/* Deena Saleh Şahin — academic site, Clean Modern style */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Inter:wght@400;500;600&display=swap');

:root{
  --ink:#1c1c1c;
  --muted:#5c5c5c;
  --accent:#1f6e5c;
  --accent-soft:#e5efec;
  --line:#e7e5e0;
  --paper:#fbfaf8;
  --maxw:900px;
}

*{ box-sizing:border-box; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  line-height:1.65;
}

a{ color:var(--accent); }

img{ max-width:100%; display:block; }

/* Header */
header.site-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  max-width:var(--maxw);
  margin:0 auto;
  padding:32px 24px 24px;
  flex-wrap:wrap;
  gap:12px;
}

.brand{
  font-family:'Fraunces',serif;
  font-size:19px;
  font-weight:500;
  text-decoration:none;
  color:var(--ink);
}

nav.site-nav a{
  color:var(--muted);
  text-decoration:none;
  margin-left:26px;
  font-size:14px;
}
nav.site-nav a:first-child{ margin-left:0; }
nav.site-nav a.active,
nav.site-nav a:hover{ color:var(--accent); }

/* Hero (home page) */
.hero{
  max-width:var(--maxw);
  margin:0 auto;
  padding:70px 24px 60px;
  border-bottom:1px solid var(--line);
}
.hero p.kicker{
  color:var(--accent);
  font-size:13px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  margin:0 0 18px;
  font-weight:600;
}
.hero h1{
  font-family:'Fraunces',serif;
  font-size:44px;
  font-weight:500;
  margin:0 0 14px;
  line-height:1.15;
}
.hero h2{
  font-family:'Inter',sans-serif;
  font-weight:400;
  font-size:18px;
  color:var(--muted);
  margin:0 0 26px;
}
.hero .tagline{
  font-family:'Fraunces',serif;
  font-style:italic;
  font-size:20px;
  color:var(--ink);
  max-width:560px;
  margin:0 0 30px;
}

/* Page header (inner pages) */
.page-head{
  max-width:var(--maxw);
  margin:0 auto;
  padding:20px 24px 40px;
  border-bottom:1px solid var(--line);
}
.page-head p.kicker{
  color:var(--accent);
  font-size:13px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  margin:0 0 12px;
  font-weight:600;
}
.page-head h1{
  font-family:'Fraunces',serif;
  font-size:36px;
  font-weight:500;
  margin:0 0 10px;
}
.page-head p.lede{
  font-size:17px;
  color:var(--muted);
  max-width:620px;
  margin:0;
}

.btnrow a{
  display:inline-block;
  padding:11px 22px;
  border-radius:2px;
  text-decoration:none;
  font-size:14px;
  margin-right:12px;
  margin-top:6px;
}
.btn-primary{ background:var(--accent); color:#fff; }
.btn-primary:hover{ background:#175947; }
.btn-secondary{ border:1px solid var(--line); color:var(--ink); }
.btn-secondary:hover{ border-color:var(--accent); color:var(--accent); }

section{ max-width:var(--maxw); margin:0 auto; padding:52px 24px; }
section h3{
  font-family:'Fraunces',serif;
  font-size:24px;
  font-weight:500;
  margin:0 0 28px;
}
section h4.subhead{
  font-family:'Fraunces',serif;
  font-size:19px;
  font-weight:500;
  margin:36px 0 18px;
}

p.intro{ font-size:16px; max-width:680px; }

/* Avatar placeholder */
.avatar{
  width:140px;
  height:140px;
  border-radius:50%;
  background:linear-gradient(135deg, var(--accent), #59a48d);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-family:'Fraunces',serif;
  font-size:44px;
  font-weight:500;
  flex-shrink:0;
}
.about-top{
  display:flex;
  gap:36px;
  align-items:center;
  flex-wrap:wrap;
}

/* Publication / list items */
.pub{
  padding:20px 0;
  border-top:1px solid var(--line);
}
.pub:last-child{ border-bottom:1px solid var(--line); }
.pub .year{ color:var(--accent); font-size:13px; font-weight:600; letter-spacing:0.05em; }
.pub h5{ margin:6px 0 4px; font-size:16px; font-weight:600; line-height:1.4; }
.pub p{ margin:0; color:var(--muted); font-size:14px; }
.pub a.doi{ font-size:13px; }

/* Simple timeline */
.timeline-item{
  display:grid;
  grid-template-columns:180px 1fr;
  gap:16px;
  padding:14px 0;
  border-top:1px solid var(--line);
}
.timeline-item:last-child{ border-bottom:1px solid var(--line); }
.timeline-item .when{ color:var(--muted); font-size:14px; }
.timeline-item .what{ font-size:15px; }
.timeline-item .what strong{ display:block; margin-bottom:2px; }

/* Cards */
.card-grid{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
@media (max-width:640px){ .card-grid{ grid-template-columns:1fr; } .timeline-item{ grid-template-columns:1fr; gap:4px; } .about-top{ flex-direction:column; align-items:flex-start; } }

.card{
  border:1px solid var(--line);
  border-radius:4px;
  padding:22px;
}
.card h5{ margin:0 0 8px; font-size:16px; }
.card p{ margin:0; color:var(--muted); font-size:14px; }

/* Details / accordion for long lists */
details.course{
  border-top:1px solid var(--line);
  padding:16px 0;
}
details.course:last-of-type{ border-bottom:1px solid var(--line); }
details.course summary{
  cursor:pointer;
  font-weight:600;
  font-size:15px;
  list-style:none;
}
details.course summary::-webkit-details-marker{ display:none; }
details.course summary::before{
  content:"+ ";
  color:var(--accent);
  font-weight:700;
}
details.course[open] summary::before{ content:"− "; }
details.course .meta{ color:var(--muted); font-size:13px; margin:6px 0 10px; }
details.course p{ margin:0; font-size:14px; color:var(--ink); }

details.group{ margin-bottom:10px; }
details.group summary{
  cursor:pointer;
  color:var(--accent);
  font-size:14px;
  font-weight:600;
  padding:8px 0;
}

/* Blog */
.blogcard{
  border:1px solid var(--line);
  border-radius:4px;
  padding:24px;
  margin-bottom:18px;
}
.card-grid .blogcard{ margin-bottom:0; }
.blogcard p.date{ color:var(--muted); font-size:13px; margin:0 0 8px; }
.blogcard h4{ margin:0 0 10px; font-size:19px; font-family:'Fraunces',serif; font-weight:500; }
.blogcard h4 a{ color:var(--ink); text-decoration:none; }
.blogcard h4 a:hover{ color:var(--accent); }
.blogcard p.excerpt{ margin:0 0 10px; color:var(--muted); font-size:14px; }

article.post{
  max-width:680px;
  margin:0 auto;
  padding:20px 24px 70px;
}
article.post .post-date{ color:var(--muted); font-size:13px; margin-bottom:10px; }
article.post h1{ font-family:'Fraunces',serif; font-size:34px; font-weight:500; margin:0 0 20px; }
article.post p{ font-size:16px; }
article.post h2{ font-family:'Fraunces',serif; font-size:24px; font-weight:500; margin:40px 0 16px; }
article.post h3{ font-family:'Fraunces',serif; font-size:19px; font-weight:500; margin:32px 0 14px; }
article.post ul, article.post ol{ font-size:16px; padding-left:22px; margin:0 0 20px; }
article.post li{ margin-bottom:8px; }
article.post li > ul, article.post li > ol{ margin-top:8px; }
article.post table{ width:100%; border-collapse:collapse; margin:0 0 24px; font-size:14px; }
article.post th, article.post td{ border:1px solid var(--line); padding:10px 12px; text-align:left; vertical-align:top; }
article.post th{ background:var(--accent-soft); font-weight:600; }
article.post blockquote{ border-left:3px solid var(--line); margin:0 0 20px; padding-left:18px; color:var(--muted); font-style:italic; }
article.post .source-note{ font-size:13px; color:var(--muted); }

/* Keeps the keyword tags and pager link inside the centered column on posts
   where they sit outside the article or form wrapper (the multilingual posts) */
.post-footer-wrap{ max-width:680px; margin:0 auto; padding:0 24px; }

/* Keyword tags shown under a post, course page, or note */
.post-keywords{ margin:18px 0 0; padding-top:16px; border-top:1px solid var(--line); font-size:13px; }
.post-keywords .kw-label{ color:var(--muted); margin-right:8px; }
.post-keywords .kw{ display:inline-block; background:var(--accent-soft); color:var(--accent); padding:4px 11px; border-radius:100px; margin:0 6px 6px 0; font-size:12.5px; font-weight:500; }

/* Collapsible all-notes navigator at the top of each Teaching Notes post */
details.notes-toc{
  border:1px solid var(--line);
  border-radius:4px;
  padding:14px 18px 6px;
  margin:0 0 32px;
}
details.notes-toc summary{
  cursor:pointer;
  font-weight:600;
  font-size:14px;
  color:var(--accent);
  list-style:none;
  padding:2px 0;
}
details.notes-toc summary::-webkit-details-marker{ display:none; }
details.notes-toc summary::before{ content:"+ "; font-weight:700; }
details.notes-toc[open] summary::before{ content:"\2212 "; }
details.notes-toc .toc-group{ color:var(--muted); font-size:12px; text-transform:uppercase; letter-spacing:0.05em; margin:18px 0 8px; }
details.notes-toc ul{ list-style:none; margin:0 0 6px; padding:0; }
details.notes-toc li{ padding:7px 0; font-size:14px; border-top:1px solid var(--line); }
details.notes-toc li:first-child{ border-top:none; }
details.notes-toc a{ text-decoration:none; color:var(--ink); }
details.notes-toc a:hover{ color:var(--accent); }
details.notes-toc li.current{ font-weight:600; color:var(--accent); }

/* Previous / next pager at the end of each Teaching Notes post */
nav.post-pager{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  flex-wrap:wrap;
  gap:14px;
  margin:44px 0 0;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:14px;
}
nav.post-pager a{ text-decoration:none; color:var(--accent); font-weight:600; }
nav.post-pager a.pager-all{ color:var(--muted); font-weight:500; }
nav.post-pager a:hover{ color:var(--ink); }
nav.post-pager .pager-next{ text-align:right; margin-left:auto; }

/* Figures / charts inside a post */
figure.chart{
  margin:28px 0 32px;
  padding:20px 20px 14px;
  border:1px solid var(--line);
  border-radius:4px;
  background:#fff;
}
figure.chart svg{ width:100%; height:auto; display:block; }
figure.chart figcaption{
  font-size:13px;
  color:var(--muted);
  margin-top:10px;
  line-height:1.5;
}
figure.chart figcaption strong{ color:var(--ink); }

.chart-pair{ display:flex; gap:18px; flex-wrap:wrap; }
.chart-pair > div{ flex:1 1 260px; min-width:0; }
.chart-pair svg{ width:100%; height:auto; display:block; }

/* SDG cluster grid (environment post) */
.sdg-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin:0 0 6px; }
@media (max-width:640px){ .sdg-grid{ grid-template-columns:1fr; } }
.sdg-cluster{ border:1px solid var(--line); border-radius:4px; padding:14px 16px 16px; }
.sdg-cluster h6{ margin:0 0 10px; font-size:13px; text-transform:uppercase; letter-spacing:0.04em; color:var(--muted); font-weight:600; }
.sdg-chips{ display:flex; flex-wrap:wrap; gap:6px; }
.sdg-chip{ width:30px; height:30px; border-radius:4px; display:flex; align-items:center; justify-content:center; font-size:12px; font-weight:700; color:#fff; }
.sdg-cluster.economy .sdg-chip{ background:var(--accent); }
.sdg-cluster.society .sdg-chip{ background:#b5651d; }
.sdg-cluster.biosphere .sdg-chip{ background:#3d6ea5; }

/* Callout box, e.g. open to supervision / collaboration note */
.callout{
  background:var(--accent-soft);
  border-left:3px solid var(--accent);
  border-radius:2px;
  padding:20px 24px;
  margin:28px 0 0;
}
.callout h5{
  margin:0 0 8px;
  font-family:'Fraunces',serif;
  font-weight:500;
  font-size:17px;
}
.callout p{ margin:0; font-size:15px; color:var(--ink); }
.callout a{ color:var(--accent); font-weight:600; }

/* Indicators page: toolbar, country toggle chips, chart card */
.indicator-toolbar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:18px;
}
.indicator-select-label{ font-size:13px; color:var(--muted); }
#indicator-select{
  font-family:'Inter',sans-serif;
  font-size:14px;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:2px;
  padding:9px 12px;
  flex:1 1 260px;
  max-width:420px;
}
.btn-live{
  background:none;
  border:1px solid var(--line);
  border-radius:2px;
  padding:9px 16px;
  font-size:13px;
  font-family:'Inter',sans-serif;
  color:var(--ink);
  cursor:pointer;
}
.btn-live:hover{ border-color:var(--accent); color:var(--accent); }

.country-toggles{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:24px; }
.country-chip{ cursor:pointer; user-select:none; }
.country-chip input{ position:absolute; opacity:0; pointer-events:none; }
.country-chip span{
  display:inline-block;
  padding:7px 14px;
  border-radius:100px;
  border:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.country-chip input:checked + span{ color:var(--ink); font-weight:600; }

.chart-card{
  border:1px solid var(--line);
  border-radius:4px;
  padding:22px;
  background:#fff;
}

.indicator-meta{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  margin-top:14px;
  font-size:13px;
  color:var(--muted);
}
@media (max-width:640px){ .indicator-meta{ flex-direction:column; } }

/* Contact */
.contact-line{ font-size:16px; margin:0 0 14px; }
.contact-line strong{ display:inline-block; width:130px; color:var(--muted); font-weight:500; font-size:13px; text-transform:uppercase; letter-spacing:0.05em; }

footer.site-footer{
  text-align:center;
  padding:40px 24px 60px;
  color:var(--muted);
  font-size:13px;
  border-top:1px solid var(--line);
  margin-top:20px;
}
footer.site-footer a{ color:var(--muted); }
footer.site-footer a:hover{ color:var(--accent); }

/* Language tabs on multilingual blog posts, CSS only, no JavaScript needed */
.lang-tabs{
  max-width:680px;
  margin:0 auto 30px;
  padding:0 24px;
}
.lang-tabs input[type="radio"]{
  position:absolute;
  opacity:0;
  pointer-events:none;
}
.lang-tabs{
  display:flex;
  flex-wrap:wrap;
  border-bottom:1px solid var(--line);
  margin-bottom:28px;
  padding-left:24px;
  padding-right:24px;
}
.lang-tabs label{
  cursor:pointer;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  padding:9px 16px;
  border-radius:2px 2px 0 0;
  border-bottom:2px solid transparent;
  margin-bottom:-1px;
}
.lang-tabs input:checked + label{
  color:var(--accent);
  border-bottom:2px solid var(--accent);
}
.lang-tabs .lang-panels{
  width:100%;
  order:99;
  padding-top:24px;
}
.lang-panel{ display:none; }
#lang-en:checked ~ .lang-panels .panel-en,
#lang-tr:checked ~ .lang-panels .panel-tr,
#lang-ar:checked ~ .lang-panels .panel-ar{ display:block; }

.lang-panel p{ font-size:16px; margin:0 0 20px; }
.lang-panel[dir="rtl"]{ text-align:right; }
.lang-panel[dir="rtl"] p{ line-height:1.9; }
.lang-panel h2.native-title{
  font-family:'Fraunces',serif;
  font-size:22px;
  font-weight:500;
  margin:0 0 20px;
}