/* AEPDA — Swiss-minimal civic institution (Light + Dark) */
:root{
  --bg:#ffffff;
  --surface:#ffffff;
  --surface-2:#f7f7f7;

  --text:#111111;
  --text-2:#555555;
  --text-3:#888888;

  --border:#e5e5e5;
  --divider:#efefef;

  --accent:#b80000;
  --accent-hover:#8f0000;
  --accent-soft:#fdecec;

  --radius:6px;
  --radius-sm:4px;
  --container:1120px;

  --h1:clamp(2.2rem, 3vw, 3rem);
  --h2:2rem;
  --h3:1.35rem;
  --body-lg:1.125rem;
  --body:1rem;
  --small:0.9rem;

  --lh-tight:1.15;
  --lh:1.6;
}

html[data-theme="dark"]{
  --bg:#0e0e0e;
  --surface:#0e0e0e;
  --surface-2:#1a1a1a;

  --text:#f5f5f5;
  --text-2:#b0b0b0;
  --text-3:#8a8a8a;

  --border:rgba(255,255,255,0.14);
  --divider:rgba(255,255,255,0.10);

  --accent:#ff3b3b;
  --accent-hover:#ff1f1f;
  --accent-soft:rgba(255,59,59,0.12);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--text);
  font-family:Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height:var(--lh);
  letter-spacing:0.1px;
}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent)}
.container{max-width:var(--container);padding:0 24px;margin:0 auto}
.muted{color:var(--text-2)}
.small{font-size:var(--small)}

.site-header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb, var(--surface) 92%, transparent);
  border-bottom:1px solid var(--divider);
  backdrop-filter:blur(10px);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:16px}
.brand{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.brand-mark{font-weight:800;letter-spacing:0.14em}
.brand-sub{font-weight:500;color:var(--text-2);max-width:48ch}
.brand-logo{height:28px;width:auto;display:block}
.brand-flag img{height:14px;width:auto;display:block;opacity:0.95}

.nav{display:flex;align-items:center;gap:10px;font-size:0.95rem;flex-wrap:wrap}
.nav a{padding:8px 10px;border-radius:var(--radius-sm);color:var(--text-2)}
.nav a.active{color:var(--text);outline:1px solid var(--divider)}
.nav a:hover{background:var(--surface-2);color:var(--text)}

.header-actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--border);font-size:0.95rem;cursor:pointer;
}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff}
.btn-outline{background:transparent}
.btn-outline:hover{border-color:var(--accent)}

.theme-toggle{
  display:flex;align-items:center;gap:8px;
  background:transparent;border:1px solid var(--border);
  border-radius:999px;padding:8px 12px;cursor:pointer;color:var(--text-2);
}
.theme-toggle:hover{border-color:var(--accent);color:var(--text)}
.theme-dot{width:10px;height:10px;border-radius:999px;background:var(--accent)}
.theme-label{font-size:0.9rem}
.nav-toggle{display:none;background:transparent;border:1px solid var(--border);border-radius:999px;padding:8px 12px;cursor:pointer}

.page{opacity:1;transform:translateY(0);transition:opacity 220ms ease, transform 220ms ease}
.page.transition-out{opacity:0;transform:translateY(10px)}

.section{padding:96px 0;border-bottom:1px solid var(--divider)}
.section.alt{background:var(--surface-2)}
.section .kicker{
  color:var(--accent);font-weight:700;font-size:0.9rem;
  letter-spacing:0.08em;text-transform:uppercase;
}
h1{font-size:var(--h1);line-height:var(--lh-tight);margin:0 0 14px}
h2{font-size:var(--h2);line-height:1.25;margin:0 0 12px}
h3{font-size:var(--h3);margin:0 0 10px}
p{margin:0 0 14px}
.lead{font-size:var(--body-lg);color:var(--text-2);max-width:70ch}
.narrow{max-width:75ch}
.center{margin-left:auto;margin-right:auto}
.center-text{text-align:center}

.grid{display:grid;gap:28px}
.grid.cols-2{grid-template-columns:repeat(2, minmax(0, 1fr))}
.grid.cols-3{grid-template-columns:repeat(3, minmax(0, 1fr))}
.grid.cols-4{grid-template-columns:repeat(4, minmax(0, 1fr))}
.grid.align-center{align-items:center}

.card{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
  padding:22px;
}
.card:hover{border-color:color-mix(in srgb, var(--accent) 35%, var(--border))}
.pill{
  border:1px solid var(--border);
  border-radius:999px;
  padding:6px 10px;
  font-size:0.85rem;
  color:var(--text-2);
}
.meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}

.list{padding-left:18px;color:var(--text-2)}
.list li{margin:6px 0}
.divider{height:1px;background:var(--divider);margin:22px 0}

.form{max-width:760px}
.field{margin:14px 0}
label{display:block;font-weight:700;margin-bottom:6px}
input,textarea,select{
  width:100%;padding:12px 12px;border:1px solid var(--border);
  border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font:inherit;
}
textarea{min-height:120px;resize:vertical}
.help{color:var(--text-3);font-size:0.9rem;margin-top:6px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:16px}
.success{
  border-left:3px solid var(--accent);
  padding:12px 14px;background:var(--accent-soft);
  border-radius:var(--radius-sm);color:var(--text);display:none;
}

.table{
  width:100%;
  border-collapse:collapse;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
}
.table th,.table td{
  padding:12px 12px;
  border-bottom:1px solid var(--divider);
  text-align:left;
  font-size:0.95rem;
}
.table th{background:var(--surface-2)}
.table tr:last-child td{border-bottom:none}

.site-footer{padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:26px}
.site-footer h4{margin:0 0 10px;font-size:0.95rem}
.site-footer a{display:block;padding:6px 0;color:var(--text-2)}
.site-footer a:hover{color:var(--accent)}
.footer-meta{margin-top:18px;padding-top:18px;border-top:1px solid var(--divider)}

@media (max-width: 980px){
  .nav{display:none}
  .nav-toggle{display:inline-flex}
  .grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hide-sm{display:none}
  .section{padding:64px 0}
  .form-row{grid-template-columns:1fr}
  .brand-sub{display:none}
}

.mobile-nav{
  display:none;border-bottom:1px solid var(--divider);background:var(--surface);
}
.mobile-nav.open{display:block}
.mobile-nav .container{padding-top:12px;padding-bottom:16px}
.mobile-nav a{display:block;padding:10px 0;color:var(--text);border-bottom:1px solid var(--divider)}
.mobile-nav a:last-child{border-bottom:none}


/* --- Layout refinements (v4) --- */
.nav{gap:6px}
.nav a{padding:7px 8px}
.header-inner{gap:10px}
.brand-sub{max-width:32ch}

.site-footer{padding:40px 0 22px}
.footer-grid{gap:16px}
.site-footer a{padding:4px 0}

/* Prevent long card titles wrapping */
.card h3, .card h2{
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* Media */
.media-img{
  width:100%;
  height:320px;
  border-radius:var(--radius);
  object-fit:cover;
  border:1px solid var(--border);
  background:var(--surface-2);
}
.media-img.sm{height:220px}
.hero-media{height:360px}

/* Better footer columns on wide screens */
@media (min-width: 981px){
  .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}
  .footer-grid > div:last-child{display:none}
}


/* --- Diagrams & accordion (v5) --- */
.diagram{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
  padding:18px;
  overflow:auto;
}
.diagram svg{min-width:720px;max-width:100%;height:auto;display:block}

.accordion{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.accordion details{border-bottom:1px solid var(--divider);background:var(--surface)}
.accordion details:last-child{border-bottom:none}
.accordion summary{
  list-style:none;cursor:pointer;
  padding:14px 16px;font-weight:800;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.accordion summary::-webkit-details-marker{display:none}
.accordion .ans{padding:0 16px 16px 16px;color:var(--text-2)}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border-radius:999px;border:1px solid var(--border);color:var(--text-2);font-size:0.85rem}
.steps{counter-reset:step}
.step{display:flex;gap:14px;align-items:flex-start;padding:14px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}
.step:before{
  counter-increment:step;
  content:counter(step);
  width:28px;height:28px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-soft);border:1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  font-weight:900;
}
.step h3{margin:0 0 6px}
.step p{margin:0;color:var(--text-2)}


/* --- Minimal header + Explore panel (v6) --- */
.header-inner{flex-wrap:nowrap}
.brand{flex-wrap:nowrap;gap:10px}
.brand-logo{height:38px}
.brand-mark{letter-spacing:0.08em}
.nav{flex-wrap:nowrap;white-space:nowrap;gap:4px}
.nav a{padding:7px 10px}
.header-actions{flex-wrap:nowrap}
.explore-open{white-space:nowrap}
@media (max-width: 980px){
  .header-inner{flex-wrap:wrap}
  .explore{display:none !important}
}

/* Explore panel */
.explore{border-bottom:1px solid var(--divider);background:var(--surface);display:none}
.explore.open{display:block}
.explore-header{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 0}
.explore-kicker{color:var(--accent);font-weight:800;letter-spacing:0.08em;text-transform:uppercase;font-size:0.85rem}
.explore-title{font-weight:900}
.explore-grid{display:grid;grid-template-columns:repeat(5, minmax(0, 1fr));gap:16px;padding:0 0 18px 0}
.explore-col{border:1px solid var(--border);border-radius:var(--radius);padding:14px;background:var(--surface)}
.explore-col h4{margin:0 0 10px 0;font-size:0.95rem;letter-spacing:0.02em}
.explore-col a{display:block;padding:6px 0;color:var(--text-2)}
.explore-col a:hover{color:var(--accent)}
@media (max-width: 1100px){
  .explore-grid{grid-template-columns:repeat(3, minmax(0, 1fr))}
}


/* --- Book landing modules (v9) --- */
.hero-split{display:grid;grid-template-columns:1.2fr 0.8fr;gap:28px;align-items:center}
@media (max-width: 980px){ .hero-split{grid-template-columns:1fr} }

.cover{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
  overflow:hidden;
}
.cover img{width:100%;height:auto;display:block}

.panel{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
  padding:18px;
}
.panel h3{margin:0 0 8px}
.panel p{margin:0 0 10px;color:var(--text-2)}

.kpi{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:12px;
  margin-top:14px;
}
@media (max-width: 980px){ .kpi{grid-template-columns:1fr} }
.kpi .k{
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  background:var(--surface);
}
.k .n{font-size:1.6rem;font-weight:900;line-height:1.1}
.k .l{color:var(--text-2);margin-top:6px;font-size:0.95rem}

.lang-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
@media (max-width: 980px){ .lang-grid{grid-template-columns:1fr} }
.lang-card{
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  background:var(--surface);
}
.lang-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.lang-name{font-weight:900}
.tag{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:999px;padding:4px 8px;font-size:0.8rem;color:var(--text-2)}
.lang-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}

.inline-note{color:var(--text-2);font-size:0.95rem}

.modal{
  position:fixed; inset:0;
  background:rgba(0,0,0,0.45);
  display:none;
  align-items:center; justify-content:center;
  padding:18px;
  z-index:9999;
}
.modal.open{display:flex}
.modal-card{
  width:min(860px, 100%);
  max-height:86vh;
  overflow:auto;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px;
}
.modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:10px}
.modal-header h3{margin:0}
.modal-close{white-space:nowrap}

.pay-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width: 980px){ .pay-grid{grid-template-columns:1fr} }

.pay-choice{
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  background:var(--surface);
}
.pay-choice h4{margin:0 0 6px}
.pay-choice p{margin:0;color:var(--text-2)}


/* --- Online document viewer (v10) --- */
.doc-viewer{
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--surface);
}
.doc-frame{
  width:100%;
  height:72vh;
  border:0;
  display:block;
}
.doc-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:14px;
}
.doc-grid{
  display:grid;
  grid-template-columns:0.38fr 0.62fr;
  gap:16px;
  align-items:start;
}
@media (max-width: 980px){ .doc-grid{grid-template-columns:1fr} .doc-frame{height:70vh} }
.doc-list .item{
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  background:var(--surface);
  margin-bottom:12px;
}
.doc-list .item button{
  width:100%;
  text-align:left;
}
.doc-list .item .muted{margin-top:6px}
.pillbar{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.pill{
  border:1px solid var(--border);
  border-radius:999px;
  padding:6px 10px;
  font-size:0.85rem;
  color:var(--text-2);
}