/* Email Storage Cost: its own styles, on the family tokens (site.css) and
   the bench layer (bench.css). Light and dark come from the tokens; the
   inbox chart reads the same tokens when it draws (palette() in
   emailcost.js). Quota lines: F3 --warn, E1 --bad, E3/E5 --violet. */

.mode-row {
  display: flex;
  justify-content: center;
  padding-bottom: clamp(1.25rem, 3vw, 2rem);
}
.calc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 19rem;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: start;
}
@media (max-width: 54rem) {
  .calc-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- Calculator ---------- */

.calc-panel {
  border: 1px solid var(--glass-line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
}
.calc-panel-header {
  padding: 1.1rem 1.5rem 1rem;
  border-bottom: 1px solid var(--glass-line);
}
.calc-panel-header h2 {
  margin-bottom: 0.2rem;
  color: var(--ink);
  font: 800 1.1rem/1.2 var(--font-display);
}
.calc-panel-header p {
  color: var(--ink-muted);
  font-size: 0.85rem;
  line-height: 1.5;
}
.calc-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
}
/* The mode panels and sidebar groups are wrappers: space their children. */
.mode-panel,
.calc-sidebar > div {
  display: flex;
  flex-direction: column;
}
.mode-panel { gap: 1.1rem; }
.calc-sidebar > div { gap: 0.9rem; }
.calc-divider {
  height: 1px;
  margin: 2px -1.5rem;
  background: var(--glass-line);
}

.seg {
  display: flex;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
}
.seg-btn {
  padding: 0.5rem 1.25rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-muted);
  font: 600 0.88rem/1.2 var(--font);
  cursor: pointer;
}
.seg-btn.active {
  background: var(--accent-fill);
  color: var(--ink-on-accent);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.field input[type="number"],
.field select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--ink);
  font: 500 0.92rem/1.3 var(--font-mono);
  -moz-appearance: textfield;
  appearance: textfield;
}
.field select {
  appearance: none;
  padding-right: 2rem;
  background:
    linear-gradient(45deg, transparent 50%, var(--ink-muted) 50%) right 0.95rem center / 5px 5px no-repeat,
    linear-gradient(-45deg, transparent 50%, var(--ink-muted) 50%) right 0.65rem center / 5px 5px no-repeat,
    var(--surface);
  font-family: var(--font);
  cursor: pointer;
}
.field input[type="number"]:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
}
.field-row {
  display: flex;
  gap: 0.5rem;
}
.field-row input {
  flex: 1;
}
.field-row select {
  flex: none;
  width: auto;
}
.field-hint {
  color: var(--ink-muted);
  font-size: 0.78rem;
  line-height: 1.55;
}
.field-unit-label {
  display: flex;
  flex: none;
  align-items: center;
  padding: 0 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: var(--surface-sunk);
  color: var(--ink-muted);
  font: 400 0.82rem/1.3 var(--font-mono);
  white-space: nowrap;
}
.field input[type="checkbox"] {
  width: 15px;
  height: 15px;
  flex: none;
  margin-right: 0.4rem;
  accent-color: var(--accent-fill);
  cursor: pointer;
}
.checkbox-label {
  display: flex;
  align-items: center;
  color: var(--ink-muted);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
}

.store-tabs,
.preset-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.store-tab,
.preset-chip {
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-muted);
  font: 600 0.78rem/1.25 var(--font);
  white-space: nowrap;
  cursor: pointer;
}
.store-tab:hover,
.preset-chip:hover {
  border-color: var(--accent);
  color: var(--ink);
}
.store-tab.active,
.preset-chip.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-ink);
}
.preset-chip {
  border-radius: var(--r-sm);
  font-weight: 500;
  text-align: center;
}
.chip-sub {
  font: 400 0.7rem/1.3 var(--font-mono);
}
.storage-price-tag {
  padding: 0.5rem 0.75rem;
  border-radius: var(--r-sm);
  background: var(--accent-soft);
  color: var(--accent-ink);
  font: 500 0.8rem/1.4 var(--font-mono);
}
.storage-price-tag strong {
  font-weight: 700;
}
.storage-price-tag span {
  color: var(--ink-muted);
  font-family: var(--font);
}

.slider-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 5.5rem;
  align-items: center;
  gap: 0.6rem;
}
input[type="range"] {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--line-strong);
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-fill);
  box-shadow: 0 0 0 3px var(--accent-soft);
  -webkit-appearance: none;
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: 0;
  border-radius: 50%;
  background: var(--accent-fill);
  cursor: pointer;
}

/* ---------- Results ---------- */

.results-label {
  color: var(--ink-muted);
  font: 500 0.75rem/1.3 var(--font-mono);
}
.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
@media (max-width: 30rem) {
  .results-grid {
    grid-template-columns: 1fr;
  }
}
.result-box {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 0.85rem 0.95rem;
  border-radius: var(--r-sm);
  background: var(--surface-sunk);
}
.result-box.primary {
  grid-column: 1 / -1;
  padding: 1rem 1.1rem;
  background: var(--accent-soft);
}
.result-box-label {
  color: var(--ink-muted);
  font: 500 0.72rem/1.3 var(--font-mono);
}
.result-box-val {
  color: var(--accent-ink);
  font: 500 1.35rem/1.1 var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.result-box.primary .result-box-val {
  color: var(--ink);
  font-size: 2.2rem;
}
.result-box-sub {
  color: var(--ink-muted);
  font-size: 0.75rem;
}
@keyframes pop {
  0% {
    transform: scale(1);
  }
  40% {
    transform: scale(1.06);
  }
  100% {
    transform: scale(1);
  }
}
.result-box-val.popped {
  animation: pop 0.22s ease;
}

.snowball-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.snowball-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 0.85rem;
  border-radius: var(--r-sm);
  background: var(--surface-sunk);
}
.snow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  min-width: 5rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-sm);
  background: var(--surface);
  text-align: center;
}
.snow-step--cost {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.snow-step-label {
  color: var(--ink-muted);
  font: 500 0.68rem/1.3 var(--font-mono);
}
.snow-step-value {
  color: var(--ink);
  font: 700 0.85rem/1.3 var(--font-mono);
}
.snow-step--cost .snow-step-value {
  color: var(--accent-ink);
  font-size: 0.95rem;
}
.snow-arrow {
  flex: none;
  color: var(--ink-muted);
}
@media (max-width: 38rem) {
  .snowball-chain {
    flex-direction: column;
    align-items: stretch;
  }
  .snow-step {
    flex-direction: row;
    justify-content: space-between;
    min-width: 0;
  }
  .snow-arrow {
    align-self: center;
    transform: rotate(90deg);
  }
}
.fun-compare {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--ok);
  border-radius: var(--r-sm);
  background: var(--ok-soft);
  color: var(--ink-muted);
  font-size: 0.85rem;
}
.fun-compare strong {
  color: var(--ok);
}
.hint-box {
  padding: 0.65rem 0.8rem;
  border-radius: var(--r-sm);
  background: var(--accent-soft);
  color: var(--ink-muted);
  font-size: 0.8rem;
  line-height: 1.6;
}
.hint-box strong {
  color: var(--ink);
}
.calc-actions {
  display: flex;
  gap: 0.5rem;
}

/* ---------- Inbox chart ---------- */

.chart-box {
  border: 1px solid var(--glass-line);
  border-radius: var(--r-sm);
  background: var(--surface-sunk);
  overflow: hidden;
}
#inbox-canvas {
  display: block;
  width: 100%;
  height: 200px;
}
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
  padding: 0.45rem 0.75rem;
  border-top: 1px solid var(--glass-line);
}
.cl-item {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--ink-muted);
  font-size: 0.72rem;
}
.cl-line {
  width: 14px;
  height: 2.5px;
  flex: none;
  border-radius: 1px;
}
.cl-this {
  background: var(--accent);
}
.cl-ref5 {
  background: var(--ink-muted);
}
.cl-ref50 {
  background: var(--line-strong);
}
.cl-quota {
  height: 0;
  border-top: 1.5px dashed;
  border-radius: 0;
  background: none;
}
.cl-f3 {
  border-color: var(--warn);
}
.cl-e1 {
  border-color: var(--bad);
}
.cl-e3 {
  border-color: var(--violet);
}

/* ---------- File tiers ---------- */

.tier-compare {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tier-compare-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-sm);
  background: var(--surface-sunk);
}
.tier-compare-row.highlight {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.tcr-name {
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 600;
}
.tcr-selected {
  color: var(--ink-muted);
  font-size: 0.7rem;
  font-weight: 400;
}
.tcr-note {
  margin-top: 1px;
  color: var(--ink-muted);
  font-size: 0.72rem;
}
.tcr-right {
  text-align: right;
}
.tcr-cost {
  color: var(--accent-ink);
  font: 500 1.2rem/1.1 var(--font-mono);
}
.tcr-sub {
  color: var(--ink-muted);
  font-size: 0.7rem;
}

/* ---------- Sidebar ---------- */

.calc-sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  position: sticky;
  top: 6rem;
}
@media (max-width: 54rem) {
  .calc-sidebar {
    position: static;
  }
}
.sidebar-card {
  padding: 1.25rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-md);
  background: var(--surface);
}
.sidebar-card .bench-kicker {
  margin-bottom: 0.85rem;
}
.formula-block {
  padding: 0.75rem 0.9rem;
  border-radius: var(--r-sm);
  background: var(--surface-sunk);
  color: var(--ink);
  font: 400 0.75rem/1.9 var(--font-mono);
  white-space: pre;
  overflow-x: auto;
}
.formula-desc {
  margin-top: 0.6rem;
  color: var(--ink-muted);
  font-size: 0.8rem;
  line-height: 1.6;
}
.formula-desc strong {
  color: var(--ink);
}
.info-callout {
  margin-top: 4px;
  padding-top: 0.85rem;
  border-top: 1px solid var(--glass-line);
}
.info-callout:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}
.info-callout-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.info-callout-head h3 {
  color: var(--ink);
  font: 600 0.85rem/1.3 var(--font);
  letter-spacing: 0;
}
.callout-btn {
  padding: 2px 4px;
  border: 0;
  background: none;
  color: var(--ink-muted);
  font: 400 0.72rem/1 var(--font);
  cursor: pointer;
}
.callout-btn:hover {
  color: var(--accent-ink);
}
.info-callout-body {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 0.28s ease, opacity 0.22s ease;
}
.info-callout-body.open {
  grid-template-rows: 1fr;
  opacity: 1;
}
.info-callout-inner {
  overflow: hidden;
}
.info-callout-inner p {
  padding-top: 0.6rem;
  color: var(--ink-muted);
  font-size: 0.8rem;
  line-height: 1.65;
}

.lic-table,
.tier-table {
  width: 100%;
  margin-top: 4px;
  border-collapse: collapse;
  font-size: 0.75rem;
}
.lic-table th,
.tier-table th {
  padding: 0 0.5rem 0.5rem 0;
  border-bottom: 1px solid var(--glass-line);
  color: var(--ink-muted);
  font: 500 0.7rem/1.3 var(--font-mono);
  text-align: left;
}
.lic-table td,
.tier-table td {
  padding: 0.45rem 0.5rem 0.45rem 0;
  border-bottom: 1px solid var(--glass-line);
  color: var(--ink-muted);
  vertical-align: middle;
}
.lic-table td:first-child,
.tier-table td:first-child {
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}
.td-price {
  color: var(--accent-ink);
  font-weight: 600;
  white-space: nowrap;
}
.lic-badge {
  display: inline-block;
  padding: 2px 7px;
  border: 1px solid;
  border-radius: 999px;
  font: 500 0.68rem/1.3 var(--font-mono);
}
.lic-badge.lim {
  border-color: var(--warn);
  background: var(--warn-soft);
  color: var(--warn);
}
.lic-badge.ok {
  border-color: var(--ok);
  background: var(--ok-soft);
  color: var(--ok);
}

/* ---------- Notes under the tool ---------- */

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}
@media (max-width: 45rem) {
  .method-grid {
    grid-template-columns: 1fr;
  }
}
.method-card {
  padding: 1.35rem;
  border-radius: var(--r-md);
}
.method-card h3 {
  margin-bottom: 0.6rem;
  color: var(--ink);
  font: 800 1rem/1.25 var(--font-display);
}
.method-card p {
  color: var(--ink-muted);
  font-size: 0.88rem;
  line-height: 1.65;
}
.method-card .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 0.85rem;
}
.method-tag {
  padding: 3px 9px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font: 500 0.72rem/1.3 var(--font-mono);
}