@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,600;0,8..60,700;1,8..60,400&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

:root{
  --ink:#1c3d5a;
  --ink-dark:#12293e;
  --gold:#b8863b;
  --paper:#fbfaf7;
  --paper-dim:#f2efe7;
  --text:#26241f;
  --text-soft:#5c584d;
  --line:#d8d3c7;
  --max:1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:'IBM Plex Sans',sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Source Serif 4',serif;
  color:var(--ink-dark);
  margin:0 0 .5em;
  line-height:1.25;
}
a{color:var(--ink);}
a:hover{color:var(--gold);}
p{max-width:70ch;}
img{max-width:100%;}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px;}

/* Utility top bar */
.topbar{
  background:var(--ink-dark);
  color:#dfe6ec;
  font-size:.82rem;
}
.topbar .wrap{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:7px;padding-bottom:7px;flex-wrap:wrap;gap:6px;
}
.topbar a{color:#dfe6ec;text-decoration:none;margin-left:16px;}
.topbar a:hover{color:var(--gold);}

/* Header */
header.site{
  background:var(--paper);
  border-bottom:3px solid var(--ink);
}
.brandbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 0;gap:20px;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;}
.brand .mark{
  width:48px;height:48px;border-radius:2px;
  background:var(--ink);
  display:flex;align-items:center;justify-content:center;
  color:var(--gold);font-family:'Source Serif 4',serif;font-weight:700;font-size:1.3rem;
  flex:none;
}
.brand .name{color:var(--ink-dark);}
.brand .name strong{display:block;font-family:'Source Serif 4',serif;font-size:1.25rem;font-weight:700;}
.brand .name span{display:block;font-size:.78rem;color:var(--text-soft);letter-spacing:.02em;}

nav.mainnav{
  background:var(--ink);
}
nav.mainnav ul{
  list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;
}
nav.mainnav a{
  display:block;color:#eef1f4;text-decoration:none;
  padding:13px 18px;font-size:.92rem;font-weight:500;letter-spacing:.01em;
  border-right:1px solid rgba(255,255,255,.08);
}
nav.mainnav a:hover,nav.mainnav a.active{background:var(--ink-dark);color:var(--gold);}

/* Hero */
.hero{
  background:linear-gradient(180deg,var(--paper-dim),var(--paper));
  border-bottom:1px solid var(--line);
  padding:52px 0 44px;
}
.hero .kicker{color:var(--gold);font-weight:600;font-size:.85rem;margin-bottom:10px;}
.hero h1{font-size:2.1rem;max-width:18ch;}
.hero p.lead{font-size:1.08rem;color:var(--text-soft);max-width:62ch;}

.search-box{
  margin-top:22px;display:flex;max-width:560px;border:1px solid var(--line);
  background:#fff;
}
.search-box input{
  flex:1;border:0;padding:13px 16px;font-size:.95rem;font-family:inherit;background:transparent;
}
.search-box input:focus{outline:none;}
.search-box button{
  border:0;background:var(--ink);color:#fff;padding:0 22px;font-weight:600;cursor:pointer;
  font-family:inherit;
}
.search-box button:hover{background:var(--gold);}

/* Layout: main + sidebar */
.layout{
  display:grid;grid-template-columns:1fr 300px;gap:44px;
  padding:40px 0 60px;align-items:start;
}
@media (max-width:820px){.layout{grid-template-columns:1fr;}}

.section-title{
  font-size:1.5rem;border-bottom:2px solid var(--ink);padding-bottom:10px;margin-bottom:22px;
}

/* Cards for home listing (procedures / news) — intentionally not a "shadow card kit": flat, bordered, list-like */
.item-list{list-style:none;margin:0;padding:0;}
.item-list li{
  border-bottom:1px solid var(--line);padding:16px 0;
}
.item-list li:first-child{padding-top:0;}
.item-list a.title{
  font-weight:600;color:var(--ink-dark);text-decoration:none;font-size:1.02rem;
}
.item-list a.title:hover{color:var(--gold);}
.item-list .meta{font-size:.82rem;color:var(--text-soft);margin-top:4px;}
.item-list .excerpt{margin:6px 0 0;color:var(--text-soft);font-size:.93rem;}

/* Procedure grid on home */
.proc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:6px;}
@media (max-width:600px){.proc-grid{grid-template-columns:1fr;}}
.proc-grid a{
  background:#fff;padding:20px;text-decoration:none;color:var(--ink-dark);
  display:block;font-weight:600;
}
.proc-grid a:hover{background:var(--paper-dim);color:var(--gold);}
.proc-grid a .n{color:var(--text-soft);font-weight:400;font-size:.82rem;display:block;margin-top:4px;}

/* Sidebar */
.side-block{margin-bottom:36px;}
.side-block h3{
  font-size:1.02rem;text-transform:uppercase;letter-spacing:.04em;
  border-bottom:2px solid var(--gold);padding-bottom:8px;margin-bottom:14px;font-family:'IBM Plex Sans',sans-serif;font-weight:700;
}
.contact-box{background:var(--paper-dim);border:1px solid var(--line);padding:18px;font-size:.9rem;}
.contact-box p{margin:0 0 8px;}

/* Accordion (procedure detail) */
.procedure{
  border:1px solid var(--line);margin-bottom:14px;background:#fff;
}
.procedure summary{
  cursor:pointer;padding:16px 18px;font-weight:600;color:var(--ink-dark);
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.procedure summary::-webkit-details-marker{display:none;}
.procedure summary::after{content:'+';font-size:1.3rem;color:var(--gold);font-weight:400;flex:none;}
.procedure[open] summary::after{content:'–';}
.procedure summary:hover{color:var(--gold);}
.procedure .body{padding:0 18px 20px;border-top:1px solid var(--line);}
.procedure dl{display:grid;grid-template-columns:180px 1fr;gap:10px 16px;margin:16px 0;}
.procedure dt{font-weight:600;color:var(--text-soft);font-size:.86rem;}
.procedure dd{margin:0;font-size:.93rem;}
@media (max-width:560px){.procedure dl{grid-template-columns:1fr;}.procedure dt{margin-bottom:-6px;}}

.notice{
  background:#fbf3e3;border:1px solid #e6cd97;padding:14px 16px;font-size:.87rem;color:#5c4a1f;margin:18px 0 28px;
}

.breadcrumb{font-size:.85rem;color:var(--text-soft);margin-bottom:18px;}
.breadcrumb a{color:var(--text-soft);text-decoration:none;}
.breadcrumb a:hover{color:var(--gold);}

.law-list{list-style:none;margin:0;padding:0;}
.law-list li{border:1px solid var(--line);padding:16px 18px;margin-bottom:12px;background:#fff;}
.law-list .code{display:inline-block;background:var(--ink);color:#fff;font-size:.76rem;padding:2px 8px;margin-bottom:8px;letter-spacing:.03em;}

/* Footer */
footer.site{
  background:var(--ink-dark);color:#c9d2da;margin-top:20px;
}
footer.site .wrap{padding:36px 24px 26px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;}
@media (max-width:700px){footer.site .wrap{grid-template-columns:1fr;}}
footer.site h4{color:#fff;font-family:'IBM Plex Sans',sans-serif;font-size:.95rem;text-transform:uppercase;letter-spacing:.04em;}
footer.site a{color:#c9d2da;text-decoration:none;font-size:.9rem;}
footer.site a:hover{color:var(--gold);}
footer.site ul{list-style:none;margin:0;padding:0;}
footer.site li{margin-bottom:8px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);text-align:center;padding:14px 0;font-size:.8rem;color:#8ea0ae;
}

.btn{
  display:inline-block;background:var(--ink);color:#fff;padding:11px 22px;text-decoration:none;
  font-weight:600;font-size:.92rem;
}
.btn:hover{background:var(--gold);color:#fff;}

/* ==== Bổ sung cho bản single-page ==== */
.page-section{
  padding:50px 0;
  border-bottom:1px solid var(--line);
  scroll-margin-top:0;
}
.page-section.alt{
  background:var(--paper-dim);
}
.jump-open{cursor:pointer;}

/* ==== SPA shell: ẩn/hiện nội dung, header/footer đứng yên ==== */
.page-view{display:none;}
.page-view.active{display:block;}