/* 할인 계산기 전용 스타일 */

nav { max-width: 760px; }
main { max-width: 760px; }

.mode-tabs {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.mode-tab {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--surface);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
}
.mode-tab:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.mode-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.mode-pane[hidden] { display: none; }

.input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.input-row.three { grid-template-columns: 1.4fr 1fr 1fr; }

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.85rem 0.95rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 0.85rem;
}

.input-group label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.input-group input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  min-height: 44px;
}
.input-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.12);
}

.input-row .input-group { margin-bottom: 0; }

#bogo-pane .input-row { grid-template-columns: 1.4fr 1fr 1fr; }

/* 할인 누적 리스트 */
.discounts-section {
  padding: 0.85rem 0.95rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 0.85rem;
}

.discounts-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.discounts-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.btn-add-d {
  padding: 0.35rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 500;
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
  border-radius: 7px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-add-d:hover {
  background: var(--primary-hover);
}

.discounts-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.d-row {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 0.5rem;
  align-items: center;
}

.d-kind {
  padding: 0.5rem 0.6rem;
  font-size: 0.85rem;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  cursor: pointer;
}
.d-kind:focus { border-color: var(--primary); }

.d-value {
  padding: 0.5rem 0.65rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92rem;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  width: 100%;
  min-width: 0;
}
.d-value:focus { border-color: var(--primary); }

.d-remove {
  width: 30px;
  height: 30px;
  font-size: 1rem;
  background: transparent;
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.d-remove:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--error);
  color: var(--error);
}
.d-remove:disabled { opacity: 0.3; cursor: not-allowed; }

/* 결과 */
.results {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.results[hidden] { display: none; }

.result-card {
  text-align: center;
  padding: 1.2rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.result-card.primary {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.14), rgba(102, 126, 234, 0.03));
  border-color: var(--primary);
}

.r-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-sub);
  margin-bottom: 0.4rem;
}

.r-value {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
  line-height: 1;
}

.result-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.55rem;
}

.r-cell {
  padding: 0.7rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.r-key {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.r-val {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.error {
  margin-top: 0.85rem;
  padding: 0.75rem 0.95rem;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  color: var(--error);
  font-size: 0.85rem;
}
.error[hidden] { display: none; }

@media (max-width: 600px) {
  .input-row { grid-template-columns: 1fr; }
  #bogo-pane .input-row { grid-template-columns: 1fr 1fr; }
  #bogo-pane .input-row > :first-child { grid-column: 1 / -1; }
  .r-value { font-size: 1.7rem; }
  .d-row { grid-template-columns: 90px 1fr auto; }
}