:root {
  --paper: #f7f1e8;
  --paper-deep: #efe6d8;
  --ink: #2a2218;
  --ink-soft: #5c5040;
  --line: #d9cdb8;
  --coral: #d96b5a;
  --coral-deep: #c45544;
  --cream: #fffaf3;
  --shadow: 0 8px 28px rgba(42, 34, 24, 0.08);
  --radius: 14px;
  --font: "Segoe UI", "Helvetica Neue", system-ui, -apple-system, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(ellipse at top, #fffdf8 0%, var(--paper) 55%, var(--paper-deep) 100%);
  min-height: 100vh;
  line-height: 1.55;
}

a {
  color: var(--coral-deep);
}

.wrap {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  padding: 1.25rem 0 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: inherit;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(145deg, #f0a090, var(--coral));
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.35);
  display: grid;
  place-items: center;
}

.brand-mark svg {
  width: 22px;
  height: 22px;
}

.badge {
  font-size: 0.75rem;
  color: var(--ink-soft);
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
}

.hero {
  padding: 1.5rem 0 0.75rem;
}

.hero h1 {
  font-size: clamp(1.7rem, 4.2vw, 2.45rem);
  line-height: 1.15;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.hero .lede {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 42rem;
  margin: 0;
}

.panel {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
}

.layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  padding: 1rem 0 2rem;
}

@media (min-width: 860px) {
  .layout {
    grid-template-columns: 340px 1fr;
    align-items: start;
  }
}

.controls label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0.85rem 0 0.35rem;
}

.controls label:first-of-type {
  margin-top: 0;
}

.hint {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin: 0.25rem 0 0.5rem;
}

input[type="file"] {
  width: 100%;
  font-size: 0.9rem;
}

input[type="number"],
input[type="range"] {
  width: 100%;
}

.row-num {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.row-num input[type="number"] {
  width: 5.5rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font-size: 1rem;
}

.row-num input[type="range"] {
  flex: 1;
}

.btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.1rem;
}

button {
  font: inherit;
  cursor: pointer;
  border-radius: 10px;
  border: 1px solid transparent;
  padding: 0.6rem 1rem;
  font-weight: 600;
}

button.primary {
  background: var(--coral);
  color: #fff;
}

button.primary:hover {
  background: var(--coral-deep);
}

button.secondary {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.status {
  margin-top: 0.85rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.warn {
  margin-top: 0.65rem;
  padding: 0.65rem 0.75rem;
  background: #fff3e8;
  border: 1px solid #efc9a8;
  border-radius: 10px;
  color: #6b3d1f;
  font-size: 0.88rem;
}

.preview-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.preview-head h2 {
  margin: 0;
  font-size: 1.15rem;
}

.canvas-wrap {
  overflow: auto;
  max-height: min(70vh, 720px);
  background:
    repeating-conic-gradient(#f0e8da 0% 25%, #e8decc 0% 50%) 50% / 16px 16px;
  border-radius: 10px;
  border: 1px dashed var(--line);
  min-height: 220px;
  display: grid;
  place-items: center;
  padding: 0.75rem;
}

#chartCanvas {
  max-width: 100%;
  height: auto;
  image-rendering: pixelated;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.preview-empty {
  color: var(--ink-soft);
  text-align: center;
  padding: 1.5rem;
  max-width: 22rem;
  font-size: 0.95rem;
}

.how {
  padding: 0 0 2rem;
}

.how h2 {
  margin: 0 0 0.75rem;
  font-size: 1.2rem;
}

.how ol {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--ink-soft);
}

.how li {
  margin: 0.35rem 0;
}

.ba {
  padding: 0 0 2.5rem;
}

.ba h2 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

.ba p {
  margin: 0 0 0.85rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.ba img {
  width: 100%;
  max-width: 720px;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--cream);
}

.privacy {
  font-size: 0.92rem;
  color: var(--ink-soft);
  padding: 0 0 1.5rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.25rem 0 2rem;
  color: var(--ink-soft);
  font-size: 0.88rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  justify-content: space-between;
}

/* —— Cindy round: fabric / confetti / size / legend / PDF —— */
.field-select {
  width: 100%;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-weight: 600;
}

.size-box {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.size-box .label-sm {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 0.35rem;
}

.size-big {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.size-sub {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin-top: 0.2rem;
}

.muted {
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.legend {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
}

.legend-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.55rem;
  font-size: 0.95rem;
}

.legend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.4rem;
  max-height: 280px;
  overflow: auto;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  padding: 0.3rem 0.4rem;
  background: var(--paper);
  border-radius: 8px;
  border: 1px solid var(--line);
  min-width: 0;
}

.legend-item .sw {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  border-radius: 4px;
  border: 1px solid rgba(42, 34, 24, 0.2);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.72rem;
  font-family: Helvetica, Arial, sans-serif;
}

.legend-item b {
  flex-shrink: 0;
  font-size: 0.78rem;
}

.legend-item .nm {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ink-soft);
}

.legend-item small {
  flex-shrink: 0;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

button#pdfBtn:not(:disabled) {
  border-color: var(--coral);
  color: var(--coral-deep);
}