/* Tip Calculator */
.tip-card { max-width: 520px; margin: 0 auto; }
.tip-presets { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.tip-preset { padding: 9px 18px; border-radius: 30px; border: 2px solid var(--line); background: var(--bg-soft);
  color: var(--muted); font-weight: 700; font-size: .92rem; cursor: pointer; transition: all .15s;
  -webkit-tap-highlight-color: transparent; font-family: inherit; }
.tip-preset:hover { border-color: var(--accent); color: var(--accent); }
.tip-preset.active { background: var(--accent-grad); border-color: transparent; color: #0b0e1c; }

.tip-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.tip-result { margin-top: 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tip-cell { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 16px 18px; }
.tip-cell .label { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted-2); font-weight: 700; }
.tip-cell .val { font-size: 1.7rem; font-weight: 800; color: var(--accent-2); margin-top: 4px;
  font-variant-numeric: tabular-nums; }
.tip-cell.hero { background: var(--accent-grad-soft, rgba(108,139,255,.12)); border-color: rgba(108,139,255,.3); }
.tip-split-wrap { margin-top: 16px; }
.tip-copy-btn { margin-top: 12px; }
.tip-split-wrap h3 { font-size: .88rem; color: var(--muted-2); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px; font-weight: 700; }
.tip-split table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.tip-split td { padding: 7px 12px; border-bottom: 1px solid var(--line); }
.tip-split td:last-child { text-align: right; font-weight: 700; color: var(--accent-2); }

.tip-currow { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.tip-currow label { font-size: .88rem; color: var(--muted-2); white-space: nowrap; }
.tip-currow select { flex: 0 0 auto; }

/* Rounding control */
.tip-round { display: flex; gap: 8px; flex-wrap: wrap; }
.tip-round-btn { padding: 8px 16px; border-radius: 30px; border: 2px solid var(--line); background: var(--bg-soft);
  color: var(--muted); font-weight: 700; font-size: .85rem; cursor: pointer; transition: all .15s;
  -webkit-tap-highlight-color: transparent; font-family: inherit; }
.tip-round-btn:hover { border-color: var(--accent); color: var(--accent); }
.tip-round-btn.active { background: var(--accent-grad); border-color: transparent; color: #0b0e1c; }
.tip-round-hint { font-weight: 400; font-size: .8rem; color: var(--muted-2); }
.tip-eff { font-size: .74rem; color: var(--muted-2); margin-top: 3px; font-variant-numeric: tabular-nums; }