/* DMB calculator — styled as a physical calculator device. Tokens come from templatemo-622-clearwave.css. */

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

.dmb-tool {
  margin: 0 0 44px;
}

.dmb-device {
  max-width: 520px;
  margin: 0 auto;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow-lg);
}

/* ── Display ── */

.dmb-display {
  position: relative;
  overflow: hidden;
  min-height: 176px;
  padding: 24px 22px;
  border-radius: 20px;
  background: linear-gradient(155deg, #33403f 0%, #232d2e 100%);
}

.dmb-display::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(115% 85% at 88% -12%, rgba(90, 175, 163, 0.2) 0%, rgba(90, 175, 163, 0.08) 40%, rgba(90, 175, 163, 0) 72%);
}

.dmb-display-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 22px;
}

@media (min-width: 420px) {
  .dmb-display-grid.is-split {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }
}

.dmb-metric {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.dmb-metric[hidden],
.dmb-display-meta[hidden],
.dmb-display-empty[hidden] {
  display: none;
}

.dmb-metric-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: rgba(223, 242, 239, 0.58);
}

.dmb-metric-value {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-size: clamp(2.1rem, 9vw, 2.7rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
  color: #dff2ef;
}

.dmb-metric-unit {
  font-size: 1.05rem;
  font-weight: 600;
  color: rgba(223, 242, 239, 0.55);
}

.dmb-display-empty {
  position: relative;
  z-index: 1;
  max-width: 26ch;
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(223, 242, 239, 0.62);
}

.dmb-display-meta {
  position: relative;
  z-index: 1;
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid rgba(223, 242, 239, 0.14);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: rgba(223, 242, 239, 0.6);
}

.dmb-display-meta strong {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: rgba(223, 242, 239, 0.9);
}

/* ── Presets ── */

.dmb-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.dmb-chip {
  padding: 8px 14px;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-2);
  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
}

.dmb-chip:hover {
  border-color: var(--accent-border);
  color: var(--accent-mid);
}

.dmb-chip[aria-pressed='true'] {
  background: var(--accent-ghost);
  border-color: var(--accent-border);
  color: var(--accent-mid);
}

/* ── Input rows ── */

.dmb-fields {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.dmb-field {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1.5px solid transparent;
  border-radius: 14px;
  background: var(--surface-soft);
  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.dmb-field:focus-within {
  background: var(--surface);
  border-color: var(--accent-border);
  box-shadow: 0 0 0 4px var(--accent-ghost);
}

.dmb-field-label {
  flex: 1;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-2);
}

.dmb-field input {
  width: 5.5ch;
  padding: 0;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 1.15rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--text-1);
  outline: none;
}

.dmb-field input::placeholder {
  color: var(--text-3);
  font-weight: 400;
}

.dmb-field-unit {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-3);
}

/* ── Keypad ── */

.dmb-keypad {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 16px;
}

.dmb-key {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-soft);
  font-family: inherit;
  font-size: 1.2rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-1);
  transition:
    background 0.2s ease,
    transform 0.12s ease;
}

.dmb-key:hover {
  background: var(--bg-alt);
}

.dmb-key:active {
  transform: scale(0.96);
}

.dmb-key--fn {
  font-size: 0.95rem;
  color: var(--text-2);
}

.dmb-key--wide {
  grid-column: span 2;
}

.dmb-key--accent {
  grid-row: span 2;
  border-color: transparent;
  background: var(--accent);
  font-size: 0.95rem;
  color: #fff;
}

.dmb-key--accent:hover {
  background: var(--accent-mid);
}

.dmb-reset {
  display: block;
  margin: 14px auto 0;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-3);
  transition: color 0.2s ease;
}

.dmb-reset:hover {
  color: var(--text-1);
}

/* ── Supporting content ── */

.dmb-formula {
  margin: 24px 0;
  padding: 22px 24px;
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  background: var(--accent-ghost);
  text-align: center;
}

.dmb-formula-line {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--text-1);
}

.dmb-formula-note {
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--text-2);
}

@media (max-width: 480px) {
  .dmb-device {
    padding: 14px;
    border-radius: 24px;
  }

  .dmb-display {
    padding: 20px 18px;
  }

  .dmb-key {
    min-height: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dmb-key,
  .dmb-chip,
  .dmb-field {
    transition: none;
  }

  .dmb-key:active {
    transform: none;
  }
}