:root{
  --paper:#f2f5fa; --paper2:#e5ebf3; --card:#ffffff; --ink:#0d1a2b; --soft:#4a5668; --mute:#8590a0; --line:rgba(13,26,43,.12);
  --blue:#1e5eff; --blue2:#0f3fbf; --sky:#d9e5ff; --green:#0f9f6e; --green2:#dff5ec; --amber:#d98a1c; --amber2:#fbefd9; --coral:#e2553f; --coral2:#fbe3de;
  --night:#0b1422;
  --display:'Inter Tight',system-ui,sans-serif; --body:'Inter',system-ui,sans-serif; --serif:'Instrument Serif',Georgia,serif; --mono:'JetBrains Mono',ui-monospace,monospace;
  --ease:cubic-bezier(.22,1,.36,1); --r:22px;
}
*{box-sizing:border-box}
html{background:var(--paper);-webkit-text-size-adjust:100%}
body{margin:0;font:400 16px/1.6 var(--body);color:var(--ink);background:transparent;overflow-x:hidden}
img,video{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;cursor:pointer}
.serif{font-family:var(--serif);font-style:italic;font-weight:400}
.mono{font-family:var(--mono)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font:500 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--soft)}
.eyebrow::before{content:'';width:22px;height:1px;background:currentColor}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:999px;border:1px solid var(--ink);background:var(--ink);color:#fff;text-decoration:none;font:600 15px/1 var(--display);letter-spacing:-.01em;transition:transform .4s var(--ease),background .3s,color .3s}
.btn:hover{transform:translateY(-2px);background:var(--blue);border-color:var(--blue)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.light{background:#fff;color:var(--ink);border-color:#fff}
.btn .ar{transition:transform .4s var(--ease)}
.btn:hover .ar{transform:translateX(4px)}
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font:600 12px/1.4 var(--body);background:var(--paper2);color:var(--soft)}
.pill.ok{background:var(--green2);color:#0a7a54}.pill.warn{background:var(--amber2);color:#a5650c}.pill.bad{background:var(--coral2);color:#b23a28}.pill.info{background:var(--sky);color:var(--blue2)}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;display:inline-block}

/* top nav */
.nav{position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:90;width:min(1180px,calc(100% - 24px));display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 10px 10px 20px;border-radius:999px;background:rgba(255,255,255,.72);backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);border:1px solid rgba(255,255,255,.8);box-shadow:0 10px 40px -20px rgba(13,26,43,.35)}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);white-space:nowrap}
.brand .mark{flex:none;filter:drop-shadow(0 6px 14px rgba(30,94,255,.28));transition:transform .6s var(--ease)}
.brand:hover .mark{transform:rotate(-12deg) scale(1.06)}
.brand>span{display:flex;flex-direction:column;gap:3px}
.brand b{font:400 25px/.9 var(--serif);letter-spacing:-.005em;font-weight:400}
.brand small{display:block;font:500 9.5px/1 var(--mono);color:var(--mute);letter-spacing:.16em;text-transform:uppercase}
.nav .links{display:flex;gap:4px}
.nav .links a{padding:9px 14px;border-radius:999px;text-decoration:none;font:500 14px/1 var(--body);color:var(--soft);transition:background .3s,color .3s}
.nav .links a:hover,.nav .links a.on{background:var(--ink);color:#fff}
@media (max-width:860px){.nav .links a.hide-m{display:none}.nav{padding-left:14px}.brand small{display:none}}
@media (max-width:520px){.nav .links a{padding:8px 10px;font-size:13px}}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r)}
.reveal{opacity:0;transform:translateY(30px)}
.no-js .reveal{opacity:1;transform:none}
::selection{background:var(--blue);color:#fff}

/* ---------- glow surfaces ---------- */
.glow{position:relative;isolation:isolate}
.glow::after{content:'';position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:radial-gradient(260px circle at var(--mx,50%) var(--my,50%),rgba(30,94,255,.85),rgba(15,159,110,.4) 40%,transparent 70%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .4s;pointer-events:none;z-index:3}
.glow:hover::after{opacity:1}
.btn{box-shadow:0 0 0 rgba(30,94,255,0);transition:transform .45s var(--ease),background .3s,color .3s,box-shadow .4s,border-color .3s}
.btn:hover{box-shadow:0 12px 34px -8px rgba(30,94,255,.55)}
.btn.ghost:hover{box-shadow:0 12px 30px -10px rgba(13,26,43,.45)}

/* ---------- page-to-page transitions (View Transitions API) ---------- */
@view-transition{navigation:auto}
::view-transition-old(root){animation:vt-out .45s cubic-bezier(.7,0,.3,1) both}
::view-transition-new(root){animation:vt-in .7s cubic-bezier(.22,1,.36,1) both}
@keyframes vt-out{to{opacity:0;transform:scale(.96);filter:blur(4px)}}
@keyframes vt-in{from{clip-path:inset(100% 0 0 0);transform:translateY(40px)}to{clip-path:inset(0 0 0 0);transform:none}}
::view-transition-group(brand),::view-transition-group(room-hero){animation-duration:.8s;animation-timing-function:cubic-bezier(.22,1,.36,1)}
.brand>svg{view-transition-name:brand}
@media (prefers-reduced-motion:reduce){::view-transition-old(root),::view-transition-new(root){animation:none}}

/* ---------- water-flow video background ---------- */
.water-bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:#cfdcec}
.water-bg video{position:absolute;left:-4%;top:-4%;width:108%;height:108%;max-width:none;object-fit:cover;filter:saturate(1.1) brightness(1.05);animation:drift 40s ease-in-out infinite alternate}
.water-bg::after{content:'';position:absolute;inset:0;background:radial-gradient(1100px 620px at 100% -5%,rgba(30,94,255,.10),transparent 60%),radial-gradient(900px 560px at -5% 45%,rgba(15,159,110,.07),transparent 60%),linear-gradient(180deg,rgba(242,245,250,.74),rgba(242,245,250,.80))}
@keyframes drift{from{transform:scale(1) translate(0,0)}to{transform:scale(1.06) translate(-1.5%,-1%)}}
@media (prefers-reduced-motion:reduce){.water-bg video{animation:none}}