:root {
  --bg: #fbfaf8;
  --panel: #ffffff;
  --text: #33374a;
  --muted: #6e7180;
  --line: #ded8cf;
  --accent: #8d7966;
  --accent-dark: #cca674;
  --soft: #f2eee8;
  --error: #9f342c;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.page-shell,
.configurator-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.configurator-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  align-items: start;
}

.hero-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  color: var(--text);
  letter-spacing: 0;
}

h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 6vw, 4.2rem);
  font-weight: 400;
  line-height: 0.96;
}

h2 {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
}

.panel,
.selection-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.panel + .panel {
  margin-top: 24px;
}

.module-form {
  display: grid;
  gap: 14px;
}

.order-module {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  overflow: visible;
}

.module-title {
  position: sticky;
  top: 0;
  z-index: 8;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 62px;
  padding: 14px 18px;
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  list-style: none;
  box-shadow: 0 1px 0 var(--line);
}

.module-title::-webkit-details-marker {
  display: none;
}

.module-name {
  display: block;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.25;
  text-transform: uppercase;
}

.module-toggle {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--soft);
  color: var(--accent-dark);
  position: relative;
}

.module-toggle::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translate(-50%, -62%) rotate(45deg);
}

.order-module[open] .module-title {
  border-radius: 8px 8px 0 0;
}

.order-module[open] .module-toggle::before {
  transform: translate(-50%, -38%) rotate(225deg);
}

.module-content {
  padding: 22px 18px 24px;
}

.module-note {
  margin: 0 0 18px;
  color: var(--muted);
}

.module-content > .section-heading:first-child {
  margin-top: 0;
}

.selection-panel {
  position: sticky;
  top: 20px;
}

.section-heading {
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.section-heading:not(:first-child) {
  margin-top: 32px;
}

.section-heading p,
.note,
.empty-state {
  margin: 6px 0 0;
  color: var(--muted);
}

.admin-header-actions,
.admin-auth-form {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.admin-header-actions {
  align-items: center;
}

.admin-auth-panel {
  max-width: 680px;
}

.admin-auth-form .field {
  flex: 1 1 420px;
}

.admin-auth-form .button {
  flex: 0 0 auto;
}

.admin-auth-panel .error-message {
  min-height: 24px;
  margin: 12px 0 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.customer-details-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 1fr);
  gap: 24px;
  align-items: start;
}

.contact-fields {
  display: grid;
  gap: 16px;
}

.customer-details-grid .field {
  grid-template-rows: 20px 46px;
  gap: 5px;
}

.customer-details-grid .field > span:first-child {
  align-self: end;
  line-height: 1.2;
}

.customer-details-grid input {
  height: 46px;
  line-height: 1.4;
  min-height: 46px;
}

.field {
  display: grid;
  gap: 7px;
  color: var(--text);
  font-weight: 700;
}

.field span {
  font-size: 0.9rem;
}

.field-note {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.4;
}

.field-wide {
  grid-column: 1 / -1;
}

.personalization-grid,
.quantity-grid {
  margin-top: 18px;
}

.quantity-grid {
  display: grid;
  grid-template-columns: minmax(0, 640px);
  gap: 10px;
}

.parent-quantity-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 120px;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}

.parent-quantity-info {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.parent-quantity-name {
  font-weight: 800;
}

.parent-quantity-price {
  color: var(--muted);
  font-size: 0.9rem;
}

.country-picker {
  position: relative;
  display: block;
  font-size: 1rem;
  font-weight: 400;
  line-height: normal;
}

.country-picker input {
  box-sizing: border-box;
  font-size: 1rem;
  font-weight: 400;
  height: 46px;
  line-height: 1.4;
  min-height: 46px;
  padding: 10px 12px;
}

.country-options {
  position: absolute;
  z-index: 20;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  max-height: 188px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(38, 34, 30, 0.12);
  padding: 4px;
}

.country-option {
  width: 100%;
  min-height: 34px;
  border: 0;
  border-radius: 4px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  padding: 7px 9px;
  text-align: left;
}

.country-option:hover,
.country-option:focus {
  background: var(--surface);
  outline: none;
}

.country-option-separator {
  height: 1px;
  margin: 4px 6px;
  background: var(--line);
}

.address-block {
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.narrow {
  max-width: 260px;
}

.slider-field {
  max-width: 520px;
}

.slider-row {
  display: grid;
  grid-template-columns: 1fr 112px;
  gap: 16px;
  align-items: center;
}

.slider-row output {
  color: var(--accent-dark);
  font-weight: 800;
  text-align: right;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  color: var(--text);
  font: inherit;
  padding: 10px 12px;
}

input.field-error,
select.field-error,
textarea.field-error {
  border-color: var(--error);
  box-shadow: 0 0 0 1px var(--error);
}

.checkbox-field.field-error {
  color: var(--error);
}

.choice-group-error {
  border: 1px solid var(--error);
  border-radius: 8px;
  padding: 10px;
}

input[type="range"] {
  min-height: 44px;
  accent-color: var(--accent-dark);
  padding: 0;
}

.checkbox-field {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin-top: 18px;
  margin-bottom: 16px;
  color: var(--text);
  font-weight: 700;
}

#gilding-options:not([hidden]) {
  margin-top: 24px;
}

#spine-material-section:not([hidden]) {
  margin-top: 24px;
}

.checkbox-field input {
  width: 18px;
  min-height: 18px;
  accent-color: var(--accent-dark);
}

textarea {
  resize: vertical;
}

.link-result {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  margin-top: 18px;
}

.button {
  min-height: 44px;
  border: 1px solid var(--accent-dark);
  border-radius: 4px;
  background: var(--accent-dark);
  color: #fff;
  cursor: pointer;
  font-weight: 800;
  padding: 10px 18px;
  text-decoration: none;
  text-align: center;
}

.button.secondary {
  display: inline-flex;
  align-items: center;
  background: #fff;
  color: var(--accent-dark);
}

.table-button {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  color: var(--accent-dark);
  cursor: pointer;
  font-weight: 800;
  padding: 6px 12px;
}

.quiet-link {
  color: var(--muted);
  font-weight: 700;
  text-decoration: none;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card-grid.compact {
  grid-template-columns: repeat(3, minmax(120px, 1fr));
}

#design-type-options {
  margin-bottom: 22px;
}

.option-card {
  min-height: 148px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  display: grid;
  gap: 10px;
  padding: 18px;
  text-align: left;
}

.option-card[aria-pressed="true"] {
  border-color: var(--accent-dark);
  box-shadow: 0 0 0 2px var(--accent-dark) inset;
}

.option-card:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.empty-card {
  min-height: 148px;
  margin: 0;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  display: grid;
  place-items: center;
  padding: 18px;
  text-align: center;
}

.book-mark {
  width: 76px;
  height: 52px;
  border: 5px solid #8ba0a8;
  border-top: 0;
  justify-self: center;
  margin: 6px 0;
  transform: perspective(90px) rotateX(20deg);
}

.card-image-frame {
  position: relative;
  display: block;
  width: 100%;
  justify-self: center;
}

.card-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  justify-self: center;
  background: transparent;
  border: 0;
  border-radius: 0;
}

.image-zoom-control {
  position: absolute;
  right: 10px;
  top: 10px;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(79, 65, 54, 0.22);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 6px 18px rgba(51, 55, 74, 0.16);
  cursor: zoom-in;
  display: grid;
  place-items: center;
}

.image-zoom-control:hover {
  background: #fff;
  border-color: var(--accent-dark);
}

.image-zoom-icon {
  position: relative;
  width: 18px;
  height: 18px;
  border: 2px solid var(--accent-dark);
  border-radius: 50%;
}

.image-zoom-icon::before,
.image-zoom-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--accent-dark);
  transform: translate(-50%, -50%);
}

.image-zoom-icon::before {
  width: 9px;
  height: 2px;
}

.image-zoom-icon::after {
  width: 2px;
  height: 9px;
}

.image-zoom-control::after {
  content: "";
  position: absolute;
  right: 6px;
  bottom: 6px;
  width: 9px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-dark);
  transform: rotate(45deg);
  transform-origin: center;
}

.card-title {
  font-weight: 800;
  text-align: center;
}

.card-meta {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.selection-panel dl {
  display: grid;
  gap: 10px;
  margin: 0;
}

.selection-panel dt {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.selection-panel dd {
  margin: 0;
  font-weight: 800;
}

.price-box {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.price-box span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}

.price-box strong {
  display: block;
  margin-top: 4px;
  font-size: 1.6rem;
}

.review-panel {
  margin-top: 28px;
  padding: 18px;
  background: var(--soft);
  border-radius: 8px;
}

.review-panel ul {
  margin: 12px 0 0;
  padding-left: 18px;
}

.additional-payment-block {
  margin-top: 22px;
  padding: 16px;
  border: 1px solid rgba(204, 166, 116, 0.5);
  border-radius: 8px;
  background: #fff;
}

.additional-payment-total {
  margin: 0 0 12px;
  color: var(--text);
  font-weight: 900;
}

.additional-payment-block ul {
  margin: 0;
  padding-left: 18px;
}

.additional-payment-block li {
  margin: 8px 0;
}

.additional-payment-confirmation {
  display: flex;
  margin: 16px 0 0;
}

.review-summary {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 18px;
  margin: 12px 0;
}

.review-summary dt {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.review-summary dd {
  margin: 0;
  font-weight: 700;
}

.sidebar-preview {
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.sidebar-preview h2 {
  margin-bottom: 14px;
}

.preview-layout {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(220px, 320px);
  gap: 24px;
  align-items: center;
}

.preview-stage {
  min-height: 330px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(242, 238, 232, 0.72), rgba(255, 255, 255, 0.96)),
    repeating-linear-gradient(90deg, rgba(141, 121, 102, 0.08) 0 1px, transparent 1px 18px);
  padding: 28px;
}

.selection-panel .preview-stage {
  min-height: 0;
  padding: 0;
  background: transparent;
  border-radius: 0;
  place-items: center;
}

.preview-book {
  --preview-width: 250px;
  --preview-height: 250px;
  position: relative;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  width: var(--preview-width);
  height: var(--preview-height);
  filter: drop-shadow(0 22px 28px rgba(51, 55, 74, 0.2));
  transition: width 180ms ease, height 180ms ease;
}

.preview-square {
  --preview-width: 250px;
  --preview-height: 250px;
}

.preview-vertical {
  --preview-width: 220px;
  --preview-height: 310px;
}

.preview-horizontal {
  --preview-width: 320px;
  --preview-height: 220px;
}

.selection-panel .preview-square {
  --preview-width: min(220px, 100%);
  --preview-height: min(220px, 100vw);
}

.selection-panel .preview-vertical {
  --preview-width: min(178px, 86%);
  --preview-height: min(250px, 100vw);
}

.selection-panel .preview-horizontal {
  --preview-width: min(230px, 100%);
  --preview-height: min(160px, 72vw);
}

.selection-panel .preview-book {
  grid-template-columns: 18px minmax(0, 1fr);
  filter: drop-shadow(0 16px 20px rgba(51, 55, 74, 0.22));
}

.preview-spine {
  border-radius: 7px 0 0 7px;
  background: linear-gradient(90deg, #4f4136, #8d7966);
  background-position: center;
  background-size: cover;
  box-shadow:
    inset -10px 0 16px rgba(0, 0, 0, 0.24),
    inset 3px 0 7px rgba(255, 255, 255, 0.16);
  transform: translateZ(2px);
}

.preview-cover {
  position: relative;
  overflow: visible;
  border-radius: 0 7px 7px 0;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(0, 0, 0, 0.16)),
    var(--accent-dark);
  isolation: isolate;
  box-shadow:
    inset -10px 0 14px rgba(0, 0, 0, 0.12),
    inset 4px 0 8px rgba(255, 255, 255, 0.08);
  transform: translateZ(4px);
}

.preview-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.22), transparent 16%, transparent),
    linear-gradient(135deg, rgba(255, 255, 255, 0.16), transparent 42%, rgba(0, 0, 0, 0.08));
  border-radius: inherit;
}

.preview-cover::after {
  content: "";
  position: absolute;
  right: -9px;
  top: 4px;
  z-index: 1;
  width: 10px;
  height: calc(100% - 8px);
  border-radius: 0 6px 6px 0;
  background:
    repeating-linear-gradient(90deg, rgba(79, 65, 54, 0.22) 0 1px, transparent 1px 4px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.74), rgba(185, 177, 164, 0.45));
  box-shadow: 4px 0 9px rgba(51, 55, 74, 0.16);
}

.preview-cover-image,
.preview-design-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.preview-cover-image {
  object-fit: cover;
  z-index: 1;
  border-radius: inherit;
}

.preview-acryl .preview-cover-image {
  object-fit: cover;
}

.preview-design-frame {
  z-index: 3;
  overflow: hidden;
  left: 50%;
  top: 50%;
  width: 58%;
  height: 48%;
  transform: translate(-50%, -50%);
  mix-blend-mode: multiply;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, #000 0 82%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0 82%, transparent 100%);
}

.preview-horizontal .preview-design-frame {
  width: 42%;
  height: 72%;
  -webkit-mask-image: linear-gradient(to bottom, #000 0 70%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0 70%, transparent 88%);
}

.preview-vertical .preview-design-frame {
  width: 54%;
  height: 50%;
  -webkit-mask-image: linear-gradient(to bottom, #000 0 70%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0 70%, transparent 88%);
}

.preview-design-image {
  display: block;
  width: 100%;
  height: 116%;
  object-fit: contain;
  object-position: center center;
  z-index: 3;
  opacity: 0.92;
  clip-path: inset(0 0 16% 0);
}

.preview-horizontal .preview-design-image,
.preview-vertical .preview-design-image {
  clip-path: inset(0 0 26% 0);
}

.preview-placeholder {
  position: absolute;
  inset: 22px;
  z-index: 3;
  display: grid;
  place-items: center;
  border: 1px dashed rgba(255, 255, 255, 0.56);
  color: rgba(255, 255, 255, 0.88);
  font-weight: 800;
  text-align: center;
}

.preview-custom-design {
  position: absolute;
  left: 14%;
  right: 14%;
  top: 50%;
  z-index: 4;
  color: #1f2028;
  font-weight: 800;
  text-align: center;
  transform: translateY(-50%);
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.28);
}

.preview-gilding-edge {
  position: absolute;
  right: -9px;
  top: 4px;
  z-index: 5;
  width: 10px;
  height: calc(100% - 8px);
  border-radius: 0 6px 6px 0;
  box-shadow:
    inset 2px 0 4px rgba(255, 255, 255, 0.3),
    inset -3px 0 5px rgba(0, 0, 0, 0.24),
    4px 0 9px rgba(51, 55, 74, 0.2);
  transform: translateZ(10px);
}

.preview-details {
  display: grid;
  grid-template-columns: minmax(86px, max-content) 1fr;
  gap: 8px 14px;
  margin: 0;
}

.preview-details dt {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.preview-details dd {
  min-width: 0;
  margin: 0;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.detail-list {
  display: grid;
  grid-template-columns: minmax(160px, max-content) 1fr;
  gap: 10px 18px;
  margin: 0;
}

.detail-list dt {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.detail-list dd {
  margin: 0;
  font-weight: 700;
}

.admin-comment-field {
  margin-top: 22px;
}

.error-message {
  color: var(--error);
  font-weight: 700;
}

.actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 20px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 12px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.confirmation {
  margin-top: 24px;
}

.image-preview-dialog {
  width: min(920px, calc(100% - 32px));
  max-height: min(860px, calc(100vh - 32px));
  border: 0;
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  padding: 22px;
  box-shadow: 0 24px 80px rgba(51, 55, 74, 0.32);
}

.image-preview-dialog::backdrop {
  background: rgba(51, 55, 74, 0.58);
}

.image-preview-dialog figure {
  display: grid;
  gap: 14px;
  margin: 0;
}

.image-preview-dialog img {
  width: 100%;
  max-height: calc(100vh - 160px);
  object-fit: contain;
}

.image-preview-dialog figcaption {
  font-weight: 800;
  text-align: center;
}

.image-preview-close {
  position: absolute;
  right: 12px;
  top: 12px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  color: var(--accent-dark);
  cursor: pointer;
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
}

@media (max-width: 860px) {
  .configurator-shell {
    grid-template-columns: 1fr;
  }

  .selection-panel {
    position: static;
    order: 2;
  }

  .hero-row,
  .link-result {
    grid-template-columns: 1fr;
    display: grid;
  }

  .admin-header-actions,
  .admin-auth-form {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-auth-form .field {
    flex-basis: auto;
    width: 100%;
  }

  .admin-header-actions .button,
  .admin-auth-form .button {
    width: 100%;
  }

  .customer-details-grid,
  .form-grid,
  .quantity-grid,
  .card-grid,
  .card-grid.compact {
    grid-template-columns: 1fr;
  }

  .slider-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .slider-row output {
    text-align: left;
  }

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

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

  .preview-stage {
    min-height: 280px;
    padding: 20px;
  }

  .preview-square {
    --preview-width: min(250px, 82vw);
    --preview-height: min(250px, 82vw);
  }

  .preview-vertical {
    --preview-width: min(220px, 72vw);
    --preview-height: min(310px, 92vw);
  }

  .preview-horizontal {
    --preview-width: min(320px, 86vw);
    --preview-height: min(220px, 62vw);
  }

  .preview-details {
    grid-template-columns: 1fr;
  }

  .detail-list {
    grid-template-columns: 1fr;
  }

  .actions {
    justify-content: stretch;
  }

  .actions .button,
  .link-result .button {
    width: 100%;
  }
}