/* SystemFlow - Flow Credits wallet.
   The wallet is an instrument, not a billing page. The balance is a dial with
   a ticked rim that empties as credits burn, next to a telemetry column that
   reads out what is drawing on it right now. Rates and ledger below are
   monospaced columns - the same register as the app's own request log.

   Why a dial: this product's whole subject is watching a system's numbers move
   under load. A metered balance belongs in that language, not in a card with a
   progress bar.

   Motion is transform/opacity/stroke-dashoffset only. The one ambient
   animation is the live ring, and it exists only while credits are moving. */

/* ══════════════════════ header chip ══════════════════════ */

.sf-credit-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--border2);
  background: var(--surface2);
  color: var(--text-sec);
  cursor: pointer;
  font: 500 12px/1 var(--sans);
  white-space: nowrap;
  transition: background 0.16s var(--ease-out), border-color 0.16s, color 0.16s;
}
.sf-credit-chip:hover { color: var(--text); background: var(--surface3); border-color: var(--border3); }
.sf-credit-chip:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sf-credit-chip b {
  font: 650 12.5px/1 var(--mono);
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.sf-credit-chip span { color: var(--text-dim); font-size: 11px; }
.sf-credit-chip svg { color: var(--accent); flex-shrink: 0; }

/* Running low is stated in colour once, not animated: a balance that pulses in
   the corner of the screen all day is an alarm nobody can turn off. */
.sf-credit-chip[data-low="true"] {
  border-color: color-mix(in srgb, var(--amber) 45%, transparent);
  background: color-mix(in srgb, var(--amber) 10%, transparent);
}
.sf-credit-chip[data-low="true"] svg,
.sf-credit-chip[data-low="true"] b { color: var(--amber); }

.sf-credit-chip[data-live="true"] { border-color: color-mix(in srgb, var(--accent) 42%, transparent); }
.sf-chip-pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  animation: wal-pulse 1.9s ease-in-out infinite;
}
@keyframes wal-pulse {
  0%, 100% { opacity: 1;    box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 50%, transparent); }
  70%      { opacity: 0.75; box-shadow: 0 0 0 5px transparent; }
}

/* Charges float off the number so a spend is seen, not inferred. */
.sf-chip-deltas, .wal-deltas { position: absolute; left: 50%; top: 0; pointer-events: none; }
.sf-chip-deltas i, .wal-deltas i {
  position: absolute; left: 0; top: 0;
  font: 650 11px/1 var(--mono);
  font-style: normal;
  white-space: nowrap;
  animation: wal-float 1.4s var(--ease-out) forwards;
}
.sf-chip-deltas i.neg, .wal-deltas i.neg { color: var(--amber); }
.sf-chip-deltas i.pos, .wal-deltas i.pos { color: var(--green); }
@keyframes wal-float {
  0%   { opacity: 0; transform: translateY(4px); }
  22%  { opacity: 1; transform: translateY(-8px); }
  100% { opacity: 0; transform: translateY(-26px); }
}

@media (max-width: 900px) { .sf-credit-chip span { display: none; } }

/* ══════════════════════ dialog shell ══════════════════════ */

.wal-overlay {
  position: fixed;
  inset: 0;
  z-index: 440;
  display: grid;
  place-items: center;
  padding: 24px;
  overflow-y: auto;
  background: rgba(0, 0, 0, 0.58);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  font-family: var(--sans);
  color: var(--text);
  animation: wal-fade 0.22s cubic-bezier(0.4, 0, 0.2, 1) both;
}
html.light .wal-overlay, [data-theme="light"] .wal-overlay { background: rgba(20, 20, 24, 0.38); }
@keyframes wal-fade { from { opacity: 0; } }

.wal-card {
  position: relative;
  display: flex;
  flex-direction: column;
  width: min(820px, 96vw);
  max-height: 92vh;
  padding: 26px 30px 22px;
  border-radius: 20px;
  border: 1px solid var(--border2);
  background: var(--surface);
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
  animation: wal-pop 0.34s cubic-bezier(0.34, 1.4, 0.64, 1) both;
}
html.light .wal-card, [data-theme="light"] .wal-card {
  box-shadow: 0 40px 90px rgba(20, 20, 24, 0.22), inset 0 1px 0 #fff;
}
@keyframes wal-pop {
  0%   { opacity: 0; transform: scale(0.95) translateY(12px); }
  100% { opacity: 1; transform: none; }
}

/* Faint graph paper behind the instrument, masked out before the ledger.
   It reads as the panel the gauge is mounted on, not as decoration. */
.wal-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 300px;
  background:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 26px 26px, 26px 26px;
  -webkit-mask-image: radial-gradient(120% 100% at 26% 34%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 100% at 26% 34%, #000 0%, transparent 72%);
  opacity: 0.9;
  pointer-events: none;
}
.wal-card > * { position: relative; }

.wal-x {
  position: absolute;
  top: 14px; right: 14px;
  z-index: 5;
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border: 1px solid var(--border2);
  border-radius: 9px;
  background: var(--surface2);
  color: var(--text-sec);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.wal-x:hover { color: var(--text); border-color: var(--border3); background: var(--surface3); }

.wal-head { display: flex; align-items: center; }
.wal-badge {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 10px 5px 8px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
  background: color-mix(in srgb, var(--accent) 11%, transparent);
  color: var(--accent);
  font: 700 9.5px/1 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* ══════════════════════ the instrument ══════════════════════ */

.wal-inst {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 30px;
  align-items: center;
  padding: 18px 0 22px;
}
@media (max-width: 640px) {
  .wal-inst { grid-template-columns: 1fr; justify-items: center; gap: 18px; }
}

/* ── dial ───────────────────────────────────────────────────────────────── */

.wal-dial-cell { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.wal-dial-cap {
  font: 500 10px/1 var(--mono);
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.wal-dial { position: relative; width: 210px; height: 210px; }
/* Direct child only - the sparkline is an svg inside this box too, and a
   descendant selector would stretch it to the dial's size. */
.wal-dial > svg { width: 100%; height: 100%; display: block; }

.wal-dial-ticks line {
  stroke: var(--text);
  stroke-width: 1;
  opacity: 0.16;
}
.wal-dial-ticks line.maj { stroke-width: 1.6; opacity: 0.3; }

.wal-dial-track {
  fill: none;
  stroke: color-mix(in srgb, var(--text) 10%, transparent);
  stroke-width: 8;
}
.wal-dial-arc {
  fill: none;
  stroke: var(--accent);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.6s var(--ease-out), stroke 0.3s;
}
.wal-dial[data-level="low"]  .wal-dial-arc { stroke: var(--amber); }
.wal-dial[data-level="crit"] .wal-dial-arc { stroke: var(--red); }

/* Live: a soft ring breathes behind the arc while credits are moving. */
.wal-dial[data-live="true"]::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  box-shadow: 0 0 16px 1px color-mix(in srgb, var(--accent) 18%, transparent);
  animation: wal-breathe 2.8s ease-in-out infinite;
  pointer-events: none;
}
@keyframes wal-breathe { 0%, 100% { opacity: 0.3; } 50% { opacity: 0.75; } }

.wal-dial-mid {
  position: absolute;
  inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px;
}
.wal-dial-mid > b {
  font: 700 42px/1 var(--sans);
  letter-spacing: -0.045em;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.wal-dial[data-level="low"]  .wal-dial-mid > b { color: var(--amber); }
.wal-dial[data-level="crit"] .wal-dial-mid > b { color: var(--red); }
.wal-dial-mid > span {
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.wal-spark {
  display: block;
  width: 92px; height: 20px;
  margin-top: 7px;
  color: color-mix(in srgb, var(--accent) 70%, transparent);
}
.wal-dial .wal-deltas { left: 50%; top: 30%; }

/* ── telemetry ──────────────────────────────────────────────────────────── */

.wal-tele {
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-width: 0;
  padding-left: 22px;
  border-left: 1px solid var(--border);
}
@media (max-width: 640px) {
  .wal-tele { border-left: 0; padding-left: 0; width: 100%; }
}

.wal-tele-status {
  display: inline-flex; align-items: center; gap: 8px;
  font: 700 9.5px/1 var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.wal-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--text-muted);
  flex: none;
}
.wal-tele[data-state="live"] .wal-dot { background: var(--accent); animation: wal-pulse 1.9s ease-in-out infinite; }
.wal-tele[data-state="live"] .wal-tele-status { color: var(--accent); }
.wal-tele[data-state="held"] .wal-dot { background: var(--amber); }
.wal-tele[data-state="held"] .wal-tele-status { color: var(--amber); }

.wal-tele-feat { display: flex; align-items: center; gap: 8px; color: var(--text-dim); }
.wal-tele-feat code {
  font: 500 12px/1 var(--mono);
  color: var(--text-sec);
  letter-spacing: -0.01em;
}

.wal-tele-rate {
  font: 700 30px/1 var(--sans);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}
.wal-tele-rate em {
  font: 500 12px/1 var(--mono);
  font-style: normal;
  color: var(--text-dim);
  letter-spacing: 0;
}
/* The same rate said the other way round, because "1 credit every 7s" is what
   a person watching a balance drop is actually asking. */
.wal-tele-rate span {
  display: block;
  margin-top: 5px;
  font: 400 11px/1 var(--sans);
  letter-spacing: 0;
  color: var(--text-dim);
}

/* Load multiplier. Amber past the halfway mark to the cap: at that point the
   run is expensive enough that seeing it should feel like a warning. */
.wal-load {
  margin-left: auto;
  padding: 3px 7px;
  border-radius: 999px;
  font: 700 9.5px/1 var(--mono);
  font-style: normal;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}
.wal-load[data-hot="true"] {
  color: var(--amber);
  background: color-mix(in srgb, var(--amber) 14%, transparent);
  border-color: color-mix(in srgb, var(--amber) 34%, transparent);
}
.wal-tele[data-state="held"] .wal-tele-rate { color: var(--amber); }

.wal-tele-bar {
  height: 3px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text) 11%, transparent);
  overflow: hidden;
}
.wal-tele-bar i {
  display: block; height: 100%; width: 100%;
  transform-origin: left center;
  background: var(--accent);
  transition: transform 0.9s linear;
}
.wal-tele[data-state="held"] .wal-tele-bar i { background: var(--amber); transition: none; }

.wal-tele-line {
  display: flex; align-items: baseline; gap: 10px;
  font: 400 11.5px/1.5 var(--sans);
  color: var(--text-dim);
}
.wal-tele-line span { flex: none; }
.wal-tele-line::after {
  content: "";
  flex: 1;
  height: 1px;
  margin-bottom: 3px;
  background: repeating-linear-gradient(90deg, var(--border3) 0 1px, transparent 1px 5px);
  opacity: 0.7;
}
.wal-tele-line b {
  font: 600 12px/1 var(--mono);
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.wal-tele-idle {
  margin: 0;
  max-width: 44ch;
  font: 400 12px/1.6 var(--sans);
  color: var(--text-dim);
}

.wal-tele-runway {
  display: flex; flex-direction: column; gap: 6px;
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

/* ══════════════════════ rates + ledger ══════════════════════ */

.wal-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 26px;
  min-height: 0;
  flex: 1;
}
@media (max-width: 640px) { .wal-grid { grid-template-columns: 1fr; gap: 18px; } }

.wal-col { display: flex; flex-direction: column; min-height: 0; }
.wal-col h3 {
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 6px;
  font: 700 9.5px/1 var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.wal-col h3::after { content: ""; flex: 1; height: 1px; background: var(--border); }

/* ── rates: dot leaders, ids in mono ────────────────────────────────────── */

.wal-rates { list-style: none; margin: 0; padding: 0; }
.wal-rates li {
  display: flex; align-items: baseline; gap: 8px;
  padding: 7px 0;
}
.wal-rates code {
  font: 500 11.5px/1.3 var(--mono);
  color: var(--text-sec);
  white-space: nowrap;
}
.wal-rates li > i {
  flex: 1;
  height: 1px;
  align-self: center;
  background: repeating-linear-gradient(90deg, var(--border3) 0 1px, transparent 1px 5px);
  opacity: 0.7;
}
.wal-rates em {
  font: 600 9.5px/1 var(--mono);
  font-style: normal;
  color: var(--accent);
  padding: 3px 6px;
  border-radius: 5px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  white-space: nowrap;
}
.wal-rates b {
  min-width: 22px;
  text-align: right;
  font: 650 13px/1 var(--mono);
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.wal-fine {
  margin: auto 0 0;
  padding-top: 16px;
  max-width: 44ch;
  font: 400 11px/1.7 var(--sans);
  color: var(--text-muted);
}
.wal-fine b { font-weight: 650; color: var(--text-dim); font-family: var(--mono); }

/* ── ledger: time, label, amount, balance ───────────────────────────────── */

.wal-ledger {
  flex: 1;
  min-height: 120px;
  max-height: 232px;
  overflow-y: auto;
  overscroll-behavior: contain;
  margin-right: -8px;
  padding-right: 8px;
}
.wal-ledger::-webkit-scrollbar { width: 6px; }
.wal-ledger::-webkit-scrollbar-thumb { background: var(--border3); border-radius: 999px; }

.wal-day-k {
  display: flex; align-items: center; gap: 10px;
  position: sticky; top: 0;
  padding: 7px 0 5px;
  background: var(--surface);
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  z-index: 1;
}
.wal-day-k::after { content: ""; flex: 1; height: 1px; background: var(--border); }

.wal-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 46px 40px;
  align-items: baseline;
  gap: 8px;
  padding: 5px 6px 5px 0;
  margin-right: -6px;
  border-radius: 6px;
  transition: background 0.14s;
}
.wal-row:hover { background: var(--surface2); }
.wal-row time { font: 400 10.5px/1.4 var(--mono); color: var(--text-muted); }
.wal-row span {
  font: 400 12px/1.4 var(--sans);
  color: var(--text-sec);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.wal-row b {
  text-align: right;
  font: 650 12px/1.4 var(--mono);
  font-variant-numeric: tabular-nums;
}
.wal-row b.pos { color: var(--green); }
.wal-row b.neg { color: var(--text-sec); }
.wal-row em {
  text-align: right;
  font: 400 10.5px/1.4 var(--mono);
  font-style: normal;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.wal-empty { margin: 0; padding: 18px 0; font: 400 12px/1.5 var(--sans); color: var(--text-muted); }

/* ══════════════════════ notice + top up ══════════════════════ */

.wal-note {
  margin: 0 0 16px;
  padding: 10px 13px;
  border-radius: 10px;
  font: 500 12px/1.5 var(--sans);
  border: 1px solid var(--border);
}
.wal-note.ok   { color: var(--green); background: color-mix(in srgb, var(--green) 12%, transparent); border-color: color-mix(in srgb, var(--green) 32%, transparent); }
.wal-note.warn { color: var(--amber); background: color-mix(in srgb, var(--amber) 12%, transparent); border-color: color-mix(in srgb, var(--amber) 32%, transparent); }
.wal-note.err  { color: var(--red);   background: color-mix(in srgb, var(--red) 12%, transparent);   border-color: color-mix(in srgb, var(--red) 32%, transparent); }

.wal-topup {
  display: flex; align-items: center; gap: 10px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.wal-redeem { display: flex; gap: 8px; flex: 1; min-width: 0; max-width: 340px; }
.wal-input {
  flex: 1; min-width: 0;
  height: 34px;
  padding: 0 12px;
  border-radius: 9px;
  border: 1px solid var(--border2);
  background: var(--surface2);
  color: var(--text);
  font: 500 12.5px/1 var(--mono);
  letter-spacing: 0.04em;
  outline: none;
  transition: border-color 0.16s, box-shadow 0.16s;
}
.wal-input:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent);
}
.wal-input::placeholder { color: var(--text-muted); }

.wal-btn {
  height: 34px;
  padding: 0 15px;
  border-radius: 9px;
  border: 1px solid var(--border2);
  background: var(--surface2);
  color: var(--text);
  font: 600 12.5px/1 var(--sans);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.16s, opacity 0.16s, filter 0.16s;
}
.wal-btn.primary { background: var(--accent); border-color: transparent; color: var(--accent-contrast, #fff); }
.wal-btn.primary:hover:not(:disabled) { filter: brightness(1.08); }
.wal-btn:hover:not(:disabled) { background: var(--surface3); }
.wal-btn.primary:hover:not(:disabled) { background: var(--accent); }
.wal-btn:disabled { opacity: 0.4; cursor: default; }

.wal-plans {
  display: inline-flex; align-items: center; gap: 6px;
  margin-left: auto;
  height: 34px;
  padding: 0 4px 0 10px;
  border: 0;
  background: transparent;
  color: var(--text-sec);
  font: 600 12.5px/1 var(--sans);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s;
}
.wal-plans:hover { color: var(--accent); }
.wal-plans svg { transition: transform 0.18s var(--ease-out); }
.wal-plans:hover svg { transform: translateX(2px); }

@media (prefers-reduced-motion: reduce) {
  .wal-overlay, .wal-card { animation: none; }
  .sf-credit-chip, .wal-btn, .wal-row, .wal-plans svg { transition: none; }
  .sf-chip-pulse, .wal-dot, .wal-dial[data-live="true"]::after { animation: none; }
  .wal-tele-bar i, .wal-dial-arc { transition: none; }
}