:root {
  --bg: #f3efe8;
  --surface: #fffdf9;
  --surface-strong: #fff;
  --line: #ddd2c2;
  --text: #1f2933;
  --muted: #67727e;
  --brand: #0f5b52;
  --brand-soft: #dff1ed;
  --accent: #c67a2b;
  --accent-soft: #f9ead8;
  --shadow: 0 18px 45px rgba(31, 41, 51, 0.08);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --vc3d: #7c3aed;
  --vc3d-soft: #f3ebff;
  --fues: #dc2626;
  --fues-soft: #fdecec;
  --router: #2563eb;
  --router-soft: #eaf2ff;
  --emirror: #0f766e;
  --emirror-soft: #e7f7f4;
}

@keyframes quick-led-pulse {
  0% {
    opacity: 0.35;
    transform: scale(0.9);
  }
  50% {
    opacity: 1;
    transform: scale(1.08);
  }
  100% {
    opacity: 0.35;
    transform: scale(0.9);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(198, 122, 43, 0.14), transparent 28%),
    linear-gradient(180deg, #f8f5ef 0%, var(--bg) 100%);
  color: var(--text);
}

.page-shell {
  width: min(1280px, calc(100% - 32px));
  margin: 24px auto 40px;
}

.eyebrow,
.section-kicker,
.meta-label,
.price-label,
.summary-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
}

.eyebrow,
.section-kicker {
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 10px;
}

.section-header h2,
.summary-card h2 {
  margin: 0;
}

.top-dashboard {
  display: grid;
  gap: 18px;
}

.top-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.compact-meta {
  gap: 10px;
}

.meta-card {
  min-width: 140px;
  background: var(--surface);
  border: 1px solid rgba(221, 210, 194, 0.9);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  box-shadow: var(--shadow);
}

.meta-card.small {
  min-width: 110px;
  padding: 10px 12px;
  box-shadow: none;
}

.meta-label {
  display: block;
  color: var(--muted);
  margin-bottom: 6px;
}

.navigator-card {
  background: var(--surface);
  border: 1px solid rgba(221, 210, 194, 0.9);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
}

.mobile-quick-nav {
  display: none;
}

.workspace-layout {
  margin-top: 24px;
}

.dashboard-card,
.system-card {
  background: var(--surface);
  border: 1px solid rgba(221, 210, 194, 0.9);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.dashboard-card {
  padding: 20px;
}

.workspace-column {
  display: grid;
  gap: 18px;
}

.workspace-panel {
  background: var(--surface);
  border: 1px solid rgba(221, 210, 194, 0.9);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 20px;
}

.active-system-container {
  min-height: 320px;
  scroll-margin-top: 120px;
}

.section-header.compact {
  margin-top: 0;
}

.top-header {
  margin-bottom: 14px;
}

.system-nav-list {
  display: grid;
  gap: 10px;
}

.system-nav-list.horizontal {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.system-nav-item {
  appearance: none;
  width: 100%;
  border: 1px solid var(--line);
  border-left-width: 5px;
  border-radius: 16px;
  background: #fffdfa;
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  text-align: left;
  cursor: pointer;
}

.system-nav-item:hover {
  border-color: var(--brand);
  box-shadow: 0 8px 20px rgba(15, 91, 82, 0.08);
}

.system-nav-item.active {
  background: #f8fafc;
}

.system-nav-main {
  display: grid;
  gap: 4px;
}

.system-nav-title {
  font-size: 1rem;
  color: var(--text);
}

.system-nav-subline {
  color: var(--muted);
  font-size: 0.88rem;
}

.system-nav-state {
  align-self: center;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
  margin: 22px 0 16px;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #8a4f10;
  font-weight: 700;
  font-size: 0.88rem;
}

.system-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.system-card {
  padding: 22px;
}

.system-card.active {
  box-shadow: 0 18px 45px rgba(31, 41, 51, 0.1);
}

.system-card-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 20px;
  align-items: start;
}

.system-card-main {
  display: grid;
  gap: 16px;
}

.system-side {
  display: grid;
  gap: 14px;
}

.system-card-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.system-heading {
  position: relative;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.system-title {
  margin: 0;
  font-size: 1.35rem;
}

.system-code {
  display: inline-flex;
  margin-top: 6px;
  padding: 5px 9px;
  border-radius: 999px;
  background: #f6f3ee;
  border: 1px solid rgba(221, 210, 194, 0.9);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.system-short,
.system-long,
.summary-note {
  color: var(--muted);
  line-height: 1.65;
}

.system-inline-info {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 20;
  width: min(420px, calc(100vw - 56px));
  border-radius: 12px;
  background: #f5faf8;
  border: 1px solid rgba(15, 91, 82, 0.12);
  padding: 10px 12px;
  box-shadow: 0 14px 28px rgba(31, 41, 51, 0.12);
}

.system-inline-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.system-media {
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--brand-soft), #f6f8f9);
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed rgba(15, 91, 82, 0.25);
  position: sticky;
  top: 18px;
}

.info-icon-btn {
  appearance: none;
  border: 1px solid rgba(15, 91, 82, 0.18);
  background: #ffffff;
  color: var(--brand);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  flex: 0 0 auto;
}

.info-icon-btn:hover {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.info-icon-btn.active {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.media-placeholder {
  color: rgba(15, 91, 82, 0.76);
  font-weight: 700;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  padding: 16px;
}

.media-placeholder-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.media-placeholder-title {
  font-size: 1.05rem;
  color: var(--brand);
}

.system-nav-item[data-system-accent="vc3d"] {
  border-left-color: var(--vc3d);
}

.system-nav-item[data-system-accent="vc3d"].active {
  border-color: rgba(124, 58, 237, 0.35);
  background: linear-gradient(180deg, var(--vc3d-soft), #fff);
}

.system-nav-item[data-system-accent="fues"] {
  border-left-color: var(--fues);
}

.system-nav-item[data-system-accent="fues"].active {
  border-color: rgba(220, 38, 38, 0.3);
  background: linear-gradient(180deg, var(--fues-soft), #fff);
}

.system-nav-item[data-system-accent="router"] {
  border-left-color: var(--router);
}

.system-nav-item[data-system-accent="router"].active {
  border-color: rgba(37, 99, 235, 0.3);
  background: linear-gradient(180deg, var(--router-soft), #fff);
}

.system-nav-item[data-system-accent="emirror"] {
  border-left-color: var(--emirror);
}

.system-nav-item[data-system-accent="emirror"].active {
  border-color: rgba(15, 118, 110, 0.3);
  background: linear-gradient(180deg, var(--emirror-soft), #fff);
}

.system-card[data-system-accent="vc3d"] .system-title,
.system-card[data-system-accent="vc3d"] .price-value,
.system-card[data-system-accent="vc3d"] .info-icon-btn,
.active-config-chip[data-system-accent="vc3d"] {
  color: var(--vc3d);
}

.system-card[data-system-accent="vc3d"] .system-media {
  background: linear-gradient(135deg, var(--vc3d-soft), #fbf8ff);
  border-color: rgba(124, 58, 237, 0.22);
}

.system-card[data-system-accent="vc3d"].active {
  border-color: rgba(124, 58, 237, 0.32);
  box-shadow: 0 18px 45px rgba(124, 58, 237, 0.12);
}

.active-config-chip[data-system-accent="vc3d"] {
  background: var(--vc3d-soft);
  border-color: rgba(124, 58, 237, 0.14);
}

.selected-item[data-system-accent="vc3d"] {
  border-left: 4px solid var(--vc3d);
}

.system-card[data-system-accent="fues"] .system-title,
.system-card[data-system-accent="fues"] .price-value,
.system-card[data-system-accent="fues"] .info-icon-btn,
.active-config-chip[data-system-accent="fues"] {
  color: var(--fues);
}

.system-card[data-system-accent="fues"] .system-media {
  background: linear-gradient(135deg, var(--fues-soft), #fff8f8);
  border-color: rgba(220, 38, 38, 0.2);
}

.system-card[data-system-accent="fues"].active {
  border-color: rgba(220, 38, 38, 0.28);
  box-shadow: 0 18px 45px rgba(220, 38, 38, 0.12);
}

.active-config-chip[data-system-accent="fues"] {
  background: var(--fues-soft);
  border-color: rgba(220, 38, 38, 0.14);
}

.selected-item[data-system-accent="fues"] {
  border-left: 4px solid var(--fues);
}

.system-card[data-system-accent="router"] .system-title,
.system-card[data-system-accent="router"] .price-value,
.system-card[data-system-accent="router"] .info-icon-btn,
.active-config-chip[data-system-accent="router"] {
  color: var(--router);
}

.system-card[data-system-accent="router"] .system-media {
  background: linear-gradient(135deg, var(--router-soft), #f7faff);
  border-color: rgba(37, 99, 235, 0.2);
}

.system-card[data-system-accent="router"].active {
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow: 0 18px 45px rgba(37, 99, 235, 0.12);
}

.active-config-chip[data-system-accent="router"] {
  background: var(--router-soft);
  border-color: rgba(37, 99, 235, 0.14);
}

.selected-item[data-system-accent="router"] {
  border-left: 4px solid var(--router);
}

.system-card[data-system-accent="emirror"] .system-title,
.system-card[data-system-accent="emirror"] .price-value,
.system-card[data-system-accent="emirror"] .info-icon-btn,
.active-config-chip[data-system-accent="emirror"] {
  color: var(--emirror);
}

.system-card[data-system-accent="emirror"] .system-media {
  background: linear-gradient(135deg, var(--emirror-soft), #f7fcfb);
  border-color: rgba(15, 118, 110, 0.2);
}

.system-card[data-system-accent="emirror"].active {
  border-color: rgba(15, 118, 110, 0.28);
  box-shadow: 0 18px 45px rgba(15, 118, 110, 0.12);
}

.active-config-chip[data-system-accent="emirror"] {
  background: var(--emirror-soft);
  border-color: rgba(15, 118, 110, 0.14);
}

.selected-item[data-system-accent="emirror"] {
  border-left: 4px solid var(--emirror);
}

.detail-box {
  background: #f8f5ee;
  border-radius: var(--radius-md);
  padding: 14px 16px;
}

.system-info-panel {
  display: grid;
  gap: 12px;
}

.detail-box.muted {
  background: #fbfaf7;
}

.detail-box h4 {
  margin: 0 0 10px;
  font-size: 0.95rem;
}

.variant-section h4 {
  margin: 0 0 12px;
  font-size: 0.95rem;
}

.option-section h4 {
  margin: 0 0 12px;
  font-size: 0.95rem;
}

.highlight-list,
.note-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6;
}

.chip-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chip-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  font-weight: 700;
}

.recommended-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.recommended-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 11px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #8a4f10;
  font-size: 0.85rem;
  font-weight: 700;
}

.highlight-box {
  background: #f5faf8;
}

.variant-groups {
  display: grid;
  gap: 14px;
}

.option-groups {
  display: grid;
  gap: 14px;
}

.variant-group {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px;
  background: #fffdfa;
}

.option-group {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px;
  background: #fffdfa;
}

.variant-group-title {
  margin: 0 0 10px;
  font-size: 0.88rem;
  color: var(--text);
}

.option-group-title {
  margin: 0 0 8px;
  font-size: 0.88rem;
  color: var(--text);
}

.option-group-copy {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
  margin: 0 0 12px;
}

.option-group-copy:empty {
  display: none;
}

.option-helper-note {
  border-radius: var(--radius-md);
  background: #f6f3ee;
  border: 1px solid rgba(221, 210, 194, 0.9);
  padding: 12px 14px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.option-breakdown {
  display: grid;
  gap: 10px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(221, 210, 194, 0.8);
}

.option-breakdown-row {
  display: grid;
  gap: 4px;
  padding: 10px 12px;
  border-radius: 12px;
  background: #f8f5ee;
}

.option-breakdown-row strong {
  color: var(--text);
  font-size: 0.92rem;
}

.option-breakdown-row span {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.option-breakdown-total {
  color: var(--brand) !important;
  font-weight: 700;
}

.option-breakdown-empty {
  color: var(--muted);
  font-size: 0.9rem;
}

.option-breakdown-row.auto-add {
  margin-top: 12px;
  border: 1px solid rgba(221, 210, 194, 0.8);
}

.variant-options {
  display: grid;
  gap: 8px;
}

.quantity-control {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px dashed rgba(221, 210, 194, 0.8);
  padding-top: 12px;
}

.quantity-control:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.quantity-control-text strong {
  display: block;
  margin-bottom: 4px;
}

.quantity-control-text span {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.quantity-picker {
  display: flex;
  align-items: center;
  gap: 8px;
}

.quantity-select,
.slot-select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  background: #fff;
  color: var(--text);
  font-size: 0.95rem;
}

.quantity-price {
  white-space: nowrap;
  font-weight: 700;
  color: var(--brand);
  font-size: 0.9rem;
}

.slot-grid {
  display: grid;
  gap: 10px;
}

.slot-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  align-items: center;
}

.slot-row.fues-custom {
  grid-template-columns: 1fr;
  align-items: stretch;
}

.slot-row-label {
  color: var(--text);
  font-weight: 700;
  font-size: 0.92rem;
}

.slot-custom-input,
.variant-custom-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  background: #fff;
  color: var(--text);
  font-size: 0.92rem;
}

.slot-custom-input::placeholder,
.variant-custom-input::placeholder {
  color: var(--muted);
}

.variant-custom-wrap {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed rgba(221, 210, 194, 0.8);
}

.variant-custom-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.variant-option {
  display: flex;
  align-items: start;
  gap: 10px;
  width: 100%;
  padding: 10px 0;
  border-top: 1px dashed rgba(221, 210, 194, 0.8);
  position: relative;
}

.variant-option:first-child {
  border-top: 0;
  padding-top: 0;
}

.variant-option input {
  margin-top: 2px;
  accent-color: var(--brand);
}

.variant-option-text {
  flex: 1;
  position: relative;
}

.option-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.inline-info-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.variant-option-text strong {
  display: block;
}

.variant-option-text .info-trigger-text {
  display: inline-block;
  cursor: help;
  text-decoration: underline dotted rgba(15, 91, 82, 0.45);
  text-underline-offset: 3px;
}

.variant-option-text .info-trigger-text:hover,
.variant-option-text .info-trigger-text:focus-visible,
.variant-option-text .info-trigger-text.active {
  color: var(--brand);
  text-decoration-color: var(--brand);
  outline: none;
}

.variant-option-text span {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.inline-info-btn {
  appearance: none;
  border: 1px solid rgba(15, 91, 82, 0.18);
  background: #fff;
  color: var(--brand);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  flex: 0 0 auto;
  padding: 0;
}

.inline-info-btn:hover {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.inline-info-btn.active {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.inline-info-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 20;
  width: min(320px, calc(100vw - 64px));
  border-radius: 10px;
  background: #f5faf8;
  border: 1px solid rgba(15, 91, 82, 0.12);
  padding: 10px 12px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
  box-shadow: 0 14px 28px rgba(31, 41, 51, 0.12);
}

.variant-floating-info-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 25;
  width: min(320px, calc(100vw - 64px));
  border-radius: 10px;
  background: #f5faf8;
  border: 1px solid rgba(15, 91, 82, 0.12);
  padding: 10px 12px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
  box-shadow: 0 14px 28px rgba(31, 41, 51, 0.12);
}

.variant-option-price {
  white-space: normal;
  font-weight: 700;
  color: var(--brand);
  font-size: 0.9rem;
  max-width: 170px;
  text-align: right;
}

.system-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.detail-btn,
.primary-btn,
.secondary-btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 12px 16px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
}

.detail-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
}

.detail-btn:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.detail-btn.active {
  border-color: var(--brand);
  color: var(--brand);
  background: var(--brand-soft);
}

.price-box {
  text-align: right;
}

.price-label {
  display: block;
  color: var(--muted);
  margin-bottom: 4px;
}

.price-value {
  font-size: 1.08rem;
}

.price-subvalue {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.84rem;
}

.hidden {
  display: none;
}

.toggle {
  position: relative;
  width: 68px;
  height: 32px;
  flex: 0 0 auto;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-track {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: #ced5db;
  transition: background 0.2s ease;
}

.toggle-track::before {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  left: 4px;
  top: 4px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 4px 12px rgba(31, 41, 51, 0.15);
  transition: transform 0.2s ease;
}

.toggle input:checked + .toggle-track {
  background: var(--brand);
}

.toggle input:checked + .toggle-track::before {
  transform: translateX(24px);
}

.toggle-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 10px 0 12px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #5f6974;
  pointer-events: none;
  transition: color 0.2s ease, justify-content 0.2s ease, padding 0.2s ease;
}

.toggle input:checked ~ .toggle-text {
  justify-content: flex-start;
  padding: 0 12px 0 10px;
  color: #ffffff;
}

.summary-card {
  padding: 20px;
}

.active-config-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.workspace-chips {
  margin-top: 0;
  min-height: 34px;
  scroll-margin-top: 120px;
}

.active-config-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 10px;
  border-radius: 999px;
  background: #f4faf8;
  border: 1px solid rgba(15, 91, 82, 0.12);
  color: var(--brand);
  font-size: 0.85rem;
  font-weight: 700;
}

.summary-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 18px;
}

.summary-stat {
  border-radius: var(--radius-md);
  background: #f8f5ee;
  padding: 14px;
}

.summary-label {
  display: block;
  color: var(--muted);
  margin-bottom: 6px;
}

.selected-systems {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.selected-systems.empty {
  color: var(--muted);
  padding: 14px 0 2px;
}

.selected-item {
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  padding: 12px 14px;
  background: var(--surface-strong);
}

.selected-item-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.selected-item strong {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
  cursor: help;
}

.selected-item-price {
  display: flex;
  flex-direction: column;
  align-items: end;
  gap: 2px;
  white-space: nowrap;
}

.selected-item-price strong {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text);
  cursor: default;
}

.selected-item-price span {
  font-size: 0.8rem;
  color: var(--muted);
}

.selected-subline {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.selected-item-title {
  font-size: 0.98rem;
}

.summary-header h2 {
  margin: 0;
}

.summary-inline-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0 6px;
  border-bottom: 1px solid rgba(221, 210, 194, 0.8);
}

.summary-inline-item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.summary-inline-item strong {
  font-size: 1rem;
}

.summary-inline-item.total strong {
  color: var(--text);
}

.process-panel {
  display: grid;
  gap: 14px;
}

.summary-actions {
  display: grid;
  gap: 10px;
  margin-top: 0;
}

.status-panel {
  margin-top: 0;
  border-radius: var(--radius-md);
  background: #f8f5ee;
  padding: 14px;
}

.status-panel strong {
  display: block;
  margin-top: 4px;
}

.status-message {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.validity-card {
  margin-left: auto;
  min-width: 180px;
}

.primary-btn {
  background: var(--brand);
  color: #fff;
}

.secondary-btn {
  background: var(--accent-soft);
  color: #8a4f10;
}

.primary-btn:disabled,
.secondary-btn:disabled {
  opacity: 0.48;
  cursor: not-allowed;
}

@media (max-width: 980px) {
  .mobile-quick-nav {
    position: sticky;
    top: 14px;
    z-index: 40;
    margin-top: 18px;
    margin-bottom: 18px;
    padding: 8px;
    border: 1px solid rgba(221, 210, 194, 0.92);
    border-radius: 18px;
    background: rgba(255, 253, 249, 0.96);
    box-shadow: 0 12px 26px rgba(31, 41, 51, 0.12);
    backdrop-filter: blur(10px);
  }

  .mobile-quick-nav.visible {
    display: flex;
    gap: 8px;
    justify-content: space-between;
  }

  .quick-nav-btn {
    appearance: none;
    flex: 1;
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fffdfa;
    padding: 8px 10px;
    display: grid;
    place-items: center;
    text-align: center;
    cursor: pointer;
    position: relative;
    opacity: 0.52;
    transition: opacity 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  }

  .quick-nav-btn.active {
    box-shadow: 0 10px 20px rgba(31, 41, 51, 0.1);
    transform: translateY(-1px);
    opacity: 1;
  }

  .quick-nav-btn.selected {
    opacity: 0.88;
  }

  .quick-nav-btn[data-system-accent="vc3d"] {
    border-top: 3px solid var(--vc3d);
  }

  .quick-nav-btn[data-system-accent="fues"] {
    border-top: 3px solid var(--fues);
  }

  .quick-nav-btn[data-system-accent="router"] {
    border-top: 3px solid var(--router);
  }

  .quick-nav-btn[data-system-accent="emirror"] {
    border-top: 3px solid var(--emirror);
  }

  .quick-nav-btn.active[data-system-accent="vc3d"] {
    background: linear-gradient(180deg, var(--vc3d-soft), #fff);
    border-color: rgba(124, 58, 237, 0.28);
  }

  .quick-nav-btn.active[data-system-accent="fues"] {
    background: linear-gradient(180deg, var(--fues-soft), #fff);
    border-color: rgba(220, 38, 38, 0.24);
  }

  .quick-nav-btn.active[data-system-accent="router"] {
    background: linear-gradient(180deg, var(--router-soft), #fff);
    border-color: rgba(37, 99, 235, 0.24);
  }

  .quick-nav-btn.active[data-system-accent="emirror"] {
    background: linear-gradient(180deg, var(--emirror-soft), #fff);
    border-color: rgba(15, 118, 110, 0.24);
  }

  .quick-nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    margin: 0 auto;
    border-radius: 999px;
    background: #f6f3ee;
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    position: relative;
  }

  .quick-nav-btn[data-system-accent="vc3d"] .quick-nav-icon {
    background: var(--vc3d-soft);
    color: var(--vc3d);
  }

  .quick-nav-btn[data-system-accent="fues"] .quick-nav-icon {
    background: var(--fues-soft);
    color: var(--fues);
  }

  .quick-nav-btn[data-system-accent="router"] .quick-nav-icon {
    background: var(--router-soft);
    color: var(--router);
  }

  .quick-nav-btn[data-system-accent="emirror"] .quick-nav-icon {
    background: var(--emirror-soft);
    color: var(--emirror);
  }

  .quick-nav-label {
    display: none;
  }

  .quick-nav-state {
    position: absolute;
    right: 6px;
    bottom: 6px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(103, 114, 126, 0.32);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.75);
  }

  .quick-nav-btn.selected .quick-nav-state {
    background: var(--brand);
  }

  .quick-nav-btn[data-system-accent="vc3d"] .quick-nav-state {
    background: rgba(124, 58, 237, 0.32);
  }

  .quick-nav-btn.selected[data-system-accent="vc3d"] .quick-nav-state {
    background: var(--vc3d);
  }

  .quick-nav-btn[data-system-accent="fues"] .quick-nav-state {
    background: rgba(220, 38, 38, 0.3);
  }

  .quick-nav-btn.selected[data-system-accent="fues"] .quick-nav-state {
    background: var(--fues);
  }

  .quick-nav-btn[data-system-accent="router"] .quick-nav-state {
    background: rgba(37, 99, 235, 0.3);
  }

  .quick-nav-btn.selected[data-system-accent="router"] .quick-nav-state {
    background: var(--router);
  }

  .quick-nav-btn[data-system-accent="emirror"] .quick-nav-state {
    background: rgba(15, 118, 110, 0.3);
  }

  .quick-nav-btn.selected[data-system-accent="emirror"] .quick-nav-state {
    background: var(--emirror);
  }

  .quick-nav-btn[data-system-accent="fues"] .quick-nav-icon::before,
  .quick-nav-btn[data-system-accent="fues"] .quick-nav-icon::after {
    content: "";
    position: absolute;
  }

  .quick-nav-btn[data-system-accent="fues"] .quick-nav-icon::before {
    width: 16px;
    height: 9px;
    bottom: 8px;
    left: 7px;
    border-radius: 4px;
    border: 2px solid var(--fues);
    background: transparent;
  }

  .quick-nav-btn.selected[data-system-accent="fues"] .quick-nav-icon::after {
    width: 6px;
    height: 6px;
    right: 5px;
    top: 5px;
    border-radius: 50%;
    background: var(--fues);
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.14);
    animation: quick-led-pulse 1.6s ease-in-out infinite;
  }

  .quick-nav-btn[data-system-accent="fues"] .quick-nav-icon span {
    position: absolute;
    width: 8px;
    height: 2px;
    background: var(--fues);
    top: 11px;
    left: 5px;
    transform: rotate(-28deg);
    transform-origin: left center;
  }

  .quick-nav-btn[data-system-accent="router"] .quick-nav-icon.router-icon {
    background: transparent;
  }

  .quick-nav-btn[data-system-accent="router"] .quick-nav-icon.router-icon::before,
  .quick-nav-btn[data-system-accent="router"] .quick-nav-icon.router-icon::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    border: 2px solid transparent;
    border-top-color: var(--router);
    border-radius: 50%;
  }

  .quick-nav-btn[data-system-accent="router"] .quick-nav-icon.router-icon::before {
    top: 7px;
    width: 20px;
    height: 20px;
  }

  .quick-nav-btn[data-system-accent="router"] .quick-nav-icon.router-icon::after {
    top: 11px;
    width: 12px;
    height: 12px;
  }

  .quick-nav-btn[data-system-accent="router"] .quick-nav-icon.router-icon span {
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--router);
  }

  .quick-nav-btn[data-system-accent="emirror"] .quick-nav-icon.emirror-icon {
    overflow: visible;
  }

  .quick-nav-btn[data-system-accent="emirror"] .quick-nav-icon.emirror-icon::before,
  .quick-nav-btn[data-system-accent="emirror"] .quick-nav-icon.emirror-icon::after {
    content: "";
    position: absolute;
    top: 7px;
    width: 10px;
    height: 14px;
    border: 2px solid var(--emirror);
    border-radius: 7px 7px 6px 6px;
    background: rgba(255, 255, 255, 0.96);
  }

  .quick-nav-btn[data-system-accent="emirror"] .quick-nav-icon.emirror-icon::before {
    left: 5px;
    transform: skewY(-10deg);
  }

  .quick-nav-btn[data-system-accent="emirror"] .quick-nav-icon.emirror-icon::after {
    right: 5px;
    transform: skewY(10deg);
  }

  .quick-nav-btn[data-system-accent="emirror"] .quick-nav-icon.emirror-icon span {
    position: absolute;
    left: 50%;
    top: 15px;
    width: 8px;
    height: 2px;
    transform: translateX(-50%);
    background: var(--emirror);
    box-shadow:
      -9px -4px 0 0 var(--emirror),
      9px -4px 0 0 var(--emirror);
  }

  .system-card-layout {
    grid-template-columns: 1fr;
  }

  .system-media {
    position: static;
    min-height: 170px;
  }

  .system-nav-list.horizontal {
    grid-template-columns: 1fr;
  }

  .slot-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 1280px);
    margin-top: 10px;
  }

  .dashboard-card,
  .summary-card,
  .navigator-card,
  .meta-card,
  .workspace-panel,
  .system-card {
    padding: 14px;
  }

  .top-meta {
    gap: 8px;
  }

  .meta-card.small {
    min-width: 92px;
    padding: 8px 10px;
  }

  .meta-label,
  .eyebrow,
  .section-kicker,
  .price-label,
  .summary-label {
    font-size: 0.66rem;
    letter-spacing: 0.1em;
  }

  .system-nav-item {
    padding: 11px 12px;
    gap: 10px;
  }

  .mobile-quick-nav {
    top: 10px;
    padding: 7px;
  }

  .quick-nav-btn {
    padding: 7px 8px;
  }

  .quick-nav-icon {
    width: 30px;
    height: 30px;
    font-size: 0.7rem;
  }

  .system-nav-title {
    font-size: 0.92rem;
  }

  .system-nav-subline {
    font-size: 0.8rem;
  }

  .system-nav-state {
    font-size: 0.72rem;
  }

  .system-title {
    font-size: 1.08rem;
  }

  .system-code {
    font-size: 0.68rem;
    padding: 4px 8px;
  }

  .system-short,
  .system-long,
  .system-inline-text,
  .summary-note,
  .option-group-copy,
  .status-message,
  .variant-option-text span,
  .quantity-control-text span,
  .selected-subline,
  .option-breakdown-row span,
  .option-breakdown-empty,
  .inline-info-panel,
  .variant-floating-info-panel {
    font-size: 0.82rem;
    line-height: 1.45;
  }

  .price-value {
    font-size: 0.98rem;
  }

  .price-subvalue,
  .selected-item-price span {
    font-size: 0.76rem;
  }

  .selected-item-price strong,
  .summary-inline-item strong,
  .selected-item-title,
  .variant-option-text strong,
  .slot-row-label,
  .option-breakdown-row strong {
    font-size: 0.88rem;
  }

  .variant-option-price,
  .quantity-price,
  .active-config-chip,
  .recommended-chip,
  .section-badge,
  .detail-btn,
  .primary-btn,
  .secondary-btn,
  .quantity-select,
  .slot-select {
    font-size: 0.82rem;
  }

  .detail-btn,
  .primary-btn,
  .secondary-btn {
    padding: 10px 13px;
  }

  .active-config-chip {
    padding: 6px 9px;
  }

  .active-system-container,
  .workspace-chips {
    scroll-margin-top: 140px;
  }

  .section-header,
  .system-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .summary-stats {
    grid-template-columns: 1fr;
  }

  .validity-card {
    margin-left: 0;
    min-width: 0;
  }

  .summary-inline-stats {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Theme alignment with landing page */
:root {
  --bg: #07111f;
  --surface: rgba(10, 20, 36, 0.82);
  --surface-strong: rgba(13, 26, 45, 0.94);
  --line: rgba(121, 210, 255, 0.18);
  --line-strong: rgba(121, 210, 255, 0.34);
  --text: #eef7ff;
  --muted: #98abc1;
  --brand: #00c2ff;
  --brand-soft: rgba(14, 43, 62, 0.72);
  --accent: #7af0ff;
  --accent-soft: rgba(16, 31, 53, 0.86);
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
  --glow: 0 0 0 1px rgba(122, 240, 255, 0.12), 0 20px 60px rgba(0, 75, 140, 0.22);
  --vc3d: #8e6bff;
  --vc3d-soft: rgba(142, 107, 255, 0.12);
  --fues: #ff4f6d;
  --fues-soft: rgba(255, 79, 109, 0.12);
  --router: #2dd4ff;
  --router-soft: rgba(45, 212, 255, 0.12);
  --emirror: #2af5c2;
  --emirror-soft: rgba(42, 245, 194, 0.12);
}

body {
  background:
    radial-gradient(circle at 20% 0%, rgba(44, 224, 255, 0.18), transparent 24%),
    radial-gradient(circle at 85% 10%, rgba(142, 107, 255, 0.18), transparent 20%),
    radial-gradient(circle at 50% 100%, rgba(42, 245, 194, 0.12), transparent 24%),
    linear-gradient(180deg, #040914 0%, var(--bg) 38%, #02060d 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(122, 240, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 240, 255, 0.035) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.48), transparent 92%);
}

.meta-card,
.navigator-card,
.dashboard-card,
.workspace-panel,
.system-card,
.mobile-quick-nav {
  background: var(--surface);
  border-color: var(--line) !important;
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(22px);
}

.navigator-card,
.workspace-panel,
.dashboard-card,
.system-card,
.meta-card {
  position: relative;
  overflow: hidden;
}

.navigator-card::before,
.workspace-panel::before,
.dashboard-card::before,
.system-card::before,
.meta-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 180px;
  height: 1px;
  background: linear-gradient(90deg, rgba(122, 240, 255, 0.8), transparent);
}

.section-badge,
.recommended-chip,
.system-code,
.option-helper-note,
.summary-stat,
.status-panel,
.detail-box,
.detail-box.muted,
.option-breakdown-row,
.variant-group,
.option-group,
.selected-item,
.quick-nav-btn,
.system-nav-item,
.quantity-select,
.slot-select,
.slot-custom-input,
.variant-custom-input,
.inline-info-btn,
.info-icon-btn,
.system-inline-info,
.inline-info-panel,
.variant-floating-info-panel,
.active-config-chip {
  background: rgba(13, 26, 45, 0.86);
  border-color: rgba(121, 210, 255, 0.16) !important;
  color: var(--text);
}

.system-nav-item.active {
  background: rgba(17, 34, 58, 0.96);
}

.system-nav-item:hover,
.detail-btn:hover,
.quick-nav-btn.active,
.guide-card:hover {
  border-color: var(--line-strong) !important;
}

.system-card[data-system-accent="vc3d"] .system-media,
.system-nav-item[data-system-accent="vc3d"].active,
.quick-nav-btn.active[data-system-accent="vc3d"] {
  background: linear-gradient(180deg, var(--vc3d-soft), rgba(13, 26, 45, 0.96));
}

.system-card[data-system-accent="fues"] .system-media,
.system-nav-item[data-system-accent="fues"].active,
.quick-nav-btn.active[data-system-accent="fues"] {
  background: linear-gradient(180deg, var(--fues-soft), rgba(13, 26, 45, 0.96));
}

.system-card[data-system-accent="router"] .system-media,
.system-nav-item[data-system-accent="router"].active,
.quick-nav-btn.active[data-system-accent="router"] {
  background: linear-gradient(180deg, var(--router-soft), rgba(13, 26, 45, 0.96));
}

.system-card[data-system-accent="emirror"] .system-media,
.system-nav-item[data-system-accent="emirror"].active,
.quick-nav-btn.active[data-system-accent="emirror"] {
  background: linear-gradient(180deg, var(--emirror-soft), rgba(13, 26, 45, 0.96));
}

.system-media {
  border-color: rgba(121, 210, 255, 0.22) !important;
  background: linear-gradient(135deg, rgba(14, 43, 62, 0.82), rgba(8, 16, 29, 0.94));
}

.media-placeholder,
.media-placeholder-title,
.price-value,
.option-breakdown-total,
.inline-info-btn,
.info-icon-btn,
.detail-btn.active,
.detail-btn:hover {
  color: var(--brand);
}

.section-badge,
.recommended-chip {
  color: #dff8ff;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--brand));
  color: #03111d;
}

.secondary-btn {
  background: rgba(16, 31, 53, 0.92);
  color: #dff8ff;
  border: 1px solid rgba(122, 240, 255, 0.16);
}

.mobile-quick-nav {
  background: rgba(7, 17, 31, 0.96);
}

.quick-nav-icon {
  background: rgba(8, 16, 29, 0.92);
}