/*
  Trip Tracker — styles.
  Layout: phone-first single column (it's mostly used on the road),
  widening to a centred 820px column on desktop. One summary strip,
  then tabs. Ledger palette: charcoal ground, amber for money,
  teal for "included / on budget", rust for over budget.
  System fonts only: no third-party font requests.
*/
:root {
  --bg: #14181D;
  --surface: #1B2027;
  --surface-2: #232A33;
  --border: #2E3642;
  --fg: #E9E6DC;
  --fg-muted: #8C94A1;
  --accent: #E8A33D;
  --accent-ink: #1C1304;
  --good: #4FB0A5;
  --bad: #D9684F;
  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-num: ui-monospace, "SF Mono", "Cascadia Mono", "Roboto Mono", Menlo, monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #F1EFE8; --surface: #FFFFFF; --surface-2: #F7F5EF; --border: #DCD8CC;
    --fg: #1C2128; --fg-muted: #626B78; --accent: #B8791F; --accent-ink: #FFFFFF;
    --good: #2E8F84; --bad: #B5503B;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.45 var(--font-ui);
  padding: env(safe-area-inset-top, 0px) max(16px, env(safe-area-inset-right, 0px)) env(safe-area-inset-bottom, 0px) max(16px, env(safe-area-inset-left, 0px));
  -webkit-text-size-adjust: 100%;
}
[hidden] { display: none !important; }
.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; }
.muted { color: var(--fg-muted); }
.wrap { max-width: 820px; margin: 0 auto; padding-block: 16px 64px; }
.boot { padding: 48px 0; text-align: center; color: var(--fg-muted); }

/* ---------- controls ---------- */
button, input, select, textarea { font: inherit; color: inherit; }
button {
  cursor: pointer; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface-2); padding: 8px 13px; font-size: 14px; font-weight: 600;
}
button:disabled { opacity: .5; cursor: default; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
button.ghost { background: transparent; border-color: transparent; color: var(--fg-muted); padding: 6px 8px; }
button.danger { color: var(--bad); }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible {
  outline: 2px solid var(--good); outline-offset: 2px;
}
input, select, textarea {
  width: 100%; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 8px; padding: 9px 10px; font-size: 16px; /* 16px stops iOS zoom-on-focus */
  min-width: 0;
}
input[type=checkbox] { width: 20px; height: 20px; accent-color: var(--good); flex-shrink: 0; }
label.field { display: block; }
label.field > span {
  display: block; font-size: 11.5px; letter-spacing: .05em; text-transform: uppercase;
  color: var(--fg-muted); margin-bottom: 4px;
}
.grid2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px; }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
input[type=date] { max-width: 100%; min-height: 42px; }
label.field { min-width: 0; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

/* ---------- login ---------- */
.login {
  max-width: 380px; margin: 12vh auto 0; background: var(--surface);
  border: 1px solid var(--border); border-radius: 14px; padding: 24px;
}
.login h1 { margin: 0 0 4px; font-size: 22px; }
.login p { margin: 0 0 18px; }
.notice { font-size: 14px; padding: 10px 12px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--border); }

/* ---------- top bar ---------- */
.topbar { display: flex; gap: 8px; align-items: center; margin-bottom: 18px; }
.brand { font-weight: 800; letter-spacing: -.01em; white-space: nowrap; }
.topbar select { width: auto; min-width: 0; flex: 0 1 auto; max-width: 260px; padding: 7px 10px; font-size: 15px; text-overflow: ellipsis; }
.topbar button { white-space: nowrap; flex-shrink: 0; }

/* ---------- trip header + summary ---------- */
.trip-head { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 14px; }
.trip-head h1 { font-size: clamp(21px, 5vw, 27px); margin: 0; text-wrap: balance; letter-spacing: -.01em; }
.trip-head .meta { font-size: 13.5px; color: var(--fg-muted); margin-top: 2px; }
.pill {
  display: inline-block; font-size: 10.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: 2px 8px; border-radius: 99px; border: 1px solid var(--border); color: var(--fg-muted); vertical-align: 2px;
}
.pill.active { color: var(--good); border-color: var(--good); }

.summary {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px;
  background: var(--border); border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
  margin-bottom: 8px;
}
.summary > div { background: var(--surface); padding: 12px 14px; min-width: 0; }
.summary .lbl { font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--fg-muted); }
.summary .val { font-family: var(--font-num); font-variant-numeric: tabular-nums; font-weight: 700; font-size: 19px; margin-top: 2px; overflow-wrap: anywhere; }
.summary .val.money { color: var(--accent); }
.summary .val.good { color: var(--good); }
.summary .val.bad { color: var(--bad); }
.warn-line { font-size: 13px; color: var(--accent); margin: 6px 2px 0; }

/* ---------- today / on track ---------- */
.pace {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 12px;
}
.pace-cell {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; min-width: 0;
}
.pace-cell .lbl { font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--fg-muted); }
.pace-cell .val { font-family: var(--font-num); font-variant-numeric: tabular-nums; font-weight: 700; font-size: 18px; margin-top: 3px; overflow-wrap: anywhere; }
.pace-cell .val.good { color: var(--good); }
.pace-cell .val.bad { color: var(--bad); }
.pace-cell .val.muted { color: var(--fg-muted); }
.pace-cell .sub { font-size: 12.5px; color: var(--fg-muted); margin-top: 4px; }
.meter { height: 6px; background: var(--border); border-radius: 4px; overflow: hidden; margin-top: 7px; }
.meter .fill { height: 100%; background: var(--good); border-radius: 4px; }
.meter .fill.over { background: var(--bad); }

/* ---------- receipt thumbnails ---------- */
.thumb {
  flex-shrink: 0; width: 46px; height: 46px; padding: 0; border-radius: 8px; overflow: hidden;
  background: var(--surface-2); border: 1px solid var(--border);
}
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ---------- chat panel (desktop only) ---------- */
.chat-launch {
  position: fixed; z-index: 40;
  right: calc(20px + env(safe-area-inset-right, 0px)); bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  border-radius: 99px; padding: 11px 18px; box-shadow: 0 6px 20px rgba(0, 0, 0, .35);
}
.chat-panel {
  position: fixed; z-index: 40;
  right: calc(20px + env(safe-area-inset-right, 0px)); bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  width: 380px; height: min(560px, calc(100vh - 40px));
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .4); overflow: hidden;
}
.chat-head { display: flex; align-items: center; gap: 8px; padding: 10px 12px 10px 16px; border-bottom: 1px solid var(--border); }
.chat-head .muted { font-size: 12.5px; }
.chat-log { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 8px; }
.msg { max-width: 86%; padding: 8px 11px; border-radius: 12px; font-size: 14px; line-height: 1.4; }
.msg .msg-text { white-space: pre-wrap; overflow-wrap: anywhere; }
.msg img { display: block; max-width: 100%; max-height: 180px; border-radius: 8px; margin-bottom: 6px; }
.msg.me { align-self: flex-end; background: var(--accent); color: var(--accent-ink); border-bottom-right-radius: 4px; }
.msg.bot { align-self: flex-start; background: var(--surface-2); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.msg.typing { color: var(--fg-muted); }
.chat-chip { display: flex; align-items: center; gap: 6px; padding: 4px 14px; font-size: 13px; color: var(--fg-muted); }
.chat-form { display: flex; gap: 6px; align-items: flex-end; padding: 10px; border-top: 1px solid var(--border); }
.chat-form textarea { resize: none; min-height: 40px; max-height: 120px; font-size: 15px; }
.chat-form .attach { font-size: 18px; padding: 6px 8px; }
@media (max-width: 899px) {
  .chat-launch, .chat-panel { display: none !important; }
}
/* With the chat open, slide the page left so the panel doesn't cover it. */
@media (min-width: 900px) {
  body.chat-open .wrap { margin-left: max(0px, calc((100vw - 820px - 420px) / 2)); margin-right: 420px; }
}

/* ---------- fees, wallet, bank amounts ---------- */
.stat-sub { font-size: 11.5px; color: var(--fg-muted); margin-top: 2px; }
.wallet { margin-bottom: 12px; }
.wallet-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.wallet-head h3 { margin: 0; }
.wallet-amounts { display: flex; gap: 12px; flex-wrap: wrap; }
.wallet-amt { font-family: var(--font-num); font-variant-numeric: tabular-nums; font-weight: 700; font-size: 16px; color: var(--good); }
.wallet-amt.bad { color: var(--bad); }
.item.movement { background: var(--surface-2); border-style: dashed; }
.settle { margin-bottom: 12px; }
.settle summary { cursor: pointer; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 14px; }
.settle summary .muted { font-size: 12.5px; }
.settle-row {
  display: grid; grid-template-columns: minmax(0, 1fr) 110px 90px auto auto; gap: 8px; align-items: center;
  padding: 10px 0 0; margin-top: 10px; border-top: 1px solid var(--border);
}
.settle-label { display: flex; flex-direction: column; min-width: 0; font-size: 14px; }
.settle-label .muted { font-size: 12px; }
.settle-row input, .settle-row select { padding: 7px 8px; font-size: 15px; }
@media (max-width: 640px) {
  .settle-row { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .settle-label { grid-column: 1 / -1; }
}

/* ---------- category budgets ---------- */
.cat-budgets { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 10px; }
.cat-budgets input { padding: 7px 9px; font-size: 15px; }

/* ---------- tabs ---------- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin: 18px 0 14px; }
.tabs button {
  background: transparent; border: 0; border-bottom: 2px solid transparent; border-radius: 0;
  padding: 10px 12px; color: var(--fg-muted);
}
.tabs button[aria-selected=true] { color: var(--fg); border-bottom-color: var(--accent); }

/* ---------- list items ---------- */
.list { display: flex; flex-direction: column; gap: 7px; }
.item {
  display: flex; gap: 12px; align-items: flex-start; background: var(--surface);
  border: 1px solid var(--border); border-radius: 10px; padding: 11px 13px;
}
.item.off { opacity: .55; }
.item.off .label { text-decoration: line-through; }
.item .body { flex: 1; min-width: 0; }
.item .label { font-weight: 600; overflow-wrap: anywhere; }
.item .sub { font-size: 12.5px; color: var(--fg-muted); margin-top: 2px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.item .notes { font-size: 13px; color: var(--fg-muted); margin-top: 5px; overflow-wrap: anywhere; }
.item .side { text-align: right; flex-shrink: 0; display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.item .amt { font-family: var(--font-num); font-variant-numeric: tabular-nums; font-weight: 700; }
.item .amt-sub { font-family: var(--font-num); font-variant-numeric: tabular-nums; font-size: 12px; color: var(--fg-muted); }
.tag {
  font-size: 10.5px; letter-spacing: .04em; text-transform: uppercase; padding: 1px 7px;
  border-radius: 99px; background: var(--surface-2); border: 1px solid var(--border);
}
.tag.review { color: var(--accent); border-color: var(--accent); }
.day-head {
  display: flex; justify-content: space-between; font-size: 12px; letter-spacing: .05em;
  text-transform: uppercase; color: var(--fg-muted); margin: 14px 2px 2px;
}
.empty {
  border: 1px dashed var(--border); border-radius: 10px; padding: 24px 16px;
  text-align: center; color: var(--fg-muted);
}
.section-head { display: flex; align-items: center; gap: 8px; margin: 4px 0 10px; }
.section-head h2 { margin: 0; font-size: 13px; letter-spacing: .07em; text-transform: uppercase; color: var(--fg-muted); }

/* ---------- quick add ---------- */
.quick {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 8px; align-items: end; margin-bottom: 16px;
}
.trip-head .body { flex: 1; min-width: 0; }
.quick .wide { grid-column: span 2; }

/* ---------- charts ---------- */
.charts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; min-width: 0; }
.card h3 { margin: 0 0 10px; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--fg-muted); font-weight: 700; }
.bars { display: flex; flex-direction: column; gap: 7px; }
.bar-row { display: grid; grid-template-columns: 96px 1fr auto; gap: 8px; align-items: center; font-size: 13px; }
.bar-row .track { height: 9px; background: var(--surface-2); border-radius: 5px; overflow: hidden; }
.bar-row .fill { height: 100%; background: var(--accent); border-radius: 5px; }
.bar-row .fill.over { background: var(--bad); }
.bar-row .v { font-family: var(--font-num); font-variant-numeric: tabular-nums; font-size: 12.5px; }
.daily svg { width: 100%; height: auto; display: block; }
.daily .bar { fill: var(--accent); }
.daily .bar.over { fill: var(--bad); }
.daily .budget-line { stroke: var(--good); stroke-width: 1.5; stroke-dasharray: 4 3; fill: none; }
.daily .axis { fill: var(--fg-muted); font-size: 11px; font-family: var(--font-num); }
.daily .grid { stroke: var(--border); stroke-width: 1; }
.legend { font-size: 12px; color: var(--fg-muted); margin-top: 6px; display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- dialogs ---------- */
dialog {
  border: 1px solid var(--border); border-radius: 14px; background: var(--surface); color: var(--fg);
  padding: 0; width: min(460px, calc(100vw - 24px)); max-height: calc(100dvh - 32px);
}
dialog::backdrop { background: rgba(0, 0, 0, .55); }
dialog form { padding: 18px; overflow-y: auto; max-height: calc(100dvh - 32px); }
dialog h2 { margin: 0 0 14px; font-size: 17px; }
.dialog-actions { display: flex; gap: 8px; margin-top: 18px; align-items: center; }
.segments { display: flex; flex-direction: column; gap: 6px; }
.seg-row { display: grid; grid-template-columns: 1.2fr .6fr 1fr 1fr .8fr auto; gap: 6px; align-items: center; }
.seg-row input { padding: 7px 6px; font-size: 14px; }
.hint { font-size: 12.5px; color: var(--fg-muted); }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  background: var(--fg); color: var(--bg); padding: 10px 16px; border-radius: 10px;
  font-size: 14px; max-width: calc(100vw - 32px); z-index: 50;
}
.toast.error { background: var(--bad); color: #fff; }

footer { margin-top: 32px; font-size: 12px; color: var(--fg-muted); text-align: center; }
footer a { color: inherit; }

/* ---------- narrow screens ---------- */
@media (max-width: 640px) {
  .summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pace { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .pace-cell { display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: 10px; align-items: baseline; }
  .pace-cell .lbl { grid-column: 1; }
  .pace-cell .val { grid-column: 2; grid-row: 1; margin: 0; font-size: 16px; text-align: right; }
  .pace-cell .meter, .pace-cell .sub { grid-column: 1 / -1; }
  .charts { grid-template-columns: 1fr; }
  .quick { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .brand { display: none; }
  .topbar select { max-width: 55vw; }
  .quick .wide { grid-column: 1 / -1; }
  .quick button { grid-column: 1 / -1; }
  .seg-row { grid-template-columns: 1fr 1fr; }
  .grid3 { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: no-preference) {
  .item { animation: rise .18s ease both; }
  @keyframes rise { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: none; } }
}