:root {
  --font-body: "Open Sans", "Segoe UI", Arial, Helvetica, sans-serif;
  --font-heading: "Cabin", "Open Sans", "Segoe UI", Arial, Helvetica, sans-serif;
  --ink: #2f3336;
  --muted: #53565a;
  --line: #d9dde1;
  --line-strong: #aeb4ba;
  --paper: #f7f8fa;
  --panel: #ffffff;
  --field: #ffffff;
  --field-focus: #eff5fb;
  --accent: #e4002b;
  --accent-dark: #aa001f;
  --blue: #53565a;
  --account-blue: #348be2;
  --account-blue-hover: #498ddc;
  --success: #74bf2f;
  --success-dark: #5fa825;
  --success-soft: #e8f2df;
  --red-soft: #fff1f3;
  --shadow: 0 16px 36px rgba(47, 51, 54, 0.12);
  --shadow-control: inset 0 0 0 1px rgba(83, 86, 90, 0.14), 0 3px 10px rgba(83, 86, 90, 0.08);
  --radius: 8px;
  font-family: var(--font-body);
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(83, 86, 90, 0.055) 0 1px, transparent 1px 100%),
    linear-gradient(0deg, rgba(83, 86, 90, 0.045) 0 1px, transparent 1px 100%),
    var(--paper);
  background-size: 42px 42px;
  font-family: var(--font-body);
  letter-spacing: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: inherit;
}

.app-tabs {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(24, 33, 31, 0.08);
}

.app-tabs a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 12px;
  color: var(--muted);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.app-tabs a.active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--red-soft);
}

.app {
  min-height: calc(100vh - 61px);
  display: grid;
  grid-template-columns: minmax(340px, 430px) minmax(0, 1fr);
}

.sidebar {
  padding: 24px;
  background: rgba(255, 255, 255, 0.9);
  border-right: 1px solid var(--line);
}

.main {
  padding: 24px;
}

.brand-logo {
  width: 180px;
  max-width: 100%;
  display: block;
  margin-bottom: 18px;
}

.mast {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: start;
  margin-bottom: 18px;
}

h1 {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-heading);
  font-size: 25px;
  font-weight: 700;
  line-height: 1.08;
}

.status {
  align-self: start;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--success-soft);
  color: var(--success-dark);
  font-size: 12px;
  font-weight: 700;
}

.section,
.panel,
.actions-panel,
.metric {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.section {
  padding: 16px;
  margin-bottom: 16px;
}

.section-title,
.panel h2,
.actions-panel h2 {
  margin: 0 0 12px;
  color: var(--muted);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.field.full,
.check-field.full {
  grid-column: 1 / -1;
}

.field span,
.check-field span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  min-height: 38px;
  padding: 8px 10px;
  color: var(--ink);
  background: var(--field);
  border: 1px solid transparent;
  border-radius: 999px;
  box-shadow: var(--shadow-control);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(228, 0, 43, 0.16), var(--shadow-control);
}

.field small {
  min-height: 1.1rem;
  color: var(--muted);
  font-size: 11px;
}

.check-field {
  display: grid;
  grid-template-columns: auto 52px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  min-height: 70px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
}

.check-field input {
  width: 19px;
  height: 19px;
  min-height: 19px;
  accent-color: var(--accent);
}

.check-field img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.metric {
  padding: 14px;
  min-height: 92px;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.metric strong {
  display: block;
  font-size: 24px;
  line-height: 1.1;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: 18px;
  align-items: start;
}

.left-stack,
.right-stack {
  display: grid;
  gap: 18px;
  align-content: start;
}

.panel,
.actions-panel {
  padding: 18px;
}

.hero-image {
  display: block;
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
}

.secondary-image {
  max-height: 260px;
  margin-top: 12px;
}

.diagram-wrap {
  min-height: 420px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(194, 220, 249, 0.32), rgba(255, 255, 255, 0.88)),
    #ffffff;
  overflow: hidden;
}

svg {
  display: block;
  width: 100%;
  height: auto;
}

.halo-line {
  stroke: #aeb4ba;
  stroke-width: 7;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brace-line {
  stroke: var(--account-blue);
  stroke-width: 3;
  fill: none;
  stroke-linecap: round;
  opacity: 0.9;
}

.dim {
  stroke: #53565a;
  stroke-width: 1.4;
}

.guide {
  stroke: #9aa8a3;
  stroke-width: 1;
  stroke-dasharray: 5 6;
}

.dim-labels {
  fill: #53565a;
  font-size: 13px;
  font-weight: 800;
}

.insert-summary {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.description-box {
  width: 100%;
  min-height: 210px;
  margin-top: 0;
  background: #ffffff;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  resize: vertical;
}

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

.button-grid {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.cart-button {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  min-height: 50px;
  border: 1px solid var(--account-blue);
  border-radius: 999px;
  background: var(--account-blue);
  color: #ffffff;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.2;
  text-align: left;
  cursor: pointer;
  padding: 10px 14px;
  box-shadow: 0 4px 10px rgba(52, 139, 226, 0.24);
  text-decoration: none;
}

.cart-button:hover {
  border-color: var(--account-blue-hover);
  background: var(--account-blue-hover);
  box-shadow: 0 8px 18px rgba(52, 139, 226, 0.28);
}

.cart-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(52, 139, 226, 0.22), 0 4px 10px rgba(52, 139, 226, 0.24);
}

.cart-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.cart-button span {
  min-width: 0;
  font-weight: 600;
}

.cart-button small {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.72rem;
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
}

.cart-button.secondary {
  background: var(--account-blue);
  border-color: var(--account-blue);
  color: #ffffff;
}

.cart-button.secondary:hover {
  background: var(--account-blue-hover);
  border-color: var(--account-blue-hover);
  color: #ffffff;
}

.cart-button.combo {
  background: var(--account-blue);
  border-color: var(--account-blue);
}

.cart-button.combo:hover {
  background: var(--account-blue-hover);
  border-color: var(--account-blue-hover);
}

.url-box {
  width: 100%;
  min-height: 82px;
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  line-height: 1.45;
  resize: vertical;
}

.price-row {
  display: grid;
  gap: 10px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
}

.price-row.total {
  background: var(--success-soft);
  color: var(--success-dark);
  border-color: rgba(116, 191, 47, 0.38);
}

.price-label strong {
  display: block;
  line-height: 1.2;
}

.price-label span {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.price-cell {
  color: var(--muted);
  font-size: 13px;
}

.price-cell strong {
  display: block;
  color: var(--ink);
  font-size: 17px;
}

.actions {
  display: grid;
  gap: 8px;
}

.button {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 9px 12px;
  border: 1px solid var(--accent-dark);
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(228, 0, 43, 0.18);
}

.button.secondary {
  color: var(--muted);
  background: #ffffff;
  border-color: rgba(83, 86, 90, 0.32);
}

.button.combo {
  color: #ffffff;
  background: var(--accent);
  border-color: var(--accent-dark);
}

.button:hover {
  filter: brightness(0.96);
}

.button.secondary:hover {
  background: var(--red-soft);
  border-color: var(--accent);
  color: var(--accent);
  filter: none;
}

.button.combo:hover {
  background: #f65856;
  border-color: #f65856;
  filter: none;
}

@media (max-width: 1060px) {
  .app,
  .workspace {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .app-tabs,
  .summary-grid,
  .grid {
    grid-template-columns: 1fr;
  }

  .field.full,
  .check-field.full {
    grid-column: auto;
  }
}