/* Field Budget — instructor app
   Read in bright Andean sun and in a dim hostel at 9pm. High contrast, big
   targets, tabular numerals so columns of money line up and can be scanned. */

:root {
  --paper: #F2F3EF;
  --card: #FFFFFF;
  --ink: #1A231D;
  --muted: #67766C;
  --rule: #D8DDD5;
  --gauge: #C3CBBF;
  --deep: #14584A;
  --deep-soft: #E4EDE8;
  --over: #9C3B27;
  --over-soft: #F6E5E0;
  --pad: 16px;
  --radius: 10px;
  font-size: 17px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  max-width: 100%;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.45;
  overscroll-behavior-y: none;
}

.num {
  font-family: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* ---- top bar ---- */
.bar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 12px;
  padding: calc(env(safe-area-inset-top) + 10px) var(--pad) 10px;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.bar-id { flex: 1; min-width: 0; }
.bar-name { display: block; font-weight: 600; font-size: 1rem; }
.bar-sub { display: block; font-size: 0.78rem; color: var(--muted); }

.chip {
  flex: none; border: 1px solid var(--rule); background: var(--card);
  color: var(--muted); border-radius: 999px;
  padding: 7px 13px; font: inherit; font-size: 0.78rem; cursor: pointer;
}
.chip[data-state="pending"] { border-color: var(--deep); color: var(--deep); background: var(--deep-soft); font-weight: 600; }
.chip[data-state="offline"] { border-color: var(--over); color: var(--over); background: var(--over-soft); }

/* ---- main ---- */
main { padding: var(--pad) var(--pad) 108px; max-width: 560px; margin: 0 auto; }
.dock, .sheet-body { max-width: 560px; margin-left: auto; margin-right: auto; }

.section-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin: 22px 2px 10px;
}
.section-head:first-child { margin-top: 4px; }
.section-head h2 { margin: 0; font-size: 0.86rem; font-weight: 600; color: var(--muted); }
.section-head span { font-size: 0.78rem; color: var(--muted); }

/* ---- category gauges: the signature element ----
   Each row is a fuel gauge. The bar is the row's own bottom edge, so the
   remaining balance reads without any legend. */
.gauge-list { display: flex; flex-direction: column; gap: 8px; }

.gauge {
  position: relative; width: 100%; text-align: left;
  background: var(--card); border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 13px 14px 16px;
  font: inherit; color: inherit; cursor: pointer;
  overflow: hidden;
}
.gauge:active { background: #FAFBF9; }
.gauge:focus-visible { outline: 2px solid var(--deep); outline-offset: 2px; }

.gauge-top { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.gauge-name { font-weight: 500; }
.gauge-left { font-size: 1.02rem; font-weight: 600; }
.gauge-meta { margin-top: 2px; font-size: 0.76rem; color: var(--muted); }

.gauge-track {
  position: absolute; left: 0; right: 0; bottom: 0; height: 5px;
  background: var(--gauge);
}
.gauge-fill { height: 100%; background: var(--deep); transition: width .3s ease; }
.gauge.over .gauge-left { color: var(--over); }
.gauge.over .gauge-fill { background: var(--over); }

/* ---- cash float ---- */
.float-row {
  display: flex; justify-content: space-between; align-items: baseline;
  background: var(--card); border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 12px 14px; margin-bottom: 8px;
}
.float-cur { font-weight: 500; }
.float-amt { font-weight: 600; }
.float-amt.negative { color: var(--over); }

.empty {
  background: var(--card); border: 1px dashed var(--rule);
  border-radius: var(--radius); padding: 22px 18px; color: var(--muted);
  font-size: 0.9rem;
}

/* ---- history ---- */
.entry {
  display: flex; gap: 12px; padding: 12px 2px;
  border-bottom: 1px solid var(--rule);
}
.entry:last-child { border-bottom: 0; }
.entry-main { flex: 1; min-width: 0; }
.entry-desc { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.entry-meta { font-size: 0.76rem; color: var(--muted); }
.entry-amt { font-weight: 600; white-space: nowrap; }
.dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--deep); margin-right: 5px; vertical-align: middle; }
.dot.pending { background: var(--over); }

/* ---- dock ---- */
.dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  display: flex; gap: 8px;
  padding: 10px var(--pad) calc(env(safe-area-inset-bottom) + 10px);
  background: var(--paper); border-top: 1px solid var(--rule);
}
.dock-btn {
  flex: 1; min-height: 52px; border-radius: var(--radius);
  border: 1px solid var(--rule); background: var(--card);
  font: inherit; font-weight: 500; color: var(--ink); cursor: pointer;
}
.dock-btn.primary { flex: 2; background: var(--deep); border-color: var(--deep); color: #fff; font-weight: 600; }
.dock-btn:active { transform: translateY(1px); }

/* ---- sheet ---- */
.scrim { position: fixed; inset: 0; background: rgba(26,35,29,.42); z-index: 30; }
.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  max-height: 92vh; overflow-y: auto; overflow-x: hidden;
  background: var(--paper);
  border-radius: 18px 18px 0 0;
  padding: 8px var(--pad) calc(env(safe-area-inset-bottom) + 20px);
}
@media (prefers-reduced-motion: no-preference) {
  .sheet { animation: rise .18s ease-out; }
  @keyframes rise { from { transform: translateY(18px); opacity: .6; } }
}
.sheet-grip { width: 38px; height: 4px; border-radius: 2px; background: var(--rule); margin: 6px auto 14px; }
.sheet h2 { margin: 0 0 14px; font-size: 1.1rem; }

/* ---- forms ---- */
label { display: block; margin: 14px 0 6px; font-size: 0.82rem; font-weight: 500; color: var(--muted); }
input, select, textarea {
  width: 100%; max-width: 100%; min-width: 0;
  font: inherit; color: var(--ink);
  background: var(--card); border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 13px 12px; min-height: 50px;
}

/* Date inputs carry an intrinsic width from their shadow DOM that width:100%
   does not beat on mobile Safari. Without this the row overflows the viewport
   and the fixed dock and sheet detach from the visible area. */
input[type="date"] {
  -webkit-appearance: none; appearance: none;
  display: block; height: 50px; line-height: normal;
}
input[type="date"]::-webkit-date-and-time-value { text-align: left; margin: 0; }
input[type="date"]::-webkit-calendar-picker-indicator { margin-left: 4px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--deep); outline-offset: -1px; border-color: var(--deep); }
input[type="number"] { font-family: "IBM Plex Mono", ui-monospace, monospace; font-variant-numeric: tabular-nums; }

.amount-input { font-size: 1.7rem; font-weight: 600; text-align: right; padding: 14px 12px; min-height: 62px; }

.field-row { display: flex; gap: 10px; }
/* min-width:0 is required — flex items default to min-width:auto and will not
   shrink below their content, which is what pushes the row off screen. */
.field-row > div { flex: 1; min-width: 0; }

.seg { display: flex; gap: 8px; }
.seg button {
  flex: 1; min-height: 50px; border-radius: var(--radius);
  border: 1px solid var(--rule); background: var(--card);
  font: inherit; color: var(--ink); cursor: pointer;
}
.seg button[aria-pressed="true"] { background: var(--deep); border-color: var(--deep); color: #fff; font-weight: 600; }

.receipt {
  display: flex; align-items: center; gap: 12px;
  border: 1px dashed var(--rule); background: var(--card);
  border-radius: var(--radius); padding: 12px; margin-top: 6px;
}
.receipt img { width: 54px; height: 54px; object-fit: cover; border-radius: 6px; }
.receipt-btn { flex: 1; min-height: 44px; border: 0; background: none; font: inherit; text-align: left; color: var(--deep); font-weight: 500; cursor: pointer; }

.hint { font-size: 0.78rem; color: var(--muted); margin-top: 6px; }
.hint strong { font-weight: 600; color: var(--ink); }
.error { font-size: 0.82rem; color: var(--over); margin-top: 6px; }

.submit {
  width: 100%; min-height: 56px; margin-top: 22px;
  border: 0; border-radius: var(--radius);
  background: var(--deep); color: #fff; font: inherit; font-weight: 600; font-size: 1.02rem;
  cursor: pointer;
}
.submit:active { transform: translateY(1px); }
.ghost {
  width: 100%; min-height: 48px; margin-top: 8px;
  border: 1px solid var(--rule); border-radius: var(--radius);
  background: none; color: var(--muted); font: inherit; cursor: pointer;
}

/* ---- toast ---- */
.toast {
  position: fixed; left: 50%; bottom: 96px; transform: translateX(-50%);
  z-index: 50; max-width: 88vw;
  background: var(--ink); color: var(--paper);
  border-radius: 999px; padding: 11px 20px; font-size: 0.88rem;
}

/* ---- sign-in ----
   Shown when /api/me says signed_out. Cloudflare Access used to cover this
   invisibly; on Netlify it is a screen the instructor actually sees. */
.signin {
  max-width: 400px; margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 48px) var(--pad) 40px;
}
.signin h1 { margin: 0 0 6px; font-size: 1.4rem; }
.signin-lede { margin: 0 0 26px; color: var(--muted); font-size: 0.92rem; }
.gbtn { min-height: 44px; display: flex; justify-content: center; }
.signin-or {
  display: flex; align-items: center; gap: 12px;
  margin: 24px 0 4px; color: var(--muted); font-size: 0.8rem;
}
.signin-or::before, .signin-or::after {
  content: ''; flex: 1; height: 1px; background: var(--rule);
}
body.signed-out .bar, body.signed-out .dock, body.signed-out main { display: none; }