/* US Civic Guide — original design system: midnight navy + liberty gold on parchment */
:root{
  --navy:#1b2a4a; --navy-deep:#101c33; --navy-soft:#2c426e;
  --gold:#c9962e; --gold-dark:#a67c1f; --gold-pale:#faf3df;
  --paper:#faf7f0; --card:#ffffff; --ink:#232a35; --muted:#5d6b7d;
  --line:#e6dfcd; --ok:#1d7a44; --danger:#b3261e; --radius:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--paper);color:var(--ink);line-height:1.75;font-size:1.02rem}
.wrap{max-width:1060px;margin:0 auto;padding:0 22px}
a{color:var(--navy-soft);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
h1,h2{font-family:Georgia,"Times New Roman",serif;letter-spacing:.1px}

/* utility bar */
.utilbar{background:var(--navy-deep);color:#c9d4e8;font-size:.8rem;padding:7px 0;border-bottom:3px solid var(--gold)}
.utilbar .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.utilbar strong{color:#f3dfae}

/* header */
.site-header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:50;
  box-shadow:0 2px 10px rgba(16,28,51,.35)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;padding:11px 22px;gap:14px}
.brand{display:flex;align-items:center;gap:11px;color:#fff}
.brand:hover{text-decoration:none}
.brand-logo{width:44px;height:44px;flex:none;border-radius:10px;box-shadow:0 0 0 2px rgba(201,150,46,.55)}
.brand-text{line-height:1.2}
.brand-text b{font-size:1.1rem;display:block;font-family:Georgia,serif}
.brand-text small{font-size:.66rem;color:#f3dfae;letter-spacing:1.4px;text-transform:uppercase}
.nav-toggle{background:none;border:1px solid rgba(255,255,255,.4);color:#fff;font-size:1.25rem;
  border-radius:8px;padding:4px 11px;cursor:pointer;display:none}
.main-nav ul{list-style:none;display:flex;gap:2px;flex-wrap:wrap}
.main-nav a{color:#e8eefb;font-size:.88rem;font-weight:600;padding:9px 13px;border-radius:999px;display:block}
.main-nav a:hover,.main-nav a.active{background:rgba(201,150,46,.28);color:#fff;text-decoration:none}

/* hero */
.hero{background:linear-gradient(135deg,var(--navy-deep) 0%,var(--navy) 55%,var(--navy-soft) 100%);
  color:#fff;padding:58px 0 50px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:14px;
  background:repeating-linear-gradient(90deg,var(--gold) 0 34px,transparent 34px 68px);opacity:.85}
.hero h1{font-size:2.05rem;line-height:1.28;max-width:680px;margin-bottom:14px}
.hero p.lead{color:#d5deef;max-width:640px;font-size:1.05rem;margin-bottom:22px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;font-weight:700;padding:12px 24px;border-radius:9px;border:0;cursor:pointer;font-size:.98rem}
.btn-gold{background:var(--gold);color:#1b2a4a}
.btn-gold:hover{background:var(--gold-dark);color:#fff;text-decoration:none}
.btn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.55)}
.btn-ghost:hover{border-color:#fff;text-decoration:none}
.hero-note{margin-top:16px;font-size:.82rem;color:#aeb9d2}
.stat-chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.chip{background:rgba(255,255,255,.08);border:1px solid rgba(201,150,46,.5);border-radius:999px;
  padding:6px 14px;font-size:.8rem;color:#f0e6c8}

/* page head (inner pages) */
.page-head{background:linear-gradient(120deg,var(--navy-deep),var(--navy-soft));color:#fff;padding:36px 0}
.page-head h1{font-size:1.7rem;line-height:1.3}
.page-head p{color:#cfd9ec;margin-top:8px;max-width:720px}
.crumbs{font-size:.82rem;color:#aeb9d2;margin-bottom:10px}
.crumbs a{color:#f3dfae}

/* content */
.content{padding:38px 0 22px}
.card{background:var(--card);border:1px solid var(--line);border-top:5px solid var(--gold);
  border-radius:var(--radius);padding:28px;margin-bottom:24px;box-shadow:0 2px 10px rgba(27,42,74,.07)}
.card h2{font-size:1.4rem;color:var(--navy);margin-bottom:14px}
.card h3{font-size:1.08rem;color:var(--navy);margin:20px 0 8px}
.card p{margin-bottom:12px}
.card ul,.card ol{margin:0 0 14px 22px}
.card li{margin-bottom:7px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tile{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  display:flex;flex-direction:column;transition:transform .15s ease}
.tile:hover{transform:translateY(-3px)}
.tile h3{color:var(--navy);font-size:1.06rem;margin-bottom:8px;font-family:Georgia,serif}
.tile p{font-size:.93rem;color:var(--muted);flex:1}
.tile a.more{font-weight:700;color:var(--gold-dark);margin-top:10px}
.step{display:flex;gap:14px;margin-bottom:16px;align-items:flex-start}
.step-n{flex:none;width:34px;height:34px;border-radius:50%;background:var(--navy);color:#f3dfae;
  font-weight:800;display:flex;align-items:center;justify-content:center;font-size:1rem}
.step-body{flex:1}
.kbd{font-family:Consolas,monospace;background:var(--paper);border:1px solid var(--line);
  border-radius:6px;padding:2px 8px;font-size:.92rem}

/* callouts */
.callout{border-radius:var(--radius);padding:16px 18px;margin:16px 0;font-size:.96rem}
.callout.ok{background:#e8f4ec;border:1px solid #bfe3cc}
.callout.warn{background:#fdf6e3;border:1px solid #ecd9a0}
.callout.info{background:#e8eefb;border:1px solid #bccbe8}
.src{font-size:.82rem;color:var(--muted);margin-top:10px}
.verify{display:inline-block;background:#fff3cd;border:1px solid #d9a91f;color:#7a5c00;font-size:.78rem;
  font-weight:700;border-radius:6px;padding:2px 8px;margin-left:6px;vertical-align:middle}

/* tables */
.tblwrap{overflow-x:auto;margin:14px 0}
table.data{width:100%;border-collapse:collapse;font-size:.93rem}
table.data th{background:var(--navy);color:#fff;text-align:left;padding:10px 12px}
table.data td{border:1px solid var(--line);padding:9px 12px}
table.data tr:nth-child(even) td{background:var(--paper)}
table.data tr.hl td{background:var(--gold-pale)}

/* practice questions */
.qa{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;background:var(--card)}
.qa summary{padding:15px 18px;cursor:pointer;font-weight:600;color:var(--navy);list-style:none}
.qa summary::-webkit-details-marker{display:none}
.qa summary::before{content:"Q";display:inline-block;width:26px;height:26px;border-radius:50%;
  background:var(--navy);color:#f3dfae;font-size:.8rem;font-weight:800;text-align:center;line-height:26px;margin-right:10px}
.qa .a{padding:0 18px 16px 54px;color:var(--ink)}
.qa .a b{color:var(--ok)}
.qcat{background:var(--navy);color:#fff;border-radius:var(--radius);padding:14px 20px;margin:30px 0 16px}
.qcat h2{color:#f3dfae;font-size:1.25rem;margin:0}
.qcat p{color:#c9d4e8;font-size:.88rem;margin:4px 0 0}

/* calculator */
.calc{background:var(--card);border:2px solid var(--navy);border-radius:var(--radius);padding:28px;margin-bottom:24px}
.calc h2{font-size:1.4rem;color:var(--navy);margin-bottom:8px}
.calc .sub{color:var(--muted);font-size:.93rem;margin-bottom:18px}
.calc label{display:block;font-weight:600;margin:12px 0 6px;font-size:.95rem}
.calc input,.calc select{width:100%;padding:11px 12px;border:2px solid var(--line);border-radius:8px;font-size:1rem;background:#fff}
.calc input:focus,.calc select:focus{outline:none;border-color:var(--navy-soft)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.calc-result{display:none;margin-top:20px;background:var(--gold-pale);border-radius:var(--radius);padding:20px;border:1px solid var(--gold)}
.calc-result.show{display:block}
.calc-result .big{font-size:2rem;font-weight:800;color:var(--navy);margin:6px 0 12px}
.calc-result table{width:100%;font-size:.95rem}
.calc-result td{padding:6px 4px;border-bottom:1px dashed var(--line)}
.calc-note{font-size:.85rem;color:var(--muted);margin-top:10px}

/* faq */
details.faq{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:12px;padding:16px 18px}
details.faq summary{font-weight:700;color:var(--navy);cursor:pointer;font-size:1rem}
details.faq .a{margin-top:10px;color:var(--ink)}

/* footer */
.site-footer{background:var(--navy-deep);color:#c9d4e8;margin-top:40px}
.site-footer .wrap{padding-top:36px;padding-bottom:10px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px;margin-bottom:26px}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:12px}
.foot-grid h4{color:#f3dfae;font-size:.95rem;margin-bottom:12px}
.foot-grid ul{list-style:none}
.foot-grid li{margin-bottom:8px}
.foot-grid a{color:#c9d4e8;font-size:.92rem}
.foot-grid p{font-size:.9rem}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);padding:16px 0;display:flex;
  justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:.82rem}
.disclaimer-strip{background:#0a1428;color:#9fb0cc;font-size:.78rem;padding:10px 0;text-align:center}

/* responsive */
@media(max-width:760px){
  .nav-toggle{display:block}
  .main-nav{display:none;width:100%}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column}
  .grid2,.grid3,.foot-grid,.row2{grid-template-columns:1fr}
  .hero h1{font-size:1.6rem}
  .utilbar .wrap{flex-direction:column;gap:2px}
}