/* fees.kas — receipt/till-printer energy. Dark room, amber thermal glow.
   Distinct from kaspulse (teal/violet) and kascov: accent is till-amber. */

:root {
  --bg: #0d0b08;
  --bg2: #14100b;
  --paper: #1b1712;       /* the receipt card */
  --paper-edge: #2b241a;
  --ink: #f2ead9;         /* warm off-white "thermal print" */
  --ink-dim: #a0947e;
  --ink-faint: #6d6353;
  --accent: #ffb02e;      /* till-amber */
  --accent-dim: #cc8a1c;
  --green: #8fe388;
  --red: #ff7a6b;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { color-scheme: dark; }

body {
  background:
    radial-gradient(1100px 500px at 50% -10%, rgba(255, 176, 46, 0.07), transparent 60%),
    var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.num { font-variant-numeric: tabular-nums; }

/* ---------- chrome ---------- */

.nav {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 20px;
  max-width: 760px;
  margin: 0 auto;
  width: 100%;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.02em;
}
.brand:hover { text-decoration: none; }
.brand svg { color: var(--accent); flex: none; }
.brand-dot { color: var(--accent); }
.nav-tag { color: var(--ink-faint); font-size: 12px; }

main {
  flex: 1;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 12px 16px 48px;
}

.foot {
  text-align: center;
  color: var(--ink-faint);
  font-size: 12px;
  padding: 22px 16px 34px;
}
.foot a { color: var(--ink-dim); }
.foot a:hover { color: var(--accent); }

/* ---------- landing ---------- */

.hero { text-align: center; padding: 34px 0 10px; }
.hero h1 {
  font-size: clamp(26px, 6vw, 40px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .sub {
  color: var(--ink-dim);
  margin: 14px auto 0;
  max-width: 520px;
  font-size: 14px;
}

.addr-form { margin: 28px auto 0; max-width: 620px; display: flex; gap: 8px; }
.addr-input {
  flex: 1;
  min-width: 0;
  background: var(--bg2);
  border: 1px solid var(--paper-edge);
  border-radius: 10px;
  color: var(--ink);
  font: 500 14px var(--mono);
  padding: 13px 14px;
  outline: none;
}
.addr-input::placeholder { color: var(--ink-faint); }
.addr-input:focus { border-color: var(--accent-dim); }
.addr-go {
  background: var(--accent);
  color: #17110a;
  border: 0;
  border-radius: 10px;
  font: 800 14px var(--mono);
  padding: 0 20px;
  cursor: pointer;
  white-space: nowrap;
}
.addr-go:hover { filter: brightness(1.08); }
.form-err { color: var(--red); font-size: 12.5px; margin-top: 10px; min-height: 1.2em; }

.demo-row { margin-top: 14px; color: var(--ink-faint); font-size: 12.5px; }
.demo-chip {
  display: inline-block;
  background: transparent;
  border: 1px dashed var(--accent-dim);
  color: var(--accent);
  border-radius: 999px;
  font: 500 12.5px var(--mono);
  padding: 5px 14px;
  cursor: pointer;
  margin-left: 6px;
}
.demo-chip:hover { background: rgba(255, 176, 46, 0.08); }

.sec { margin: 44px auto 0; max-width: 620px; }
.sec h2 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 14px;
}
.steps { list-style: none; counter-reset: step; }
.steps li {
  counter-increment: step;
  display: flex;
  gap: 14px;
  padding: 9px 0;
  color: var(--ink-dim);
  font-size: 13.5px;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  color: var(--accent);
  font-weight: 700;
  flex: none;
}
.steps li strong { color: var(--ink); font-weight: 700; }
.method-p { color: var(--ink-dim); font-size: 13px; }
.method-p + .method-p { margin-top: 10px; }

/* ---------- loading ---------- */

.loading { text-align: center; padding: 70px 0 40px; }
.printer {
  width: 74px; height: 30px;
  margin: 0 auto;
  border: 2px solid var(--accent-dim);
  border-radius: 8px 8px 4px 4px;
  position: relative;
}
.printer::after {
  content: '';
  position: absolute;
  left: 10px; right: 10px; top: 26px;
  height: 34px;
  background:
    repeating-linear-gradient(180deg, var(--paper-edge) 0 5px, transparent 5px 10px),
    var(--paper);
  border: 1px solid var(--paper-edge);
  border-top: 0;
  animation: feed 1.6s ease-in-out infinite;
  transform-origin: top;
}
@keyframes feed { 0%,100% { transform: scaleY(0.55); opacity: .7; } 50% { transform: scaleY(1); opacity: 1; } }
.load-line {
  margin-top: 44px;
  color: var(--ink-dim);
  font-size: 14px;
  min-height: 1.6em;
}
.load-hint { margin-top: 10px; color: var(--ink-faint); font-size: 12px; }
.load-addr {
  margin-top: 26px;
  color: var(--ink-faint);
  font-size: 12px;
  word-break: break-all;
  max-width: 460px;
  margin-left: auto; margin-right: auto;
}

/* ---------- errors ---------- */

.errbox { text-align: center; padding: 64px 0 30px; }
.errbox .err-glyph { font-size: 40px; }
.errbox h2 { font-size: 20px; font-weight: 800; margin-top: 16px; }
.errbox p { color: var(--ink-dim); font-size: 13.5px; margin-top: 10px; max-width: 440px; margin-left: auto; margin-right: auto; }
.errbox .err-addr { color: var(--ink-faint); font-size: 12px; word-break: break-all; margin-top: 14px; }
.err-back {
  display: inline-block;
  margin-top: 24px;
  border: 1px solid var(--paper-edge);
  border-radius: 10px;
  padding: 10px 18px;
  color: var(--ink);
  font-size: 13px;
}
.err-back:hover { border-color: var(--accent-dim); text-decoration: none; }

/* ---------- the receipt ---------- */

.receipt-wrap { display: flex; flex-direction: column; align-items: center; padding-top: 14px; }

.receipt {
  width: 100%;
  max-width: 430px;
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
  padding: 26px 22px 30px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  position: relative;
}
/* torn bottom edge */
.receipt::after {
  content: '';
  position: absolute;
  left: -1px; right: -1px; bottom: -12px;
  height: 12px;
  background: var(--paper);
  border-left: 1px solid var(--paper-edge);
  border-right: 1px solid var(--paper-edge);
  clip-path: polygon(0 0, 100% 0, 100% 20%,
    97.5% 100%, 95% 20%, 92.5% 100%, 90% 20%, 87.5% 100%, 85% 20%, 82.5% 100%,
    80% 20%, 77.5% 100%, 75% 20%, 72.5% 100%, 70% 20%, 67.5% 100%, 65% 20%,
    62.5% 100%, 60% 20%, 57.5% 100%, 55% 20%, 52.5% 100%, 50% 20%, 47.5% 100%,
    45% 20%, 42.5% 100%, 40% 20%, 37.5% 100%, 35% 20%, 32.5% 100%, 30% 20%,
    27.5% 100%, 25% 20%, 22.5% 100%, 20% 20%, 17.5% 100%, 15% 20%, 12.5% 100%,
    10% 20%, 7.5% 100%, 5% 20%, 2.5% 100%, 0 20%);
}

.r-head { text-align: center; }
.r-brand { font-size: 19px; font-weight: 800; letter-spacing: 0.06em; }
.r-brand .brand-dot { color: var(--accent); }
.r-title {
  color: var(--ink-dim);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  margin-top: 5px;
}
.r-addr {
  color: var(--ink-faint);
  font-size: 11px;
  word-break: break-all;
  margin-top: 10px;
}

.r-rule {
  border: 0;
  border-top: 1px dashed var(--paper-edge);
  margin: 16px 0;
}

.r-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-size: 12.5px;
  padding: 3px 0;
}
.r-row .k { color: var(--ink-dim); text-transform: uppercase; letter-spacing: 0.08em; font-size: 11px; }
.r-row .v { font-weight: 700; }

.r-fees { text-align: center; padding: 4px 0 2px; }
.r-fees .fee-label {
  color: var(--ink-dim);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}
.r-fees .fee-kas {
  font-size: clamp(28px, 8vw, 38px);
  font-weight: 800;
  color: var(--accent);
  line-height: 1.15;
  margin-top: 6px;
  word-break: break-all;
}
.r-fees .fee-usd { color: var(--ink-dim); font-size: 14px; font-weight: 700; margin-top: 2px; }

.r-vs-label {
  text-align: center;
  color: var(--ink-dim);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin: 2px 0 10px;
}

.dunk { padding: 8px 0; }
.dunk + .dunk { border-top: 1px dotted var(--paper-edge); }
.dunk .d-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}
.dunk .d-chain { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink); }
.dunk .d-cost { color: var(--ink-dim); font-size: 13px; font-weight: 700; }
.dunk .d-mult { text-align: right; font-weight: 800; color: var(--green); font-size: 17px; line-height: 1.25; }
.dunk .d-mult .d-more { color: var(--ink-faint); font-weight: 500; font-size: 11px; margin-left: 4px; }

.dunk.dunk-big { padding: 12px 0; }
.dunk.dunk-big .d-mult { font-size: clamp(30px, 9vw, 42px); color: var(--green); }
.dunk.dunk-big .d-mult .d-more { font-size: 12px; }

.r-note { color: var(--ink-dim); font-size: 12px; }
.r-note.capped { color: var(--accent); }

.r-method { color: var(--ink-faint); font-size: 10.5px; line-height: 1.6; }
.r-meta {
  display: flex;
  justify-content: space-between;
  color: var(--ink-faint);
  font-size: 10.5px;
  margin-top: 14px;
}

.r-barcode {
  margin-top: 16px;
  height: 30px;
  background: repeating-linear-gradient(90deg,
    var(--ink-faint) 0 2px, transparent 2px 5px,
    var(--ink-faint) 5px 6px, transparent 6px 11px,
    var(--ink-faint) 11px 14px, transparent 14px 17px);
  opacity: 0.5;
}

/* below the receipt */
.r-actions { margin-top: 30px; display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.share-btn {
  background: var(--accent);
  color: #17110a;
  border: 0;
  border-radius: 10px;
  font: 800 14px var(--mono);
  padding: 12px 22px;
  cursor: pointer;
}
.share-btn:hover { filter: brightness(1.08); }
.again-btn {
  background: transparent;
  border: 1px solid var(--paper-edge);
  color: var(--ink-dim);
  border-radius: 10px;
  font: 500 13px var(--mono);
  padding: 12px 18px;
  cursor: pointer;
}
.again-btn:hover { border-color: var(--accent-dim); color: var(--ink); }
.dl-btn {
  background: transparent;
  border: 1px solid var(--accent-dim);
  color: var(--accent);
  border-radius: 10px;
  font: 700 13px var(--mono);
  padding: 12px 20px;
  cursor: pointer;
}
.dl-btn:hover { background: rgba(255, 176, 46, 0.09); }
.dl-btn:disabled { opacity: 0.6; cursor: default; }
.shot-cue { margin-top: 14px; color: var(--ink-faint); font-size: 12px; text-align: center; }

/* ---------- toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  background: var(--paper);
  border: 1px solid var(--accent-dim);
  color: var(--ink);
  font-size: 13px;
  border-radius: 10px;
  padding: 10px 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  z-index: 10;
}

@media (max-width: 480px) {
  .addr-form { flex-direction: column; }
  .addr-go { padding: 13px 20px; }
  .nav-tag { display: none; }
}