/* Smoking Cost Calculator - new two-column layout */

.sm-tool .sm-panels {
  margin: 0 -8px;
}
.sm-tool [class*='col-'] {
  padding: 0 8px;
}

.sm-input-panel,
.sm-output-panel {
  height: 100%;
}

.sm-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.sm-panel-header .btn {
  white-space: nowrap;
}

.sm-body {
  display: flex;
  flex-direction: column;
}

.sm-field-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sm-field .sm-label {
  display: block;
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--text-primary, #212529);
}

.sm-number-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.sm-number-row .form-control {
  flex: 1;
  min-width: 0;
}

.sm-segmented {
  display: inline-flex;
  border: 1px solid var(--border-color, #dde1e6);
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
}

.sm-segmented .sm-unit-btn {
  border: none;
  background: var(--panel-bg, #fff);
  color: var(--text-secondary, #5f6b7a);
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.sm-segmented .sm-unit-btn + .sm-unit-btn {
  border-left: 1px solid var(--border-color, #dde1e6);
}

.sm-segmented .sm-unit-btn.is-active {
  background: var(--brand-color, #2f6fed);
  color: #fff;
}

.sm-hint {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-secondary, #5f6b7a);
  line-height: 1.5;
}

.sm-presets {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.sm-preset {
  border: 1px solid var(--border-color, #dde1e6);
  background: var(--panel-bg, #fff);
  color: var(--text-primary, #212529);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
}

.sm-preset:hover {
  border-color: var(--brand-color, #2f6fed);
  color: var(--brand-color, #2f6fed);
}

.sm-preset.is-active {
  background: var(--brand-color, #2f6fed);
  border-color: var(--brand-color, #2f6fed);
  color: #fff;
}

.sm-actions {
  margin-top: 6px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sm-actions .btn {
  flex: 1;
  min-width: 120px;
}

/* ---- output side ---- */
.sm-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 260px;
  border: 1px dashed var(--border-color, #dde1e6);
  border-radius: 8px;
  color: var(--text-secondary, #5f6b7a);
  text-align: center;
  padding: 20px;
}

.sm-empty i {
  font-size: 40px;
  opacity: 0.45;
}

.sm-empty p {
  margin: 0;
  font-size: 13px;
  max-width: 320px;
  line-height: 1.6;
}

.sm-empty.hidden {
  display: none;
}

.sm-result {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sm-result.hidden {
  display: none;
}

.sm-result-hero {
  background: linear-gradient(135deg, #2563eb, #f97316);
  border-radius: 10px;
  color: #fff;
  padding: 22px 24px;
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.sm-hero-value {
  font-size: 44px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -1px;
}

.sm-hero-unit {
  font-size: 18px;
  font-weight: 600;
  opacity: 0.92;
}

.sm-hero-sub {
  width: 100%;
  font-size: 13px;
  opacity: 0.85;
  margin-top: 6px;
}

.sm-section {
  border: 1px solid var(--border-color, #e3e6ea);
  border-radius: 8px;
  padding: 12px 14px;
}

.sm-section-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-secondary, #5f6b7a);
  margin-bottom: 8px;
}

.sm-formula-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 0;
  font-size: 13px;
}

.sm-formula-label {
  color: var(--text-secondary, #5f6b7a);
}

.sm-formula-val {
  font-family: Consolas, Menlo, monospace;
  font-weight: 600;
  color: var(--text-primary, #212529);
  text-align: right;
}

.sm-total-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.sm-total-item {
  border: 1px solid var(--border-color, #e3e6ea);
  border-radius: 8px;
  padding: 10px 8px;
  text-align: center;
  background: var(--panel-bg, #fff);
}

.sm-total-item.is-total {
  border-color: var(--brand-color, #2f6fed);
  background: rgba(47, 111, 237, 0.06);
}

.sm-total-count {
  display: block;
  font-size: 17px;
  font-weight: 800;
  color: var(--brand-color, #2f6fed);
  line-height: 1.25;
  word-break: break-all;
}

.sm-total-item.is-total .sm-total-count {
  color: var(--brand-color, #2f6fed);
}

.sm-total-label {
  display: block;
  font-size: 11.5px;
  color: var(--text-secondary, #5f6b7a);
  margin-top: 4px;
}

.sm-eq-heading {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-secondary, #5f6b7a);
  margin-bottom: 8px;
}

.sm-eq-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.sm-eq-item {
  border: 1px solid var(--border-color, #e3e6ea);
  border-radius: 8px;
  padding: 10px 8px;
  text-align: center;
  background: var(--panel-bg, #fff);
}

.sm-eq-count {
  display: block;
  font-size: 20px;
  font-weight: 800;
  color: var(--brand-color, #2f6fed);
  line-height: 1.2;
}

.sm-eq-label {
  display: block;
  font-size: 11.5px;
  color: var(--text-secondary, #5f6b7a);
  margin-top: 4px;
}

.sm-time {
  border: 1px solid rgba(217, 119, 6, 0.4);
  background: rgba(255, 251, 235, 0.55);
  border-radius: 8px;
  padding: 12px 14px;
}

.sm-time-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: #b45309;
  margin-bottom: 8px;
}

.sm-time .sm-formula-label {
  color: #92400e;
}

.sm-time .sm-formula-val {
  color: #92400e;
}

.sm-time-note {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed rgba(217, 119, 6, 0.35);
  font-size: 11.5px;
  color: #a16207;
  line-height: 1.55;
}

.sm-result .result-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 2px;
}

.sm-meta-stack {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 0;
}

.sm-output-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sm-message {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  line-height: 1.5;
  border-radius: 8px;
  padding: 10px 12px;
  margin-top: 16px;
  transition: opacity 0.25s ease;
}

.sm-message.is-fading {
  opacity: 0;
}

.sm-message.hidden {
  display: none;
}

.sm-msg-error {
  background: rgba(220, 53, 69, 0.08);
  border: 1px solid rgba(220, 53, 69, 0.35);
  color: #c0392b;
}

.sm-msg-success {
  background: rgba(40, 167, 69, 0.08);
  border: 1px solid rgba(40, 167, 69, 0.35);
  color: #1e7e34;
}

.sm-msg-info {
  background: rgba(47, 111, 237, 0.07);
  border: 1px solid rgba(47, 111, 237, 0.3);
  color: var(--brand-color, #2f6fed);
}

[data-theme='dark'] .sm-msg-error {
  color: #f08a8a;
}

[data-theme='dark'] .sm-msg-success {
  color: #7fd88f;
}

[data-theme='dark'] .sm-msg-info {
  color: #7fb0ff;
}

.sm-note {
  margin-top: 14px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary, #5f6b7a);
  line-height: 1.6;
  background: var(--bg-subtle, #f8f9fa);
  border: 1px solid var(--border-color, #e3e6ea);
  border-radius: 8px;
  padding: 10px 12px;
}

.sm-note i {
  margin-top: 2px;
}

/* ---- responsive ---- */
@media (max-width: 991px) {
  .sm-panels [class*='col-'] {
    margin-bottom: 16px;
  }
  .sm-eq-grid,
  .sm-total-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .sm-hero-value {
    font-size: 38px;
  }
}

@media (max-width: 575px) {
  .sm-eq-grid,
  .sm-total-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .sm-number-row {
    flex-wrap: wrap;
  }
  .sm-segmented {
    width: 100%;
  }
  .sm-segmented .sm-unit-btn {
    flex: 1;
    text-align: center;
  }
  .sm-result .result-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .sm-output-actions .btn {
    flex: 1;
  }
}

/* dark mode tweaks */
[data-theme='dark'] .sm-eq-item,
[data-theme='dark'] .sm-section,
[data-theme='dark'] .sm-total-item {
  background: var(--panel-bg, #1e2430);
}

[data-theme='dark'] .sm-time {
  background: rgba(180, 83, 9, 0.12);
  border-color: rgba(217, 119, 6, 0.45);
}