/* =========================================================================
   CALCULATOR PAGE STYLES
   ========================================================================= */

/* ─── 1. Layout & Grid ───────────────────────────── */
.calc-hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: clamp(2rem, 4vw, 5rem) clamp(1.25rem, 4vw, 3.5rem) 1.5rem;
}

@media (max-width: 500px) {
  .calc-hero {
    padding: 1.5rem 1rem;
  }
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 28px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3.5rem) clamp(2rem, 4vw, 5rem);
}

@media (max-width: 900px) {
  .calc-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 600px) {
  .calc-grid {
    gap: 1.5rem;
    padding: 0 1rem 1.5rem;
  }
}

/* ─── 2. Input Card & Form Elements ──────────────── */
.input-card h2 {
  margin-bottom: 1.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 3vw, 1.3rem);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.input-group {
  margin-bottom: 1.25rem;
}

.input-group label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: clamp(0.75rem, 2vw, 0.88rem);
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

@media (max-width: 500px) {
  .input-group label {
    flex-direction: column;
    align-items: flex-start;
  }
}

.input-group label .val-badge {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  text-transform: none;
  letter-spacing: -0.01em;
}

.input-wrapper {
  position: relative;
}

.input-wrapper input[type="number"] {
  width: 100%;
  padding: clamp(10px, 2vw, 14px) 48px clamp(10px, 2vw, 14px) 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  font-weight: 600;
  color: var(--ink);
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
  appearance: textfield;
  -moz-appearance: textfield;
}

@media (max-width: 500px) {
  .input-wrapper input[type="number"] {
    min-height: 48px;
    font-size: 16px;
  }
}

.input-wrapper input[type="number"]::-webkit-outer-spin-button,
.input-wrapper input[type="number"]::-webkit-inner-spin-button {
  margin: 0;
  -webkit-appearance: none;
}

.input-wrapper input[type="number"]:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
}

.input-unit {
  position: absolute;
  top: 50%;
  right: 14px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--muted);
  pointer-events: none;
  transform: translateY(-50%);
}

.range-slider {
  width: 100%;
  height: 6px;
  margin-top: 10px;
  border-radius: 3px;
  background: red;
  outline: none;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}

.range-slider::-webkit-slider-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  cursor: pointer;
  transition: transform 0.15s;
  -webkit-appearance: none;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.range-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

/* ─── 3. Warnings & Break-even ───────────────────── */
.warning-box {
  display: none;
  margin-bottom: 1rem;
  padding: 14px 18px;
  border-left: 4px solid var(--gold);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: #7a5c10;
  background: #fff8e6;
}

.warning-box.show {
  display: block;
}

.warning-box.danger {
  border-left-color: var(--accent);
  color: #000000;
  background: #f5f5f5;
}

.break-even-box {
  display: none;
  margin-bottom: 1rem;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: #fff;
  text-align: center;
  background: var(--ink);
}

.break-even-box.show {
  display: block;
}

.break-even-box strong {
  color: red;
}

.info-hint {
  margin-top: 4px;
  font-size: 0.78rem;
  color: var(--muted);
}

/* ─── 4. Action Buttons ──────────────────────────── */
.calc-btn {
  width: 100%;
  min-height: 48px;
  margin-top: 8px;
  padding: clamp(12px, 3vw, 16px);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: clamp(0.9rem, 2vw, 1rem);
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--accent);
  cursor: pointer;
  touch-action: manipulation;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

@media (max-width: 500px) {
  .calc-btn {
    padding: 14px;
    font-size: 0.95rem;
  }
}

.calc-btn:hover {
  transform: translateY(-2px);
  background: #333333;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

.calc-btn:active {
  transform: translateY(0);
}

/* ─── 5. Results Area ────────────────────────────── */
.results-card h2 {
  margin-bottom: 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 3vw, 1.3rem);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 1.5rem;
}

@media (max-width: 500px) {
  .result-grid {
    grid-template-columns: 1fr;
  }
}

.result-tile {
  padding: 18px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  background: #fff;
  transition: transform 0.2s;
}

.result-tile:hover {
  transform: scale(1.02);
}

.result-tile.accent {
  border-color: var(--ink);
  color: #fff;
  background: var(--ink);
}

.result-tile.profit {
  border-color: #a0dbbe;
  background: #eefaf4;
}

.result-tile.loss {
  border-color: #f5b8b0;
  background: #fff0ee;
}

.tile-label {
  margin-bottom: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.result-tile.accent .tile-label { color: #fff; }
.result-tile.profit .tile-label { color: #2a7a55; }
.result-tile.loss .tile-label { color: #9b2f1e; }

.tile-value {
  font-family: var(--font-body);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.03em;
}

.result-tile.accent .tile-value { color: #fff; }
.result-tile.profit .tile-value { color: #1e6642; }
.result-tile.loss .tile-value { color: #c4421f; }

/* ─── 6. Tabs & Visualizations ───────────────────── */
.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 1.2rem;
  padding-bottom: 0;
  border-bottom: 1.5px solid var(--border);
}

.tab-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 44px;
  margin-bottom: -1.5px;
  padding: clamp(8px, 2vw, 10px) clamp(12px, 3vw, 18px);
  border: none;
  border-bottom: 3px solid transparent;
  font-family: var(--font-display);
  font-size: clamp(0.75rem, 2vw, 0.85rem);
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: none;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.tab-btn.active {
  border-bottom-color: var(--accent);
  color: var(--accent);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.chart-wrap {
  height: 280px;
  padding: 12px;
  border-radius: var(--radius-md);
  background: #fff;
}

/* ─── 7. Table ───────────────────────────────────── */
.table-scroll {
  overflow-x: auto;
  overflow-y: auto;
  max-height: 280px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 600px) {
  .table-scroll {
    max-height: 350px;
  }
}

.details-table {
  width: 100%;
  min-width: 500px;
  border-collapse: collapse;
  font-size: clamp(0.75rem, 2vw, 0.85rem);
}

@media (max-width: 600px) {
  .details-table {
    min-width: 450px;
    font-size: 0.78rem;
  }
}

.details-table th {
  position: sticky;
  top: 0;
  padding: clamp(8px, 1vw, 10px) clamp(10px, 2vw, 14px);
  font-family: var(--font-display);
  font-size: clamp(0.65rem, 1.5vw, 0.72rem);
  color: white;
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: #000000;
}

.details-table td {
  padding: clamp(8px, 1vw, 9px) clamp(10px, 2vw, 14px);
  border-bottom: 1px solid var(--border);
  color: var(--ink);
  white-space: nowrap;
}

.details-table tr:hover td {
  background: #00000035;
}

.details-table .pos {
  font-weight: 600;
  color: #1e8f5e;
}

.details-table .neg {
  font-weight: 600;
  color: #c4421f;
}

/* ─── 8. Empty States & Utilities ────────────────── */
#emptyState {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 300px;
  color: var(--muted);
}

#emptyState .empty-icon {
  font-size: 3rem;
  opacity: 0.5;
}

#emptyState p {
  font-size: 0.95rem;
  text-align: center;
}

.hidden {
  display: none !important;
}