:root{
  --panel:#faf8f6;         /* nötr açık arka plan (kartlar, paneller) */
  --snap:#3842c7;          /* koyu mor-mavi taban (gradient başlangıcı) */
  --snap2:#7597de;         /* yumuşak lavanta mavi (orta geçiş) */
  --snap3:#b9d6ff;         /* açık pastel mavi (gradient bitişi) */
  --text:#1e293b;          /* koyu lacivert-gri yazı (yüksek okunabilirlik) */
  --muted:#12151a;         /* gri-mavi alt metin */
  --primary:#e2725b;       /* pastel kırmızı-turuncu buton rengi */
  --accent:#ffd166;        /* sıcak sarı vurgular */
  --card:#fffdfc;          /* beyazımsı arka plan */
  --border:#d1d5db;        /* açık gri kenar rengi */
}



*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font:16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial;
  color:var(--text);
  background: linear-gradient(120deg, var(--snap), var(--snap2), var(--snap3));
  background-size: 250% 250%;
  animation: bgMove 10s ease-in-out infinite;
}
@keyframes bgMove{
  0%{background-position:0% 50%}
  50%{background-position:100% 50%}
  100%{background-position:0% 50%}
}
body::before{
  content:""; position:fixed; inset:0; pointer-events:none;
  background:
    radial-gradient(700px 380px at 12% -10%, rgba(255,255,255,0.28), transparent 60%),
    radial-gradient(520px 260px at 88% 110%, rgba(255,255,255,0.18), transparent 60%);
  animation: floatGlow 10s ease-in-out infinite alternate;
}
@keyframes floatGlow{from{transform:translateY(0)} to{transform:translateY(-10px)}}

/* Header & Nav (no Contact button) */
.site-header{
  position:sticky; top:0; z-index:40;
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 20px; background:rgba(255,255,255,.68); backdrop-filter: blur(8px); border-bottom:1px solid var(--border);
 box-shadow: 0 6px 20px rgba(0,0,0,.08); border-radius: 0 0 var(--radius) var(--radius); }
.logo{color:#111; text-decoration:none; font-weight:800; letter-spacing:.3px}
.logo span{color:var(--primary)}
.nav-toggle{display:none; background:none; border:none; color:#111; font-size:22px}
.site-nav{display:flex; gap:14px; align-items:center}
.site-nav a{color:#1f2937; text-decoration:none; padding:8px 14px; border-radius:9999px; background:rgba(255,255,255,.6)}
.site-nav a:hover{background:rgba(17,24,39,.06)}
.site-nav a.active{background:rgba(17,24,39,.08); color:#000}

/* Left-aligned hero */
.hero{padding:32px 20px; max-width:1100px; margin:0; text-align:left}
.hero .glow{ font-size: clamp(28px, 5vw, 54px); text-shadow:none }
.fade-in{opacity:0; animation: fade .9s ease forwards .2s}
@keyframes fade{to{opacity:1}}
.hero-cta{display:flex; gap:12px; justify-content:flex-start; margin-top:16px}
.btn{background:#fff5ef; color:#111!important; padding:10px 16px; border-radius:9999px; font-weight:700; border:1.5px solid #f08a4b; box-shadow:0 3px 0 #e8792f20; transition: all var(--transition) }
.btn-ghost{background:transparent; border:1.5px solid #f08a4b; color:#111!important; border-radius:9999px; transition: all var(--transition) }

/* Cards */
.cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:16px; max-width:1100px; margin:8px 20px 24px}
.card{background:var(--panel); border:1px solid var(--border); border-radius:20px; padding:16px; box-shadow: 0 10px 30px rgba(0,0,0,.05)}
.link{color:var(--primary); text-decoration:none}
.link:hover{text-decoration:underline}

/* Pages */
.page{max-width:1100px; margin:0 20px; padding:24px 0}
.underline{display:inline-block; border-bottom:2px solid var(--accent); padding-bottom:6px}
.muted{color:var(--muted)}

/* About */
.about-grid{display:grid; grid-template-columns:190px 1fr; gap:18px; align-items:start}
.about-photo{width:190px; height:230px; border-radius:16px; object-fit:cover; border:1px solid var(--border); box-shadow:0 8px 20px rgba(0,0,0,.08)}

/* Projects: bigger images */
.table-wrap{overflow:auto; border:1px solid var(--border); border-radius:14px; background:rgba(255, 228, 214, .65)}
.projects-table{width:100%; border-collapse:collapse; min-width:880px}
.projects-table th, .projects-table td{padding:12px; border-bottom:1px solid var(--border); vertical-align:middle; text-align:left}
.projects-table img{width:320px; height:196px; object-fit:cover; border-radius:12px; border:1px solid var(--border)}
.projects-table thead th{position:sticky; top:0; background:rgba(255,255,255,.85)}

/* Map */
#mapContainer{position:relative; margin-top:10px; border:1px solid var(--border); border-radius:14px; overflow:hidden; background:#fff}
.map{width:100%; height:540px}
.ol-popup{position:absolute; background:white; padding:8px 12px; border-radius:10px; border:1px solid #ccc; bottom:12px; left:12px; min-width:140px; color:#111}
.ol-popup-closer{position:absolute; top:4px; right:6px; text-decoration:none}

/* Footer */
.site-footer{padding:24px 20px; text-align:left; color:#1e3a8a}

/* Responsive */
@media (max-width: 800px){
  .nav-toggle{display:block}
  .site-nav{position:absolute; inset:56px 12px auto 12px; display:none; flex-direction:column; background:#fff; border:1px solid var(--border); border-radius:12px; padding:10px}
  .site-nav.open{display:flex}
  .about-grid{grid-template-columns:1fr}
}


/* ---- Enhancements ---- */
:root{--panel:#ffe6dc;
  --radius: 22px;
  --radius-lg: 28px;
  --radius-sm: 14px;
  --transition: 220ms ease;
}

*{scroll-behavior:smooth}

.card, .table-wrap, .about-photo, .map, #mapContainer,
.projects-table img, .btn, .site-nav a, .site-header{
  border-radius: var(--radius);
  transition: all var(--transition);
 box-shadow: 0 6px 20px rgba(0,0,0,.08); border-radius: 0 0 var(--radius) var(--radius); }

.projects-table{ border: 2px solid var(--border); border-radius: var(--radius); }
#mapContainer{ border: 2px solid var(--border); border-radius: var(--radius-lg); box-shadow: 0 12px 30px rgba(0,0,0,.12) }

/* Image hover zoom */
.projects-table img{
  transform: translateZ(0);
}
.projects-table img:hover{
  transform: scale(1.06);
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
}

/* Card hover */
.card:hover{
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(0,0,0,.12);
}

/* Buttons & nav links hover focus */
.btn:hover{ filter: brightness(1.06); transform: translateY(-1px) }
.site-nav a:hover{ transform: translateY(-1px) }

/* Smooth table row hover */
.projects-table tbody tr{ transition: background-color var(--transition) }
.projects-table tbody tr:hover{ background: rgba(0,0,0,.04) }

/* Subtle entrance animation */
@keyframes rise {
  from{ opacity:0; transform: translateY(10px); }
  to{ opacity:1; transform: translateY(0); }
}
.hero, .cards, .page{ animation: rise 420ms ease both }

/* Clickable bold school/university links */
.school-link{
  font-weight: bold;
  color: inherit;
  text-decoration: none;
}
.school-link:hover{
  text-decoration: underline;
}

/* Lightbox styles for Beytepe map */
.lightbox-overlay{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.lightbox-overlay.open{ display: flex; }

.lightbox-content{
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(6px);
  padding: 12px;
  border-radius: 16px;
  max-width: 70vw;   /* medium-sized frame */
  max-height: 80vh;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  position: relative;
}
.lightbox-image{
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}
.lightbox-close{
  position: absolute;
  top: -8px;
  right: -8px;
  font-size: 32px;
  line-height: 32px;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  background: rgba(0,0,0,0.75);
  color: #fff;
}
.lightbox-close:hover{ opacity: 0.9; }