@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

.msotb-page {
  --msotb-paper: #E7E0CB;
  --msotb-paper-dark: #DCD4B9;
  --msotb-counter: #1B1815;
  --msotb-ink: #2A241D;
  --msotb-ink-fade: #7A7261;
  --msotb-line: #B9AF92;
  --msotb-green: #1F6F4A;
  --msotb-red: #B0402F;
  --msotb-focus: #2F5F8A;
  --msotb-radius: 2px;

  box-sizing: border-box;
  background: var(--msotb-counter);
  background-image: radial-gradient(ellipse at top, rgba(255,255,255,0.04), transparent 60%);
  color: var(--msotb-ink);
  font-family: 'IBM Plex Sans', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 28px 16px 40px;
}
.msotb-page * { box-sizing: border-box; }
.msotb-mono { font-family: 'Space Mono', monospace; }

.msotb-ad-slot {
  width: 100%;
  max-width: 420px;
  min-height: 60px;
  border: 1px dashed rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.35);
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  margin-bottom: 18px;
}
.msotb-ad-bottom { margin-top: 18px; margin-bottom: 10px; }

.msotb-receipt-wrap {
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 18px 34px rgba(0,0,0,0.45));
}

.msotb-receipt {
  background: var(--msotb-paper);
  background-image: repeating-linear-gradient(to bottom, rgba(0,0,0,0.015), rgba(0,0,0,0.015) 1px, transparent 1px, transparent 3px);
  padding: 30px 26px 22px;
  position: relative;
}

.msotb-zigzag {
  height: 13px;
  width: 100%;
  background:
    linear-gradient(135deg, var(--msotb-paper) 50%, transparent 50%) 0 0 / 16px 16px,
    linear-gradient(45deg, var(--msotb-paper) 50%, transparent 50%) 0 0 / 16px 16px;
  background-repeat: repeat-x;
}
.msotb-zigzag.msotb-top { transform: scaleY(-1); }

.msotb-page header { text-align: center; margin-bottom: 6px; }
.msotb-page header h1 {
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.04em;
  line-height: 1.35;
  margin: 0 0 6px;
}
.msotb-tagline { font-size: 12px; color: var(--msotb-ink-fade); margin: 0; letter-spacing: 0.02em; }

.msotb-divider { border: none; height: 0; margin: 18px 0; }
.msotb-divider.msotb-dashed { border-top: 1.5px dashed var(--msotb-line); }
.msotb-divider.msotb-thin { margin: 10px 0; opacity: 0.7; }

.msotb-field { margin-bottom: 4px; }
.msotb-field label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--msotb-ink-fade);
  font-weight: 500;
  margin-bottom: 8px;
}

.msotb-input-wrap {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.35);
  border: 1.5px solid var(--msotb-ink);
  border-radius: var(--msotb-radius);
  padding: 0 12px;
}
.msotb-input-wrap.msotb-small { flex: 1; padding: 0 10px; }
.msotb-input-wrap .msotb-prefix, .msotb-input-wrap .msotb-suffix {
  font-family: 'Space Mono', monospace;
  font-size: 15px;
  color: var(--msotb-ink-fade);
}
.msotb-input-wrap input {
  border: none;
  background: transparent;
  font-family: 'Space Mono', monospace;
  font-size: 20px;
  padding: 11px 8px;
  width: 100%;
  color: var(--msotb-ink);
  outline: none;
}
.msotb-input-wrap.msotb-small input { font-size: 15px; padding: 9px 6px; text-align: right; }
.msotb-input-wrap input::placeholder { color: rgba(42,36,29,0.35); }
.msotb-input-wrap:focus-within { border-color: var(--msotb-focus); box-shadow: 0 0 0 3px rgba(47,95,138,0.15); }

.msotb-stepper {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--msotb-ink);
  border-radius: var(--msotb-radius);
  overflow: hidden;
  background: rgba(255,255,255,0.35);
}
.msotb-stepper input {
  border: none;
  background: transparent;
  text-align: center;
  font-family: 'Space Mono', monospace;
  font-size: 20px;
  width: 100%;
  padding: 11px 4px;
  color: var(--msotb-ink);
  outline: none;
  -moz-appearance: textfield;
}
.msotb-stepper input::-webkit-outer-spin-button,
.msotb-stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.msotb-step-btn {
  background: var(--msotb-paper-dark);
  border: none;
  width: 44px;
  height: 44px;
  font-family: 'Space Mono', monospace;
  font-size: 18px;
  cursor: pointer;
  color: var(--msotb-ink);
  flex-shrink: 0;
}
.msotb-step-btn:hover { background: #cfc5a3; }
.msotb-step-btn:active { transform: scale(0.95); }

.msotb-tip-presets {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 10px;
}
.msotb-tip-btn, .msotb-mode-btn {
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  padding: 11px 6px;
  border: 1.5px solid var(--msotb-ink);
  background: transparent;
  border-radius: var(--msotb-radius);
  cursor: pointer;
  color: var(--msotb-ink);
  transition: background 0.12s, color 0.12s;
}
.msotb-tip-btn:hover, .msotb-mode-btn:hover { background: rgba(42,36,29,0.08); }
.msotb-tip-btn.msotb-active, .msotb-mode-btn.msotb-active { background: var(--msotb-ink); color: var(--msotb-paper); }

.msotb-custom-tip-row { display: flex; align-items: center; gap: 10px; margin: 10px 0 4px; }
.msotb-custom-tip-row .msotb-or {
  font-size: 11px;
  color: var(--msotb-ink-fade);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.msotb-mode-toggle { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.msotb-mode-toggle .msotb-mode-btn { font-size: 12px; padding: 12px 8px; line-height: 1.3; }
.msotb-mode-hint { font-size: 12px; color: var(--msotb-ink-fade); margin: 10px 2px 0; min-height: 32px; }

.msotb-results { margin-top: 4px; }
.msotb-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  padding: 5px 0;
  color: var(--msotb-ink-fade);
}
.msotb-line span:last-child { transition: opacity 0.15s; }
.msotb-line.msotb-total { color: var(--msotb-ink); font-weight: 700; font-size: 17px; padding-top: 8px; }
.msotb-line.msotb-per-person { color: var(--msotb-green); font-weight: 700; font-size: 22px; padding: 6px 0 2px; }
.msotb-line.msotb-per-person span:first-child {
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--msotb-ink-fade);
  max-width: 55%;
}
.msotb-line.msotb-per-person.msotb-secondary { color: var(--msotb-red); font-size: 15px; font-weight: 700; padding-top: 0; }
.msotb-line.msotb-per-person.msotb-secondary span:first-child { font-size: 11px; font-weight: 500; color: var(--msotb-ink-fade); max-width: 62%; }

.msotb-footer-strip { text-align: center; padding-top: 16px; }
.msotb-footer-strip span {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--msotb-ink-fade);
  text-transform: uppercase;
}

@media (max-width: 400px) {
  .msotb-page header h1 { font-size: 17px; }
  .msotb-line.msotb-per-person { font-size: 19px; }
}

@media (prefers-reduced-motion: no-preference) {
  .msotb-pulse { animation: msotb-pulse 0.28s ease; }
}
@keyframes msotb-pulse {
  0% { opacity: 0.3; transform: translateY(1px); }
  100% { opacity: 1; transform: translateY(0); }
}