/* ============ Vietnam Trip site — shared styles ============ */
:root{
  --bg:#0e1310; --card:#181f19; --card2:#1f2820; --card3:#252f26;
  --ink:#e9efe7; --ink2:#c3cdc0; --muted:#8e9a8b; --line:#2b352a;
  --green:#7fb069; --gold:#e0b354; --red:#e0705a; --amber:#d99a3f; --blue:#77a6bd;
  --sel:rgba(127,176,105,.13); --selline:#7fb069;
  --r:14px; --shadow:0 1px 2px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.18);
}
@media (prefers-color-scheme: light){
  :root{--bg:#f5f4ee;--card:#fff;--card2:#eef1e9;--card3:#e4e9df;--ink:#1f271e;--ink2:#3c4739;--muted:#6b756a;--line:#dde1d6;--blue:#37687f;
    --sel:rgba(127,176,105,.16);--shadow:0 1px 2px rgba(0,0,0,.05), 0 4px 16px rgba(0,0,0,.06);}
}
:root[data-theme="dark"]{--bg:#0e1310;--card:#181f19;--card2:#1f2820;--card3:#252f26;--ink:#e9efe7;--ink2:#c3cdc0;--muted:#8e9a8b;--line:#2b352a;--blue:#77a6bd;--sel:rgba(127,176,105,.13)}
:root[data-theme="light"]{--bg:#f5f4ee;--card:#fff;--card2:#eef1e9;--card3:#e4e9df;--ink:#1f271e;--ink2:#3c4739;--muted:#6b756a;--line:#dde1d6;--blue:#37687f;--sel:rgba(127,176,105,.16)}

*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);
     line-height:1.58;padding-bottom:60px;-webkit-font-smoothing:antialiased}
.wrap{max-width:1120px;margin:0 auto;padding:0 18px}
.narrow{max-width:860px}
a{color:var(--blue);text-decoration:none} a:hover{text-decoration:underline}
.muted{color:var(--muted)} .small{font-size:.87rem} .tiny{font-size:.78rem}
b,strong{font-weight:650}

/* ---- nav ---- */
.nav{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.navin{max-width:1120px;margin:0 auto;padding:0 18px;display:flex;align-items:center;gap:4px;flex-wrap:wrap;min-height:52px}
.brand{font-weight:700;letter-spacing:-.02em;margin-right:14px;color:var(--ink);white-space:nowrap}
.brand:hover{text-decoration:none}
.nav a.n{padding:7px 12px;border-radius:8px;font-size:.9rem;font-weight:550;color:var(--ink2)}
.nav a.n:hover{background:var(--card3);text-decoration:none}
.nav a.n.on{background:var(--sel);color:var(--ink);font-weight:650}

/* ---- header ---- */
header.pg{background:linear-gradient(165deg,#17301f 0%,var(--bg) 78%);border-bottom:1px solid var(--line);padding:28px 0 22px}
@media (prefers-color-scheme: light){header.pg{background:linear-gradient(165deg,#dbe8d7 0%,var(--bg) 78%)}}
:root[data-theme="light"] header.pg{background:linear-gradient(165deg,#dbe8d7 0%,var(--bg) 78%)}
h1{font-size:1.68rem;letter-spacing:-.02em;line-height:1.2}
.sub{color:var(--ink2);margin-top:5px;font-size:.98rem}

h2{font-size:1.18rem;margin:30px 0 4px;letter-spacing:-.015em}
h2 .h2sub{display:block;font-size:.84rem;font-weight:400;color:var(--muted);margin-top:3px;letter-spacing:0}
h3{font-size:1rem;margin-bottom:5px}
p+p{margin-top:8px}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;margin-bottom:11px;box-shadow:var(--shadow)}
.warn{border-left:4px solid var(--red)} .info{border-left:4px solid var(--blue)}
.win{border-left:4px solid var(--green)} .note{border-left:4px solid var(--amber)}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:11px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:11px}

/* ---- tables ---- */
.tablebox{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:.88rem}
th,td{text-align:left;padding:9px 11px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600;font-size:.71rem;text-transform:uppercase;letter-spacing:.07em;white-space:nowrap}
tr:last-child td{border-bottom:none}
.num{text-align:right;white-space:nowrap}
.up{color:var(--red);font-weight:650} .down{color:var(--green);font-weight:650} .flat{color:var(--muted)}
tr.best{background:var(--sel)} tr.best td{font-weight:600}

/* ---- badges & buttons ---- */
.badge{display:inline-block;font-size:.66rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;border-radius:5px;padding:2px 7px;vertical-align:middle}
.b-rec{background:var(--green);color:#0d160b} .b-warn{background:var(--amber);color:#1c1204}
.b-no{background:var(--red);color:#1a0b07} .b-fix{background:var(--card3);color:var(--muted);border:1px solid var(--line)}

.btn{display:inline-block;background:var(--green);color:#0d160b;font-weight:650;font-size:.88rem;
     padding:9px 16px;border-radius:9px;border:none;cursor:pointer;text-decoration:none;font-family:inherit}
.btn:hover{filter:brightness(1.09);text-decoration:none}
.btn.sec{background:var(--card3);color:var(--ink);border:1px solid var(--line)}
.btn.wide{width:100%;text-align:center}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ---- day rows ---- */
.day{display:flex;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}
.day:last-child{border-bottom:none}
.when{flex:0 0 62px;color:var(--gold);font-weight:700;font-size:.85rem;padding-top:1px}
.what b{display:block;margin-bottom:2px}
.what span{font-size:.89rem;color:var(--ink2)}

/* ---- food entries ---- */
.eat{border-bottom:1px solid var(--line);padding:13px 0}
.eat:last-child{border-bottom:none}
.eat .nm{font-weight:650}
.eat .ad{font-size:.83rem;color:var(--muted);margin-top:1px}
.eat .dt{font-size:.88rem;color:var(--ink2);margin-top:5px}
.pill{display:inline-block;background:var(--card3);border:1px solid var(--line);border-radius:99px;
      padding:2px 9px;font-size:.75rem;color:var(--ink2);margin-right:5px;margin-top:5px}
.pill.gold{border-color:var(--gold);color:var(--gold)}

/* ---- details ---- */
details{background:var(--card);border:1px solid var(--line);border-radius:var(--r);margin-bottom:10px;box-shadow:var(--shadow);overflow:hidden}
summary{padding:14px 18px;cursor:pointer;font-weight:640;list-style:none;display:flex;justify-content:space-between;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:'▾';color:var(--muted)} details[open] summary::after{content:'▴'}
details[open] summary{border-bottom:1px solid var(--line)}
.dbody{padding:15px 18px}

/* ---- feedback ---- */
.fb{background:var(--card);border:2px solid var(--selline);border-radius:var(--r);padding:18px 20px;margin-top:26px;box-shadow:var(--shadow)}
.fb h3{font-size:1.06rem;margin-bottom:3px}
.fbrow{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;margin-top:12px}
.fld label{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600;margin-bottom:4px}
.fld input,.fld select,.fld textarea{width:100%;background:var(--bg);color:var(--ink);border:1px solid var(--line);
  border-radius:9px;padding:9px 11px;font-family:inherit;font-size:.92rem;line-height:1.45}
.fld textarea{min-height:96px;resize:vertical}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:none;border-color:var(--selline)}
.fbactions{display:flex;gap:9px;flex-wrap:wrap;margin-top:13px;align-items:center}
.hp{position:absolute;left:-9999px;opacity:0;height:0;width:0}

#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(90px);background:var(--green);color:#0d160b;
       font-weight:650;padding:11px 22px;border-radius:10px;box-shadow:0 6px 24px rgba(0,0,0,.3);transition:transform .3s;z-index:99;font-size:.9rem}
#toast.show{transform:translateX(-50%) translateY(0)}
#toast.err{background:var(--red);color:#fff}

footer{margin-top:36px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:.78rem;text-align:center}

@media (max-width:560px){
  h1{font-size:1.34rem}
  .navin{min-height:46px}
  .nav a.n{padding:6px 9px;font-size:.84rem}
  .brand{margin-right:6px;font-size:.94rem}
}