/*! CSS Portal — CSS Color Converter */
.cc { display: grid; gap: 16px; }
.cc [hidden] { display: none !important; }
.cc .gt-card__head h2 { margin: 0; }
.cc-body { padding: 16px; }
.cc-top { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 16px; }
@media (max-width: 860px) { .cc-top { grid-template-columns: minmax(0, 1fr); } }

/* input card */
.cc-input { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: 16px; align-items: start; }
.cc-swatch { width: 112px; height: 112px; border-radius: 14px; background: linear-gradient(var(--c), var(--c)), repeating-conic-gradient(#cbd5e1 0 25%, #fff 0 50%) 0 0 / 14px 14px; box-shadow: inset 0 0 0 1px rgba(15, 23, 42, .12); }
.cc-fields { display: grid; gap: 12px; min-width: 0; }
.cc-field { display: grid; gap: 6px; margin: 0; font-size: 13px; font-weight: 600; color: var(--ct-text); }
.cc-field input[type="text"] { box-sizing: border-box; width: 100%; height: 40px; padding: 0 12px; font: 500 15px/1 var(--ct-mono); color: var(--ct-text); background: var(--ct-bg); border: 1px solid var(--ct-border); border-radius: 8px; outline: none; }
.cc-field input[type="text"]:focus { border-color: var(--ct-accent); box-shadow: 0 0 0 3px var(--ct-accent-soft); }
.cc-field input[aria-invalid="true"] { border-color: var(--ct-err); }
.cc-row { display: flex; align-items: center; gap: 12px; }
.cc-row input[type="color"] { flex: none; width: 48px; height: 36px; padding: 2px; background: var(--ct-bg); border: 1px solid var(--ct-border); border-radius: 8px; cursor: pointer; }
.cc-row input[type="range"] { flex: 1; min-width: 0; }
.cc-row output { width: 44px; text-align: right; font-variant-numeric: tabular-nums; color: var(--ct-muted); }
.cc-msg { margin: 0; font-size: 12.5px; font-weight: 500; color: var(--ct-warn); }
.cc-msg:empty { display: none; }
.cc-link { display: flex; align-items: center; gap: 8px; margin: 14px 0 0; font-size: 12.5px; color: var(--ct-muted); flex-wrap: wrap; }
.cc-link code { padding: 3px 6px; font-size: 12px; color: var(--ct-text); background: var(--ct-surface-2); border-radius: 6px; overflow-wrap: anywhere; }

/* preview card */
.cc-preview { display: grid; gap: 10px; padding: 16px; background: #fff; transition: background-color .2s; }
.cc-preview[data-bg="dark"] { background: #0f172a; }
.cc-preview > div { display: grid; place-items: center; min-height: 52px; border-radius: 10px; font: 600 15px/1.3 system-ui, sans-serif; }
.cc-pv-text { box-shadow: inset 0 0 0 1px rgba(148, 163, 184, .35); }
.cc-pv-bg { background: linear-gradient(var(--c), var(--c)), repeating-conic-gradient(#cbd5e1 0 25%, #fff 0 50%) 0 0 / 12px 12px; color: #fff; text-shadow: 0 1px 2px rgba(0, 0, 0, .45); }
.cc-pv-border { border: 4px solid var(--c); color: #64748b; }
.cc-preview[data-bg="dark"] .cc-pv-border { color: #94a3b8; }

/* formats */
.cc-formats { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 8px; padding: 16px; }
.cc-format { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 8px; align-items: center; padding: 10px 12px; background: var(--ct-surface); border: 1px solid var(--ct-border); border-radius: 10px; }
.cc-format__label { font-size: 11.5px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--ct-muted); }
.cc-format__label small { font-weight: 500; letter-spacing: 0; text-transform: none; }
.cc-format__value { grid-column: 1; font: 500 13.5px/1.4 var(--ct-mono); color: var(--ct-text); overflow-wrap: anywhere; background: none; padding: 0; }
.cc-copy { grid-column: 2; grid-row: 1 / span 2; }
.cc .ct-tool.is-done { color: var(--ct-ok); }

/* contrast */
.cc-contrasts { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; padding: 16px; }
.cc-contrast h3 { margin: 0 0 6px; font-size: 14px; color: var(--ct-text); }
.cc-ratio { margin: 0 0 8px; color: var(--ct-muted); font-size: 13px; }
.cc-ratio strong { font-size: 24px; color: var(--ct-text); margin-right: 6px; font-variant-numeric: tabular-nums; }
.cc-tests { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; margin: 0 0 10px; padding: 0; list-style: none; }
.cc-tests li { display: flex; justify-content: space-between; margin: 0; padding: 6px 8px; font-size: 12.5px; border-radius: 6px; }
.cc-tests .is-pass { color: #166534; background: #dcfce7; }
.cc-tests .is-fail { color: #991b1b; background: #fee2e2; }
.cc-sample { border-radius: 8px; overflow: hidden; box-shadow: inset 0 0 0 1px rgba(148, 163, 184, .4); }
.cc-sample p { margin: 0; padding: 10px 12px; }
.cc-sample__small { font-size: 14px; }
.cc-sample__large { font-size: 20px; font-weight: 700; border-top: 1px solid rgba(148, 163, 184, .3); }
.cc-bg-pick { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ct-muted); }
.cc-bg-pick input { width: 130px; height: 32px; padding: 0 8px; font: 500 13px var(--ct-mono); color: var(--ct-text); background: var(--ct-bg); border: 1px solid var(--ct-border); border-radius: 8px; }
.cc-explain { margin: 0; padding: 0 16px 16px; font-size: 13px; color: var(--ct-muted); line-height: 1.6; }

/* chips */
.cc-intro { margin: 0; padding: 12px 16px 0; font-size: 13px; color: var(--ct-muted); }
.cc-chips { display: grid; grid-template-columns: repeat(auto-fill, minmax(72px, 1fr)); gap: 10px; margin: 0; padding: 16px; list-style: none; }
.cc-chips li { display: grid; gap: 5px; margin: 0; text-align: center; font: 500 11px/1.3 var(--ct-mono); color: var(--ct-muted); }
.cc-chip { display: block; width: 100%; aspect-ratio: 1.4; margin: 0; padding: 0; background: var(--c); border: 0; border-radius: 8px; box-shadow: inset 0 0 0 1px rgba(15, 23, 42, .1); cursor: pointer; transition: transform .12s; }
.cc-chip:hover { transform: translateY(-2px); }
.cc-chip:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ct-accent-soft), 0 0 0 5px var(--ct-accent); }
.cc-chip.is-current { box-shadow: 0 0 0 2px var(--ct-bg), 0 0 0 4px var(--ct-text); }
.cc-schemes { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; padding: 16px; }
.cc-scheme { padding: 12px; background: var(--ct-surface); border: 1px solid var(--ct-border); border-radius: 10px; }
.cc-scheme h3 { margin: 0 0 2px; font-size: 14px; color: var(--ct-text); }
.cc-scheme p { margin: 0; font-size: 12.5px; color: var(--ct-muted); }
.cc-scheme .cc-chips { padding: 10px 0 0; grid-template-columns: repeat(auto-fill, minmax(56px, 1fr)); }
@media (prefers-reduced-motion: reduce) { .cc-chip, .cc-preview { transition: none; } }