/* Richmond Riverfront Estate — shared styles
   Palette: river-slate ground, cool stone content, brass accent
   Type: Marcellus (display) · Newsreader (body) · IBM Plex Mono (data/labels) */

:root{
  --river-slate:#17262a;
  --river-deep:#0f1b1e;
  --tidewater:#274744;
  --stone:#ecede8;
  --stone-2:#e2e3dc;
  --paper:#f6f6f2;
  --granite:#8f9793;
  --granite-line:#cdd0ca;
  --brass:#b08d57;
  --brass-deep:#8f6f3d;
  --ink:#161b1c;
  --ink-soft:#3d4644;
  --max:1180px;
  --pad:clamp(20px,5vw,64px);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--stone);
  color:var(--ink);
  font-family:"Newsreader",Georgia,"Times New Roman",serif;
  font-size:clamp(17px,1.15vw,19px);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brass-deep);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}

h1,h2,h3{font-family:"Marcellus",Georgia,serif;font-weight:400;line-height:1.08;letter-spacing:.005em}
h1{font-size:clamp(2.4rem,6vw,4.6rem)}
h2{font-size:clamp(1.9rem,3.6vw,2.9rem);margin:0 0 .5em}
h3{font-size:clamp(1.25rem,2vw,1.6rem);margin:0 0 .35em}
p{margin:0 0 1.1em}

.mono{font-family:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace}
.eyebrow{
  font-family:"IBM Plex Mono",monospace;
  font-size:.72rem;letter-spacing:.34em;text-transform:uppercase;
  color:var(--brass-deep);margin:0 0 1.1rem;display:block;
}
.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.center{text-align:center}
.lede{font-size:clamp(1.15rem,1.7vw,1.4rem);color:var(--ink-soft);line-height:1.55}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(23,38,42,.94);backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(176,141,87,.28);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;
  max-width:var(--max);margin:0 auto;padding:14px var(--pad)}
.brand{font-family:"Marcellus",serif;color:var(--stone);font-size:1.05rem;
  letter-spacing:.14em;text-transform:uppercase;line-height:1.1}
.brand small{display:block;font-family:"IBM Plex Mono",monospace;font-size:.58rem;
  letter-spacing:.28em;color:var(--brass);margin-top:3px}
.brand:hover{text-decoration:none}
.nav-links{display:flex;gap:26px;align-items:center;list-style:none;margin:0;padding:0}
.nav-links a{font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.16em;
  text-transform:uppercase;color:#c9d2ce}
.nav-links a:hover{color:var(--brass);text-decoration:none}
.nav-links a[aria-current="page"]{color:var(--brass)}
.nav-cta{border:1px solid var(--brass);padding:9px 15px;color:var(--brass)!important}
.nav-cta:hover{background:var(--brass);color:var(--river-deep)!important}
.nav-toggle{display:none;background:none;border:1px solid rgba(201,210,206,.4);color:#c9d2ce;
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.14em;padding:9px 12px;cursor:pointer}

@media(max-width:860px){
  .nav-toggle{display:block}
  .nav-links{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;
    gap:0;background:var(--river-slate);border-bottom:1px solid rgba(176,141,87,.3);
    max-height:0;overflow:hidden;transition:max-height .3s ease}
  .nav-links.open{max-height:420px}
  .nav-links li{width:100%;border-top:1px solid rgba(255,255,255,.06)}
  .nav-links a{display:block;padding:15px var(--pad)}
  .nav-cta{border:none}
}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:88vh;display:flex;align-items:flex-end;
  color:#fff;background:var(--river-deep);overflow:hidden}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:saturate(1.02) contrast(1.02)}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,27,30,.28) 0%,rgba(15,27,30,.15) 40%,rgba(15,27,30,.82) 100%)}
.hero-inner{position:relative;z-index:2;width:100%;max-width:var(--max);
  margin:0 auto;padding:0 var(--pad) clamp(30px,6vw,70px)}
.hero .eyebrow{color:var(--brass)}
.hero h1{color:#fff;max-width:16ch;text-shadow:0 2px 30px rgba(0,0,0,.4)}
.hero .lede{color:#e8ebe6;max-width:52ch;margin-top:1rem}
.status-tag{display:inline-flex;align-items:center;gap:9px;margin-bottom:1.4rem;
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;
  color:#e8ebe6;border:1px solid rgba(176,141,87,.6);padding:7px 14px;border-radius:2px}
.status-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--brass);
  box-shadow:0 0 0 0 rgba(176,141,87,.7);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(176,141,87,.6)}70%{box-shadow:0 0 0 9px rgba(176,141,87,0)}100%{box-shadow:0 0 0 0 rgba(176,141,87,0)}}

/* ---------- Survey data band (signature) ---------- */
.plat{background:var(--river-slate);border-top:1px solid rgba(176,141,87,.35);
  border-bottom:1px solid rgba(176,141,87,.35)}
.plat-grid{max-width:var(--max);margin:0 auto;display:grid;
  grid-template-columns:repeat(5,1fr)}
.plat-cell{padding:26px var(--pad);border-left:1px solid rgba(255,255,255,.08);text-align:center}
.plat-cell:first-child{border-left:none}
.plat-num{font-family:"IBM Plex Mono",monospace;font-size:clamp(1.4rem,2.6vw,2rem);
  color:var(--brass);letter-spacing:.02em}
.plat-lab{font-family:"IBM Plex Mono",monospace;font-size:.62rem;letter-spacing:.2em;
  text-transform:uppercase;color:#aeb8b3;margin-top:8px}
@media(max-width:760px){.plat-grid{grid-template-columns:repeat(2,1fr)}
  .plat-cell{border-top:1px solid rgba(255,255,255,.08)}
  .plat-cell:nth-child(-n+2){border-top:none}
  .plat-cell:nth-child(odd){border-left:none}}

/* ---------- Sections ---------- */
section{padding:clamp(56px,8vw,110px) 0}
.section-stone-2{background:var(--stone-2)}
.section-slate{background:var(--river-slate);color:#e9ece7}
.section-slate h2{color:#fff}
.section-slate .eyebrow{color:var(--brass)}
.section-slate a{color:var(--brass)}

.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,72px);align-items:center;
  max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.split.reverse .split-media{order:2}
.split-media img{border-radius:2px;box-shadow:0 24px 60px -30px rgba(15,27,30,.55)}
.figcap{font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--granite);margin-top:12px}
@media(max-width:820px){.split{grid-template-columns:1fr}.split.reverse .split-media{order:0}}

.narrow{max-width:760px;margin:0 auto;padding:0 var(--pad)}
.rule{width:56px;height:2px;background:var(--brass);margin:0 0 28px}
.center .rule{margin-left:auto;margin-right:auto}

/* feature list */
.facts{list-style:none;margin:1.4rem 0 0;padding:0;display:grid;gap:2px}
.facts li{display:grid;grid-template-columns:190px 1fr;gap:18px;padding:15px 0;
  border-top:1px solid var(--granite-line);align-items:baseline}
.facts li:last-child{border-bottom:1px solid var(--granite-line)}
.facts .k{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brass-deep)}
.facts .v{margin:0}
@media(max-width:560px){.facts li{grid-template-columns:1fr;gap:4px}}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
  max-width:var(--max);margin:2.4rem auto 0;padding:0 var(--pad)}
.card{background:var(--paper);border:1px solid var(--granite-line);border-radius:2px;
  padding:30px 26px}
.section-slate .card{background:rgba(255,255,255,.04);border-color:rgba(176,141,87,.25)}
.card .num{font-family:"IBM Plex Mono",monospace;color:var(--brass);font-size:.8rem;letter-spacing:.2em}
.card h3{margin-top:14px}
.card p{margin-bottom:0;font-size:.98rem;color:var(--ink-soft)}
.section-slate .card p{color:#c7cec9}
@media(max-width:820px){.cards{grid-template-columns:1fr}}

/* CTA button */
.btn{display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:.76rem;
  letter-spacing:.18em;text-transform:uppercase;padding:15px 30px;border-radius:2px;
  background:var(--brass);color:var(--river-deep);border:1px solid var(--brass);cursor:pointer}
.btn:hover{background:var(--brass-deep);border-color:var(--brass-deep);color:#fff;text-decoration:none}
.btn-ghost{background:transparent;color:var(--brass)}
.btn-ghost:hover{background:var(--brass);color:var(--river-deep)}
.section-slate .btn-ghost{color:var(--brass)}
.btn-row{display:flex;gap:16px;flex-wrap:wrap;margin-top:1.8rem}

/* full-bleed image band */
.band{position:relative;min-height:56vh;display:flex;align-items:center;color:#fff;
  background:var(--river-deep);overflow:hidden}
.band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.band::after{content:"";position:absolute;inset:0;background:rgba(15,27,30,.5)}
.band .wrap{position:relative;z-index:2}
.band h2{color:#fff;max-width:20ch}

/* ---------- Forms ---------- */
.form{max-width:640px;margin:2rem auto 0;padding:0 var(--pad)}
.field{margin-bottom:20px}
.field label{display:block;font-family:"IBM Plex Mono",monospace;font-size:.68rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--brass-deep);margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;padding:13px 15px;font-size:1rem;
  font-family:"Newsreader",serif;background:var(--paper);border:1px solid var(--granite-line);
  border-radius:2px;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--brass);border-color:var(--brass)}
.field textarea{min-height:120px;resize:vertical}
.form-note{font-family:"IBM Plex Mono",monospace;font-size:.66rem;color:var(--granite);
  letter-spacing:.05em;margin-top:6px}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;padding:0 var(--pad)}
.faq details{border-top:1px solid var(--granite-line);padding:6px 0}
.faq details:last-child{border-bottom:1px solid var(--granite-line)}
.faq summary{cursor:pointer;list-style:none;padding:22px 40px 22px 0;position:relative;
  font-family:"Marcellus",serif;font-size:1.2rem;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:20px;color:var(--brass);
  font-family:"IBM Plex Mono",monospace;font-size:1.4rem;transition:transform .2s}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 0 22px;color:var(--ink-soft);max-width:70ch}
.faq .ans p:last-child{margin-bottom:0}

/* ---------- Footer ---------- */
.site-footer{background:var(--river-deep);color:#aeb8b3;padding:64px 0 34px;
  border-top:1px solid rgba(176,141,87,.3)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;
  max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.foot-grid h4{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--brass);margin:0 0 16px}
.foot-grid a{color:#c7cec9;display:block;margin-bottom:9px;font-size:.92rem}
.foot-grid a:hover{color:var(--brass)}
.foot-brand{font-family:"Marcellus",serif;color:#fff;font-size:1.3rem;letter-spacing:.1em;
  text-transform:uppercase;margin-bottom:12px}
.foot-brand small{display:block;font-family:"IBM Plex Mono",monospace;font-size:.6rem;
  letter-spacing:.24em;color:var(--brass);margin-top:6px}
.foot-bottom{max-width:var(--max);margin:40px auto 0;padding:22px var(--pad) 0;
  border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:12px;font-family:"IBM Plex Mono",monospace;font-size:.64rem;
  letter-spacing:.12em;color:#7f8985;text-transform:uppercase}
.disclaimer{max-width:var(--max);margin:18px auto 0;padding:0 var(--pad);
  font-size:.78rem;line-height:1.5;color:#6d7773}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important;transition:none!important}
}