/* Baccare — shared kid-facing styles */
:root{
  --sky:#FFF7F2; --sky-deep:#FFE3D3; --ink:#070713; --text:#4A4A50; --muted:#7A7A85;
  --sun:#FFE800; --coral:#F15F25; --grass:#22B573; --grape:#6754E9; --ocean:#2E8BFF; --peach:#FFB08A;
  --card:#FFFFFF; --line:#F2EDFE; --radius:22px;
  --ela:#F15F25; --math:#2E8BFF; --science:#22B573; --social:#F7A21B;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Quicksand","Nunito",system-ui,sans-serif;font-size:17px;line-height:1.55;color:var(--text);
  background:var(--sky) radial-gradient(circle at 20% 10%,#fff 0,transparent 35%),radial-gradient(circle at 85% 80%,#F2EDFE 0,transparent 30%)}
h1,h2,h3,.display{font-family:"Baloo 2","Fredoka",sans-serif;font-weight:600;color:var(--ink);line-height:1.15;margin:0}
a{color:var(--ocean)}
img,svg{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;font-family:"Baloo 2",sans-serif;align-items:center;justify-content:center;gap:8px;padding:14px 26px;border-radius:999px;border:0;font:inherit;font-weight:800;font-size:1.05rem;cursor:pointer;text-decoration:none;color:#fff;background:var(--ocean);box-shadow:0 5px 0 #1C63C4;transition:transform .08s,box-shadow .08s}
.btn:active{transform:translateY(4px);box-shadow:0 1px 0 #1C63C4}
.btn.sun{background:var(--sun);color:var(--ink);box-shadow:0 5px 0 #D9A324}.btn.sun:active{box-shadow:0 1px 0 #D9A324}
.btn.coral{background:var(--coral);box-shadow:0 5px 0 #C94A3A}.btn.coral:active{box-shadow:0 1px 0 #C94A3A}
.btn.grass{background:var(--grass);box-shadow:0 5px 0 #348F4D}.btn.grass:active{box-shadow:0 1px 0 #348F4D}
.btn.ghost{background:#fff;color:var(--ink);box-shadow:0 5px 0 var(--line)}.btn.ghost:active{box-shadow:0 1px 0 var(--line)}
.btn.sm{padding:9px 16px;font-size:.95rem}
.btn:focus-visible,.grade:focus-visible,.chip:focus-visible,.opt:focus-visible{outline:4px solid var(--grape);outline-offset:3px}
.card{background:var(--card);border-radius:var(--radius);padding:22px;box-shadow:0 6px 0 var(--line)}
.tag{display:inline-block;padding:3px 12px;border-radius:999px;font-weight:800;font-size:.8rem;color:#fff}
.tag.ela{background:var(--ela)}.tag.math{background:var(--math)}.tag.science{background:var(--science)}.tag.social{background:var(--social)}
.muted{color:var(--muted)}
/* nav */
.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:14px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:"Fredoka",sans-serif;font-size:1.5rem;font-weight:600}
.brand .mark{width:40px;height:40px}
.nav-links{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.nav-links a{text-decoration:none;color:var(--ink);font-weight:800;padding:8px 14px;border-radius:999px}
.nav-links a:hover{background:#fff}
/* grade picker */
.grades{display:grid;grid-template-columns:repeat(7,1fr);gap:12px}
.grade{aspect-ratio:1;border:0;border-radius:24px;font-family:"Fredoka",sans-serif;font-size:2.2rem;font-weight:600;color:#fff;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;text-decoration:none;box-shadow:0 7px 0 rgba(0,0,0,.18);transition:transform .1s}
.grade small{font-family:"Nunito",sans-serif;font-size:.8rem;font-weight:800;opacity:.9}
.grade:hover{transform:translateY(-4px) rotate(-2deg)}
.grade:active{transform:translateY(3px);box-shadow:0 2px 0 rgba(0,0,0,.18)}
.grade.k{background:#F15F25}.grade.g1{background:#F7A21B}.grade.g2{background:#FFE800;color:var(--ink)}.grade.g3{background:#22B573}.grade.g4{background:#2E8BFF}.grade.g5{background:#6754E9}.grade.g6{background:#E754A1}
@media(max-width:700px){.grades{grid-template-columns:repeat(4,1fr)}.grade{font-size:1.7rem}}
/* footer */
footer{padding:36px 0 44px;color:var(--muted);font-size:.9rem}
footer a{color:var(--muted)}
/* bacc mascot */
.bacc{width:160px;height:160px}
.bacc .eye{animation:blink 4.5s infinite}
.bacc .eye:last-of-type{animation-delay:.1s}
@keyframes blink{0%,92%,100%{transform:scaleY(1)}95%{transform:scaleY(.08)}}
.bacc .body{animation:bob 3s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@media(prefers-reduced-motion:reduce){.bacc .eye,.bacc .body{animation:none}}