/* =========================================================
   NorthEdge Flooring Calculator — Styles
   ========================================================= */

/* ── Wrapper ─────────────────────────────────────────────── */

.nef-calc-wrapper {
  --nef-gold: #f06b30;
  --nef-gold-dark: #d75217;
  --nef-gold-light: #f5e9c0;
  --nef-dark: #1a1a1a;
  --nef-text: #2c2c2c;
  --nef-text-muted: #666;
  --nef-border: #e0e0e0;
  --nef-bg: #ffffff;
  --nef-bg-card: #fafafa;
  --nef-radius: 12px;
  --nef-radius-sm: 8px;
  --nef-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --nef-shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
  --nef-transition: 0.2s ease;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  max-width: 780px;
  margin: 0 auto;
  background: var(--nef-bg);
  border-radius: var(--nef-radius);
  box-shadow: var(--nef-shadow);
  overflow: hidden;
  color: var(--nef-text);
}

/* ── Progress bar ────────────────────────────────────────── */

.nef-progress {
  background: var(--nef-dark);
  padding: 20px 28px 0;
}

.nef-progress-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
}

.nef-ps {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
  cursor: default;
  opacity: 0.45;
  transition: opacity var(--nef-transition);
}

.nef-ps.active,
.nef-ps.done {
  opacity: 1;
}

.nef-ps-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid #444;
  background: transparent;
  color: #aaa;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--nef-transition);
  position: relative;
  z-index: 1;
}

.nef-ps.active .nef-ps-num {
  background: var(--nef-gold);
  border-color: var(--nef-gold);
  color: #fff;
}

.nef-ps.done .nef-ps-num {
  background: var(--nef-gold-dark);
  border-color: var(--nef-gold-dark);
  color: #fff;
}

.nef-ps.done .nef-ps-num::after {
  content: "✓";
  font-size: 14px;
}

.nef-ps.done .nef-ps-num span {
  display: none;
}

.nef-ps-label {
  font-size: 11px;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  padding-bottom: 14px;
}

.nef-ps.active .nef-ps-label {
  color: var(--nef-gold);
}

.nef-ps.done .nef-ps-label {
  color: #aaa;
}

.nef-progress-bar {
  height: 3px;
  background: #333;
  margin-top: -3px;
}

.nef-progress-fill {
  height: 100%;
  background: var(--nef-gold);
  transition: width 0.4s ease;
}

/* ── Panels ──────────────────────────────────────────────── */

.nef-panel {
  display: none;
  padding: 36px 32px 24px;
  animation: nefFadeIn 0.3s ease;
}

.nef-panel.active {
  display: block;
}

@keyframes nefFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nef-step-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--nef-text);
  margin: 0 0 6px;
  line-height: 1.3;
}

.nef-step-subtitle {
  font-size: 14px;
  color: var(--nef-text-muted);
  margin: 0 0 24px;
}

/* ── Room type grid ──────────────────────────────────────── */

.nef-room-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.nef-room-card {
  background: var(--nef-bg-card);
  border: 2px solid var(--nef-border);
  border-radius: var(--nef-radius-sm);
  padding: 20px 12px 16px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: all var(--nef-transition);
  font-size: 14px;
  font-weight: 600;
  color: var(--nef-text);
  text-align: center;
}

.nef-room-card:hover {
  border-color: var(--nef-gold);
  background: var(--nef-gold-light);
  transform: translateY(-2px);
  box-shadow: var(--nef-shadow-card);
}

.nef-room-card.selected {
  border-color: var(--nef-gold);
  background: var(--nef-gold-light);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.25);
}

.nef-room-card--wide {
  grid-column: span 3;
  flex-direction: row;
  justify-content: center;
  padding: 16px 20px;
}

.nef-room-icon {
  width: 44px;
  height: 44px;
  color: var(--nef-gold);
  flex-shrink: 0;
}

.nef-room-icon svg {
  width: 100%;
  height: 100%;
}

.nef-room-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--nef-text);
}

/* ── Area step ───────────────────────────────────────────── */

.nef-area-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  margin-top: 20px;
}

.nef-area-tab {
  padding: 9px 20px;
  border: 2px solid var(--nef-border);
  border-radius: 50px;
  background: transparent;
  font-size: 14px;
  font-weight: 600;
  color: var(--nef-text-muted);
  cursor: pointer;
  transition: all var(--nef-transition);
}

.nef-area-tab:hover {
  border-color: var(--nef-gold);
  color: var(--nef-gold);
}

.nef-area-tab.active {
  background: var(--nef-gold);
  border-color: var(--nef-gold);
  color: #fff;
}

.nef-area-mode {
  display: none;
}

.nef-area-mode.active {
  display: block;
}

.nef-area-preview {
  margin-top: 12px;
  font-size: 16px;
  color: var(--nef-text-muted);
  padding: 10px 16px;
  background: var(--nef-gold-light);
  border-radius: var(--nef-radius-sm);
  display: inline-block;
}

.nef-area-preview strong {
  color: var(--nef-gold-dark);
  font-size: 18px;
}

/* ── Fields ──────────────────────────────────────────────── */

.nef-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nef-field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--nef-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.nef-field label span {
  color: var(--nef-gold);
}

.nef-field input,
.nef-field textarea {
  padding: 12px 14px;
  border: 2px solid var(--nef-border);
  border-radius: var(--nef-radius-sm);
  font-size: 16px;
  color: var(--nef-text);
  background: var(--nef-bg);
  transition: border-color var(--nef-transition);
  width: 100%;
  box-sizing: border-box;
  -moz-appearance: textfield;
}

.nef-field input::-webkit-outer-spin-button,
.nef-field input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.nef-field input:focus,
.nef-field textarea:focus {
  outline: none;
  border-color: var(--nef-gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.15);
}

.nef-field textarea {
  resize: vertical;
  font-family: inherit;
}

.nef-fields-row {
  display: flex;
  gap: 16px;
  align-items: flex-end;
}

.nef-times {
  font-size: 24px;
  color: var(--nef-text-muted);
  padding-bottom: 12px;
  flex-shrink: 0;
}

/* ── Thickness cards ─────────────────────────────────────── */

.nef-thickness-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.nef-thickness-card {
  background: var(--nef-bg-card);
  border: 2px solid var(--nef-border);
  border-radius: var(--nef-radius-sm);
  padding: 24px 16px 20px;
  cursor: pointer;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--nef-transition);
  position: relative;
  overflow: hidden;
}

.nef-thickness-card:hover {
  border-color: var(--nef-gold);
  transform: translateY(-2px);
  box-shadow: var(--nef-shadow-card);
}

.nef-thickness-card.selected {
  border-color: var(--nef-gold);
  background: var(--nef-gold-light);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.25);
}

.nef-thickness-card.nef-popular {
  border-color: var(--nef-gold);
}

.nef-popular-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--nef-gold);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 4px 10px;
  border-bottom-left-radius: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nef-thickness-mm {
  font-size: 28px;
  font-weight: 800;
  color: var(--nef-text);
  line-height: 1;
}

.nef-thickness-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nef-thickness-features li {
  font-size: 13px;
  color: var(--nef-text-muted);
  padding-left: 16px;
  position: relative;
}

.nef-thickness-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--nef-gold);
  font-size: 12px;
  font-weight: 700;
}

.nef-thickness-price {
  font-size: 13px;
  font-weight: 700;
  color: var(--nef-gold-dark);
  margin-top: auto;
}

/* ── Additional services ─────────────────────────────────── */

.nef-services-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.nef-service-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--nef-bg-card);
  border: 2px solid var(--nef-border);
  border-radius: var(--nef-radius-sm);
  cursor: pointer;
  transition: all var(--nef-transition);
}

.nef-service-item:hover {
  border-color: var(--nef-gold);
  background: var(--nef-gold-light);
}

.nef-service-item input[type="checkbox"] {
  display: none;
}

.nef-service-check {
  width: 22px;
  height: 22px;
  border: 2px solid var(--nef-border);
  border-radius: 6px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--nef-transition);
  background: var(--nef-bg);
}

.nef-service-item input:checked ~ .nef-service-check {
  background: var(--nef-gold);
  border-color: var(--nef-gold);
}

.nef-service-item input:checked ~ .nef-service-check::after {
  content: "✓";
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}

.nef-service-item input:checked ~ .nef-service-info strong {
  color: var(--nef-gold-dark);
}

.nef-service-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.nef-service-info strong {
  font-size: 14px;
  color: var(--nef-text);
  transition: color var(--nef-transition);
}

.nef-service-info span {
  font-size: 12px;
  color: var(--nef-text-muted);
}

.nef-service-cost {
  font-size: 12px;
  font-weight: 700;
  color: var(--nef-gold-dark);
  white-space: nowrap;
}

/* ── Results ─────────────────────────────────────────────── */

.nef-result-card {
  background: var(--nef-dark);
  border-radius: var(--nef-radius);
  padding: 28px 28px 24px;
  margin: 20px 0;
}

.nef-result-total {
  text-align: center;
  margin-bottom: 24px;
}

.nef-result-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #888;
  margin-bottom: 8px;
}

.nef-result-range {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nef-result-amount {
  font-size: 44px;
  font-weight: 800;
  color: var(--nef-gold);
  line-height: 1;
}

.nef-result-dash {
  font-size: 28px;
  color: #555;
  font-weight: 300;
}

.nef-result-currency {
  font-size: 16px;
  color: #666;
  font-weight: 600;
  align-self: center;
}

.nef-result-breakdown {
  border-top: 1px solid #333;
  padding-top: 20px;
}

.nef-breakdown-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.nef-breakdown-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 0 0 10px;
}

.nef-breakdown-table th:last-child {
  text-align: right;
}

.nef-breakdown-table td {
  padding: 7px 0;
  color: #ccc;
  border-top: 1px solid #2a2a2a;
}

.nef-breakdown-table td:last-child {
  text-align: right;
  font-weight: 600;
  color: #ddd;
  white-space: nowrap;
}

.nef-breakdown-table tr.nef-total-row td {
  border-top: 1px solid #444;
  padding-top: 12px;
  font-weight: 700;
  color: var(--nef-gold);
  font-size: 15px;
}

.nef-disclaimer {
  font-size: 12px;
  color: var(--nef-text-muted);
  line-height: 1.6;
  margin: 0 0 20px;
}

.nef-btn-contact {
  width: 100%;
  padding: 16px;
  background: var(--nef-gold);
  color: #fff;
  border: none;
  border-radius: var(--nef-radius-sm);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition:
    background var(--nef-transition),
    transform var(--nef-transition);
  letter-spacing: 0.02em;
}

.nef-btn-contact:hover {
  background: var(--nef-gold-dark);
  transform: translateY(-1px);
}

/* ── Contact form ────────────────────────────────────────── */

.nef-estimate-summary-bar {
  background: var(--nef-gold-light);
  border: 1px solid var(--nef-gold);
  border-radius: var(--nef-radius-sm);
  padding: 14px 18px;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--nef-text);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.nef-estimate-summary-bar strong {
  color: var(--nef-gold-dark);
  font-size: 18px;
}

.nef-contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.nef-btn-submit {
  width: 100%;
  padding: 16px;
  background: var(--nef-gold);
  color: #fff;
  border: none;
  border-radius: var(--nef-radius-sm);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition:
    background var(--nef-transition),
    transform var(--nef-transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 4px;
}

.nef-btn-submit:hover:not(:disabled) {
  background: var(--nef-gold-dark);
  transform: translateY(-1px);
}

.nef-btn-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.nef-btn-spinner {
  width: 18px;
  height: 18px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: nefSpin 0.7s linear infinite;
  display: none;
}

.nef-btn-submit.loading .nef-btn-spinner {
  display: inline-block;
}

.nef-btn-submit.loading .nef-btn-text {
  opacity: 0.8;
}

@keyframes nefSpin {
  to {
    transform: rotate(360deg);
  }
}

.nef-privacy {
  font-size: 12px;
  color: var(--nef-text-muted);
  text-align: center;
  margin: 0;
}

/* ── Messages ────────────────────────────────────────────── */

.nef-error {
  font-size: 13px;
  color: #d32f2f;
  background: #fdecea;
  padding: 10px 14px;
  border-radius: var(--nef-radius-sm);
  border-left: 3px solid #d32f2f;
  margin: 0;
}

.nef-success {
  font-size: 14px;
  color: #2e7d32;
  background: #e8f5e9;
  padding: 14px 18px;
  border-radius: var(--nef-radius-sm);
  border-left: 3px solid #4caf50;
  margin: 0;
  font-weight: 500;
}

.nef-hint {
  font-size: 13px;
  color: var(--nef-text-muted);
  margin: 16px 0 0;
  line-height: 1.5;
}

/* ── Navigation ──────────────────────────────────────────── */

.nef-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 32px 28px;
  gap: 12px;
}

.nef-btn {
  padding: 12px 28px;
  border-radius: var(--nef-radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--nef-transition);
  border: 2px solid transparent;
}

.nef-btn-back {
  background: transparent;
  border-color: var(--nef-border);
  color: var(--nef-text-muted);
}

.nef-btn-back:hover {
  border-color: var(--nef-text-muted);
  color: var(--nef-text);
}

.nef-btn-next {
  background: var(--nef-gold);
  color: #fff;
  margin-left: auto;
}

.nef-btn-next:hover {
  background: var(--nef-gold-dark);
  transform: translateX(2px);
}

.nef-btn-next:disabled {
  background: #ccc;
  cursor: not-allowed;
  transform: none;
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 640px) {
  .nef-panel {
    padding: 24px 20px 16px;
  }

  .nef-nav {
    padding: 0 20px 20px;
  }

  .nef-room-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nef-room-card--wide {
    grid-column: span 2;
  }

  .nef-thickness-grid {
    grid-template-columns: 1fr;
  }

  .nef-fields-row {
    flex-direction: column;
    align-items: stretch;
  }

  .nef-times {
    display: none;
  }

  .nef-result-amount {
    font-size: 32px;
  }

  .nef-step-title {
    font-size: 18px;
  }

  .nef-ps-label {
    display: none;
  }
}

@media (max-width: 400px) {
  .nef-room-grid {
    grid-template-columns: 1fr 1fr;
  }

  .nef-progress {
    padding: 14px 16px 0;
  }
}