.color-picker-page { padding-top: 2rem; padding-bottom: 4rem; }
.color-picker-page > h1 { max-width: 850px; font-size: clamp(2.2rem, 4.5vw, 3.5rem); }
.color-picker-page > .seo-lead { max-width: 820px; }
.color-picker-card { margin-top: 2rem; }
.picker-dropzone { margin: 0; }
.picker-file-panel { flex-wrap: wrap; }
.picker-file-panel[hidden] { display: none; }
.picker-file-actions { display: flex; flex-wrap: wrap; align-items: center; gap: .65rem; }
.picker-workspace { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(290px, .75fr); gap: clamp(1.25rem, 3vw, 2rem); align-items: start; margin-top: 1.25rem; }
.picker-workspace[hidden] { display: none; }
.picker-image-panel, .picker-result-panel { min-width: 0; }
.picker-image-panel > .card-subtitle, .picker-result-panel > .card-subtitle { margin-bottom: .6rem; }
.picker-instructions { margin-bottom: .75rem; color: var(--ink-muted); font-size: .88rem; }
.picker-stage { display: grid; min-height: 300px; max-height: 620px; place-items: center; overflow: auto; padding: 1rem; border: 1px solid var(--border); border-radius: 10px; background: #f8fafc; }
.picker-image-frame { position: relative; display: inline-block; max-width: 100%; line-height: 0; }
.picker-image-frame canvas { display: block; max-width: 100%; max-height: min(68vh, 580px); height: auto; touch-action: manipulation; cursor: crosshair; }
.picker-image-frame canvas.picker-preview-upscaled { image-rendering: pixelated; }
.picker-image-frame canvas:focus-visible { outline: 3px solid var(--primary-dark); outline-offset: 3px; }
.picker-marker { position: absolute; z-index: 1; width: 18px; height: 18px; transform: translate(-50%, -50%); border: 2px solid #fff; border-radius: 50%; box-shadow: 0 0 0 2px #172033, 0 1px 4px rgba(0,0,0,.38); pointer-events: none; }
.picker-coordinates { min-height: 1.5em; margin: .65rem 0 0; }
.picker-color-empty { display: flex; min-height: 150px; align-items: center; gap: 1rem; padding: 1rem; border: 1px solid var(--border); border-radius: 10px; background: #fafbfe; color: var(--ink-muted); }
.picker-color-empty p { margin: 0; }
.picker-empty-swatch, .picker-color-swatch { display: block; width: 74px; height: 74px; flex: 0 0 74px; overflow: hidden; border: 1px solid var(--border-strong); border-radius: 12px; background-color: #fff; background-image: linear-gradient(45deg,#e8ebf1 25%,transparent 25%),linear-gradient(-45deg,#e8ebf1 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e8ebf1 75%),linear-gradient(-45deg,transparent 75%,#e8ebf1 75%); background-position: 0 0,0 6px,6px -6px,-6px 0; background-size: 12px 12px; }
.picker-color-swatch { position: relative; }
.picker-color-swatch > span { position: absolute; inset: 0; }
.picker-color-result[hidden] { display: none; }
.picker-color-summary { display: flex; align-items: center; gap: 1rem; padding: 1rem; border: 1px solid var(--border); border-radius: 10px; background: #fff; }
.picker-color-summary > div { display: grid; gap: .15rem; min-width: 0; }
.picker-color-summary strong { font-size: 1.4rem; letter-spacing: .01em; }
.picker-color-summary > div > span { color: var(--ink-muted); font-size: .84rem; }
.picker-values { margin: .8rem 0 0; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.picker-value-row { display: grid; grid-template-columns: 3.2rem minmax(0,1fr); gap: .6rem; align-items: center; padding: .65rem .75rem; border-bottom: 1px solid var(--border); }
.picker-value-row:last-child { border-bottom: 0; }
.picker-value-row dt { color: var(--ink-muted); font-size: .76rem; font-weight: 750; letter-spacing: .06em; }
.picker-value-row dd { display: flex; min-width: 0; align-items: center; justify-content: space-between; gap: .4rem; margin: 0; }
.picker-value-row code { overflow-wrap: anywhere; color: var(--ink); font: 600 .82rem/1.45 ui-monospace, SFMono-Regular, Consolas, monospace; user-select: text; }
.btn-copy { min-height: 36px; flex: 0 0 auto; padding: .3rem .6rem; border: 1px solid var(--border); border-radius: 7px; background: #fff; color: var(--primary-dark); font-size: .78rem; font-weight: 700; cursor: pointer; }
.btn-copy:hover { border-color: #b9b8f4; background: var(--primary-soft); }
.picker-alpha-help, .picker-format-note, .picker-privacy-note { margin: .65rem 0 0; color: var(--ink-muted); font-size: .82rem; line-height: 1.55; }
.picker-history { margin-top: 1.4rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.picker-history-heading { display: flex; align-items: center; justify-content: space-between; gap: .75rem; }
.picker-history-heading h4 { margin: 0; }
.picker-history-empty { margin: .5rem 0 0; color: var(--ink-muted); font-size: .83rem; }
.picker-history-list { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: .65rem; }
.picker-history-list:empty { display: none; }
.picker-history-swatch { width: 38px; height: 38px; padding: 0; border: 2px solid #fff; border-radius: 9px; background-color: #fff; background-image: linear-gradient(45deg,#e8ebf1 25%,transparent 25%),linear-gradient(-45deg,#e8ebf1 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e8ebf1 75%),linear-gradient(-45deg,transparent 75%,#e8ebf1 75%); background-position: 0 0,0 6px,6px -6px,-6px 0; background-size: 12px 12px; box-shadow: 0 0 0 1px var(--border-strong); cursor: pointer; }
.picker-history-swatch:hover { box-shadow: 0 0 0 2px var(--primary); }
.picker-history-swatch > span { display: block; width: 100%; height: 100%; border-radius: 6px; }
.picker-help, .picker-related { max-width: 920px; margin: 3rem auto 0; }
.picker-help h2, .picker-related h2 { font-size: 1.6rem; }
.picker-help .seo-steps { padding-left: 1.35rem; }
.picker-help .seo-steps li { margin-bottom: .75rem; padding-left: .35rem; }
.picker-related { margin-top: 2.5rem; }
.picker-related .seo-related { margin-top: .5rem; }
@media (max-width: 800px) {
  .picker-workspace { grid-template-columns: minmax(0,1fr); }
  .picker-stage { min-height: 250px; }
  .picker-result-panel { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: .8rem 1rem; align-items: start; }
  .picker-result-panel > .card-subtitle, .picker-history, .picker-alpha-help { grid-column: 1 / -1; }
  .picker-color-empty, .picker-color-result { grid-column: 1 / -1; }
  .picker-values { margin-top: 0; }
}
@media (max-width: 600px) {
  .color-picker-page { padding-top: 1.25rem; }
  .color-picker-card { padding: 1rem; }
  .picker-file-panel { align-items: flex-start; }
  .picker-file-actions { width: 100%; }
  .picker-file-actions .btn { flex: 1; }
  .picker-stage { min-height: 205px; max-height: 460px; padding: .65rem; }
  .picker-image-frame canvas { max-height: 420px; }
  .picker-result-panel { display: block; }
  .picker-result-panel > .card-subtitle { margin-bottom: .6rem; }
  .picker-values { margin-top: .8rem; }
  .picker-history { margin-top: 1.2rem; }
  .picker-color-summary strong { font-size: 1.2rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .color-picker-page *, .color-picker-page *::before, .color-picker-page *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}