/* ================================================================
   PropCashflow.my — Tools Stylesheet
   Hamburger menu, tools drawer, stamp duty calculator.
   Uses theme.css tokens (single source of truth for colors).
   ================================================================ */

/* ================================================================
   HAMBURGER BUTTON
   ================================================================ */
.tools-hamburger {
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0.45rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  transition: border-color 0.25s, background 0.25s;
  flex-shrink: 0;
  position: relative;
}

.tools-hamburger:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.tools-hamburger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.tools-hamburger .hamburger-icon,
.tools-hamburger .close-icon {
  width: 18px;
  height: 18px;
  color: var(--accent);
  position: absolute;
  transition: transform 0.3s var(--transition-spring), opacity 0.2s ease;
}

.tools-hamburger .close-icon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

.tools-hamburger[aria-expanded="true"] .hamburger-icon {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

.tools-hamburger[aria-expanded="true"] .close-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* Nav left container */
.nav-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* ================================================================
   TOOLS DRAWER OVERLAY
   ================================================================ */
.tools-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.tools-drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* ================================================================
   TOOLS DRAWER
   ================================================================ */
.tools-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 320px;
  max-width: 85vw;
  background: var(--bg-primary);
  border-right: 1px solid var(--border-subtle);
  z-index: 200;
  transform: translateX(-100%);
  transition: transform 0.35s var(--transition-smooth);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.tools-drawer.open {
  transform: translateX(0);
}

.tools-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.tools-drawer-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1.2rem;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.tools-drawer-close {
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0.4rem;
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: border-color 0.25s, color 0.25s;
}

.tools-drawer-close:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.tools-drawer-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.tools-drawer-close svg {
  width: 16px;
  height: 16px;
}

/* Drawer items */
.tools-drawer-list {
  padding: 1rem;
  flex: 1;
}

.tools-drawer-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: var(--card-radius);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  transition: border-color 0.3s, transform 0.25s var(--transition-smooth);
  text-decoration: none;
  color: inherit;
  margin-bottom: 0.75rem;
}

.tools-drawer-item:hover {
  border-color: var(--border);
  transform: translateX(4px);
}

.tools-drawer-item-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tools-drawer-item-icon svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.tools-drawer-item-info {
  flex: 1;
  min-width: 0;
}

.tools-drawer-item-name {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.tools-drawer-item-desc {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.tools-drawer-item-arrow {
  margin-left: auto;
  color: var(--accent);
  font-size: 0.9rem;
  transition: transform 0.3s var(--transition-smooth);
  flex-shrink: 0;
}

.tools-drawer-item:hover .tools-drawer-item-arrow {
  transform: translateX(3px);
}

.tools-drawer-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ================================================================
   STAMP DUTY CALCULATOR
   ================================================================ */
.calc-container {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem 4rem;
}

.calc-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.calc-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--card-radius);
  padding: 2rem;
  position: relative;
}

.calc-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: var(--card-radius) var(--card-radius) 0 0;
}

.calc-inputs::before {
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
}

.calc-results::before {
  background: linear-gradient(90deg, var(--green), var(--accent));
}

.calc-panel-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1.15rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

/* Input fields */
.calc-field {
  margin-bottom: 1.25rem;
}

.calc-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.calc-input-wrapper {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
  background: var(--bg-primary);
}

.calc-input-wrapper:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.calc-input-prefix {
  padding: 0.75rem 0.75rem 0.75rem 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-subtle);
  user-select: none;
}

.calc-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 0.75rem 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
  outline: none;
  min-width: 0;
}

/* Toggle group (Citizen / PR / Foreigner, Residential / Non-residential) */
.calc-toggle-group {
  display: flex;
  gap: 0;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  overflow: hidden;
}

.calc-toggle {
  flex: 1;
  padding: 0.65rem 0.75rem;
  background: var(--bg-primary);
  border: none;
  font-family: 'Outfit', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.25s;
  white-space: nowrap;
}

.calc-toggle:not(:last-child) {
  border-right: 1px solid var(--border-subtle);
}

.calc-toggle.active {
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 600;
}

.calc-toggle:hover:not(.active) {
  background: var(--hover-overlay);
  color: var(--text-primary);
}

/* Checkbox (first-time buyer) */
.calc-field-check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.calc-field-check input[type="checkbox"] {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  margin-top: 2px;
  flex-shrink: 0;
}

.calc-field-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  line-height: 1.5;
}

/* Slider */
.calc-slider-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.calc-slider {
  flex: 1;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--border-subtle);
  outline: none;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg-primary);
  box-shadow: 0 2px 8px var(--accent-shadow);
}

.calc-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg-primary);
  box-shadow: 0 2px 8px var(--accent-shadow);
}

.calc-slider-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 50px;
  text-align: right;
}

/* Results */
.calc-result-group {
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.calc-result-group:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.calc-result-group-title {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.calc-result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 0;
}

.calc-result-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.calc-result-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* Total */
.calc-result-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.calc-result-total-label {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
}

.calc-result-total-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}

/* Exemption note */
.calc-result-note {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--green-dim);
  border: 1px solid var(--green-border);
  border-radius: 8px;
  font-size: 0.78rem;
  color: var(--green);
}

.calc-note-badge {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  background: var(--green-bg-tag);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  white-space: nowrap;
}

/* Disclaimer note */
.calc-disclaimer {
  margin-top: 0.75rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.5;
}

/* Date input */
.calc-input-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
}

/* Side-by-side field row (date inputs) */
.calc-field-row {
  display: flex;
  gap: 1rem;
}

.calc-field-half {
  flex: 1;
  min-width: 0;
}

/* Rate reference tables */
.calc-reference {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--card-radius);
}

.calc-reference h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.calc-ref-tables {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.calc-ref-table h4 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.calc-ref-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.calc-ref-table th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}

.calc-ref-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

/* Reference source links */
.calc-ref-source {
  margin-top: 1.25rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.calc-ref-source a {
  color: var(--accent);
  text-decoration: none;
}

.calc-ref-source a:hover {
  text-decoration: underline;
}

/* Select dropdown */
.calc-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
  cursor: pointer;
}

/* Cashflow positive/negative highlighting */
.calc-positive {
  color: var(--accent) !important;
}

.calc-negative {
  color: var(--red) !important;
}

/* Panel subtitle */
.calc-panel-subtitle {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.25rem 0 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 768px) {
  .calc-inner {
    grid-template-columns: 1fr;
  }

  .calc-ref-tables {
    grid-template-columns: 1fr;
  }

  .calc-container {
    padding: 0 1.25rem 3rem;
  }
}

@media (max-width: 600px) {
  .calc-field-row {
    flex-direction: column;
    gap: 0;
  }

  .calc-panel {
    padding: 1.5rem;
  }

  .calc-result-total-value {
    font-size: 1.15rem;
  }

  .calc-toggle {
    font-size: 0.75rem;
    padding: 0.55rem 0.5rem;
  }
}

/* ================================================================
   REDUCED MOTION
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  .tools-drawer {
    transition: none;
  }

  .tools-drawer-overlay {
    transition: none;
  }

  .tools-hamburger .hamburger-icon,
  .tools-hamburger .close-icon {
    transition: opacity 0.15s ease;
    transform: none !important;
  }

  .tools-hamburger[aria-expanded="true"] .hamburger-icon {
    opacity: 0;
  }

  .tools-hamburger[aria-expanded="true"] .close-icon {
    opacity: 1;
  }

  .tools-hamburger .close-icon {
    opacity: 0;
  }

  .tools-drawer-item {
    transition: none;
  }
}

/* ================================================================
   PRINT
   ================================================================ */
@media print {
  .calc-inputs,
  .tools-drawer,
  .tools-drawer-overlay,
  .tools-hamburger {
    display: none !important;
  }
}