/* ————— Rivr design system — the app's glass language ————— */
:root{
  --bg:#071D20;
  --bg2:#0B2B2E;
  --panel:rgba(232,244,242,.045);
  --panel-strong:rgba(232,244,242,.08);
  --line:rgba(232,244,242,.12);
  --line-strong:rgba(232,244,242,.22);
  --foam:#E8F4F2;
  --mist:#AFC8C4;
  --faint:#7C9793;
  --current:#3FD8C2;
  --amber:#E8B84B;
  --gold:#A58C5A;
  --grad:linear-gradient(92deg,#3FD8C2 0%,#8FD8A8 55%,#E8B84B 100%);
  --radius:20px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(1100px 500px at 80% -5%, rgba(63,216,194,.07), transparent 60%),
    radial-gradient(900px 500px at 5% 30%, rgba(232,184,75,.04), transparent 55%),
    var(--bg);
  color:var(--mist);
  font-family:"Inter",system-ui,-apple-system,sans-serif;
  font-size:16.5px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--current);text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--current);outline-offset:3px;border-radius:6px}
::selection{background:var(--current);color:var(--bg)}
img{max-width:100%;display:block}
h1,h2,h3,.display{font-family:"Space Grotesk","Inter",sans-serif;color:var(--foam);letter-spacing:-.02em}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}

/* gradient text emphasis */
.gx{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* pill badge (eyebrow) */
.pill{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--current);background:rgba(63,216,194,.09);border:1px solid rgba(63,216,194,.25);padding:7px 14px;border-radius:999px}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--current)}
.pill.warm{color:var(--amber);background:rgba(232,184,75,.08);border-color:rgba(232,184,75,.28)}
.pill.warm::before{background:var(--amber)}

/* ————— nav ————— */
header{position:sticky;top:0;z-index:40;background:rgba(7,29,32,.75);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.mast{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:15px 0}
.wordmark{font-family:"Space Grotesk",sans-serif;font-size:1.4rem;font-weight:600;color:var(--foam);display:flex;align-items:center;gap:10px}
.mast nav{display:flex;gap:6px;align-items:center;font-size:.95rem;font-weight:500}
.mast nav a{color:var(--mist);padding:8px 13px;border-radius:10px;transition:color .15s,background .15s}
.mast nav a:hover{color:var(--foam);background:var(--panel-strong)}
.mast nav a[aria-current="page"]{color:var(--current)}
.mast nav a.go{color:var(--bg);background:var(--current);font-weight:600;padding:9px 18px;border-radius:12px;margin-left:6px}
.mast nav a.go:hover{filter:brightness(1.1);background:var(--current);color:var(--bg)}

/* ————— buttons ————— */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:"Inter",sans-serif;font-weight:600;font-size:1rem;padding:14px 28px;border-radius:14px;border:0;cursor:pointer;transition:transform .18s ease,filter .18s ease,box-shadow .18s ease}
.btn-primary{color:#052a26;background:var(--current);box-shadow:0 10px 34px rgba(63,216,194,.22)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 16px 40px rgba(63,216,194,.3)}
.btn-ghost{color:var(--foam);background:var(--panel);border:1px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--current);color:var(--current);transform:translateY(-2px)}
.btn-amber{color:#2a1f05;background:var(--amber);box-shadow:0 10px 34px rgba(232,184,75,.2)}
.btn-amber:hover{filter:brightness(1.06);transform:translateY(-2px)}
.link-arrow{font-weight:600;display:inline-flex;align-items:center;gap:7px}
.link-arrow::after{content:"→";transition:transform .18s ease}
.link-arrow:hover::after{transform:translateX(4px)}

/* ————— hero ————— */
.hero-band{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-photo{position:absolute;inset:0;background:url("/img/sq-02.jpg") center 32%/cover no-repeat;opacity:.35}
.hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,29,32,.45),rgba(7,29,32,.88) 75%,var(--bg))}
.confluence{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.confluence path{fill:none;stroke-linecap:round}
.stream{stroke:rgba(63,216,194,.32);stroke-width:1.4;stroke-dasharray:7 150;animation:flow 9s linear infinite}
.stream.faint{stroke:rgba(232,244,242,.15);animation-duration:13s}
.stream.warm{stroke:rgba(232,184,75,.24);animation-duration:11s}
@keyframes flow{to{stroke-dashoffset:-157}}
.hero{position:relative;padding:120px 0 100px;text-align:center}
.hero .pill{margin-bottom:26px}
h1{font-size:clamp(2.7rem,6.6vw,4.8rem);font-weight:600;line-height:1.06;max-width:21ch;margin:0 auto;text-wrap:balance}
.hero .lede{max-width:52ch;margin:26px auto 40px;font-size:1.2rem;color:var(--mist)}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* page hero (subpages) */
.page-hero{padding:90px 0 60px;text-align:center}
.page-hero .pill{margin-bottom:22px}
.page-hero h1{font-size:clamp(2.3rem,5vw,3.6rem)}
.page-hero .lede{max-width:56ch;margin:22px auto 0;font-size:1.15rem}

/* ————— sections ————— */
section{padding:88px 0}
.sect-head{text-align:center;max-width:720px;margin:0 auto 56px}
.sect-head .pill{margin-bottom:20px}
h2{font-size:clamp(1.9rem,4vw,2.8rem);font-weight:600;line-height:1.12;text-wrap:balance}
.sect-head p{margin-top:16px;font-size:1.1rem}

/* ————— glass cards + bento ————— */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:transform .22s ease,border-color .22s ease,background .22s ease}
.card:hover{transform:translateY(-4px);border-color:rgba(63,216,194,.4);background:var(--panel-strong)}
.card h3{font-size:1.25rem;font-weight:600;margin-bottom:10px}
.card p{font-size:.98rem}
.card .icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(63,216,194,.12);border:1px solid rgba(63,216,194,.25);margin-bottom:18px;font-size:1.2rem}
.card ul{list-style:none;margin-top:12px}
.card li{padding:8px 0;border-bottom:1px solid var(--line);font-size:.96rem;color:var(--mist)}
.card li:last-child{border-bottom:0}
.card li::before{content:"◦ ";color:var(--current)}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}

/* bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.bento .card.b-lg{grid-column:span 4}
.bento .card.b-sm{grid-column:span 2}
.bento .card.b-half{grid-column:span 3}
.bento .photo-cell{padding:0;overflow:hidden;min-height:260px;position:relative}
.bento .photo-cell img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .5s ease}
.bento .photo-cell:hover img{transform:scale(1.04)}
.bento .photo-cell .tag{position:absolute;left:16px;bottom:14px;z-index:2;background:rgba(7,29,32,.72);backdrop-filter:blur(8px);border:1px solid var(--line-strong);color:var(--foam);font-size:.82rem;font-weight:600;padding:6px 12px;border-radius:999px}

/* split (image + content) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.rev .media{order:2}
.media{border-radius:24px;overflow:hidden;border:1px solid var(--line-strong);box-shadow:0 24px 60px rgba(0,0,0,.35);aspect-ratio:4/4.4;position:relative}
.media img{width:100%;height:100%;object-fit:cover}
.split h2{margin-bottom:14px}
.split .pill{margin-bottom:18px}

/* spec/accordion-style rows */
.rows{border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:200px 1fr;gap:22px;padding:20px 12px;border-bottom:1px solid var(--line);border-radius:10px;transition:background .2s}
.row:hover{background:var(--panel)}
.row dt{color:var(--foam);font-weight:600;font-family:"Space Grotesk",sans-serif;font-size:1.05rem}
.row dd{font-size:.98rem}

/* marquee */
.marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;background:var(--panel)}
.marquee-track{display:flex;gap:56px;width:max-content;animation:scroll 34s linear infinite;font-family:"Space Grotesk",sans-serif;font-weight:500;color:var(--faint);font-size:1.02rem;white-space:nowrap}
.marquee-track span b{color:var(--current);font-weight:500}
@keyframes scroll{to{transform:translateX(-50%)}}

/* stats strip */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat .n{font-family:"Space Grotesk",sans-serif;font-size:2.3rem;font-weight:600;color:var(--foam)}
.stat .l{font-size:.9rem;color:var(--faint)}

/* dark photo banner */
.banner{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.banner .bg{position:absolute;inset:0;background:url("/img/sq-15.jpg") center/cover no-repeat;opacity:.32}
.banner .veil{position:absolute;inset:0;background:linear-gradient(180deg,var(--bg),rgba(7,29,32,.55) 45%,var(--bg))}
.banner section{position:relative;text-align:center}

/* subscribe card */
.sub-card{max-width:780px;margin:0 auto;background:var(--panel);border:1px solid var(--line-strong);border-radius:24px;padding:46px 38px;text-align:center;backdrop-filter:blur(10px)}
.sub-form{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.sub-form input{font-family:inherit;font-size:.98rem;padding:13px 16px;border:1px solid var(--line-strong);border-radius:12px;background:rgba(7,29,32,.6);color:var(--foam);min-width:170px}
.sub-form input::placeholder{color:var(--faint)}
.sub-form input:focus{outline:none;border-color:var(--current)}

/* footer */
footer{border-top:1px solid var(--line);padding:44px 0 64px;font-size:.93rem;color:var(--faint)}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot a{color:var(--mist)}
.foot a:hover{color:var(--current)}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}

/* reveal */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

@media (max-width:900px){
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
  .bento .card.b-lg,.bento .card.b-sm,.bento .card.b-half{grid-column:span 6}
  .split{grid-template-columns:1fr;gap:32px}
  .split.rev .media{order:0}
  .stats{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .mast nav .hide-sm{display:none}
  .row{grid-template-columns:1fr;gap:6px}
}
@media (max-width:520px){.grid-3,.grid-4{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){
  .stream{animation:none;stroke-dasharray:none;opacity:.3}
  .marquee-track{animation:none}
  .rv{opacity:1;transform:none;transition:none}
  .card,.btn,.media img{transition:none}
}