/* Points Watcher - dark, mobile-first, no build step. */

:root {
  --bg: #0e1116;
  --surface: #171d26;
  --surface-2: #1f2833;
  --border: #2c3745;
  --border-strong: #3d4a5c;

  --text: #e9eef5;
  --muted: #aab7c7;

  --good: #6ee7a8;
  --good-bg: #12281f;
  --warn: #ffc857;
  --warn-bg: #2e2312;
  --bad: #ff8a8a;
  --bad-bg: #2e1618;
  --accent: #7cb8ff;
  --accent-bg: #14263c;
  --focus: #ffd166;

  --radius: 12px;
  --gap: 1rem;
  --maxw: 62rem;

  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

/* Several elements below set display:flex, which would otherwise beat the
   hidden attribute's UA display:none and leave both auth states on screen. */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
}

h1, h2, h3 { line-height: 1.25; }
h2 { font-size: 1.25rem; margin: 0; }
h3 { font-size: 1.05rem; margin: 2rem 0 .5rem; }
p { margin: 0 0 .75rem; }

a { color: var(--accent); }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent-bg);
  color: var(--text);
  padding: .75rem 1rem;
  z-index: 20;
}
.skip-link:focus { left: .5rem; top: .5rem; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- header ---------- */

.app-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: .75rem 1rem .5rem;
}
.app-header__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}
.app-title {
  font-size: 1.15rem;
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: .4rem;
  flex-wrap: wrap;
}
.app-title__sub {
  font-size: .75rem;
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.lock-hint {
  max-width: var(--maxw);
  margin: .4rem auto 0;
  font-size: .8rem;
  color: var(--muted);
}

.auth {
  display: flex;
  align-items: center;
  gap: .5rem .75rem;
  flex-wrap: wrap;
}
.auth__who {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin: 0;
  font-size: .8rem;
  color: var(--muted);
  max-width: 15rem;
  overflow-wrap: anywhere;
}
.auth__who strong { color: var(--text); font-weight: 700; }
.auth__dot {
  width: .55rem;
  height: .55rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--border-strong);
  border: 1px solid var(--muted);
}
.auth__dot--in { background: var(--good); border-color: var(--good); }

/* Signed-out explanation shown wherever a write control has been disabled. */
.gate {
  display: flex;
  align-items: center;
  gap: .6rem;
  flex-wrap: wrap;
  margin: 0 0 1rem;
  padding: .7rem .85rem;
  border: 1px solid var(--border-strong);
  border-left: 5px solid var(--accent);
  border-radius: var(--radius);
  background: var(--accent-bg);
  font-size: .85rem;
}
.gate > span:nth-child(2) { flex: 1 1 14rem; min-width: 0; }

/* ---------- layout ---------- */

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1rem 1rem 3rem;
}

section:not([hidden]) + section:not([hidden]) { margin-top: 2.5rem; }

/* A view heading sits directly on top of its form; give it room. */
h2 + form, h2 + .gate, .detail-state + h3:first-of-type { margin-top: 1rem; }
#add-heading { margin-bottom: 1.1rem; }

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.status {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1rem;
  min-height: 1.35rem;
  font-size: .85rem;
  color: var(--muted);
}
.status:empty { min-height: .5rem; }

.app-footer {
  border-top: 1px solid var(--border);
  padding: 1rem;
  color: var(--muted);
  font-size: .8rem;
}
.app-footer p { max-width: var(--maxw); margin: 0 auto; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  min-height: 44px;
  padding: .55rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn[disabled]:hover { border-color: var(--border-strong); }
.btn--primary[disabled]:hover { background: var(--accent); }

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0a1420;
}
.btn--primary:hover { background: #9ecbff; }

.btn--ghost { background: transparent; }

.btn--danger {
  background: transparent;
  border-color: var(--bad);
  color: var(--bad);
}
.btn--danger:hover { background: var(--bad-bg); border-color: var(--bad); }

.btn--small {
  min-height: 40px;
  padding: .4rem .7rem;
  font-size: .875rem;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  min-height: 44px;
  margin-bottom: .5rem;
  padding: .4rem .2rem;
  background: none;
  border: 0;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
}
.back-btn:hover { text-decoration: underline; }

/* ---------- cards ---------- */

.cards {
  display: grid;
  gap: var(--gap);
  grid-template-columns: 1fr;
}

.card {
  border: 1px solid var(--border);
  border-left: 5px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1rem;
}
.card--good { border-left-color: var(--good); }
.card--warn { border-left-color: var(--warn); }
.card--bad  { border-left-color: var(--bad); }
.card--off  { opacity: .62; border-left-color: var(--border-strong); }

.card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .5rem;
  flex-wrap: wrap;
}
.card__route {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: .02em;
}
.card__route .arrow { color: var(--muted); margin: 0 .15rem; }

.card__meta {
  color: var(--muted);
  font-size: .875rem;
  margin: .25rem 0 .75rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .2rem .55rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
  border: 1px solid transparent;
  white-space: nowrap;
}
.badge--good { background: var(--good-bg); color: var(--good); border-color: var(--good); }
.badge--warn { background: var(--warn-bg); color: var(--warn); border-color: var(--warn); }
.badge--bad  { background: var(--bad-bg);  color: var(--bad);  border-color: var(--bad); }
.badge--neutral { background: var(--surface-2); color: var(--muted); border-color: var(--border-strong); }

.points {
  display: flex;
  align-items: baseline;
  gap: .35rem;
  flex-wrap: wrap;
}
.points__num {
  font-size: clamp(2rem, 9vw, 2.6rem);
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}
.points__unit { color: var(--muted); font-size: .9rem; font-weight: 600; }
.points__none { font-size: 1.1rem; color: var(--muted); font-weight: 600; }

.card__threshold { font-size: .875rem; color: var(--muted); margin: .35rem 0 0; }
.card__threshold strong { color: var(--text); font-variant-numeric: tabular-nums; }

.card__error {
  margin: .6rem 0 0;
  padding: .5rem .65rem;
  border-radius: 8px;
  background: var(--bad-bg);
  border: 1px solid var(--bad);
  color: var(--text);
  font-size: .8rem;
  overflow-wrap: anywhere;
}

.card__legacy {
  margin: .6rem 0 0;
  padding: .6rem .7rem;
  border-radius: 8px;
  background: var(--warn-bg);
  border: 1px solid var(--warn);
  font-size: .85rem;
}
.card__legacy p { margin: 0 0 .5rem; }

.card__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  flex-wrap: wrap;
  margin-top: .9rem;
  padding-top: .75rem;
  border-top: 1px solid var(--border);
}
.card__checked { color: var(--muted); font-size: .8rem; margin: 0; }

/* ---------- attention banner ---------- */

.attention {
  border: 1px solid var(--warn);
  border-left: 5px solid var(--warn);
  background: var(--warn-bg);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1.25rem;
}
.attention__title {
  margin: 0 0 .5rem;
  font-size: 1rem;
  color: var(--warn);
  display: flex;
  gap: .4rem;
  align-items: baseline;
}
.attention__body { margin: 0 0 .6rem; font-size: .9rem; }
.attention__list { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }

/* ---------- callouts / alerts / placeholders ---------- */

.callout {
  border: 1px solid var(--border);
  border-left: 5px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 1rem;
  margin: 0 0 1rem;
}
.callout--warn { border-color: var(--warn); border-left-color: var(--warn); background: var(--warn-bg); }
.callout p:last-child { margin-bottom: 0; }
.callout__aside { font-size: .85rem; color: var(--muted); }

.alert {
  border-radius: var(--radius);
  padding: .75rem 1rem;
  margin: 0 0 1rem;
  border: 1px solid var(--border);
  font-size: .9rem;
}
.alert p { margin: 0 0 .5rem; }
.alert p:last-child { margin-bottom: 0; }
.alert--bad  { background: var(--bad-bg);  border-color: var(--bad); }
.alert--good { background: var(--good-bg); border-color: var(--good); }

.placeholder {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 1.25rem;
  color: var(--muted);
  font-size: .9rem;
}
.placeholder__title { color: var(--text); font-weight: 700; font-size: 1rem; }

.spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  vertical-align: -2px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .spinner { animation-duration: 2.4s; }
}

/* ---------- forms ---------- */

form { margin: 0; }

.field { margin: 0 0 1rem; }
.field-row { display: grid; gap: 0 1rem; grid-template-columns: 1fr 1fr; }

label {
  display: block;
  font-weight: 600;
  font-size: .9rem;
  margin-bottom: .35rem;
}
.optional { font-weight: 400; color: var(--muted); }

input[type="text"],
input[type="email"],
input[type="date"],
input[type="number"],
input[type="password"] {
  width: 100%;
  min-height: 46px;
  padding: .55rem .7rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 1rem; /* keeps iOS from zooming on focus */
}
input::placeholder { color: #7c8a9c; }
input[aria-invalid="true"] { border-color: var(--bad); background: #1a1214; }
input.iata { text-transform: uppercase; letter-spacing: .12em; font-weight: 700; }

.help { font-size: .8rem; color: var(--muted); margin: .3rem 0 0; }

.field-err {
  font-size: .8rem;
  color: var(--bad);
  margin: .3rem 0 0;
  font-weight: 600;
}
.field-err:empty { display: none; }

.field--check {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .1rem .6rem;
  align-items: center;
}
.field--check input { width: 22px; height: 22px; accent-color: var(--accent); }
.field--check label { margin: 0; }
.field--check .help { grid-column: 2; }

.form-actions {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  margin-top: 1.25rem;
}

/* ---------- detail ---------- */

.detail-heading { font-size: 1.5rem; margin: .25rem 0 .25rem; }
.detail-meta { color: var(--muted); font-size: .9rem; }
.detail-state { margin-bottom: .5rem; display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }

.chart-wrap { margin: 0 0 1rem; }
.chart {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.chart-legend { font-size: .8rem; color: var(--muted); margin: .4rem 0 0; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.obs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
  min-width: 34rem;
}
.obs-table caption {
  text-align: left;
  color: var(--muted);
  font-size: .8rem;
  padding-bottom: .4rem;
}
.obs-table th, .obs-table td {
  text-align: left;
  padding: .5rem .6rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.obs-table thead th {
  color: var(--muted);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom-color: var(--border-strong);
}
.obs-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.obs-table tbody tr:hover { background: var(--surface); }
.obs-table .pts { font-weight: 700; }
.obs-row--gone td { color: var(--muted); }

/* On a phone a 7-column table would push the points figure off-screen, so each
   observation becomes a stacked block. ARIA roles in the markup keep the table
   semantics that display:block would otherwise strip. */
@media (max-width: 46rem) {
  .obs-table { min-width: 0; display: block; }
  .obs-table caption { display: block; }
  .obs-table thead {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }
  .obs-table tbody { display: block; }
  .obs-table tr {
    display: block;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    padding: .5rem .75rem;
    margin-bottom: .6rem;
  }
  .obs-table td {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    border: 0;
    padding: .2rem 0;
    white-space: normal;
    text-align: right;
  }
  .obs-table td::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    text-align: left;
    flex: 0 0 auto;
  }
  .obs-table .pts { font-size: 1.15rem; }
}

.danger-zone {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}
.del-confirm {
  margin-top: .75rem;
  padding: 1rem;
  border: 1px solid var(--bad);
  background: var(--bad-bg);
  border-radius: var(--radius);
}
.del-confirm .form-actions { margin-top: .75rem; }

/* ---------- disabled inputs (signed out) ---------- */

input:disabled {
  cursor: not-allowed;
  color: var(--muted);
  border-color: var(--border);
  border-style: dashed;
  background: var(--surface);
}
input:disabled::placeholder { color: #5b6675; }
.field:has(input:disabled) label,
.field:has(input:disabled) .help { color: #7c8a9c; }

/* ---------- wider screens ---------- */

@media (min-width: 46rem) {
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .app-title { font-size: 1.35rem; }
  h2 { font-size: 1.4rem; }
}

@media (max-width: 26rem) {
  .field-row { grid-template-columns: 1fr; }
}

@media (prefers-contrast: more) {
  .card, .placeholder, .alert, .callout { border-color: #fff; }
}

.card__actions {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* Per-person grouping. Spans every column so sections never sit side by side. */
.group {
  grid-column: 1 / -1;
}

.group__title {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  flex-wrap: wrap;
  margin: .25rem 0 .75rem;
  font-size: 1rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  padding-bottom: .4rem;
  overflow-wrap: anywhere;
}

.group__count {
  margin-left: auto;
  font-size: .8rem;
  font-weight: 500;
  color: var(--text-dim);
  white-space: nowrap;
}

.group__you {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: .1rem .4rem;
  border-radius: 999px;
  background: var(--accent-dim, #1e3a5f);
  color: var(--accent, #7cc0ff);
}

.card__threshold--best { color: var(--good, #6ee7a0); }

.card__legacy-note {
  font-size: .8rem;
  color: var(--text-dim);
  margin: .35rem 0 0;
}