:root {
  --bg: #f6f1e9; --surface: #fffdf9; --surface-2: #f0e9dd; --line: #e2d8c7;
  --ink: #1d2b30; --muted: #6b7478; --primary: #0f4c5c; --primary-ink: #fff; --primary-soft: #dcebee;
  --gold: #c8963e; --gold-soft: #f6e9cf; --red: #b3412e; --red-soft: #f8e1dc; --amber: #a86b06; --amber-soft: #fbefd5;
  --green: #2f7a4f; --green-soft: #dff0e5; --radius: 14px; --shadow: 0 1px 2px rgba(29,43,48,.06), 0 6px 20px rgba(29,43,48,.06);
  --font: 'IBM Plex Sans Arabic', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --display: 'Fraunces', 'IBM Plex Sans Arabic', serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11181b; --surface: #182226; --surface-2: #1f2c31; --line: #2c3b41; --ink: #e9eef0; --muted: #98a6ab;
    --primary: #5fb3c4; --primary-ink: #0d1a1e; --primary-soft: #1e3a42; --gold: #e2b35e; --gold-soft: #3b3020;
    --red: #ef8a76; --red-soft: #3d221d; --amber: #f0b54a; --amber-soft: #3a2d14; --green: #79c99a; --green-soft: #1b3326;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 20px rgba(0,0,0,.25);
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 16px; line-height: 1.55; -webkit-text-size-adjust: 100%; }
body { min-height: 100vh; }
a { color: var(--primary); }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .5rem; }
h1 { font-size: 1.6rem; } h2 { font-size: 1.2rem; } h3 { font-size: 1.02rem; }
.muted { color: var(--muted); } .small { font-size: .86rem; } .tiny { font-size: .76rem; }
.row { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.spread { justify-content: space-between; }
.grow { flex: 1; }
.stack > * + * { margin-top: .75rem; }
.hidden { display: none !important; }

/* top bar */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top .inner { max-width: 1100px; margin: 0 auto; padding: .6rem 1rem; display: flex; align-items: center; gap: .75rem; }
.brand { display: flex; align-items: center; gap: .5rem; font-family: var(--display); font-size: 1.35rem; font-weight: 600; color: var(--primary); text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.nav { display: flex; gap: .25rem; margin-inline-start: auto; }
.nav a, .nav button { padding: .4rem .7rem; border-radius: 999px; text-decoration: none; color: var(--ink); background: none; border: 0; cursor: pointer; font-size: .95rem; }
.nav a.on { background: var(--primary); color: var(--primary-ink); }
.nav .ghost { color: var(--muted); }
main { max-width: 1100px; margin: 0 auto; padding: 1rem 1rem 6rem; }

/* cards & controls */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow); }
.card + .card { margin-top: .9rem; }
.grid { display: grid; gap: .9rem; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.btn { display: inline-flex; align-items: center; gap: .4rem; padding: .55rem 1rem; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; text-decoration: none; color: var(--ink); white-space: nowrap; }
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); font-weight: 600; }
.btn.gold { background: var(--gold); border-color: var(--gold); color: #1b1408; font-weight: 600; }
.btn.danger { color: var(--red); }
.btn.sm { padding: .3rem .6rem; font-size: .85rem; border-radius: 8px; }
.btn:disabled { opacity: .5; cursor: default; }
label.f { display: flex; flex-direction: column; gap: .25rem; font-size: .85rem; color: var(--muted); }
input, select, textarea { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: .5rem .65rem; min-width: 0; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary-soft); border-color: var(--primary); }
textarea { resize: vertical; min-height: 70px; }
.form { display: grid; gap: .7rem; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
.form .wide { grid-column: 1 / -1; }
input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--primary); }
.ltr { direction: ltr; unicode-bidi: isolate; }

/* pills / badges */
.pill { display: inline-flex; align-items: center; gap: .3rem; padding: .1rem .55rem; border-radius: 999px; font-size: .78rem; background: var(--surface-2); color: var(--muted); white-space: nowrap; }
.pill.red { background: var(--red-soft); color: var(--red); } .pill.amber { background: var(--amber-soft); color: var(--amber); }
.pill.green { background: var(--green-soft); color: var(--green); } .pill.blue { background: var(--primary-soft); color: var(--primary); }
.pill.gold { background: var(--gold-soft); color: var(--gold); }

/* trips list */
.trip-card { cursor: pointer; display: flex; flex-direction: column; gap: .35rem; transition: transform .15s; }
.trip-card:hover { transform: translateY(-2px); border-color: var(--primary); }
.trip-card .dest { font-family: var(--display); font-size: 1.3rem; }
.hero { display: flex; align-items: end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.hero h1 { font-family: var(--display); font-size: 1.9rem; }

/* tabs */
.tabs { display: flex; gap: .3rem; overflow-x: auto; margin: 0 -1rem 1rem; padding: 0 1rem .2rem; scrollbar-width: none; }
.tabs button { flex: none; padding: .45rem .85rem; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font-size: .92rem; }
.tabs button.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* tables */
.table-wrap { overflow-x: auto; margin: 0 -1rem; padding: 0 1rem; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: .5rem .45rem; border-bottom: 1px solid var(--line); text-align: start; vertical-align: middle; }
th { font-weight: 600; color: var(--muted); font-size: .8rem; white-space: nowrap; }
td input, td select { padding: .3rem .4rem; font-size: .85rem; border-radius: 8px; }
td:first-child { min-width: 9.5rem; }
td input.code { width: 5.2rem; text-transform: uppercase; }
td input[type=date] { width: 9.5rem; }

/* warnings */
.warn { display: flex; gap: .6rem; align-items: flex-start; padding: .55rem .7rem; border-radius: 10px; background: var(--surface-2); font-size: .9rem; }
.warn.red { background: var(--red-soft); } .warn.amber { background: var(--amber-soft); } .warn.info { background: var(--primary-soft); }
.warn b { white-space: nowrap; }

/* flight groups */
.group { border: 1px solid var(--line); border-radius: 12px; padding: .7rem .8rem; background: var(--surface); }
.group .route { font-weight: 700; font-size: 1.05rem; direction: ltr; unicode-bidi: isolate; }
.chips { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .4rem; }
.chip { padding: .15rem .55rem; border-radius: 999px; background: var(--surface-2); font-size: .8rem; border: 1px solid transparent; cursor: default; }
.chip.sel { border-color: var(--primary); background: var(--primary-soft); }
button.chip { cursor: pointer; }

/* miles calendar */
.cal { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal .dow { font-size: .72rem; color: var(--muted); text-align: center; }
.cal .day { min-height: 74px; border-radius: 8px; background: var(--surface-2); padding: 4px; font-size: .7rem; display: flex; flex-direction: column; gap: 2px; direction: ltr; }
.cal .day.empty { background: transparent; }
.cal .day .n { font-weight: 700; font-size: .78rem; color: var(--muted); }
.cal .day.has { background: var(--surface); border: 1px solid var(--line); }
.cal .tag { border-radius: 4px; padding: 0 3px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cal .tag.F { background: var(--gold-soft); color: var(--gold); }
.cal .tag.J { background: var(--primary-soft); color: var(--primary); }
.cal .tag.Y { background: var(--green-soft); color: var(--green); }
.month-title { font-weight: 700; margin: .8rem 0 .3rem; }
.legend { display: flex; gap: .6rem; flex-wrap: wrap; font-size: .8rem; }

/* hotels */
.hotel { display: grid; grid-template-columns: 96px 1fr; gap: .8rem; align-items: start; }
.hotel img { width: 96px; height: 96px; border-radius: 10px; object-fit: cover; background: var(--surface-2); }
.price { font-weight: 700; font-size: 1.1rem; direction: ltr; unicode-bidi: isolate; }
.room-line { display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; }
.room-line input { width: 4.5rem; }

/* rooms */
.room-card { border: 2px dashed var(--line); border-radius: 12px; padding: .7rem; min-height: 90px; cursor: pointer; }
.room-card.target { border-color: var(--primary); background: var(--primary-soft); }

/* plan */
.item { display: grid; grid-template-columns: auto 1fr auto; gap: .7rem; align-items: start; padding: .75rem 0; border-bottom: 1px solid var(--line); }
.item:last-child { border-bottom: 0; }
.item .t { font-weight: 600; }
.item details { font-size: .85rem; color: var(--muted); }
.item pre { white-space: pre-wrap; font-family: inherit; margin: .3rem 0 0; }
.totals { position: sticky; bottom: 0; background: var(--surface); border-top: 1px solid var(--line); padding: .8rem 1rem; margin: 0 -1rem -1rem; border-radius: 0 0 var(--radius) var(--radius); }

/* chat */
.chat { display: flex; flex-direction: column; height: calc(100dvh - 300px); min-height: 440px; }
.chat.full { height: calc(100dvh - 110px); }
.msgs { flex: 1; overflow-y: auto; padding: .4rem .2rem 1rem; display: flex; flex-direction: column; gap: .7rem; }
.msg { max-width: 88%; padding: .65rem .85rem; border-radius: 16px; white-space: normal; overflow-wrap: anywhere; }
.msg.user { align-self: flex-end; background: var(--primary); color: var(--primary-ink); border-end-end-radius: 4px; }
.msg.assistant { align-self: flex-start; background: var(--surface); border: 1px solid var(--line); border-end-start-radius: 4px; }
.msg p { margin: 0 0 .5rem; } .msg p:last-child { margin: 0; }
.msg ul, .msg ol { margin: .2rem 0 .5rem; padding-inline-start: 1.2rem; }
.msg code { background: var(--surface-2); padding: 0 .25rem; border-radius: 4px; }
.msg table { font-size: .82rem; margin: .4rem 0; }
.toolrow { display: flex; flex-wrap: wrap; gap: .3rem; margin-bottom: .4rem; }
.composer { display: flex; gap: .5rem; align-items: flex-end; padding-top: .6rem; border-top: 1px solid var(--line); }
.composer textarea { flex: 1; min-height: 46px; max-height: 160px; border-radius: 14px; }
.suggest { display: flex; flex-wrap: wrap; gap: .4rem; margin: .4rem 0; }
.suggest button { border: 1px solid var(--line); background: var(--surface); border-radius: 999px; padding: .35rem .75rem; font-size: .85rem; cursor: pointer; }
.dots::after { content: '…'; animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: .2; } }
.fab { position: fixed; inset-inline-end: 18px; bottom: 18px; z-index: 30; border-radius: 999px; padding: .8rem 1.1rem; box-shadow: var(--shadow); }

/* modal */
.modal-bg { position: fixed; inset: 0; background: rgba(10,20,24,.45); z-index: 50; display: flex; align-items: flex-end; justify-content: center; }
.modal { background: var(--surface); width: min(720px, 100%); max-height: 92vh; overflow-y: auto; border-radius: 18px 18px 0 0; padding: 1.1rem; }
@media (min-width: 720px) { .modal-bg { align-items: center; } .modal { border-radius: 18px; } }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 1rem; background: radial-gradient(1200px 500px at 50% -10%, var(--primary-soft), transparent), var(--bg); }
.login .card { width: min(380px, 100%); padding: 1.6rem; }
.login h1 { font-family: var(--display); font-size: 2.2rem; color: var(--primary); text-align: center; margin: .4rem 0 0; }

#toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: .5rem 1rem; border-radius: 999px; opacity: 0; transition: opacity .2s; pointer-events: none; z-index: 60; font-size: .9rem; }
#toast.show { opacity: 1; }

@media (max-width: 640px) {
  .top .inner { padding: .5rem .75rem; }
  .nav a, .nav button { padding: .35rem .55rem; font-size: .88rem; }
  .brand span { display: none; }
  .hero h1 { font-size: 1.5rem; }
  .cal .day { min-height: 60px; font-size: .62rem; }
}