:root {
  color-scheme: light;
  --bg: #eef2f7;
  --panel: #ffffff;
  --muted: #64748b;
  --line: #dbe3ee;
  /* slide color tokens — overridden by JS */
  --primary: #111827;
  --accent: #2563eb;
  --card-fill: #ffffff;
  --slide-bg: #f8fafc;
  --ink: #475569;
  --header: #111827;
  --footer: #0f172a;
  --header-text: #ffffff;
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

button,
input {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  padding: 28px;
}

.workspace {
  max-width: 1240px;
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 16px;
}

.primary-action {
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  padding: 11px 20px;
  cursor: pointer;
  font-weight: 600;
}

.primary-action:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.secondary-action {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 10px 16px;
  cursor: pointer;
}

.google-action {
  border: 0;
  border-radius: 8px;
  background: #fff;
  color: #444;
  padding: 10px 16px;
  cursor: pointer;
  font-weight: 600;
  box-shadow: 0 0 0 1px #dadce0;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: box-shadow 0.15s;
}

.google-action::before {
  content: "";
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 48 48'%3E%3Cpath fill='%23EA4335' d='M24 9.5c3.54 0 6.71 1.22 9.21 3.6l6.85-6.85C35.9 2.38 30.47 0 24 0 14.62 0 6.51 5.38 2.56 13.22l7.98 6.19C12.43 13.72 17.74 9.5 24 9.5z'/%3E%3Cpath fill='%234285F4' d='M46.98 24.55c0-1.57-.15-3.09-.38-4.55H24v9.02h12.94c-.58 2.96-2.26 5.48-4.78 7.18l7.73 6c4.51-4.18 7.09-10.36 7.09-17.65z'/%3E%3Cpath fill='%23FBBC05' d='M10.53 28.59c-.48-1.45-.76-2.99-.76-4.59s.27-3.14.76-4.59l-7.98-6.19C.92 16.46 0 20.12 0 24c0 3.88.92 7.54 2.56 10.78l7.97-6.19z'/%3E%3Cpath fill='%2334A853' d='M24 48c6.48 0 11.93-2.13 15.89-5.81l-7.73-6c-2.18 1.48-4.97 2.31-8.16 2.31-6.26 0-11.57-4.22-13.47-9.91l-7.98 6.19C6.51 42.62 14.62 48 24 48z'/%3E%3C/svg%3E") center/contain no-repeat;
}

.google-action:hover {
  box-shadow: 0 0 0 1px #aaa;
}

.google-action:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.google-action[data-state="auth"] {
  color: #1a73e8;
}

.google-action[data-state="connected"]::after {
  content: "●";
  color: #34a853;
  font-size: 10px;
  margin-left: 2px;
}

.topbar-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.grid {
  display: grid;
  grid-template-columns: minmax(340px, 420px) 1fr;
  gap: 18px;
  align-items: start;
}

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

.controls {
  padding: 18px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.panel-header span {
  color: var(--muted);
  font-size: 12px;
}

.upload-zone {
  display: grid;
  place-items: center;
  min-height: 150px;
  border: 1.5px dashed #b6c3d4;
  border-radius: 8px;
  background: #f8fafc;
  color: var(--muted);
  text-align: center;
  cursor: pointer;
  margin-bottom: 18px;
  padding: 18px;
}

.upload-zone.is-dragging {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, #ffffff);
}

.upload-zone input {
  display: none;
}

.upload-zone--logo {
  min-height: 80px;
  margin-bottom: 6px;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
}

.toggle-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.upload-zone strong {
  color: var(--ink);
  margin-top: 10px;
}

.upload-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 13px;
}

fieldset {
  border: 0;
  padding: 0;
  margin: 0 0 18px;
}

legend {
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
  padding: 4px;
  background: #edf2f7;
  border-radius: 8px;
}

.segmented.three {
  grid-template-columns: repeat(3, 1fr);
}

.segmented.four {
  grid-template-columns: repeat(4, 1fr);
}

.segmented input {
  display: none;
}

.segmented span {
  display: block;
  border-radius: 6px;
  padding: 9px;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
}

.segmented input:checked + span {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 1px 3px rgb(15 23 42 / 0.12);
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.palette-grid label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 12px;
}

input[type="color"] {
  width: 36px;
  height: 28px;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.palette-presets {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.palette-presets button {
  flex: 1;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 8px;
  cursor: pointer;
}

.range-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.range-row input {
  flex: 1;
}

.preview-panel {
  padding: 18px;
}

.slide-preview {
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--slide-bg);
}

.slide-preview.format-4-3 {
  aspect-ratio: 4 / 3;
}

.slide-preview.format-a4 {
  aspect-ratio: 1.414 / 1;
}

.slide-preview.portrait {
  max-width: 440px;
  margin-inline: auto;
  aspect-ratio: 9 / 16;
}

.slide-preview.format-a4.portrait {
  aspect-ratio: 1 / 1.414;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 11%;
  padding: 0 3.8%;
  background: var(--header);
  color: var(--header-text);
}

.preview-header span {
  font-weight: 700;
  font-size: clamp(12px, 1.5vw, 18px);
}

.preview-header small {
  opacity: 0.65;
  font-size: clamp(9px, 1vw, 12px);
}

#logoPreview {
  max-height: 68%;
  max-width: 28%;
  object-fit: contain;
  display: none;
}

.card-layout {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3%;
  height: 89%;
  padding: 3.2%;
}

.card-layout.dense-2 {
  grid-template-columns: repeat(2, 1fr);
  align-content: center;
}

/* Portrait mode: single column page layout, max 2 cards stacked vertically */
.slide-preview.portrait .card-layout {
  grid-template-columns: 1fr;
  align-content: start;
  gap: 4%;
  padding: 3.5% 8%;
}

.slide-preview.portrait .product-card {
  min-height: 0;
  gap: 6px;
}

/* Image position: center */
.slide-preview.portrait .card-layout.img-center .product-card {
  grid-template-columns: 1fr;
  justify-items: center;
}

.slide-preview.portrait .card-layout.img-center .product-thumb {
  width: min(100%, 120px);
  justify-self: center;
}

.slide-preview.portrait .card-layout.img-center .product-card > div:not(.product-thumb) {
  text-align: center;
  width: 100%;
}

.slide-preview.portrait .card-layout.img-center .product-card p {
  text-align: left;
}

/* Image position: left */
.slide-preview.portrait .card-layout.img-left .product-card {
  grid-template-columns: 80px 1fr;
}

.slide-preview.portrait .card-layout.img-left .product-thumb {
  width: 80px;
}

/* Image position: right */
.slide-preview.portrait .card-layout.img-right .product-card {
  grid-template-columns: 1fr 80px;
}

.slide-preview.portrait .card-layout.img-right .product-thumb {
  grid-column: 2;
  grid-row: 1;
  width: 80px;
}

.slide-preview.portrait .card-layout.img-right .product-card > div:not(.product-thumb) {
  grid-column: 1;
  grid-row: 1;
}

/* Image position: chess (alternating left / right) */
.slide-preview.portrait .card-layout.img-chess .product-card:nth-child(odd) {
  grid-template-columns: 80px 1fr;
}

.slide-preview.portrait .card-layout.img-chess .product-card:nth-child(odd) .product-thumb {
  width: 80px;
}

.slide-preview.portrait .card-layout.img-chess .product-card:nth-child(even) {
  grid-template-columns: 1fr 80px;
}

.slide-preview.portrait .card-layout.img-chess .product-card:nth-child(even) .product-thumb {
  grid-column: 2;
  grid-row: 1;
  width: 80px;
}

.slide-preview.portrait .card-layout.img-chess .product-card:nth-child(even) > div:not(.product-thumb) {
  grid-column: 1;
  grid-row: 1;
}

/* Staggered card arrangement (A4 portrait) */
.slide-preview.portrait .card-layout.layout-staggered .product-card {
  width: 88%;
}

.slide-preview.portrait .card-layout.layout-staggered .product-card:nth-child(odd) {
  justify-self: start;
}

.slide-preview.portrait .card-layout.layout-staggered .product-card:nth-child(even) {
  justify-self: end;
}

.card-layout.dense-3,
.card-layout.dense-5,
.card-layout.dense-6 {
  grid-template-columns: repeat(3, 1fr);
}

.product-card {
  min-width: 0;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: var(--card-fill);
  padding: 10px;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 10px;
  align-content: start;
}

.product-thumb {
  width: 70px;
  aspect-ratio: 4 / 3;
  border-radius: 6px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
}

.product-price {
  font-size: clamp(9px, 1vw, 12px);
  font-weight: 600;
  color: var(--accent);
  margin-top: 2px;
}

.product-card h3 {
  margin: 0;
  font-size: clamp(10px, 1.15vw, 14px);
  line-height: 1.18;
  color: var(--primary);
}

.product-card p {
  grid-column: 1 / -1;
  margin: 0;
  color: #475569;
  font-size: clamp(8px, 0.9vw, 11px);
  line-height: 1.28;
}

.product-card strong {
  display: block;
  margin: 3px 0;
  color: var(--accent);
  font-size: clamp(8px, 0.9vw, 11px);
}

.part {
  color: #64748b;
  font-size: clamp(8px, 0.8vw, 10px);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.metrics div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
}

.metrics strong,
.metrics span {
  display: block;
}

.metrics strong {
  font-size: 22px;
}

.metrics span {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 900px) {
  .app-shell {
    padding: 16px;
  }

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

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }
}