/* ============================================================
   Solar Quote Builder — Renew Aus Tech (black / grey theme)
   ============================================================ */

.sqb {
  --sqb-primary: #0D0D0D;
  --sqb-primary-light: #1A1A1A;
  --sqb-bg: #FFFFFF;
  --sqb-bg-alt: #F5F5F5;
  --sqb-border: #E5E5E5;
  --sqb-text: #111111;
  --sqb-muted: #666666;
  --sqb-success: #1a7a3a;
  --sqb-success-bg: #e8f6ec;
  --sqb-error: #b42318;
  --sqb-error-bg: #fef3f2;
  --sqb-radius: 14px;
  --sqb-radius-lg: 20px;
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--sqb-text);
  max-width: 880px;
  margin: 0 auto;
  background: var(--sqb-bg);
  border: 1px solid var(--sqb-border);
  border-radius: var(--sqb-radius-lg);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

/* Header band */
.sqb__header {
  background: linear-gradient(145deg, #1A1A1A 0%, #0D0D0D 50%, #000000 100%);
  color: #fff;
  padding: 1.75rem 1.5rem 1.5rem;
  text-align: center;
}

.sqb__eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.75;
  margin-bottom: 0.5rem;
}

.sqb__title {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  margin: 0 0 0.4rem;
  letter-spacing: -0.02em;
}

.sqb__subtitle {
  font-size: 0.9rem;
  opacity: 0.85;
  margin: 0;
}

/* Progress */
.sqb__progress {
  padding: 1rem 1.5rem 0;
  background: var(--sqb-bg);
}

.sqb__progress-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.5rem;
  font-size: 0.8125rem;
}

.sqb__progress-count {
  font-weight: 600;
  color: var(--sqb-text);
}

.sqb__progress-label {
  color: var(--sqb-muted);
  text-align: right;
}

.sqb__progress-bar {
  height: 4px;
  background: var(--sqb-border);
  border-radius: 999px;
  overflow: hidden;
}

.sqb__progress-fill {
  height: 100%;
  background: var(--sqb-primary);
  border-radius: 999px;
  transition: width 0.35s ease;
}

/* Body */
.sqb__body {
  padding: 1.5rem;
}

.sqb__question {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
  letter-spacing: -0.01em;
}

.sqb__hint {
  font-size: 0.875rem;
  color: var(--sqb-muted);
  margin: 0 0 1.25rem;
}

/* Option grids */
.sqb__grid {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.sqb__grid--2 { grid-template-columns: 1fr; }
.sqb__grid--3 { grid-template-columns: 1fr; }
.sqb__grid--4 { grid-template-columns: 1fr; }
.sqb__grid--5 { grid-template-columns: 1fr; }

@media (min-width: 480px) {
  .sqb__grid--2 { grid-template-columns: repeat(2, 1fr); }
  .sqb__grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 640px) {
  .sqb__grid--3 { grid-template-columns: repeat(3, 1fr); }
  .sqb__grid--4 { grid-template-columns: repeat(2, 1fr); }
  .sqb__grid--5 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .sqb__grid--4 { grid-template-columns: repeat(2, 1fr); }
  .sqb__grid--5 { grid-template-columns: repeat(3, 1fr); }
}

/* Option cards */
.sqb__opt {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  width: 100%;
  padding: 1rem 1.1rem;
  background: var(--sqb-bg);
  border: 1.5px solid var(--sqb-border);
  border-radius: var(--sqb-radius);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s, background 0.2s;
  font-family: inherit;
  color: inherit;
}

.sqb__opt:hover {
  border-color: #bbb;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

.sqb__opt.is-selected {
  border-color: var(--sqb-primary);
  background: linear-gradient(180deg, #fafafa 0%, #f0f0f0 100%);
  box-shadow: 0 0 0 3px rgba(13, 13, 13, 0.08);
}

.sqb__opt-check {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--sqb-primary);
  color: #fff;
  font-size: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.6);
  transition: opacity 0.2s, transform 0.2s;
}

.sqb__opt.is-selected .sqb__opt-check {
  opacity: 1;
  transform: scale(1);
}

.sqb__opt-icon {
  font-size: 1.35rem;
  margin-bottom: 0.4rem;
  line-height: 1;
}

.sqb__opt-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}

.sqb__opt-desc {
  font-size: 0.8rem;
  color: var(--sqb-muted);
  line-height: 1.4;
}

.sqb__opt-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--sqb-bg-alt);
  border: 1px solid var(--sqb-border);
  border-radius: 4px;
  padding: 0.15rem 0.45rem;
  margin-bottom: 0.4rem;
  color: var(--sqb-muted);
}

.sqb__opt-tag--popular {
  background: var(--sqb-primary);
  border-color: var(--sqb-primary);
  color: #fff;
}

.sqb__opt-price {
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 0.35rem;
}

.sqb__opt-panels {
  font-size: 0.75rem;
  color: var(--sqb-muted);
  margin-top: 0.15rem;
}

.sqb__opt-ribbon {
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--sqb-primary);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 0 0 6px 6px;
  white-space: nowrap;
}

.sqb__opt.has-ribbon {
  padding-top: 1.5rem;
}

/* Expanded recommendation inside usage cards */
.sqb__opt-rec {
  display: none;
  width: 100%;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--sqb-border);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.sqb__opt.is-selected .sqb__opt-rec {
  display: block;
}

.sqb__opt-rec strong {
  display: block;
  margin-bottom: 0.25rem;
}

/* Callouts */
.sqb__callout {
  background: var(--sqb-bg-alt);
  border-left: 3px solid var(--sqb-primary);
  border-radius: 0 var(--sqb-radius) var(--sqb-radius) 0;
  padding: 0.9rem 1rem;
  font-size: 0.85rem;
  color: var(--sqb-muted);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.sqb__callout strong {
  color: var(--sqb-text);
}

.sqb__callout--warn {
  border-left-color: #b45309;
  background: #fffbeb;
  color: #78350f;
}

.sqb__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.6rem;
}

.sqb__chip {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  background: #fff;
  border: 1px solid var(--sqb-border);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  color: var(--sqb-text);
}

/* Quote so far */
.sqb__sofar {
  background: var(--sqb-bg-alt);
  border-radius: var(--sqb-radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
}

.sqb__sofar-label {
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--sqb-muted);
  margin-bottom: 0.5rem;
}

.sqb__sofar-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.sqb__sofar-chip {
  background: #fff;
  border: 1px solid var(--sqb-border);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  color: var(--sqb-text);
}

/* Upload rows */
.sqb__uploads {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}

.sqb__upload {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--sqb-border);
  border-radius: var(--sqb-radius);
  background: var(--sqb-bg);
}

.sqb__upload-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.sqb__upload-info {
  flex: 1;
  min-width: 0;
}

.sqb__upload-title {
  font-weight: 600;
  font-size: 0.875rem;
}

.sqb__upload-help {
  font-size: 0.75rem;
  color: var(--sqb-muted);
}

.sqb__upload-file {
  font-size: 0.75rem;
  color: var(--sqb-success);
  margin-top: 0.2rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.sqb__upload-file button {
  background: none;
  border: none;
  color: var(--sqb-muted);
  cursor: pointer;
  font-size: 0.7rem;
  text-decoration: underline;
  padding: 0;
  font-family: inherit;
}

.sqb__upload-btn {
  flex-shrink: 0;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border: 1.5px solid var(--sqb-primary);
  border-radius: 8px;
  background: #fff;
  color: var(--sqb-primary);
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}

.sqb__upload-btn:hover {
  background: var(--sqb-primary);
  color: #fff;
}

.sqb__upload input[type="file"] {
  display: none;
}

/* Contact form */
.sqb__summary-box {
  background: var(--sqb-bg-alt);
  border-radius: var(--sqb-radius);
  padding: 1rem 1.15rem;
  margin-bottom: 1.5rem;
}

.sqb__summary-box h3 {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--sqb-muted);
  margin: 0 0 0.75rem;
}

.sqb__summary-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sqb__summary-list li {
  display: flex;
  gap: 0.5rem;
  font-size: 0.875rem;
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--sqb-border);
}

.sqb__summary-list li:last-child {
  border-bottom: none;
}

.sqb__summary-list .label {
  color: var(--sqb-muted);
  min-width: 7rem;
  flex-shrink: 0;
}

.sqb__summary-savings {
  margin-top: 0.75rem;
  padding: 0.65rem 0.85rem;
  background: var(--sqb-success-bg);
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--sqb-success);
  font-weight: 600;
}

.sqb__form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.sqb__field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.sqb__field input,
.sqb__field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1.5px solid var(--sqb-border);
  border-radius: 8px;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--sqb-text);
  background: #fff;
  transition: border-color 0.15s;
  box-sizing: border-box;
}

.sqb__field input:focus,
.sqb__field textarea:focus {
  outline: none;
  border-color: var(--sqb-primary);
  box-shadow: 0 0 0 3px rgba(13, 13, 13, 0.08);
}

.sqb__field textarea {
  min-height: 90px;
  resize: vertical;
}

.sqb__honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

.sqb__error {
  background: var(--sqb-error-bg);
  color: var(--sqb-error);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  line-height: 1.45;
}

/* Nav row */
.sqb__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--sqb-border);
  margin-top: 0.5rem;
}

.sqb__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.7rem 1.35rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, opacity 0.15s;
  min-height: 44px;
}

.sqb__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.sqb__btn--primary {
  background: var(--sqb-primary);
  color: #fff;
}

.sqb__btn--primary:hover:not(:disabled) {
  background: var(--sqb-primary-light);
}

.sqb__btn--ghost {
  background: transparent;
  color: var(--sqb-muted);
  border: 1.5px solid var(--sqb-border);
}

.sqb__btn--ghost:hover:not(:disabled) {
  border-color: #bbb;
  color: var(--sqb-text);
}

.sqb__btn--full {
  width: 100%;
}

/* Done screen */
.sqb__done {
  padding: 2.5rem 1.5rem;
  text-align: center;
}

.sqb__done-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--sqb-success-bg);
  color: var(--sqb-success);
  font-size: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

.sqb__done h2 {
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
}

.sqb__done p {
  color: var(--sqb-muted);
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}

.sqb__done .sqb__summary-box {
  text-align: left;
  margin-bottom: 1.5rem;
}

.sqb__note {
  font-size: 0.8rem;
  color: var(--sqb-muted);
  margin: -0.5rem 0 1.25rem;
  line-height: 1.45;
}

/* Loading spinner */
.sqb__spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: sqb-spin 0.6s linear infinite;
}

@keyframes sqb-spin {
  to { transform: rotate(360deg); }
}