:root{
  --teal:#0F766E; --teal-dark:#0B5952; --coral:#F97362; --sun:#F5B54A;
  --ink:#1C2B2B; --muted:#5F7370; --bg:#FAF7F2;
  --glass:rgba(255,255,255,.55); --glass-strong:rgba(255,255,255,.72);
  --glass-edge:rgba(255,255,255,.65); --line:rgba(28,43,43,.10);
  --ok:#177E4D; --bad:#C0392B;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{min-height:100dvh;display:flex;flex-direction:column;background:var(--bg);color:var(--ink);
  font:16px/1.55 system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;}
/* Soft color glows behind the glass — same palette, fixed so blur has depth */
body::before{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;background:
  radial-gradient(620px 420px at 88% -60px, rgba(249,115,98,.20), transparent 62%),
  radial-gradient(720px 540px at -120px 34%, rgba(15,118,110,.16), transparent 62%),
  radial-gradient(540px 420px at 108% 78%, rgba(245,181,74,.22), transparent 62%),
  var(--bg);}
a{color:var(--teal)}

/* Nav — floating glass pill */
.nav{position:sticky;top:10px;z-index:1200;display:flex;align-items:center;justify-content:space-between;
  width:calc(100% - 24px);max-width:860px;margin:10px auto 0;padding:10px 16px;
  background:var(--glass);backdrop-filter:blur(18px) saturate(1.5);-webkit-backdrop-filter:blur(18px) saturate(1.5);
  border:1px solid var(--glass-edge);border-radius:18px;box-shadow:0 8px 32px rgba(28,43,43,.10);}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:1.1rem;color:var(--ink);text-decoration:none;letter-spacing:-.01em;}
.brand svg{color:var(--teal)}
.brand span{color:var(--teal)}
.nav-links{display:flex;align-items:center;gap:16px;}
.nav-links a{font-weight:600;font-size:.92rem;text-decoration:none;color:var(--ink);}
.btn-sm{background:var(--teal);color:#fff !important;padding:8px 14px;border-radius:10px;box-shadow:0 4px 14px rgba(15,118,110,.28);}
.btn-ghost{font:inherit;font-weight:600;font-size:.92rem;background:none;border:0;color:var(--muted);cursor:pointer;padding:0;}
.m0{margin:0}

/* Layout */
.main{flex:1;width:100%;max-width:860px;margin:0 auto;padding:22px 16px 40px;}
.foot{text-align:center;color:var(--muted);font-size:.78rem;padding:18px;border-top:1px solid var(--line);}

h1{font-size:1.65rem;font-weight:800;letter-spacing:-.02em;margin:0 0 6px;}
h2{font-size:1.1rem;font-weight:800;margin:0 0 12px;}
.lede{color:var(--muted);margin:0 0 20px;font-size:.95rem;}
.eyebrow{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--coral);font-weight:800;margin:0 0 8px;}

/* Cards & forms — frosted glass */
.card{background:var(--glass);backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);
  border:1px solid var(--glass-edge);border-radius:16px;padding:18px;box-shadow:0 8px 24px rgba(28,43,43,.08);}
label{font-weight:600;font-size:.85rem;display:block;margin-bottom:5px;color:var(--ink);}
input,select,textarea{width:100%;font:inherit;font-size:16px;color:var(--ink);background:var(--glass-strong);
  border:1.5px solid var(--line);border-radius:10px;padding:11px 12px;}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--teal);background:#fff;}
.btn{font:inherit;font-weight:700;font-size:1rem;cursor:pointer;color:#fff;background:var(--teal);
  border:0;padding:12px 20px;border-radius:12px;box-shadow:0 6px 18px rgba(15,118,110,.30);}
.btn:active{transform:scale(.98)}
.btn-coral{background:var(--coral);box-shadow:0 6px 18px rgba(249,115,98,.32);}
.btn-outline{background:var(--glass-strong);color:var(--teal);border:1.5px solid var(--teal);box-shadow:none;}
.mini{font:inherit;font-weight:700;font-size:.78rem;cursor:pointer;color:var(--ink);background:var(--glass-strong);
  border:1px solid var(--glass-edge);border-radius:8px;padding:6px 10px;text-decoration:none;display:inline-block;
  box-shadow:0 2px 8px rgba(28,43,43,.07);}
.mini:active{transform:scale(.97)}
.alert{border-radius:12px;padding:11px 14px;font-size:.9rem;margin-bottom:16px;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);}
.alert-ok{background:rgba(231,244,236,.75);border:1px solid rgba(23,126,77,.25);color:#14532D;}
.alert-error{background:rgba(251,234,232,.75);border:1px solid rgba(192,57,43,.25);color:#7F1D1D;}
.hint{color:var(--muted);font-size:.8rem;}

/* Trip cards */
.trip-list{display:flex;flex-direction:column;gap:12px;margin-top:16px;}
.trip-card{display:block;background:var(--glass);backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);
  border:1px solid var(--glass-edge);border-radius:16px;padding:16px 18px;
  text-decoration:none;color:var(--ink);box-shadow:0 8px 24px rgba(28,43,43,.08);}
.trip-card:active{transform:scale(.99)}
.trip-card .t{font-weight:800;font-size:1.05rem;}
.trip-card .d{color:var(--muted);font-size:.85rem;margin-top:3px;display:flex;gap:10px;flex-wrap:wrap;}
.pill{display:inline-block;font-size:.7rem;font-weight:800;padding:3px 10px;border-radius:999px;letter-spacing:.03em;}
.pill.planning{background:rgba(245,181,74,.25);color:#8a5a00;}
.pill.active{background:rgba(15,118,110,.15);color:var(--teal-dark);}
.pill.archived{background:rgba(28,43,43,.08);color:var(--muted);}

/* Budget sheet */
.sheet-wrap{background:var(--glass);backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);
  border:1px solid var(--glass-edge);border-radius:16px;overflow-x:auto;box-shadow:0 8px 24px rgba(28,43,43,.08);}
.sheet{width:100%;border-collapse:separate;border-spacing:0;font-size:.85rem;min-width:760px;}
.sheet th{position:sticky;top:0;background:rgba(15,118,110,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  color:#fff;text-align:left;font-size:.68rem;
  letter-spacing:.08em;text-transform:uppercase;font-weight:700;padding:10px 10px;white-space:nowrap;}
.sheet td{padding:6px 8px;border-bottom:1px solid rgba(28,43,43,.07);vertical-align:middle;}
.sheet tr:last-child td{border-bottom:0;}
.sheet input,.sheet select{border:1.5px solid transparent;background:transparent;padding:8px 8px;border-radius:8px;font-size:.88rem;}
.sheet input:hover,.sheet select:hover{border-color:var(--line);background:rgba(255,255,255,.5);}
.sheet input:focus,.sheet select:focus{border-color:var(--teal);background:#fff;}
.sheet .num{text-align:right;font-variant-numeric:tabular-nums;}
.sheet input.num{max-width:110px;}
.auto-cell{color:var(--muted);}
.auto-cell .autotag{font-size:.62rem;letter-spacing:.05em;color:var(--coral);font-weight:800;}
.sheet .del{color:var(--bad);background:none;border:0;font-size:1rem;cursor:pointer;padding:4px 6px;}
tr.total-row td{font-weight:800;background:rgba(245,181,74,.18);border-top:2px solid rgba(28,43,43,.12);}
.cat-chips{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0;}
.chip{background:var(--glass-strong);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--glass-edge);border-radius:999px;padding:6px 12px;font-size:.78rem;font-weight:700;
  box-shadow:0 2px 8px rgba(28,43,43,.06);}
.chip b{color:var(--teal)}

/* Pax control */
.paxbar{display:flex;align-items:center;gap:14px;background:var(--glass);backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);
  border:1px solid var(--glass-edge);
  border-radius:14px;padding:12px 16px;margin-bottom:14px;flex-wrap:wrap;box-shadow:0 8px 24px rgba(28,43,43,.08);}
.paxbar .pn{display:flex;align-items:center;gap:10px;}
.paxbar button{width:38px;height:38px;border-radius:10px;border:1.5px solid var(--teal);background:var(--glass-strong);
  color:var(--teal);font-size:1.2rem;font-weight:800;cursor:pointer;}
.paxbar .pv{font-size:1.3rem;font-weight:800;min-width:34px;text-align:center;}

/* Detail grids */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.stack{display:flex;flex-direction:column;gap:12px;}
.rowflex{display:flex;gap:10px;align-items:end;flex-wrap:wrap;}
.section{margin-top:26px;}
.tabbar{display:flex;gap:6px;margin:18px 0 14px;background:rgba(255,255,255,.40);
  backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4);
  border:1px solid var(--glass-edge);border-radius:12px;padding:4px;width:fit-content;box-shadow:0 4px 16px rgba(28,43,43,.07);}
.tabbar a{flex:0 0 auto;text-decoration:none;font-weight:700;font-size:.85rem;color:var(--muted);padding:8px 16px;border-radius:9px;}
.tabbar a.on{background:rgba(255,255,255,.92);color:var(--ink);box-shadow:0 1px 3px rgba(28,43,43,.12);}

/* Landing */
.hero{padding:48px 0 30px;text-align:center;}
.hero h1{font-size:2rem;}
.hero p{max-width:520px;margin:10px auto 24px;color:var(--muted);}

@media(max-width:560px){
  .grid2{grid-template-columns:1fr;}
  .main{padding:16px 12px 32px;}
  h1{font-size:1.4rem;}
}

/* ── A11y & interaction polish (ui-ux-pro-max pass) ─────────────────────
   Focus rings, smooth 150-250ms feedback, card lift, touch targets,
   reduced-motion. Palette untouched. */
:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; border-radius: 6px; }
.btn:focus-visible, .btn-coral:focus-visible { outline-color: var(--coral); }
input:focus, select:focus, textarea:focus { box-shadow: 0 0 0 3px rgba(15,118,110,.16); }
a, button, .btn, .mini, .chip, .trip-card, .dest-card, .tabbar a, .paxbar button, input, select, textarea {
  transition: background-color .2s ease, border-color .2s ease, color .2s ease,
    box-shadow .2s ease, transform .15s ease, filter .2s ease;
}
.btn:hover { filter: brightness(1.06); transform: translateY(-1px); }
.mini:hover { border-color: var(--teal); }
.trip-card:hover, .dest-card:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(28,43,43,.13); }
.tabbar a:hover { color: var(--ink); }
button { cursor: pointer; }
::selection { background: rgba(15,118,110,.22); }
@media (pointer: coarse) {
  .mini { min-height: 42px; padding: 10px 13px; }
  .tabbar a { min-height: 44px; display: inline-flex; align-items: center; }
  .paxbar button { width: 44px; height: 44px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}