:root{
  --abyss:#030d16;
  --deep:#07233b;
  --marine:#0d3f66;
  --cyan:#4fd8ff;
  --foam:#eef7fd;
  --foam-dim:rgba(238,247,253,.72);
  --display:"Space Grotesk",system-ui,sans-serif;
  --body:"Inter",system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--body);
  background:var(--abyss);
  color:var(--foam);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--display);font-weight:600;line-height:1.05;letter-spacing:-.015em}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--display);font-weight:500;font-size:1rem;
  padding:.85rem 1.6rem;border-radius:6px;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  cursor:pointer;
}
.btn:active{transform:scale(.98)}
.btn-solid{background:var(--cyan);color:#04202e}
.btn-solid:hover{background:#7ce2ff}
.btn-ghost{border:1px solid rgba(238,247,253,.45);color:var(--foam);background:rgba(3,13,22,.25)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-big{font-size:1.15rem;padding:1.05rem 2.2rem}

/* ---------- nav ---------- */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:80;
  display:flex;align-items:center;gap:2.2rem;
  padding:1rem clamp(1.1rem,4vw,2.6rem);
  transition:background .35s ease,backdrop-filter .35s ease,padding .35s ease;
}
.nav.on{background:rgba(3,13,22,.68);backdrop-filter:blur(14px);padding-block:.65rem}
.nav-logo{display:flex;align-items:center;gap:.55rem;font-family:var(--display);font-weight:600;font-size:1.1rem;white-space:nowrap}
.nav-logo svg{width:28px;height:28px;color:var(--cyan)}
.nav-links{display:flex;gap:1.8rem;margin-left:auto;font-size:.95rem;font-weight:500}
.nav-links a{opacity:.85;transition:opacity .2s,color .2s}
.nav-links a:hover{opacity:1;color:var(--cyan)}
.nav-book{padding:.6rem 1.25rem;font-size:.92rem}
.nav-menu{display:none;background:none;border:0;cursor:pointer;width:42px;height:42px;position:relative;z-index:90}
.nav-menu span{position:absolute;left:10px;right:10px;height:2px;background:var(--foam);transition:top .3s,transform .3s}
.nav-menu span:first-child{top:16px}
.nav-menu span:last-child{top:25px}
.nav-menu.open span:first-child{top:20px;transform:rotate(45deg)}
.nav-menu.open span:last-child{top:20px;transform:rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:85;background:rgba(3,13,22,.96);
  display:none;flex-direction:column;justify-content:center;gap:.4rem;
  padding:0 clamp(1.5rem,8vw,4rem);
}
.drawer.open{display:flex}
.drawer a{font-family:var(--display);font-weight:600;font-size:2rem;padding:.7rem 0;opacity:.9}
.drawer a:hover{color:var(--cyan)}

/* ---------- scroll sequence ---------- */
.seq{position:relative;height:520svh}
.seq-pin{position:sticky;top:0;height:100svh;overflow:hidden}
.seq-canvas,.seq-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.seq-canvas{opacity:0;transition:opacity .4s}
.seq-canvas.ready{opacity:1}
.seq-shade{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,13,22,.42) 0%,rgba(3,13,22,0) 32%,rgba(3,13,22,0) 62%,rgba(3,13,22,.5) 100%);
}
.scene{
  position:absolute;inset:0;
  display:flex;flex-direction:column;justify-content:center;
  padding:0 clamp(1.25rem,6vw,5rem);
  opacity:0;visibility:hidden;
  transform:translateY(18px);
  will-change:opacity,transform;
}
.scene h1{font-size:clamp(2.5rem,6.8vw,5.6rem);font-weight:700;text-shadow:0 2px 30px rgba(3,13,22,.45)}
.scene h2{font-size:clamp(2.1rem,5.6vw,4.6rem);font-weight:700;text-shadow:0 2px 30px rgba(3,13,22,.45)}
.scene p{margin-top:1.1rem;font-size:clamp(1.05rem,2vw,1.3rem);color:var(--foam);max-width:34ch;text-shadow:0 1px 18px rgba(3,13,22,.5)}
.scene-actions{display:flex;gap:.9rem;margin-top:2rem;flex-wrap:wrap}
.s2,.s3{text-align:left}
.props{list-style:none;margin:1.6rem 0 2rem;display:flex;flex-direction:column;gap:.55rem}
.props li{
  font-family:var(--display);font-weight:500;font-size:clamp(1.05rem,2.2vw,1.35rem);
  display:flex;align-items:center;gap:.7rem;
  text-shadow:0 1px 18px rgba(3,13,22,.5);
}
.props li::before{content:"";width:22px;height:2px;background:var(--cyan);flex:none}
.s4 .btn{align-self:flex-start}
.seq-hint{
  position:absolute;left:50%;bottom:1.6rem;transform:translateX(-50%);
  width:24px;height:40px;border:1.5px solid rgba(238,247,253,.55);border-radius:13px;
  transition:opacity .4s;
}
.seq-hint span{
  position:absolute;top:7px;left:50%;width:3px;height:8px;margin-left:-1.5px;border-radius:2px;
  background:var(--cyan);animation:hint 1.8s infinite;
}
@keyframes hint{0%{transform:translateY(0);opacity:1}70%{transform:translateY(13px);opacity:0}100%{opacity:0}}
.seq-hint.off{opacity:0}

/* ---------- experiences ---------- */
.exp{padding:clamp(4rem,9vw,7rem) 0 0}
.exp-head{padding:0 clamp(1.25rem,6vw,5rem) clamp(2rem,4vw,3rem)}
.exp-head h2{font-size:clamp(2rem,4.6vw,3.6rem);max-width:24ch}
.exp-head p{color:var(--foam-dim);margin-top:.7rem;max-width:52ch}
.exp-row{
  position:relative;display:flex;align-items:flex-end;
  aspect-ratio:21/9;
  min-height:440px;max-height:86svh;
  background-size:cover;background-position:center;
  isolation:isolate;overflow:hidden;
}
@media (max-width:700px){
  .exp-row{background-position:66% center}
}
.exp-row::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(3,13,22,0) 35%,rgba(3,13,22,.72) 100%);
  transition:background .3s;
}
.exp-deep{background:radial-gradient(130% 120% at 85% 0%,var(--marine) 0%,var(--deep) 55%,var(--abyss) 100%);min-height:min(52svh,440px)}
.exp-info{padding:clamp(1.5rem,5vw,3.5rem)}
.exp-tag{
  font-family:var(--display);font-weight:500;font-size:.85rem;color:var(--cyan);
}
.exp-row h3{font-size:clamp(2rem,5vw,3.6rem);margin:.4rem 0 .6rem}
.exp-row p{color:var(--foam);max-width:48ch;text-shadow:0 1px 14px rgba(3,13,22,.6)}
.exp-cta{
  display:inline-flex;align-items:center;gap:.5rem;
  margin-top:1.3rem;font-family:var(--display);font-weight:600;font-size:1.05rem;color:var(--cyan);
}
.exp-cta::after{content:"→";transition:transform .25s}
.exp-row:hover .exp-cta::after{transform:translateX(6px)}
.exp-row{transition:transform .5s ease}

/* ---------- learn ---------- */
.learn{padding:clamp(4.5rem,10vw,8rem) clamp(1.25rem,6vw,5rem)}
.learn-copy{max-width:46rem}
.learn h2{font-size:clamp(1.9rem,4.4vw,3.4rem);margin-bottom:1.2rem}
.learn p{color:var(--foam-dim);max-width:58ch}
.learn p+p{margin-top:1rem}

/* ---------- location ---------- */
.place{
  position:relative;background-size:cover;background-position:center;isolation:isolate;
  padding:clamp(5rem,12vw,10rem) clamp(1.25rem,6vw,5rem);
}
.place::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(3,13,22,.72) 0%,rgba(3,13,22,.25) 70%)}
.place h2{font-size:clamp(2.6rem,7vw,5.4rem)}
.place p{margin-top:1rem;max-width:40ch;color:var(--foam)}
.place-actions{display:flex;gap:.9rem;margin-top:2rem;flex-wrap:wrap}

/* ---------- faq ---------- */
.faq{padding:clamp(4rem,9vw,7rem) clamp(1.25rem,6vw,5rem);max-width:56rem}
.faq h2{font-size:clamp(1.9rem,4.4vw,3.2rem);margin-bottom:1.6rem}
.faq details{margin-bottom:.4rem}
.faq summary{
  cursor:pointer;list-style:none;position:relative;
  font-family:var(--display);font-weight:500;font-size:1.15rem;
  padding:1rem 2.6rem 1rem 0;
  color:var(--foam);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:.3rem;top:50%;transform:translateY(-50%);
  color:var(--cyan);font-size:1.4rem;font-weight:400;transition:transform .25s;
}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{color:var(--foam-dim);padding-bottom:1rem;max-width:56ch}

/* ---------- final ---------- */
.final{
  position:relative;background-size:cover;background-position:center;isolation:isolate;
  min-height:88svh;display:flex;align-items:center;justify-content:center;text-align:center;
  padding:4rem 1.25rem;
}
.final::after{content:"";position:absolute;inset:0;z-index:-1;background:rgba(3,13,22,.45)}
.final h2{font-size:clamp(3rem,9vw,6.5rem);font-weight:700}
.final p{margin:.8rem 0 2rem;font-size:1.15rem;color:var(--foam)}

/* ---------- footer ---------- */
.footer{padding:2.2rem clamp(1.25rem,6vw,5rem) 5.5rem;border-top:1px solid rgba(238,247,253,.08)}
.footer-row{display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;color:var(--foam-dim);font-size:.92rem}
.footer-links{display:flex;gap:1.6rem;flex-wrap:wrap}
.footer-links a:hover{color:var(--cyan)}
.footer-fine{margin-top:1rem;font-size:.8rem;color:rgba(238,247,253,.4)}

/* ---------- mobile book bar ---------- */
.bookbar{
  position:fixed;left:1rem;right:1rem;bottom:1rem;z-index:70;
  display:none;padding:1rem;font-size:1.05rem;
  box-shadow:0 10px 30px rgba(3,13,22,.5);
  transform:translateY(130%);transition:transform .35s ease;
}
.bookbar.show{transform:none}

/* ---------- fallback (no sequence) ---------- */
body.noseq .seq{height:auto}
body.noseq .seq-pin{position:relative;height:100svh}
body.noseq .seq-canvas,body.noseq .seq-hint{display:none}
body.noseq .scene{position:relative;inset:auto;opacity:1;visibility:visible;transform:none;padding-block:4rem;height:auto}
body.noseq .s2,body.noseq .s3,body.noseq .s4{background:var(--abyss)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .seq-hint span{animation:none}
}

/* ---------- responsive ---------- */
@media (max-width:820px){
  .nav{gap:.8rem}
  .nav-links{display:none}
  .nav-logo{font-size:.98rem}
  .nav-logo svg{width:23px;height:23px}
  .nav-book{margin-left:auto;padding:.5rem .95rem;font-size:.88rem;white-space:nowrap}
  .nav-menu{display:block;flex:none}
  .scene{justify-content:flex-end;padding-bottom:16svh}
  .s1{justify-content:flex-end}
  .scene-actions .btn{flex:1;min-width:10rem}
  .bookbar{display:flex}
  .footer{padding-bottom:6.5rem}
}