/* Un Pacto Por Colombia — dark reading theme */
:root{
  --bg:#0e1014;
  --bg-elevated:#171a21;
  --bg-elevated-2:#1d212b;
  --border:#262b35;
  --text:#e7e9ee;
  --text-muted:#98a1b0;
  --accent:#f2c14e;
  --accent-soft:rgba(242,193,78,0.12);
  --accent-2:#6db4ff;
  --accent-red:#e2574c;
  --max-width:1080px;
  --reading-width:700px;
  --sidebar-width:260px;
  --font-ui:'Inter',system-ui,-apple-system,Segoe UI,sans-serif;
  --font-read:'Source Serif 4',Georgia,'Times New Roman',serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font-read);
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

/* ---------- Header ---------- */
.site-header{
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 24px;
  border-bottom:1px solid var(--border);
  background:var(--bg-elevated);
  position:sticky;
  top:0;
  z-index:30;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}
.brand img{height:40px;width:auto}
.site-title{font-family:var(--font-ui);font-size:18px;font-weight:700;line-height:1.2}
.site-sub{font-family:var(--font-ui);font-size:12px;color:var(--text-muted);margin-top:2px}

.menu-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:34px;
  height:34px;
  background:transparent;
  border:1px solid var(--border);
  border-radius:8px;
  cursor:pointer;
  padding:0;
}
.menu-toggle span{display:block;height:2px;width:18px;margin:0 auto;background:var(--text);border-radius:2px}

/* ---------- Containers ---------- */
.container{max-width:var(--max-width);margin:0 auto;padding:40px 24px}
.container--home{padding-top:48px;flex:1 0 auto;width:100%}

.hero{max-width:var(--reading-width);margin-bottom:40px}
.hero h1{font-family:var(--font-ui);font-size:34px;margin:0 0 12px;color:var(--text);font-weight:800;letter-spacing:-0.01em}
.hero p{font-family:var(--font-ui);font-size:16px;color:var(--text-muted);margin:0}

/* ---------- Card grid (dev.to style) ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(290px,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--bg-elevated);
  border:1px solid var(--border);
  border-radius:14px;
  overflow:hidden;
  text-decoration:none;
  color:var(--text);
  transition:transform 0.18s ease, border-color 0.18s ease;
}
.card:hover{transform:translateY(-3px);border-color:var(--accent)}
.card-cover{width:100%;height:160px;object-fit:cover;display:block}
.card-cover--placeholder{
  background:linear-gradient(135deg,#2a2230 0%,#1d2a3a 45%,#241b1c 100%);
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-family:var(--font-ui);font-size:18px;font-weight:700;margin:0;line-height:1.35}
.card-prologue{font-family:var(--font-read);font-size:15px;color:var(--text-muted);margin:0;flex:1;line-height:1.55}
.card-meta{font-family:var(--font-ui);font-size:12px;color:var(--text-muted);display:flex;gap:8px;align-items:center}

/* ---------- Article layout ---------- */
.layout{display:flex;align-items:flex-start;flex:1 0 auto;width:100%}

.sidebar{
  width:var(--sidebar-width);
  flex-shrink:0;
  border-right:1px solid var(--border);
  background:var(--bg-elevated);
  position:sticky;
  top:73px;
  height:calc(100vh - 73px);
  overflow-y:auto;
}
.sidebar-inner{padding:24px 20px}
.sidebar-home{
  display:inline-block;
  font-family:var(--font-ui);
  font-weight:600;
  font-size:14px;
  color:var(--accent);
  text-decoration:none;
  margin-bottom:20px;
}
.sidebar-home:hover{opacity:0.8}
.sidebar-label{font-family:var(--font-ui);font-size:11px;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-muted);margin-bottom:10px}
.sidebar-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.sidebar-list a{
  display:block;
  font-family:var(--font-ui);
  font-size:14px;
  color:var(--text-muted);
  text-decoration:none;
  padding:8px 10px;
  border-radius:8px;
  line-height:1.4;
}
.sidebar-list a:hover{background:var(--bg-elevated-2);color:var(--text)}
.sidebar-list a.active{background:var(--accent-soft);color:var(--accent);font-weight:600}

.sidebar-backdrop{display:none}

.container--article{flex:1;min-width:0;padding-top:48px}

article{max-width:var(--reading-width);margin:0 auto}
.meta{font-family:var(--font-ui);font-size:13px;color:var(--text-muted);margin:0 0 10px}
h1{font-family:var(--font-ui);font-size:32px;margin:0 0 24px;line-height:1.25;font-weight:800;letter-spacing:-0.01em;color:var(--text)}
h2{font-family:var(--font-ui);font-size:22px;margin:40px 0 16px;color:var(--text);line-height:1.3;font-weight:700}
h3{font-family:var(--font-ui);font-size:18px;margin:24px 0 12px;font-weight:600;color:var(--text)}
p{font-size:19px;line-height:1.75;margin:18px 0;color:var(--text)}
p strong{font-weight:600;color:var(--text)}
em{color:var(--text-muted);font-style:italic}
hr{border:none;border-top:1px solid var(--border);margin:36px 0}
ul{margin:18px 0;padding-left:24px}
ul li{margin:10px 0;line-height:1.7}
ol{margin:18px 0;padding-left:24px}
ol li{margin:12px 0;line-height:1.7}
a{color:var(--accent-2);text-decoration:none;border-bottom:1px solid transparent}
a:hover{border-bottom-color:var(--accent-2)}
blockquote{margin:24px 0;padding:16px 20px;background:var(--bg-elevated);border-left:4px solid var(--accent);font-style:italic;color:var(--text);border-radius:0 8px 8px 0}
blockquote p{margin:8px 0;font-size:17px}
table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto}
table th{background:var(--bg-elevated-2);color:var(--text);padding:12px;text-align:left;font-weight:600;font-family:var(--font-ui)}
table td{padding:12px;border-bottom:1px solid var(--border)}
table tr:hover{background:var(--bg-elevated)}

.article-section{margin-top:8px}

.article-references{margin-top:8px;font-size:15px}
.article-references h2{font-size:20px}
.article-references ul,.article-references ol{font-size:15px}
.article-references li{margin:8px 0;line-height:1.6}

/* ---------- Deep-dive expandable sections ---------- */
.deep-dive{
  margin:24px 0 8px;
  border:1px solid var(--border);
  border-radius:12px;
  background:var(--bg-elevated);
  overflow:hidden;
}
.deep-dive summary{
  list-style:none;
  cursor:pointer;
  padding:16px 20px;
  font-family:var(--font-ui);
  font-weight:600;
  font-size:15px;
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.deep-dive summary::-webkit-details-marker{display:none}
.deep-dive summary::after{
  content:'+';
  font-size:20px;
  line-height:1;
  color:var(--text-muted);
  transition:transform 0.2s ease;
}
.deep-dive[open] summary::after{transform:rotate(45deg)}
.deep-dive-body{padding:4px 24px 28px;border-top:1px solid var(--border)}
.deep-dive-body h1{display:none}
.deep-dive-body h2{font-size:19px;margin-top:32px}

/* ---------- Floating home button ---------- */
.fab-home{
  position:fixed;
  bottom:24px;
  right:24px;
  width:48px;
  height:48px;
  border-radius:50%;
  background:var(--accent);
  color:#1a1305;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 4px 14px rgba(0,0,0,0.4);
  z-index:40;
  transition:transform 0.15s ease;
}
.fab-home:hover{transform:translateY(-2px)}

/* ---------- Footer ---------- */
footer.site-footer{
  border-top:1px solid var(--border);
  margin-top:56px;
  padding:28px 0;
  text-align:center;
  color:var(--text-muted);
  font-family:var(--font-ui);
  font-size:13px;
}

/* ---------- Mobile ---------- */
@media (max-width:900px){
  .menu-toggle{display:flex}
  .sidebar{
    position:fixed;
    top:0;
    left:0;
    height:100vh;
    transform:translateX(-100%);
    transition:transform 0.25s ease;
    z-index:50;
    box-shadow:4px 0 24px rgba(0,0,0,0.4);
  }
  .sidebar.is-open{transform:translateX(0)}
  .sidebar-backdrop{
    display:none;
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.55);
    z-index:45;
  }
  .sidebar-backdrop.is-open{display:block}
  .container--article{padding-top:32px}
  h1{font-size:26px}
  p{font-size:17px}
  .container{padding:28px 16px}
  .fab-home{width:44px;height:44px;bottom:16px;right:16px}
}