:18px;
}
@media (max-width:780px){
  .info-arrow{ width:100%; transform:rotate(90deg); padding:4px 0; }
}

.btn{
  display:inline-block;
  font-size:14.5px;
  font-weight:600;
  color:var(--navy);
  background:var(--gold);
  padding:13px 24px;
  text-decoration:none;
  letter-spacing:0.01em;
  border-radius:var(--radius);
}
.btn:hover{background:#C68B34;}
.btn.on-light{
  background:var(--navy);
  color:var(--on-navy);
}
.btn.on-light:hover{background:var(--navy-soft);}
.btn.secondary{
  background:transparent;
  color:var(--text);
  border:1px solid var(--line);
}
.btn.secondary:hover{border-color:var(--text-soft);}

/* generic section rhythm */
section{padding: 56px 0;}
section.mist{background:var(--mist);}
section.navy{background:var(--navy); color:var(--on-navy);}

.eyebrow{
  font-size:13px;
  font-weight:600;
  color:var(--green);
  margin:0 0 10px;
}
.section-head{
  display:flex;
  gap:40px;
  justify-content:space-between;
  align-items:flex-end;
  margin-bottom: 34px;
}
.section-head h2{
  font-size:26px;
  font-weight:700;
  color:var(--text);
  margin:0;
  max-width: 18ch;
}
section.navy .section-head h2{color:var(--on-navy);}
.section-head .note{
  color:var(--text-soft);
  font-size:15px;
  max-width:36ch;
  margin:0;
}
section.navy .section-head .note{color:var(--on-navy-soft);}

.lede{
  max-width: 62ch;
  color:var(--text-soft);
  font-size:16px;
}

/* experience stats */
.stat-row{
  display:flex;
  gap:24px;
  flex-wrap:wrap;
  margin-top:24px;
}
.stat{
  flex:1 1 220px;
  border-left:2px solid var(--gold);
  padding-left:18px;
}
.stat .num{
  display:block;
  font-family:"Manrope", sans-serif;
  font-weight:700;
  font-size:32px;
  color:var(--text);
  line-height:1.1;
}
.stat .label{
  display:block;
  font-size:14px;
  color:var(--text-soft);
  margin-top:4px;
}
.mv-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.mv-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px 28px;
  background:var(--paper);
}
.mv-card h3{
  font-size:18px;
  margin:0 0 12px;
  color:var(--text);
}
.mv-card p{
  margin:0;
  color:var(--text-soft);
  font-size:15.5px;
}

/* process steps */
.process-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.step{
  border-top:2px solid var(--green);
  padding-top:16px;
}
.step-num{
  font-size:13px;
  color:var(--gold-deep);
  font-weight:700;
  display:block;
  margin-bottom:8px;
}
.step h3{
  font-size:16px;
  margin:0 0 8px;
  color:var(--text);
}
.step p{
  margin:0;
  font-size:14px;
  color:var(--text-soft);
}

/* service cards */
.service-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(260px, 1fr));
  gap:22px;
}
.service-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  background:var(--paper);
}
.service-card .num{
  font-family:"IBM Plex Mono", monospace;
  font-size:13px;
  color:var(--gold-deep);
  display:block;
  margin-bottom:14px;
}
.service-card h3{
  font-size:18px;
  margin:0 0 10px;
  color:var(--text);
}
.service-card p{
  margin:0 0 14px;
  font-size:14.5px;
  color:var(--text-soft);
}
.service-card ul{
  margin:0;
  padding-left:18px;
  font-size:14px;
  color:var(--text-soft);
}
.service-card li{margin-bottom:4px;}

/* sustainability / quote block */
.sustain{
  display:grid;
  grid-template-columns: 6px 1fr;
  gap:24px;
}
.sustain .bar{background:var(--green); border-radius:3px;}
.sustain p{
  font-size: clamp(19px,2.2vw,24px);
  line-height:1.5;
  color:var(--text);
  margin:0;
  max-width:44ch;
  font-family:"Manrope", sans-serif;
  font-weight:500;
}
.sustain .cite{
  margin-top:14px;
  font-size:13.5px;
  color:var(--text-soft);
  font-family:"Inter", sans-serif;
  font-weight:400;
}

/* teaser row */
.teaser-row{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
  gap:22px;
}
.teaser{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 26px;
  background:var(--paper);
  display:flex;
  flex-direction:column;
  gap:14px;
}
.teaser h3{margin:0; font-size:18px; color:var(--text);}
.teaser p{margin:0; color:var(--text-soft); font-size:14.5px; flex-grow:1;}

/* contact */
.contact-block{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:40px;
  align-items:end;
}
.contact-block .email{
  font-size: clamp(24px,3vw,32px);
  font-family:"Manrope", sans-serif;
  font-weight:700;
  color:var(--on-navy);
  text-decoration:none;
  border-bottom:1px solid var(--gold);
  padding-bottom:2px;
}
.contact-block .email:hover{color:var(--gold);}
.contact-meta{
  font-size:14px;
  color:var(--on-navy-soft);
  line-height:1.9;
}

/* footer */
footer{
  background:var(--navy);
  color:var(--on-navy-soft);
  padding: 22px 0 30px;
  font-size:13px;
  border-top:1px solid rgba(255,255,255,0.1);
}
footer .wrap{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:8px 24px;
}

@media (max-width: 860px){
  .hero-grid{grid-template-columns:1fr;}
  .mv-grid{grid-template-columns:1fr;}
  .process-row{grid-template-columns:1fr 1fr;}
  .service-grid{grid-template-columns:1fr;}
  .teaser-row{grid-template-columns:1fr;}
  .contact-block{grid-template-columns:1fr; gap:20px; align-items:start;}
  .section-head{flex-direction:column; align-items:flex-start; gap:10px;}

  .nav-toggle{display:flex;}
  nav.links{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:var(--navy);
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    max-height:0;
    overflow:hidden;
    transition:max-height .25s ease;
    padding:0 32px;
    box-shadow:0 8px 16px rgba(0,0,0,0.15);
  }
  nav.links.open{
    max-height:420px;
    padding:8px 32px 20px;
  }
  nav.links a{
    width:100%;
    padding:12px 0;
    border-bottom:1px solid rgba(255,255,255,0.1);
    font-size:15px;
  }
}

@media (max-width: 600px){
  .wrap{padding:0 20px;}
  .hero{padding:64px 0 56px;}
  .hero.hero-tall{min-height:420px;}
  .hero .dek{font-size:16px;}
  .process-row{grid-template-columns:1fr;}
  section{padding:40px 0;}
  .stat-row{gap:20px;}
  .btn{width:100%; text-align:center;}
  .service-card, .mv-card, .teaser, .info-step{padding:20px 18px;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;}
}