/* Signal v0.4: framework-neutral components. Load fonts.css, tokens.css, then this file. */
.ku,.ku *,.ku *::before,.ku *::after{box-sizing:border-box}
.ku{margin:0;background:var(--ku-bg);color:var(--ku-text);font:400 var(--ku-text-base)/1.5 var(--ku-font-body);-webkit-font-smoothing:antialiased}
.ku [hidden]{display:none!important}.ku button,.ku input,.ku select,.ku textarea{font:inherit}.ku button{cursor:pointer}.ku a{color:var(--ku-accent-ink);text-underline-offset:.2em}
.ku :is(button,a,input,select,textarea,summary,[tabindex]):focus-visible{outline:3px solid var(--ku-focus);outline-offset:3px}
.ku :is(button,input,select,textarea):disabled{opacity:.45;cursor:not-allowed}.ku [aria-busy=true]{cursor:progress}
.ku h1,.ku h2,.ku h3,.ku p{margin:0}.ku p+p{margin-top:16px}.ku img,.ku svg{max-width:100%}.ku img{display:block}
.ku-display{font:800 var(--ku-display)/1.02 var(--ku-font-display);letter-spacing:-.04em;text-transform:uppercase;overflow-wrap:anywhere}
.ku-title{font:700 var(--ku-title-md)/1.2 var(--ku-font-body);letter-spacing:-.03em}.ku-heading{font:700 var(--ku-title-sm)/1.25 var(--ku-font-body)}
.ku-brand-heading{font:800 var(--ku-title-md)/1.1 var(--ku-font-display);letter-spacing:-.03em;text-transform:uppercase}
.ku-label{font-size:var(--ku-text-sm);font-weight:700}.ku-eyebrow{font-size:var(--ku-text-xs);letter-spacing:.1em;text-transform:uppercase;color:var(--ku-muted)}
.ku-caption{font-size:var(--ku-text-xs);color:var(--ku-muted)}.ku-muted{color:var(--ku-muted)}.ku-accent-text{color:var(--ku-accent-ink)}
.ku-highlight{background:var(--ku-pink);color:var(--ku-black);padding:0 .08em;box-decoration-break:clone}.ku-number{font-variant-numeric:tabular-nums;letter-spacing:-.025em}
.ku-container{max-width:1280px;margin-inline:auto;padding:32px}.ku-stack{display:grid;gap:24px;min-width:0}.ku-stack>*{min-width:0}.ku-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.ku-between{justify-content:space-between}
.ku-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:24px}.ku-split{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:32px}.ku-rule{border:0;border-top:1px solid var(--ku-line);margin:24px 0}
.ku-card{background:var(--ku-surface);border-radius:var(--ku-radius-panel);padding:24px;min-width:0}.ku-panel{background:var(--ku-raised);border:1px solid var(--ku-line);border-radius:var(--ku-radius-panel);padding:24px;min-width:0}
.ku-inset{background:var(--ku-surface);border-radius:8px;padding:16px}.ku-stat{border-top:1px solid var(--ku-line);padding-top:16px}.ku-stat strong{display:block;font:400 32px/1.4 var(--ku-font-body);font-variant-numeric:tabular-nums}.ku-stat span{font-size:12px;color:var(--ku-muted)}
.ku-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:var(--ku-control-height);padding:8px 16px;border:1px solid var(--ku-control-border);border-radius:var(--ku-radius-control);background:var(--ku-raised);color:var(--ku-text)!important;font:700 14px/1.25 var(--ku-font-body);text-decoration:none;white-space:nowrap;transition:background var(--ku-motion-duration) var(--ku-motion-ease)}
.ku-btn:hover:not(:disabled){background:var(--ku-surface)}.ku-btn:active:not(:disabled){background:var(--ku-track)}
.ku-btn--primary{background:var(--ku-accent);color:var(--ku-on-accent)!important;border-color:var(--ku-text)}.ku-btn--primary:hover:not(:disabled){background:var(--ku-accent-hover)}.ku-btn--primary:active:not(:disabled){background:var(--ku-accent-pressed)}
.ku-btn--quiet{background:transparent;border-color:transparent}.ku-btn--danger{background:var(--ku-error-surface);color:var(--ku-error)!important;border-color:var(--ku-error)}
.ku-btn--pill{border-radius:999px}.ku-btn--small{min-height:32px;font-size:12px;padding:6px 12px}.ku-icon{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle}
.ku-icon-btn{width:40px;min-width:40px;height:40px;padding:8px}.ku-icon-btn--brand{border-radius:50%;background:var(--ku-pink);color:#000!important;border-color:var(--ku-text)}
.ku-field{display:grid;gap:8px}.ku-field label,.ku-field legend{font-size:14px;font-weight:700}.ku-input,.ku-select,.ku-textarea{width:100%;min-height:40px;padding:9px 12px;color:var(--ku-text);background:var(--ku-raised);border:1px solid var(--ku-control-border);border-radius:8px;font:400 16px/1.4 var(--ku-font-body)}.ku-textarea{min-height:112px;resize:vertical}.ku-input::placeholder,.ku-textarea::placeholder{color:var(--ku-muted);opacity:1}.ku-input:hover,.ku-select:hover,.ku-textarea:hover{border-color:var(--ku-text)}
.ku-input[aria-invalid=true],.ku-select[aria-invalid=true],.ku-textarea[aria-invalid=true]{border-color:var(--ku-error);border-width:2px}.ku-error-text{font-size:14px;color:var(--ku-error)}
.ku-check{display:flex;align-items:center;gap:10px;min-height:40px;font-size:14px}.ku-check input{width:18px;height:18px;accent-color:var(--ku-accent-ink);flex:none}.ku-switch{appearance:none;width:42px!important;height:24px!important;border-radius:999px;border:1px solid var(--ku-control-border);background:var(--ku-track);position:relative}.ku-switch::after{content:'';position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:50%;background:var(--ku-text);transition:transform var(--ku-motion-duration) var(--ku-motion-ease)}.ku-switch:checked{background:var(--ku-accent)}.ku-switch:checked::after{transform:translateX(18px);background:#000}
.ku-chip{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border:1px solid var(--ku-control-border);border-radius:999px;font-size:12px;line-height:1.6;background:var(--ku-raised);color:var(--ku-text)}.ku-chip--selected{background:var(--ku-selection);border-color:var(--ku-selection-marker)}.ku-chip--success{color:var(--ku-success);background:var(--ku-success-surface);border-color:var(--ku-success)}.ku-chip--warning{color:var(--ku-warning);background:var(--ku-warning-surface);border-color:var(--ku-warning)}.ku-chip--error{color:var(--ku-error);background:var(--ku-error-surface);border-color:var(--ku-error)}
.ku-tabs{display:flex;gap:4px;flex-wrap:wrap;border-bottom:1px solid var(--ku-line)}.ku-tab{background:transparent;border:0;border-bottom:3px solid transparent;color:var(--ku-muted);padding:12px 16px;min-height:44px;font:700 14px var(--ku-font-body)}.ku-tab[aria-selected=true]{border-bottom-color:var(--ku-selection-marker);color:var(--ku-text)}.ku-tab:hover{background:var(--ku-surface)}.ku-tabpanel{padding-top:24px}
.ku-table-wrap{overflow-x:auto}.ku-table{width:100%;border-collapse:collapse;font-size:14px}.ku-table :is(th,td){height:44px;padding:10px 12px;text-align:left;border-bottom:1px solid var(--ku-line);white-space:nowrap}.ku-table th{font-size:12px;color:var(--ku-muted);font-weight:700}.ku-table .ku-numeric{text-align:right;font-variant-numeric:tabular-nums}.ku-table tbody tr:hover{background:var(--ku-surface)}.ku-table tr[aria-selected=true]{background:var(--ku-selection)}.ku-table tr[aria-selected=true] td:first-child{box-shadow:inset 3px 0 var(--ku-selection-marker)}.ku-sort{background:none;color:inherit;border:0;padding:6px 0;font:inherit;min-height:32px}
.ku-alert{display:flex;gap:12px;border:1px solid var(--ku-control-border);border-left:4px solid var(--ku-text);border-radius:8px;padding:16px;background:var(--ku-info-surface);font-size:14px}.ku-alert--error{background:var(--ku-error-surface);color:var(--ku-error);border-color:var(--ku-error)}.ku-alert--success{background:var(--ku-success-surface);color:var(--ku-success);border-color:var(--ku-success)}.ku-alert--warning{background:var(--ku-warning-surface);color:var(--ku-warning);border-color:var(--ku-warning)}
.ku-progress{width:100%;height:10px;appearance:none;border:0;border-radius:999px;overflow:hidden;background:var(--ku-track);color:var(--ku-data-primary)}.ku-progress::-webkit-progress-bar{background:var(--ku-track)}.ku-progress::-webkit-progress-value{background:var(--ku-data-primary);border-radius:999px}.ku-progress::-moz-progress-bar{background:var(--ku-data-primary);border-radius:999px}
.ku-dialog{max-width:min(520px,calc(100vw - 32px));width:100%;border:1px solid var(--ku-control-border);border-radius:12px;padding:28px;background:var(--ku-raised);color:var(--ku-text);font:400 16px/1.5 var(--ku-font-body)}.ku-dialog::backdrop{background:rgb(0 0 0/.65)}.ku-dialog h2{font-size:24px;margin-bottom:12px}.ku-dialog .ku-row{margin-top:24px}
.ku-details{border-bottom:1px solid var(--ku-line);padding:16px 0}.ku-details summary{cursor:pointer;font-weight:700;min-height:40px;padding:8px 0}.ku-details p{padding:8px 0 12px;color:var(--ku-muted)}
.ku-empty{text-align:center;padding:48px 24px}.ku-empty p{max-width:44ch;margin:12px auto 24px;color:var(--ku-muted)}.ku-skeleton{height:16px;background:var(--ku-track);border-radius:4px}.ku-skeleton+.ku-skeleton{margin-top:12px}.ku-spinner{animation:ku-spin .8s linear infinite}.ku-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@keyframes ku-spin{to{transform:rotate(360deg)}}
.ku-brand-hero{position:relative;overflow:hidden;min-height:560px;background:var(--ku-surface);padding:48px;display:grid;align-content:center;gap:28px}.ku-brand-hero> :not(.ku-brand-art){position:relative;z-index:1;max-width:720px}.ku-brand-hero p{max-width:48ch;color:var(--ku-muted)}.ku-brand-art{position:absolute;right:-150px;bottom:-180px;width:700px;pointer-events:none}.ku-brand-art img{width:100%}.ku-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.ku-flow-node{border:1px solid var(--ku-control-border);border-radius:12px;padding:24px;background:var(--ku-surface);position:relative}.ku-flow-node:not(:last-child)::after{content:'→';position:absolute;right:-26px;top:45%;color:var(--ku-accent-ink)}
@media(max-width:760px){.ku-container{padding:24px}.ku-split{grid-template-columns:1fr}.ku-title{font-size:28px}.ku-brand-hero{padding:28px;min-height:540px}.ku-brand-art{width:430px;right:-220px;bottom:-160px;opacity:.5}.ku-display{font-size:clamp(30px,7.7vw,58px)}.ku-flow{grid-template-columns:1fr}.ku-flow-node:not(:last-child)::after{content:'↓';right:50%;top:auto;bottom:-29px}}
@media(pointer:coarse){.ku-btn,.ku-icon-btn,.ku-input,.ku-select,.ku-sort{min-height:44px}.ku-icon-btn{width:44px;min-width:44px;height:44px}.ku-check{min-height:44px}.ku-btn--small{min-height:44px}}
@media(prefers-reduced-motion:reduce){.ku *{scroll-behavior:auto!important}.ku-spinner{animation:none}}