/* ============================================================
   TravelBook Pro - design system
   Light and dark are both selected, not flipped. Chart colours
   come from the validated palette (see templates/charts/).
   ============================================================ */

:root{
  color-scheme: light;

  /* planes */
  --page:        #f9f9f7;
  --surface:     #fcfcfb;
  --surface-2:   #f3f3f0;
  --surface-3:   #ecebe7;

  /* ink */
  --ink:         #0b0b0b;
  --ink-2:       #52514e;
  --ink-muted:   #898781;

  /* lines */
  --line:        #e1e0d9;
  --line-strong: #c3c2b7;
  --ring:        rgba(11,11,11,.10);

  /* brand */
  --accent:      #2a78d6;
  --accent-ink:  #1c5cab;
  --accent-soft: #e8f1fd;
  --on-accent:   #ffffff;

  /* status */
  --good:        #0ca30c;
  --good-ink:    #006300;
  --good-soft:   #e3f7e3;
  --warn:        #fab219;
  --warn-ink:    #8a5d00;
  --warn-soft:   #fdf3dc;
  --serious:     #ec835a;
  --critical:    #d03b3b;
  --crit-ink:    #a02020;
  --crit-soft:   #fbe6e6;

  /* rails */
  --nav-bg:      #14171c;
  --nav-ink:     #a8b0bd;
  --nav-ink-hi:  #ffffff;
  --nav-hover:   rgba(255,255,255,.07);
  --nav-active:  rgba(58,135,229,.18);

  --r-sm: 7px; --r: 10px; --r-lg: 14px;
  --shadow: 0 1px 2px rgba(11,11,11,.05), 0 1px 3px rgba(11,11,11,.04);
  --shadow-lg: 0 4px 16px rgba(11,11,11,.08), 0 1px 3px rgba(11,11,11,.05);
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* chart palette - validated (see core/charts.py) */
  --s-cost:   #2a78d6;
  --s-profit: #1baf7a;
  --age-1: #86b6ef; --age-2: #5598e7; --age-3: #2a78d6;
  --age-4: #1c5cab; --age-5: #104281;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme: dark;
    --page:#0d0d0d; --surface:#1a1a19; --surface-2:#232322; --surface-3:#2c2c2a;
    --ink:#ffffff; --ink-2:#c3c2b7; --ink-muted:#898781;
    --line:#2c2c2a; --line-strong:#383835; --ring:rgba(255,255,255,.10);
    --accent:#3987e5; --accent-ink:#86b6ef; --accent-soft:#16283d; --on-accent:#0d0d0d;
    --good:#0ca30c; --good-ink:#4ec44e; --good-soft:#132a13;
    --warn:#fab219; --warn-ink:#f0b840; --warn-soft:#2e2510;
    --critical:#d03b3b; --crit-ink:#e87878; --crit-soft:#2e1414;
    --nav-bg:#121211; --nav-ink:#9b9a92; --nav-ink-hi:#ffffff;
    --nav-hover:rgba(255,255,255,.06); --nav-active:rgba(57,135,229,.20);
    --shadow: 0 1px 2px rgba(0,0,0,.4);
    --shadow-lg: 0 6px 22px rgba(0,0,0,.5);
    --s-cost:#3987e5; --s-profit:#199e70;
    --age-1:#cde2fb; --age-2:#9ec5f4; --age-3:#6da7ec;
    --age-4:#3987e5; --age-5:#184f95;
  }
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --page:#0d0d0d; --surface:#1a1a19; --surface-2:#232322; --surface-3:#2c2c2a;
  --ink:#ffffff; --ink-2:#c3c2b7; --ink-muted:#898781;
  --line:#2c2c2a; --line-strong:#383835; --ring:rgba(255,255,255,.10);
  --accent:#3987e5; --accent-ink:#86b6ef; --accent-soft:#16283d; --on-accent:#0d0d0d;
  --good:#0ca30c; --good-ink:#4ec44e; --good-soft:#132a13;
  --warn:#fab219; --warn-ink:#f0b840; --warn-soft:#2e2510;
  --critical:#d03b3b; --crit-ink:#e87878; --crit-soft:#2e1414;
  --nav-bg:#121211; --nav-ink:#9b9a92; --nav-ink-hi:#ffffff;
  --nav-hover:rgba(255,255,255,.06); --nav-active:rgba(57,135,229,.20);
  --shadow: 0 1px 2px rgba(0,0,0,.4);
  --shadow-lg: 0 6px 22px rgba(0,0,0,.5);
  --s-cost:#3987e5; --s-profit:#199e70;
  --age-1:#cde2fb; --age-2:#9ec5f4; --age-3:#6da7ec;
  --age-4:#3987e5; --age-5:#184f95;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--page); color:var(--ink);
  font:14px/1.55 var(--sans);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent-ink); text-decoration:none}
a:hover{text-decoration:underline}
svg{display:block}

/* ---------------------------------------------------- layout */
.shell{display:flex; min-height:100vh}

.side{
  width:236px; flex:0 0 236px; background:var(--nav-bg); color:var(--nav-ink);
  display:flex; flex-direction:column; position:sticky; top:0; height:100vh;
  overflow-y:auto; scrollbar-width:thin;
}
.brand{
  display:flex; align-items:center; gap:10px; padding:16px 18px 15px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.brand .mark{
  width:30px; height:30px; border-radius:8px; flex:0 0 30px;
  background:linear-gradient(140deg,#3987e5,#1baf7a);
  display:grid; place-items:center; color:#fff;
}
.brand b{display:block; color:var(--nav-ink-hi); font-size:14.5px; letter-spacing:.2px}
.brand span{
  display:block; font-size:10.5px; color:#7a828f; letter-spacing:.6px;
  text-transform:uppercase; margin-top:1px;
}
.nav{padding:8px 0 14px; flex:1}
.nav .grp{
  padding:15px 18px 5px; font-size:10px; letter-spacing:1.1px;
  text-transform:uppercase; color:#6b7280; font-weight:600;
}
.nav a{
  display:flex; align-items:center; gap:10px; padding:8px 18px;
  color:var(--nav-ink); font-size:13.5px; border-left:2px solid transparent;
  transition:background .12s, color .12s;
}
.nav a svg{width:16px; height:16px; flex:0 0 16px; opacity:.75}
.nav a:hover{background:var(--nav-hover); color:var(--nav-ink-hi); text-decoration:none}
.nav a:hover svg{opacity:1}
.nav a.on{
  background:var(--nav-active); color:var(--nav-ink-hi);
  border-left-color:var(--accent); font-weight:500;
}
.nav a.on svg{opacity:1; color:var(--accent-ink)}
.side .foot{
  padding:11px 18px; border-top:1px solid rgba(255,255,255,.08);
  display:flex; align-items:center; gap:9px; font-size:12.5px;
}
.side .foot .av{
  width:26px; height:26px; border-radius:50%; flex:0 0 26px;
  background:var(--accent); color:#fff; display:grid; place-items:center;
  font-size:11px; font-weight:600;
}
.side .foot .who{flex:1; min-width:0}
.side .foot .who b{display:block; color:var(--nav-ink-hi); font-weight:500;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.side .foot .who span{font-size:11px; color:#6b7280}
.side .foot a{color:var(--nav-ink); display:grid; place-items:center}
.side .foot a:hover{color:var(--nav-ink-hi)}

.main{flex:1; min-width:0; display:flex; flex-direction:column}
.top{
  background:var(--surface); border-bottom:1px solid var(--line);
  padding:0 24px; min-height:57px; display:flex; align-items:center; gap:14px;
  flex-wrap:wrap; position:sticky; top:0; z-index:20;
}
.top h1{margin:0; font-size:17px; font-weight:600; letter-spacing:-.2px}
.top .sub{font-size:12.5px; color:var(--ink-muted)}
.top .spacer{flex:1}
.wrap{padding:22px 24px 40px; flex:1; max-width:1500px; width:100%}

/* ----------------------------------------------------- cards */
.card{
  background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-lg); margin-bottom:18px; box-shadow:var(--shadow);
  overflow:hidden;
}
.card > h2{
  margin:0; padding:13px 17px; font-size:13px; font-weight:600;
  letter-spacing:.1px; border-bottom:1px solid var(--line);
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
}
.card > h2 .spacer{flex:1}
.card > h2 .hint{font-weight:400; color:var(--ink-muted); font-size:12px}
.card .body{padding:17px}
.grid-2{display:grid; grid-template-columns:repeat(auto-fit,minmax(380px,1fr)); gap:18px}

/* ----------------------------------------------------- tiles */
.tiles{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(192px,1fr));
  gap:14px; margin-bottom:18px;
}
.tile{
  background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-lg); padding:15px 16px 16px; box-shadow:var(--shadow);
  position:relative; overflow:hidden;
}
.tile .k{
  font-size:11px; text-transform:uppercase; letter-spacing:.7px;
  color:var(--ink-muted); font-weight:600; display:flex; align-items:center; gap:6px;
}
.tile .k svg{width:14px; height:14px}
.tile .v{
  font-size:25px; font-weight:600; margin-top:7px; letter-spacing:-.7px;
  line-height:1.15;
}
.tile .v .cur{font-size:14px; font-weight:500; color:var(--ink-muted); margin-right:3px}
.tile .s{font-size:12px; color:var(--ink-muted); margin-top:5px}
.tile.good .v{color:var(--good-ink)}
.tile.warn .v{color:var(--warn-ink)}
.tile.bad  .v{color:var(--crit-ink)}
.tile.brand .v{color:var(--accent-ink)}

/* ---------------------------------------------------- tables */
.scroll{overflow-x:auto; -webkit-overflow-scrolling:touch}
table{width:100%; border-collapse:collapse; font-size:13.5px}
th{
  text-align:left; padding:9px 14px; background:var(--surface-2);
  color:var(--ink-2); font-size:10.5px; text-transform:uppercase;
  letter-spacing:.6px; font-weight:600; border-bottom:1px solid var(--line);
  white-space:nowrap; position:sticky; top:0;
}
td{padding:10px 14px; border-bottom:1px solid var(--line); vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr{transition:background .1s}
tbody tr:hover{background:var(--surface-2)}
tr.total td{
  font-weight:600; background:var(--surface-2);
  border-top:1px solid var(--line-strong); border-bottom:0;
}
tr.sub td{font-weight:600; background:var(--surface-2)}
.num{text-align:right; font-variant-numeric:tabular-nums; white-space:nowrap}
.empty{padding:34px 20px; text-align:center; color:var(--ink-muted)}
.empty svg{width:30px; height:30px; margin:0 auto 10px; opacity:.4}

/* ------------------------------------------------ components */
.badge{
  display:inline-flex; align-items:center; gap:4px; padding:2px 9px;
  border-radius:20px; font-size:11px; font-weight:600; white-space:nowrap;
  background:var(--surface-3); color:var(--ink-2);
}
.badge.ok{background:var(--good-soft); color:var(--good-ink)}
.badge.warn{background:var(--warn-soft); color:var(--warn-ink)}
.badge.bad{background:var(--crit-soft); color:var(--crit-ink)}
.badge.info{background:var(--accent-soft); color:var(--accent-ink)}
.badge .dot{width:6px; height:6px; border-radius:50%; background:currentColor}

.muted{color:var(--ink-muted)}
.small{font-size:12px}
.pos{color:var(--good-ink)}
.neg{color:var(--crit-ink)}

.btn{
  display:inline-flex; align-items:center; gap:6px; padding:7px 13px;
  border-radius:var(--r-sm); border:1px solid var(--line-strong);
  background:var(--surface); color:var(--ink); font-size:13px; font-weight:500;
  cursor:pointer; font-family:inherit; transition:background .12s, border-color .12s;
}
.btn svg{width:15px; height:15px}
.btn:hover{background:var(--surface-2); text-decoration:none}
.btn.primary{background:var(--accent); border-color:var(--accent); color:var(--on-accent)}
.btn.primary:hover{background:var(--accent-ink); border-color:var(--accent-ink)}
.btn.ghost{border-color:transparent; background:transparent; color:var(--ink-2)}
.btn.ghost:hover{background:var(--surface-2); color:var(--ink)}
.btn.icon{padding:7px; border-color:transparent; background:transparent}
.btn.icon:hover{background:var(--surface-2)}

.filters{display:flex; gap:8px; align-items:center; flex-wrap:wrap}
.filters input,.filters select{
  padding:7px 11px; border:1px solid var(--line-strong); border-radius:var(--r-sm);
  font-size:13px; background:var(--surface); color:var(--ink); font-family:inherit;
}
.filters input:focus,.filters select:focus{
  outline:2px solid var(--accent); outline-offset:-1px; border-color:var(--accent);
}
.filters .search{position:relative; display:flex; align-items:center}
.filters .search svg{
  position:absolute; left:9px; width:15px; height:15px; color:var(--ink-muted);
  pointer-events:none;
}
.filters .search input{padding-left:31px; min-width:230px}

.alert{
  padding:11px 15px; border-radius:var(--r); margin-bottom:16px; font-size:13px;
  display:flex; gap:9px; align-items:flex-start;
}
.alert svg{width:17px; height:17px; flex:0 0 17px; margin-top:1px}
.alert.ok{background:var(--good-soft); color:var(--good-ink)}
.alert.bad{background:var(--crit-soft); color:var(--crit-ink)}
.alert.warn{background:var(--warn-soft); color:var(--warn-ink)}

/* --------------------------------------------------- charts */
.chart{padding:6px 4px 0}
.chart svg{width:100%; height:auto; overflow:visible}
.chart .grid line{stroke:var(--line); stroke-width:1}
.chart .axis line{stroke:var(--line-strong); stroke-width:1}
.chart text{font-family:var(--sans); fill:var(--ink-muted); font-size:10.5px}
.chart text.val{fill:var(--ink-2); font-size:10.5px; font-weight:600;
  font-variant-numeric:tabular-nums}
.chart text.cat{fill:var(--ink-2); font-size:11px}
.chart .bar{transition:opacity .12s}
.chart .bar:hover{opacity:.82}
.legend{
  display:flex; gap:16px; flex-wrap:wrap; padding:2px 6px 10px;
  font-size:12px; color:var(--ink-2);
}
.legend i{
  width:10px; height:10px; border-radius:3px; display:inline-block;
  margin-right:6px; vertical-align:-1px;
}
.legend b{font-variant-numeric:tabular-nums; color:var(--ink)}

/* ----------------------------------------------------- login */
.login{
  min-height:100vh; display:grid; place-items:center; padding:20px;
  background:
    radial-gradient(1100px 500px at 12% -8%, rgba(57,135,229,.30), transparent 62%),
    radial-gradient(900px 460px at 88% 108%, rgba(27,175,122,.26), transparent 60%),
    #10141a;
}
.login .box{
  background:var(--surface); padding:34px 32px 30px; border-radius:16px;
  width:100%; max-width:370px; box-shadow:0 22px 60px rgba(0,0,0,.4);
  border:1px solid var(--ring);
}
.login .mark{
  width:42px; height:42px; border-radius:11px; margin-bottom:16px;
  background:linear-gradient(140deg,#3987e5,#1baf7a);
  display:grid; place-items:center; color:#fff;
}
.login h1{margin:0 0 3px; font-size:20px; letter-spacing:-.3px}
.login p{margin:0 0 22px; color:var(--ink-muted); font-size:13px}
.login label{
  display:block; font-size:11.5px; color:var(--ink-2); margin:13px 0 5px;
  font-weight:600; letter-spacing:.2px;
}
.login input{
  width:100%; padding:10px 12px; border:1px solid var(--line-strong);
  border-radius:var(--r-sm); font-size:14px; font-family:inherit;
  background:var(--surface); color:var(--ink);
}
.login input:focus{outline:2px solid var(--accent); outline-offset:-1px;
  border-color:var(--accent)}
.login button{
  width:100%; margin-top:22px; padding:11px; background:var(--accent);
  color:var(--on-accent); border:0; border-radius:var(--r-sm); font-size:14px;
  font-weight:600; cursor:pointer; font-family:inherit;
}
.login button:hover{background:var(--accent-ink)}
.login .tip{
  margin-top:18px; padding-top:15px; border-top:1px solid var(--line);
  font-size:11.5px; color:var(--ink-muted); line-height:1.7;
}

/* ------------------------------------------- print documents */
.doc{
  max-width:830px; margin:22px auto; background:var(--surface); padding:44px;
  border:1px solid var(--line); border-radius:var(--r-lg); box-shadow:var(--shadow);
}
.doc .head{
  display:flex; justify-content:space-between; gap:26px;
  border-bottom:2px solid var(--accent); padding-bottom:18px; margin-bottom:24px;
}
.doc .head h1{margin:0; font-size:25px; color:var(--accent-ink);
  letter-spacing:-.5px; font-weight:600}
.doc .head .co{font-size:12.5px; color:var(--ink-2); line-height:1.65}
.doc .head .co b{color:var(--ink); font-size:15px; display:block; margin-bottom:3px}
.doc .meta{display:flex; justify-content:space-between; gap:30px; margin-bottom:22px}
.doc .meta .blk{font-size:13px; line-height:1.7}
.doc .meta .lbl{
  font-size:10px; text-transform:uppercase; letter-spacing:.9px;
  color:var(--ink-muted); margin-bottom:4px; font-weight:600;
}
.doc table{margin-bottom:16px}
.doc table th{position:static}
.doc .totals{margin-left:auto; width:296px; font-size:13.5px}
.doc .totals td{padding:6px 10px; border:0}
.doc .totals tr.grand td{
  border-top:2px solid var(--accent); font-size:16px; font-weight:700; padding-top:10px;
}
.doc .sign{display:flex; justify-content:space-between; margin-top:58px; gap:20px}
.doc .sign div{
  border-top:1px solid var(--line-strong); padding-top:6px; width:190px;
  text-align:center; font-size:12px; color:var(--ink-2);
}
.doc .note{
  margin-top:22px; font-size:11.5px; color:var(--ink-muted);
  border-top:1px solid var(--line); padding-top:12px;
}
.doc .stamp{
  font-size:11.5px; font-weight:700; letter-spacing:1.8px; padding:5px 13px;
  border:2px solid; border-radius:6px; text-transform:uppercase;
  display:inline-block; margin-top:9px;
}

@media print{
  :root{--page:#fff; --surface:#fff; --ink:#000; --ink-2:#333; --line:#ddd}
  .side,.top,.noprint{display:none!important}
  body{background:#fff}
  .doc{border:0; margin:0; padding:0; max-width:none; box-shadow:none}
  .wrap{padding:0}
  .card{box-shadow:none; border-color:#ddd; break-inside:avoid}
  th{background:#f4f4f4!important; position:static}
}

@media (max-width:900px){
  .shell{flex-direction:column}
  .side{width:100%; flex:none; height:auto; position:static}
  .nav{display:flex; flex-wrap:wrap; padding:6px}
  .nav .grp{display:none}
  .nav a{border-left:0; border-radius:var(--r-sm); padding:7px 11px}
  .nav a.on{border-left:0; box-shadow:inset 0 -2px 0 var(--accent)}
  .top{padding:0 16px; position:static}
  .wrap{padding:16px 16px 34px}
  .doc{padding:24px; margin:0}
  .filters .search input{min-width:0; width:100%}
  .tiles{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
  .tile .v{font-size:21px}
}

/* ------------------------------------------------------ forms */
.fc{
  width:100%; padding:8px 10px; border:1px solid var(--line-strong);
  border-radius:var(--r-sm); font-size:13.5px; font-family:inherit;
  background:var(--surface); color:var(--ink);
}
.fc:focus{outline:2px solid var(--accent); outline-offset:-1px; border-color:var(--accent)}
select.fc{cursor:pointer}
textarea.fc{resize:vertical; min-height:44px}
.num-in{text-align:right; font-variant-numeric:tabular-nums}

.form-grid{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(215px,1fr));
  gap:14px 16px;
}
.field{min-width:0}
.field > label{
  display:block; font-size:11.5px; font-weight:600; color:var(--ink-2);
  margin-bottom:5px; letter-spacing:.2px;
}
.field .help{font-size:11.5px; color:var(--ink-muted); margin-top:4px}
.field .err{font-size:11.5px; color:var(--crit-ink); margin-top:4px; font-weight:500}
.field.wide{grid-column:1/-1}
.fc.is-bad{border-color:var(--critical)}

/* repeating rows */
.rows{width:100%; border-collapse:collapse; font-size:13px}
.rows th{
  padding:7px 8px; font-size:10px; background:transparent;
  border-bottom:1px solid var(--line); position:static;
}
.rows td{padding:5px 6px; border-bottom:1px solid var(--line); vertical-align:top}
.rows td.mini{width:44px}
.rows tr.gone{display:none}
.rows .fc{padding:6px 8px; font-size:13px}
.rowbar{
  display:flex; gap:9px; align-items:center; padding:12px 2px 2px; flex-wrap:wrap;
}
.del{
  border:1px solid transparent; background:transparent; color:var(--ink-muted);
  cursor:pointer; border-radius:6px; padding:6px; line-height:0; font-family:inherit;
}
.del:hover{background:var(--crit-soft); color:var(--crit-ink)}
.del svg{width:15px; height:15px}

/* sticky action bar with live totals */
.formbar{
  position:sticky; bottom:0; z-index:15; margin:0 -24px -40px;
  padding:13px 24px; background:var(--surface); border-top:1px solid var(--line);
  display:flex; gap:14px; align-items:center; flex-wrap:wrap;
  box-shadow:0 -3px 14px rgba(11,11,11,.06);
}
.formbar .spacer{flex:1}
.formbar .sums{display:flex; gap:20px; flex-wrap:wrap; font-size:13px}
.formbar .sums span{color:var(--ink-muted)}
.formbar .sums b{
  color:var(--ink); font-variant-numeric:tabular-nums; margin-left:5px;
  font-size:14.5px;
}
.formbar .sums b.pos{color:var(--good-ink)}
.formbar .sums b.neg{color:var(--crit-ink)}

@media (max-width:900px){
  .formbar{margin:0 -16px -34px; padding:12px 16px}
  .rows{min-width:720px}
}

/* Sign-out is a POST form (Django 5 refuses GET), styled to match the rail. */
.side .foot form{display:flex}
.side .foot .signout{
  background:transparent; border:0; padding:4px; cursor:pointer; line-height:0;
  color:var(--nav-ink); border-radius:6px; font-family:inherit;
}
.side .foot .signout:hover{background:var(--nav-hover); color:var(--nav-ink-hi)}