:root {
  --ink: #0B0D10;
  --ink-2: #14181F;
  --ink-3: #1C222B;
  --line: #262D38;
  --text: #F2F4F7;
  --muted: #7C8794;
  --debt: #F5A524;
  --credit: #34D399;
  --accent: var(--debt);
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font: 400 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

main {
  max-width: 480px;
  margin: 0 auto;
  padding: max(18px, env(safe-area-inset-top)) 18px calc(40px + env(safe-area-inset-bottom));
  display: grid;
  gap: 18px;
}

h2 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}

/* ---- the card ---------------------------------------------------------- */

.card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 26px 20px 22px;
  text-align: center;
  background:
    radial-gradient(120% 80% at 50% 8%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%),
    var(--ink-2);
  transition: background .3s ease;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .28em;
  color: var(--muted);
}

.balance {
  margin: 0;
  font-size: clamp(52px, 17vw, 76px);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.balance.unknown {
  font-size: clamp(26px, 7.6vw, 34px);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--muted);
}

.headline {
  margin: 12px 0 0;
  font-size: clamp(15px, 4.4vw, 19px);
  font-weight: 500;
  color: var(--text);
  text-wrap: balance;
}

.bars {
  display: grid;
  grid-template-columns: repeat(14, 1fr);
  align-items: center;
  gap: 4px;
  height: 116px;
  margin: 22px 0 16px;
  position: relative;
}

.bars::before {
  content: "";
  position: absolute;
  inset-inline: -6px;
  top: 34%;
  border-top: 1px dashed var(--line);
}

.card.empty .bars { height: 44px; margin: 18px 0 12px; }

.bar {
  position: relative;
  height: 100%;
}

.bar i {
  position: absolute;
  left: 0;
  right: 0;
  border-radius: 5px;
  background: var(--credit);
  display: block;
}

.bar.debt i { background: var(--debt); }
.bar.empty i { background: #1E242D; }

.stats {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.stats b { color: var(--text); font-weight: 600; }

/* ---- rate chips -------------------------------------------------------- */

.rates { display: flex; gap: 10px; }

.chip {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--ink-2);
  font-size: 13px;
  color: var(--muted);
}

.chip select {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text);
  font: 600 15px/1 system-ui, -apple-system, sans-serif;
  text-align: right;
  padding: 2px 0;
}

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

.btn {
  width: 100%;
  min-height: 56px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--ink-3);
  color: var(--text);
  font: 600 17px/1 system-ui, -apple-system, sans-serif;
  cursor: pointer;
  transition: transform .08s ease, filter .15s ease;
}

.btn:active { transform: scale(.985); }

.btn.primary {
  border-color: transparent;
  background: var(--accent);
  color: #0B0D10;
}

/* The week is a second helping, never a competing call to action. */
.link.wide {
  display: block;
  width: 100%;
  padding: 4px 0 2px;
  margin-top: -8px;
  text-align: center;
  font-size: 14px;
  min-height: 32px;
}

.link[disabled] { opacity: .4; cursor: default; text-decoration: none; }

/* A dead primary button should not shout. */
.btn[disabled] { cursor: default; }
.btn.primary[disabled] {
  background: var(--ink-3);
  border-color: var(--line);
  color: var(--muted);
}

.link {
  border: 0;
  background: none;
  padding: 0;
  color: var(--muted);
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}

.share-note {
  margin: -6px 0 0;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
}

/* ---- log form ---------------------------------------------------------- */

.log, .recent {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--ink-2);
  padding: 18px;
}

.datestep {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.step {
  width: 48px;
  height: 48px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--ink-3);
  color: var(--text);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.dateface {
  position: relative;
  flex: 1;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--ink-3);
  display: grid;
  place-items: center;
  font-weight: 600;
  overflow: hidden;
}

/* Native picker on tap, our own label on screen. */
.dateface input {
  position: absolute;
  inset: 0;
  opacity: 0;
  width: 100%;
  height: 100%;
  border: 0;
  cursor: pointer;
}

.times {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 12px;
  margin-bottom: 14px;
}

.field {
  display: grid;
  gap: 6px;
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

.field input {
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--ink-3);
  color: var(--text);
  font: 600 20px/1 system-ui, -apple-system, sans-serif;
  padding: 0 12px;
  text-align: center;
}

.duration {
  grid-column: 1 / -1;
  margin: 0;
  text-align: center;
  font-size: 14px;
  color: var(--muted);
}

.duration b { color: var(--text); }

.hint {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
  min-height: 19px;
}

.hint.ok { color: var(--credit); }

/* ---- ledger list ------------------------------------------------------- */

.recent ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }

.recent li {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 11px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.recent li:last-child { border-bottom: 0; }
.recent li.blank { color: var(--muted); }

.recent .when {
  color: var(--muted);
  font-size: 13.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.recent .when b { color: var(--text); font-weight: 600; }
.recent .slept { font-variant-numeric: tabular-nums; font-weight: 600; }
.recent .delta { font-variant-numeric: tabular-nums; font-size: 13px; min-width: 62px; text-align: right; }
.recent .delta.debt { color: var(--debt); }
.recent .delta.credit { color: var(--credit); }

.recent .edit {
  border: 0; background: none; padding: 0; text-align: left;
  color: inherit; font: inherit; cursor: pointer;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 12.5px;
}

footer p { margin: 4px 0; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}