:root{
  --lake:#8FD3F4;
  --lake-deep:#3E7FB0;
  --stone:#1E4468;
  --mist:#FBFDFF;
  --azure:#CDEBFB;
  --moon:#EFFAFF;
  --jade:#7FBBDD;
  --sun:#FFEBB0;

  --font-display:'Fraunces', serif;
  --font-body:'Work Sans', sans-serif;
  --font-mono:'JetBrains Mono', monospace;
}

*{box-sizing:border-box; margin:0; padding:0;}
html,body{height:100%;}
body{
  font-family:var(--font-body);
  background:var(--stone);
  color:var(--mist);
  min-height:100vh;
  display:flex;
  flex-direction:column;
  overflow-x:hidden;
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important;}
}

/* ---------- Ambient backdrop ---------- */
.scene{
  position:fixed; inset:0; z-index:0; overflow:hidden;
  background:
    radial-gradient(ellipse at 50% -10%, rgba(255,235,176,0.28), transparent 55%),
    linear-gradient(180deg, var(--stone) 0%, var(--lake-deep) 55%, var(--lake) 100%);
}
.scene svg{position:absolute; bottom:0; left:0; width:100%; height:auto; opacity:0.85;}
.sun{
  position:absolute; top:8%; left:50%; transform:translateX(-50%);
  width:150px; height:150px; border-radius:50%;
  background:radial-gradient(circle, var(--sun) 0%, rgba(255,235,176,0.3) 70%, transparent 78%);
  filter:blur(1px);
  animation: glow 8s ease-in-out infinite;
}
@keyframes glow{ 0%,100%{opacity:0.8;} 50%{opacity:1;} }

/* ---------- Layout ---------- */
.wrap{position:relative; z-index:1; flex:1; display:flex; flex-direction:column; min-height:100vh;}

header{ padding:2.2rem 1.5rem 1rem; text-align:center; }
.eyebrow{
  font-family:var(--font-mono); font-size:0.7rem; letter-spacing:0.22em;
  text-transform:uppercase; color:var(--moon); opacity:0.95; margin-bottom:0.6rem;
}
h1{
  font-family:var(--font-display); font-weight:400; font-style:italic;
  font-size:clamp(2.1rem, 6vw, 3.4rem);
  letter-spacing:-0.01em; color:var(--mist);
}
h1 .heart-mark{ font-style:normal; padding:0 0.06em; }
.tagline{
  font-family:var(--font-body); font-weight:300; font-size:1rem;
  color:rgba(251,253,255,0.85); margin-top:0.7rem; max-width:36rem; margin-inline:auto;
  line-height:1.55;
}

/* ---------- Install prompt ---------- */
.install-bar{
  display:none; align-items:center; justify-content:center; gap:0.7rem;
  margin:0.9rem auto 0; max-width:640px; width:calc(100% - 2.4rem);
  background:rgba(255,255,255,0.7); border:1px solid rgba(62,127,176,0.35);
  border-radius:12px; padding:0.65rem 1rem; font-size:0.85rem; color:var(--stone);
}
.install-bar.show{display:flex;}
.install-bar button{
  font-family:var(--font-mono); font-size:0.72rem; text-transform:uppercase; letter-spacing:0.05em;
  background:var(--stone); color:var(--mist); border:none; border-radius:8px;
  padding:0.4rem 0.8rem; cursor:pointer; font-weight:700;
}

/* ---------- Chat shell ---------- */
main{ flex:1; display:flex; justify-content:center; padding:0.5rem 1.2rem 1.5rem; }
.chatcard{
  width:100%; max-width:640px; display:flex; flex-direction:column;
  background:rgba(255,255,255,0.55);
  border:1px solid rgba(62,127,176,0.25);
  border-radius:18px;
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  box-shadow:0 30px 60px -20px rgba(30,68,104,0.25);
  overflow:hidden; min-height:0;
}

.thread{
  flex:1; overflow-y:auto; padding:1.4rem 1.3rem 0.6rem;
  display:flex; flex-direction:column; gap:1rem; max-height:50vh;
  scrollbar-width:thin; scrollbar-color:var(--jade) transparent;
}
.thread::-webkit-scrollbar{width:6px;}
.thread::-webkit-scrollbar-thumb{background:var(--jade); border-radius:6px;}

.msg{max-width:82%; line-height:1.55; font-size:0.96rem; animation:rise 0.35s ease both; white-space:pre-wrap;}
@keyframes rise{ from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:translateY(0);} }

.msg.bot{
  align-self:flex-start; color:var(--stone);
  background:rgba(255,255,255,0.75); border:1px solid rgba(62,127,176,0.2);
  padding:0.85rem 1.05rem; border-radius:4px 16px 16px 16px;
}
.msg.user{
  align-self:flex-end; color:var(--stone);
  background:var(--lake-deep);
  color:#fff;
  padding:0.85rem 1.05rem; border-radius:16px 4px 16px 16px; font-weight:500;
}
.msg .label{
  display:block; font-family:var(--font-mono); font-size:0.62rem;
  letter-spacing:0.14em; text-transform:uppercase; opacity:0.6; margin-bottom:0.35rem;
}

/* ripple typing indicator */
.ripple-wrap{align-self:flex-start; display:flex; align-items:center; gap:0.5rem; padding:0.4rem 0.2rem;}
.ripple{ width:14px; height:14px; border:1.5px solid var(--lake-deep); border-radius:50%; opacity:0; animation:ripple 1.6s ease-out infinite; }
.ripple:nth-child(2){animation-delay:0.35s;}
.ripple:nth-child(3){animation-delay:0.7s;}
@keyframes ripple{ 0%{transform:scale(0.3); opacity:0.9;} 100%{transform:scale(2.6); opacity:0;} }
.ripple-label{font-family:var(--font-mono); font-size:0.68rem; opacity:0.6; letter-spacing:0.08em; color:var(--stone);}

/* quick replies */
.quick{ display:flex; flex-wrap:wrap; gap:0.5rem; padding:0.9rem 1.3rem 0.3rem; border-top:1px solid rgba(62,127,176,0.18); }
.chip{
  font-family:var(--font-body); font-size:0.82rem; color:var(--stone);
  background:transparent; border:1px solid rgba(62,127,176,0.4);
  padding:0.5rem 0.95rem; border-radius:999px; cursor:pointer;
  transition:background 0.2s, border-color 0.2s, transform 0.15s;
}
.chip:hover{background:rgba(62,127,176,0.14); border-color:var(--lake-deep); transform:translateY(-1px);}
.chip:focus-visible{outline:2px solid var(--lake-deep); outline-offset:2px;}

/* input row */
form.msgform{ display:flex; gap:0.6rem; padding:1rem 1.1rem 1.2rem; }
input[type="text"], input[type="email"], select, textarea{
  flex:1; font-family:var(--font-body); font-size:0.95rem;
  background:rgba(255,255,255,0.7); color:var(--stone);
  border:1px solid rgba(62,127,176,0.3); border-radius:10px;
  padding:0.75rem 0.95rem;
}
input::placeholder, textarea::placeholder{color:rgba(30,68,104,0.45);}
input:focus-visible, select:focus-visible, textarea:focus-visible{outline:2px solid var(--lake-deep); outline-offset:1px;}
button.send{
  font-family:var(--font-mono); font-size:0.78rem; letter-spacing:0.06em; text-transform:uppercase;
  background:var(--lake-deep); color:#fff; border:none; border-radius:10px;
  padding:0 1.15rem; cursor:pointer; font-weight:600;
  transition:filter 0.2s, transform 0.15s;
}
button.send:hover{filter:brightness(1.08);}
button.send:active{transform:scale(0.97);}
button.send:disabled{opacity:0.5; cursor:default;}
button.send:focus-visible{outline:2px solid var(--stone); outline-offset:2px;}

/* ---------- Booking card ---------- */
.booking{
  align-self:stretch; background:rgba(255,255,255,0.6); border:1px solid rgba(62,127,176,0.3);
  border-radius:12px; padding:1rem; display:flex; flex-direction:column; gap:0.65rem;
  animation:rise 0.35s ease both; color:var(--stone);
}
.booking h3{ font-family:var(--font-display); font-weight:500; font-style:italic; font-size:1.1rem; color:var(--lake-deep); }
.booking .row{ display:flex; gap:0.6rem; flex-wrap:wrap; }
.booking .row > *{ flex:1; min-width:140px; }
.booking label{ font-family:var(--font-mono); font-size:0.65rem; text-transform:uppercase; letter-spacing:0.08em; opacity:0.65; display:block; margin-bottom:0.3rem; }
.booking .actions{ display:flex; justify-content:flex-end; gap:0.6rem; margin-top:0.3rem; }
.booking .actions button{ font-family:var(--font-mono); font-size:0.75rem; text-transform:uppercase; border-radius:8px; padding:0.55rem 1rem; cursor:pointer; border:none; }
.booking .actions .primary{ background:var(--lake-deep); color:#fff; font-weight:700; }
.booking .actions .ghost{ background:transparent; color:var(--stone); border:1px solid rgba(30,68,104,0.35); }
.booking .status{ font-size:0.8rem; opacity:0.85; }
.booking .status.ok{ color:#2f9e6f; }
.booking .status.err{ color:#c0504d; }

footer{
  text-align:center; padding:1rem 1rem 1.6rem; position:relative; z-index:1;
  font-family:var(--font-mono); font-size:0.7rem; letter-spacing:0.06em; color:rgba(30,68,104,0.6);
}
footer a{color:var(--lake-deep); text-decoration:none; border-bottom:1px solid rgba(62,127,176,0.5);}

@media (max-width:480px){
  .thread{max-height:46vh;}
  .msg{max-width:90%;}
  .booking .row > *{min-width:100%;}
}