/* ReserveChain.io — institutional RWA tokenization platform, contest demo */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --navy-950:#05070d;
  --navy-900:#0a0f1c;
  --navy-800:#0f1626;
  --navy-700:#161f34;
  --navy-600:#212c47;
  --navy-500:#324062;
  --line:#25304a;
  --line-soft:#1a2338;
  --ink:#eef1f7;
  --ink-dim:#c3cadb;
  --ink-mute:#8b96ad;
  --gold-400:#f2d488;
  --gold-500:#d9b35b;
  --gold-600:#c9a227;
  --gold-700:#a3801a;
  --copper:#c9784a;
  --copper-soft:#e0a679;
  --nickel:#b9c2cc;
  --nickel-soft:#dde2e7;
  --ok:#5fb88a;
  --warn:#e0b04a;
  --danger:#e07070;
  --radius:14px;
  --radius-sm:8px;
  --shadow-lg:0 20px 60px -20px rgba(0,0,0,.55);
  --shadow-sm:0 8px 24px -12px rgba(0,0,0,.5);
  font-size:16px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:radial-gradient(1200px 600px at 15% -10%, #101a30 0%, transparent 60%),
             radial-gradient(1000px 500px at 100% 0%, #17223a 0%, transparent 55%),
             var(--navy-950);
  color:var(--ink);
  font-family:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Playfair Display', Georgia, serif;
  color:var(--ink);
  margin:0 0 .5em;
  letter-spacing:.2px;
}
h1{font-size:clamp(2.1rem,4vw,3.4rem); font-weight:700; line-height:1.12;}
h2{font-size:clamp(1.6rem,2.6vw,2.3rem); font-weight:700;}
h3{font-size:1.25rem; font-weight:600;}
p{color:var(--ink-dim); margin:0 0 1em;}
a{color:var(--gold-500); text-decoration:none;}
a:hover{color:var(--gold-400);}
small, .small{font-size:.82rem;}
code, .mono{font-family:'JetBrains Mono', 'Consolas', monospace;}
.container{max-width:1180px; margin:0 auto; padding:0 24px;}
.container-narrow{max-width:840px; margin:0 auto; padding:0 24px;}
section{padding:76px 0;}
section.tight{padding:48px 0;}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:'Inter'; font-size:.72rem; font-weight:700; letter-spacing:1.6px;
  text-transform:uppercase; color:var(--gold-500);
  margin-bottom:14px;
}
.eyebrow::before{content:''; width:22px; height:1px; background:var(--gold-600); display:inline-block;}

/* ---------- Nav ---------- */
.topbar{
  position:sticky; top:0; z-index:100;
  background:rgba(6,9,17,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.nav{display:flex; align-items:center; justify-content:space-between; padding:12px 0;}
.brand{display:flex; align-items:center; gap:10px; font-family:'Playfair Display'; font-weight:700; font-size:1.15rem; color:var(--ink);}
.brand img{height:34px; width:auto; display:block;}
.brand .gold{color:var(--gold-500);}
.navlinks{display:flex; align-items:center; gap:26px; flex-wrap:wrap;}
.navlinks a{color:var(--ink-dim); font-size:.88rem; font-weight:500;}
.navlinks a:hover{color:var(--gold-400);}
.navlinks a.active{color:var(--gold-500);}
.nav-cta{
  display:inline-flex; align-items:center; gap:8px;
  background:linear-gradient(135deg, var(--gold-400), var(--gold-600));
  color:#1a1305 !important; font-weight:700; font-size:.85rem;
  padding:10px 18px; border-radius:999px; box-shadow:var(--shadow-sm);
  white-space:nowrap;
}
.nav-cta:hover{filter:brightness(1.06);}
.navtoggle{display:none; background:none; border:1px solid var(--line); color:var(--ink); border-radius:8px; padding:8px 10px;}

@media (max-width:920px){
  .navlinks{
    position:absolute; top:64px; left:0; right:0;
    background:var(--navy-900); border-bottom:1px solid var(--line-soft);
    flex-direction:column; align-items:flex-start; gap:0;
    padding:8px 24px 18px; display:none;
  }
  .navlinks.open{display:flex;}
  .navlinks a{padding:10px 0; width:100%; border-bottom:1px solid var(--line-soft);}
  .navtoggle{display:inline-block;}
}

/* ---------- Disclosure banner ---------- */
.disclosure{
  background:linear-gradient(180deg, #1c1608, #120e05);
  border-bottom:1px solid #3a2c0f;
  color:#e8d19b;
  font-size:.82rem;
}
.disclosure .container{display:flex; gap:12px; align-items:flex-start; padding-top:10px; padding-bottom:10px;}
.disclosure strong{color:var(--gold-400);}
.disclosure svg{flex:none; margin-top:2px;}

/* ---------- Hero ---------- */
.hero{padding:70px 0 40px; position:relative;}
.hero-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center;}
@media(max-width:920px){.hero-grid{grid-template-columns:1fr;}}
.hero-badges{display:flex; gap:10px; flex-wrap:wrap; margin:22px 0 30px;}
.badge{
  display:inline-flex; align-items:center; gap:8px;
  border:1px solid var(--line); background:var(--navy-800);
  padding:8px 14px; border-radius:999px; font-size:.8rem; color:var(--ink-dim);
}
.badge .dot{width:7px; height:7px; border-radius:50%; background:var(--gold-500);}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap;}
.hero-art{
  border-radius:20px; border:1px solid var(--line);
  background:linear-gradient(160deg, var(--navy-800), var(--navy-900));
  padding:36px; box-shadow:var(--shadow-lg); text-align:center;
}
.hero-art img{width:100%; max-width:320px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 24px; border-radius:10px; font-weight:600; font-size:.92rem;
  cursor:pointer; border:1px solid transparent; transition:transform .15s ease, filter .15s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:linear-gradient(135deg, var(--gold-400), var(--gold-600)); color:#1a1305;}
.btn-primary:hover{filter:brightness(1.05); color:#1a1305;}
.btn-outline{border-color:var(--line-soft); color:var(--ink); background:var(--navy-800);}
.btn-outline:hover{border-color:var(--gold-600); color:var(--gold-400);}
.btn-block{width:100%;}
.btn-sm{padding:9px 16px; font-size:.82rem;}

/* ---------- Cards / grids ---------- */
.grid{display:grid; gap:22px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media(max-width:920px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);} }
@media(max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;} }

.card{
  background:var(--navy-800); border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:26px; box-shadow:var(--shadow-sm);
}
.card:hover{border-color:var(--line);}
.card-icon{
  width:46px; height:46px; border-radius:12px; display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg, rgba(217,179,91,.18), rgba(217,179,91,.04));
  border:1px solid rgba(217,179,91,.25); margin-bottom:16px;
}
.program-card{
  border-radius:18px; border:1px solid var(--line-soft); overflow:hidden;
  background:var(--navy-800); display:flex; flex-direction:column;
}
.program-card .swatch{height:8px; width:100%;}
.swatch-copper{background:linear-gradient(90deg,#8a4a24,#c9784a,#e0a679);}
.swatch-nickel{background:linear-gradient(90deg,#6d7681,#b9c2cc,#e8ecef);}
.program-card .body{padding:28px;}
.program-card .tag{
  display:inline-block; font-size:.7rem; font-weight:700; letter-spacing:1px; text-transform:uppercase;
  padding:4px 10px; border-radius:999px; margin-bottom:12px;
}
.tag-copper{background:rgba(201,120,74,.15); color:var(--copper-soft); border:1px solid rgba(201,120,74,.35);}
.tag-nickel{background:rgba(185,194,204,.12); color:var(--nickel-soft); border:1px solid rgba(185,194,204,.3);}

/* ---------- Stat / spec tables ---------- */
.stat-row{display:flex; justify-content:space-between; gap:12px; padding:12px 0; border-bottom:1px solid var(--line-soft); font-size:.9rem;}
.stat-row:last-child{border-bottom:none;}
.stat-row .k{color:var(--ink-mute);}
.stat-row .v{color:var(--ink); font-weight:600; text-align:right;}

table.spec{width:100%; border-collapse:collapse; font-size:.88rem;}
table.spec th{text-align:left; color:var(--ink-mute); font-weight:600; font-size:.76rem; text-transform:uppercase; letter-spacing:.6px; padding:10px 12px; border-bottom:1px solid var(--line);}
table.spec td{padding:12px; border-bottom:1px solid var(--line-soft); color:var(--ink-dim);}
table.spec tr:hover td{background:rgba(255,255,255,.015);}
.status-pill{display:inline-flex; align-items:center; gap:6px; font-size:.74rem; font-weight:600; padding:4px 10px; border-radius:999px;}
.status-illustrative{background:rgba(224,176,74,.14); color:var(--warn); border:1px solid rgba(224,176,74,.3);}
.status-pending{background:rgba(139,150,173,.14); color:var(--ink-mute); border:1px solid var(--line);}
.status-inactive{background:rgba(224,112,112,.12); color:var(--danger); border:1px solid rgba(224,112,112,.28);}

/* ---------- Section headers ---------- */
.section-head{max-width:680px; margin-bottom:44px;}
.section-head.center{margin-left:auto; margin-right:auto; text-align:center;}

/* ---------- Timeline (roadmap) ---------- */
.timeline{position:relative; padding-left:28px; border-left:2px solid var(--line-soft);}
.tl-item{position:relative; padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:''; position:absolute; left:-34px; top:4px; width:12px; height:12px; border-radius:50%; background:var(--navy-900); border:2px solid var(--gold-600);}
.tl-phase{font-size:.72rem; text-transform:uppercase; letter-spacing:1px; color:var(--gold-500); font-weight:700; margin-bottom:4px;}

/* ---------- Callout / disclosure box ---------- */
.callout{
  border-radius:var(--radius); border:1px solid rgba(224,176,74,.3);
  background:linear-gradient(180deg, rgba(224,176,74,.08), rgba(224,176,74,.02));
  padding:24px 26px; font-size:.92rem; color:#ecdcae;
}
.callout strong{color:var(--gold-400);}
.callout-danger{border-color:rgba(224,112,112,.35); background:linear-gradient(180deg, rgba(224,112,112,.08), rgba(224,112,112,.02)); color:#f1cccc;}
.callout-danger strong{color:#f0a3a3;}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line-soft); padding:18px 0;}
.faq-q{display:flex; justify-content:space-between; align-items:center; cursor:pointer; font-weight:600; color:var(--ink); gap:16px;}
.faq-q .chev{transition:transform .2s ease; color:var(--gold-500); flex:none;}
.faq-item.open .faq-q .chev{transform:rotate(45deg);}
.faq-a{max-height:0; overflow:hidden; transition:max-height .25s ease;}
.faq-item.open .faq-a{max-height:400px;}
.faq-a p{padding-top:12px; margin-bottom:0;}

/* ---------- Forms ---------- */
.form-grid{display:grid; gap:16px;}
label{display:block; font-size:.82rem; font-weight:600; color:var(--ink-dim); margin-bottom:6px;}
input[type=text],input[type=email],input[type=tel],select,textarea{
  width:100%; background:var(--navy-700); border:1px solid var(--line); border-radius:10px;
  padding:12px 14px; color:var(--ink); font-family:inherit; font-size:.92rem;
}
input:focus,select:focus,textarea:focus{outline:none; border-color:var(--gold-600);}
.checkline{display:flex; gap:10px; align-items:flex-start; font-size:.82rem; color:var(--ink-mute);}
.checkline input{margin-top:4px;}
.hp-field{position:absolute; left:-9999px; opacity:0;}
.form-msg{margin-top:14px; font-size:.88rem; padding:12px 14px; border-radius:10px; display:none;}
.form-msg.show{display:block;}
.form-msg.ok{background:rgba(95,184,138,.12); border:1px solid rgba(95,184,138,.3); color:#a9dcc2;}
.form-msg.err{background:rgba(224,112,112,.12); border:1px solid rgba(224,112,112,.3); color:#f0b8b8;}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line-soft); background:var(--navy-900); padding:52px 0 26px;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px;}
@media(max-width:820px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr;}}
.footer-grid h4{font-size:.8rem; text-transform:uppercase; letter-spacing:1px; color:var(--ink-mute); font-family:'Inter'; font-weight:700;}
.footer-grid a{display:block; color:var(--ink-dim); font-size:.88rem; padding:5px 0;}
.footer-grid a:hover{color:var(--gold-400);}
.footer-bottom{margin-top:40px; padding-top:24px; border-top:1px solid var(--line-soft); display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:.78rem; color:var(--ink-mute);}
.footer-legal{margin-top:22px; font-size:.76rem; color:var(--ink-mute); line-height:1.7; max-width:960px;}

/* ---------- Utilities ---------- */
.pill-row{display:flex; gap:10px; flex-wrap:wrap;}
.center{text-align:center;}
.mt-0{margin-top:0;} .mb-0{margin-bottom:0;}
.text-mute{color:var(--ink-mute);}
.divider{height:1px; background:var(--line-soft); margin:40px 0;}
.breadcrumb{font-size:.8rem; color:var(--ink-mute); margin-bottom:18px;}
.breadcrumb a{color:var(--ink-mute);}
.breadcrumb a:hover{color:var(--gold-400);}
.page-hero{padding:52px 0 20px;}
.icon-copper{color:var(--copper-soft);}
.icon-nickel{color:var(--nickel-soft);}
/* ---------- Scroll reveal ---------- */
.reveal{opacity:0; transform:translateY(18px); transition:opacity .6s cubic-bezier(.4,0,.2,1), transform .6s cubic-bezier(.4,0,.2,1);}
.reveal.in{opacity:1; transform:none;}
@media print{ .reveal{opacity:1 !important; transform:none !important;} }
@media (prefers-reduced-motion: reduce){ .reveal{opacity:1; transform:none; transition:none;} }

/* ---------- Architecture diagram ---------- */
.arch-diagram{max-width:960px; margin:0 auto;}
.arch-layer-label{
  text-align:center; font-size:.72rem; font-weight:700; text-transform:uppercase; letter-spacing:1.4px;
  color:var(--gold-500); margin-bottom:12px;
}
.arch-row{display:flex; gap:14px; flex-wrap:wrap; justify-content:center;}
.arch-box{
  flex:1 1 160px; min-width:150px; max-width:220px; text-align:center;
  background:var(--navy-800); border:1px solid var(--line); border-radius:10px;
  padding:14px 12px; font-size:.85rem; font-weight:600; color:var(--ink-dim);
  box-shadow:var(--shadow-sm);
}
.arch-row.single .arch-box{max-width:none; flex:1 1 100%;}
.arch-box.accent{border-color:rgba(217,179,91,.4); color:var(--gold-400); background:linear-gradient(180deg, rgba(217,179,91,.08), rgba(217,179,91,.02));}
.arch-connector{
  width:2px; height:30px; background:linear-gradient(var(--line), var(--gold-600));
  margin:6px auto; position:relative;
}
.arch-connector::after{
  content:''; position:absolute; bottom:-1px; left:50%; transform:translateX(-50%);
  border-left:5px solid transparent; border-right:5px solid transparent; border-top:6px solid var(--gold-600);
}

.demo-tag{
  position:fixed; bottom:18px; right:18px; z-index:200;
  background:var(--navy-800); border:1px solid var(--gold-700); color:var(--gold-400);
  font-size:.72rem; font-weight:600; padding:8px 14px; border-radius:999px; box-shadow:var(--shadow-sm);
}
@media(max-width:640px){.demo-tag{left:18px; right:18px; text-align:center;}}