/* Tamizh Kani Kids — shared styles. Builds on ../assets/css/site.css tokens. */
:root {
  --k-red: #ef5350; --k-orange: #ffa726; --k-yellow: #ffd54f; --k-green: #66bb6a;
  --k-blue: #42a5f5; --k-purple: #ab47bc; --k-pink: #ec407a; --k-teal: #26a69a;
  --k-radius: 24px;
  --k-font: 'Baloo 2', 'Noto Sans Tamil', 'Noto Sans Devanagari', 'Poppins', system-ui, sans-serif;
}
.kids { font-family: var(--k-font); }
.kids h1, .kids h2, .kids h3 { font-family: var(--k-font); font-weight: 800; letter-spacing: 0; }
html[data-kids-lang="ta"] .kids, html[data-kids-lang="hi"] .kids { line-height: 1.6; }

/* Toolbar: language tabs, sound, stars */
.k-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: space-between; padding: 14px 0; }
.k-bar-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.k-langs { display: inline-flex; background: var(--surface-2); border-radius: 999px; padding: 4px; gap: 2px; }
.k-langs button { border: 0; background: transparent; padding: 8px 14px; border-radius: 999px; font: 700 .95rem var(--k-font); cursor: pointer; color: var(--muted); min-height: 46px; }
.k-langs button[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: 0 2px 6px rgba(0, 0, 0, .12); }
.k-icon-btn { border: 2px solid var(--border); background: var(--surface); border-radius: 999px; width: 50px; height: 50px; font-size: 1.25rem; cursor: pointer; display: inline-grid; place-items: center; }
.k-stars-badge { text-decoration: none; color: var(--text); background: var(--gold-soft); border-radius: 999px; padding: 8px 14px; font: 800 1rem var(--k-font); min-height: 50px; display: inline-flex; align-items: center; }
.k-back { text-decoration: none; color: var(--text); font: 700 1rem var(--k-font); display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px 8px 10px; border-radius: 999px; background: var(--surface-2); min-height: 44px; }

/* Big friendly buttons and tiles */
.k-btn { border: 0; border-radius: 999px; padding: 14px 26px; font: 800 1.15rem var(--k-font); cursor: pointer; background: var(--k-yellow); color: #3a2a00; box-shadow: 0 5px 0 rgba(0, 0, 0, .15); min-height: 56px; display: inline-flex; align-items: center; gap: 10px; text-decoration: none; transition: transform .08s; }
.k-btn:active { transform: translateY(3px); box-shadow: 0 2px 0 rgba(0, 0, 0, .15); }
.k-btn.alt { background: var(--surface); color: var(--text); border: 2px solid var(--border); box-shadow: 0 4px 0 var(--border); }
.k-tile { border: 3px solid transparent; background: var(--surface); border-radius: var(--k-radius); box-shadow: 0 6px 0 var(--border), var(--shadow); padding: 16px; cursor: pointer; text-align: center; font-family: var(--k-font); color: var(--text); text-decoration: none; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; transition: transform .1s, border-color .1s; }
.k-tile:hover { transform: translateY(-3px); }
.k-tile:active { transform: translateY(3px); box-shadow: 0 2px 0 var(--border); }
.k-tile:focus-visible, .k-btn:focus-visible, .k-langs button:focus-visible { outline: 4px solid var(--k-blue); outline-offset: 2px; }
.k-tile.right { border-color: var(--k-green); background: color-mix(in srgb, var(--k-green) 15%, var(--surface)); animation: k-pop .4s; }
.k-tile.wrong { border-color: var(--k-red); animation: k-shake .4s; }
.k-glyph { font-size: clamp(3rem, 12vw, 6rem); font-weight: 800; line-height: 1.1; }

/* Subject colours */
.k-c-tamil { --k-accent: var(--k-orange); }
.k-c-english { --k-accent: var(--k-blue); }
.k-c-hindi { --k-accent: var(--k-pink); }
.k-c-numbers { --k-accent: var(--k-green); }
.k-c-shapes { --k-accent: var(--k-purple); }
.k-c-colours { --k-accent: var(--k-teal); }
.k-c-world { --k-accent: #7cb342; }
.k-c-prewriting { --k-accent: #5c6bc0; }
.k-accent-bg { background: color-mix(in srgb, var(--k-accent, var(--k-yellow)) 18%, var(--surface)); }

/* Pictures */
.k-pic { display: inline-block; user-select: none; -webkit-user-drag: none; }
.k-pic:not(.is-animated) { animation: k-bob 2.4s ease-in-out infinite; }
.k-pic-text { line-height: 1; }

/* Start overlay */
.k-start { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(6px); }
.k-start-btn { border: 0; background: var(--k-yellow); color: #3a2a00; border-radius: 36px; padding: 28px 44px; font: 800 1.6rem var(--k-font); display: flex; flex-direction: column; align-items: center; gap: 8px; cursor: pointer; box-shadow: 0 8px 0 rgba(0, 0, 0, .18); animation: k-pulse 1.6s infinite; }
.k-start-icon { font-size: 3.2rem; line-height: 1; }

/* Celebration */
.k-confetti { position: fixed; inset: 0; pointer-events: none; z-index: 300; overflow: hidden; }
.k-confetti i { position: absolute; top: -20px; width: 10px; height: 16px; border-radius: 3px; animation: k-fall 2.2s ease-in forwards; }
.k-cheer { position: absolute; left: 50%; top: 40%; transform: translate(-50%, -50%); font: 800 clamp(2rem, 8vw, 4rem) var(--k-font); color: var(--k-orange); text-shadow: 0 4px 0 rgba(0, 0, 0, .12); animation: k-zoom .6s ease-out; white-space: nowrap; }
.k-starrow { font-size: 2.4rem; letter-spacing: 6px; }
.k-starrow .off { filter: grayscale(1); opacity: .3; }

/* Parent note */
.k-hint { font-family: var(--font); font-size: .82rem; color: var(--muted); background: var(--surface-2); border-radius: 12px; padding: 10px 14px; margin: 10px 0; }

@keyframes k-bob { 0%, 100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-8px) rotate(-3deg); } }
@keyframes k-pop { 0% { transform: scale(1); } 40% { transform: scale(1.12); } 100% { transform: scale(1); } }
@keyframes k-shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-8px); } 75% { transform: translateX(8px); } }
@keyframes k-pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }
@keyframes k-fall { to { transform: translateY(110vh) rotate(720deg); } }
@keyframes k-zoom { from { transform: translate(-50%, -50%) scale(.3); opacity: 0; } to { transform: translate(-50%, -50%) scale(1); opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .k-pic:not(.is-animated), .k-start-btn { animation: none; }
  .k-confetti i { display: none; }
}