/* Stage U1: canonical public-shell design tokens and components. */
:root {
  --kp-color-ink:#123f3b;--kp-color-ink-strong:#082d2a;--kp-color-paper:#fffdf8;--kp-color-surface:#fff9ee;
  --kp-color-accent:#d85e32;--kp-color-highlight:#f3c94e;--kp-color-link:#075f65;--kp-color-muted:#625f56;
  --kp-color-line:#d8cfbf;--kp-color-success:#237a51;--kp-color-warning:#8a4b0f;--kp-color-focus:#1669d8;
  --kp-space-1:.25rem;--kp-space-2:.5rem;--kp-space-3:.75rem;--kp-space-4:1rem;--kp-space-5:1.5rem;
  --kp-space-6:2rem;--kp-space-7:3rem;--kp-space-8:4.5rem;--kp-radius-sm:.25rem;--kp-radius-md:.625rem;
  --kp-radius-lg:1rem;--kp-border:1px solid var(--kp-color-line);--kp-shadow-sm:0 4px 14px rgba(24,50,44,.09);
  --kp-shadow-lg:0 20px 54px rgba(24,50,44,.14);--kp-font-sans:"Noto Sans Tamil","Nirmala UI",system-ui,-apple-system,"Segoe UI",sans-serif;
  --kp-font-serif:Georgia,"Noto Serif Tamil",serif;--kp-text-sm:.8125rem;--kp-text-base:1rem;--kp-text-lg:1.25rem;
  --kp-width-hub:75rem;--kp-width-article:48rem;--kp-width-tool:64rem;--kp-width-listing:80rem;--kp-header-height:4.5rem;
  /* Breakpoints: compact 40rem, navigation 64rem, wide 80rem. */
}
html{scroll-padding-top:calc(var(--kp-header-height) + var(--kp-space-4))}body{font-family:var(--kp-font-sans);color:var(--kp-color-ink);background:var(--kp-color-paper);overflow-x:clip}main{min-width:0}.kp-main-anchor{display:block;position:relative;top:calc(-1 * var(--kp-space-4));visibility:hidden}
.kp-container{width:min(calc(100% - 2rem),var(--kp-width-hub));margin-inline:auto}.kp-skip{position:fixed;z-index:1000;top:.5rem;left:.5rem;padding:.75rem 1rem;background:#fff;color:var(--kp-color-ink-strong);border:3px solid var(--kp-color-focus);border-radius:var(--kp-radius-sm);transform:translateY(-150%)}.kp-skip:focus{transform:none}
.kp-context{min-height:2rem;background:var(--kp-color-ink-strong);color:#fff;font-size:var(--kp-text-sm)}.kp-context>.kp-container{min-height:2rem;display:flex;align-items:center;justify-content:space-between;gap:var(--kp-space-4)}.kp-context nav{display:flex;gap:var(--kp-space-4)}.kp-context a{color:#fff;text-decoration-thickness:.08em;text-underline-offset:.18em}
.kp-header-search{display:flex;align-items:center}.kp-header-search input{width:7rem;min-height:1.6rem;padding:.2rem .4rem;border:1px solid #7f9994;border-radius:.25rem 0 0 .25rem;font-size:.75rem}.kp-header-search button{min-height:1.6rem;border:0;padding:.15rem .45rem;background:var(--kp-color-highlight);color:var(--kp-color-ink);border-radius:0 .25rem .25rem 0;font-weight:900}
.kp-header{position:relative;z-index:20;min-height:var(--kp-header-height);background:#fff;border-bottom:var(--kp-border)}.kp-header__inner{box-sizing:border-box;width:min(calc(100% - 2rem),var(--kp-width-listing));min-height:var(--kp-header-height);margin-inline:auto;display:flex;align-items:center;justify-content:space-between;gap:var(--kp-space-5)}
.kp-brand{display:inline-flex;align-items:center;gap:.65rem;color:var(--kp-color-ink);text-decoration:none;min-width:max-content}.kp-brand__mark{display:grid;place-items:center;width:2.5rem;height:2.75rem;background:var(--kp-color-accent);color:#fff;border-radius:50% 50% 50% .4rem;font-weight:900}.kp-brand strong,.kp-brand small{display:block}.kp-brand strong{font-size:1rem;line-height:1.15}.kp-brand small{margin-top:.15rem;font-size:.62rem;letter-spacing:.06em;color:var(--kp-color-muted)}
.kp-desktop-nav ul,.kp-mobile-nav ul{list-style:none;margin:0;padding:0}.kp-desktop-nav ul{display:flex;align-items:stretch;gap:.15rem}.kp-desktop-nav a{display:flex;align-items:center;min-height:2.75rem;padding:.45rem .65rem;border-radius:var(--kp-radius-sm);color:var(--kp-color-ink);font-size:.86rem;font-weight:700;text-decoration:none}.kp-desktop-nav a:hover{background:var(--kp-color-surface)}.kp-desktop-nav a[aria-current=page]{color:var(--kp-color-accent);background:#fff3e8;box-shadow:inset 0 -3px var(--kp-color-accent)}
.kp-mobile-nav{display:none;position:relative}.kp-mobile-nav summary{cursor:pointer;min-height:2.75rem;padding:.65rem .8rem;border:var(--kp-border);border-radius:var(--kp-radius-sm);font-weight:800;list-style:none}.kp-mobile-nav summary::-webkit-details-marker{display:none}.kp-mobile-nav summary::after{content:" +"}.kp-mobile-nav[open] summary::after{content:" −"}.kp-mobile-nav>nav{position:absolute;right:0;top:calc(100% + .5rem);width:min(22rem,calc(100vw - 2rem));padding:var(--kp-space-3);background:#fff;border:var(--kp-border);border-radius:var(--kp-radius-md);box-shadow:var(--kp-shadow-lg)}.kp-mobile-nav a{display:block;padding:.8rem;border-radius:var(--kp-radius-sm);color:var(--kp-color-ink);font-weight:700;text-decoration:none}.kp-mobile-nav a[aria-current=page]{background:#fff3e8;color:var(--kp-color-accent)}.kp-mobile-tools{border-top:var(--kp-border);margin-top:.4rem;padding-top:.4rem}
.kp-breadcrumbs{padding-block:var(--kp-space-4);font-size:var(--kp-text-sm)}.kp-breadcrumbs ol{display:flex;align-items:center;gap:.5rem;list-style:none;margin:0;padding:0}.kp-breadcrumbs li+li::before{content:"/";margin-right:.5rem;color:var(--kp-color-muted)}.kp-breadcrumbs li[aria-current=page]{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--kp-color-muted)}
.kp-answer,.kp-warning,.kp-sources,.kp-related{margin-block:var(--kp-space-5);padding:var(--kp-space-5);border-radius:var(--kp-radius-md)}.kp-answer{background:#eef8f4;border-left:4px solid var(--kp-color-success)}.kp-warning{background:#fff5db;border-left:4px solid var(--kp-color-warning)}.kp-evidence{display:flex;align-items:center;gap:.5rem;color:var(--kp-color-muted);font-size:var(--kp-text-sm)}.kp-evidence>span{width:.6rem;height:.6rem;border-radius:50%;background:var(--kp-color-success)}.kp-sources,.kp-related{border:var(--kp-border);background:#fff}.kp-official::after{content:"↗";margin-left:.3em}.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}
.kp-footer{margin-top:var(--kp-space-8);background:var(--kp-color-ink-strong);color:#fff}.kp-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:var(--kp-space-7);padding-block:var(--kp-space-7)}.kp-brand--footer{color:#fff}.kp-footer p{max-width:34rem;color:#d6e4e1;line-height:1.7}.kp-footer h2{font:800 var(--kp-text-sm)/1.3 var(--kp-font-sans);color:#ffe49a;text-transform:uppercase;letter-spacing:.04em}.kp-footer ul{list-style:none;padding:0;margin:0}.kp-footer li+li{margin-top:.55rem}.kp-footer a{color:#fff}.kp-footer__base{display:flex;justify-content:space-between;gap:var(--kp-space-4);padding-block:var(--kp-space-4);border-top:1px solid #355b56;color:#c8d7d4;font-size:var(--kp-text-sm)}
.hub,.hub-layout{max-width:var(--kp-width-hub)}article,.article-body,.article-layout{max-width:var(--kp-width-article)}.tool-layout,.checklist-tool,.calculator-shell{max-width:var(--kp-width-tool)}.listing-layout,.catalogue-shell{max-width:var(--kp-width-listing)}
:where(a,button,input,select,textarea,summary):focus-visible{outline:3px solid var(--kp-color-focus)!important;outline-offset:3px!important}img{max-width:100%;height:auto}img:not([width]):not([height]){aspect-ratio:16/9;object-fit:cover;background:var(--kp-color-surface)}
@media(max-width:64rem){.kp-header__inner{position:relative;display:block;padding-right:5.5rem}.kp-brand{min-width:0}.kp-desktop-nav{display:none}.kp-mobile-nav{display:block!important;visibility:visible;position:absolute;right:0;top:50%;transform:translateY(-50%);color:var(--kp-color-ink)}.kp-mobile-nav summary{display:block;background:#fff}.kp-context nav a:first-child,.kp-context nav a:last-child{display:none}.kp-footer__grid{grid-template-columns:1fr 1fr}.kp-footer__grid>div:first-child{grid-column:1/-1}}
@media(max-width:40rem){.kp-container,.kp-header__inner{width:min(calc(100% - 1.25rem),var(--kp-width-hub))}.kp-context>.kp-container{justify-content:flex-end}.kp-context>.kp-container>span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.kp-header-search{display:none}.kp-brand strong{font-size:.9rem}.kp-brand small{max-width:10.5rem;font-size:.55rem}.kp-footer__grid{grid-template-columns:1fr}.kp-footer__grid>div:first-child{grid-column:auto}.kp-footer__base{flex-direction:column}.kp-breadcrumbs li[aria-current=page]{max-width:70vw}:where(h1,h2,h3,p,li){overflow-wrap:anywhere}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto!important}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
@media print{.kp-context,.kp-header,.kp-footer,.kp-skip{display:none}.kp-breadcrumbs{padding-inline:0}}