/* grade.css — grade.html */
:root {
--sun:#FFD23F; --coral:#FF6B6B; --sky:#4ECDC4; --grape:#6C63FF;
--cloud:#F8F9FF; --ink:#2B2D42; --muted:#8D99AE; --white:#FFFFFF;
--border:#E8EAF6; --green:#3ECF8E;
--shadow:0 4px 18px rgba(0,0,0,.08); --shadow-lg:0 16px 48px rgba(0,0,0,.13);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Nunito',sans-serif;background:var(--cloud);color:var(--ink)}
/* ── NAV ── */
nav{position:sticky;top:0;z-index:200;background:var(--white);display:flex;align-items:center;justify-content:space-between;padding:0 40px;height:70px;box-shadow:0 3px 0 var(--sun),0 4px 20px rgba(0,0,0,.06)}
.logo{font-family:'Fredoka One',cursive;font-size:1.85rem;color:var(--grape);text-decoration:none}
.logo .spark{color:var(--coral)}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none}
.nav-links > li{position:relative}
.nav-links > li > a{font-weight:800;font-size:.9rem;color:var(--ink);text-decoration:none;padding:8px 16px;border-radius:50px;transition:.15s;display:flex;align-items:center;gap:5px}
.nav-links > li > a:hover{background:var(--cloud);color:var(--grape)}
.nav-links > li > a.active-nav{color:var(--grape);background:#F0EEFF}
.nav-links > li > a .caret{font-size:.6rem;transition:transform .2s;display:inline-block}
.nav-pill{background:var(--grape)!important;color:var(--white)!important;border-radius:50px!important;padding:10px 22px!important;box-shadow:0 4px 14px rgba(108,99,255,.35)}
.nav-pill:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(108,99,255,.45)!important}
.nav-login{border:2px solid var(--border)!important;border-radius:50px!important;padding:8px 18px!important;font-weight:800!important;color:var(--ink)!important;transition:.15s!important}
.nav-login:hover{border-color:var(--grape)!important;color:var(--grape)!important;background:#F5F3FF!important}
.dropdown{display:none;position:absolute;top:calc(100% + 4px);left:0;z-index:9999;min-width:200px}
.dropdown.open{display:block}
.dropdown-inner{background:var(--white);border-radius:18px;box-shadow:0 12px 48px rgba(0,0,0,.18),0 0 0 1.5px rgba(108,99,255,.1);padding:10px;animation:dropIn .15s ease}
@keyframes dropIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.dropdown.grid-drop .dropdown-inner{display:grid;grid-template-columns:1fr 1fr;gap:2px;min-width:220px}
.dropdown.grid-drop .drop-header{grid-column:span 2}
.drop-header{font-size:.7rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding:6px 10px 8px}
.drop-item{display:flex;align-items:center;padding:9px 14px;border-radius:10px;text-decoration:none;color:var(--ink);font-weight:700;font-size:.9rem;white-space:nowrap;transition:background .12s,color .12s}
.drop-item:hover{background:#F0EEFF;color:var(--grape)}
@media(max-width:860px){nav{padding:0 20px}.nav-links{display:none}}
/* ── BREADCRUMB ── */
.breadcrumb-bar{background:var(--white);border-bottom:1.5px solid var(--border);padding:12px 40px;display:flex;align-items:center;gap:8px;font-size:.82rem;font-weight:700;color:var(--muted);flex-wrap:wrap}
.breadcrumb-bar a{color:var(--grape);text-decoration:none}
.breadcrumb-bar a:hover{text-decoration:underline}
.bc-sep{color:#ccc}
/* ── PAGE HERO ── */
.page-hero{padding:48px 60px 40px;border-bottom:3px solid var(--border);position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;top:-80px;right:-80px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(108,99,255,.1),transparent 70%);pointer-events:none}
.page-hero .eyebrow{font-size:.74rem;font-weight:900;text-transform:uppercase;letter-spacing:.1em;color:var(--coral);margin-bottom:8px}
.page-hero h1{font-family:'Fredoka One',cursive;font-size:2.4rem;color:var(--ink);margin-bottom:10px}
.page-hero p{font-size:1rem;color:#666;font-weight:700;max-width:540px;margin-bottom:24px}
.grade-pills{display:flex;flex-wrap:wrap;gap:8px}
.grade-pill{padding:8px 18px;border-radius:50px;border:2.5px solid var(--border);background:var(--white);font-family:'Nunito',sans-serif;font-weight:800;font-size:.85rem;cursor:pointer;color:var(--muted);text-decoration:none;transition:.15s;white-space:nowrap}
.grade-pill:hover{border-color:var(--grape);color:var(--grape)}
.grade-pill.active{background:var(--grape);border-color:var(--grape);color:var(--white);box-shadow:0 4px 14px rgba(108,99,255,.3)}
/* ── SUBJECT FILTER ── */
.filter-bar{padding:20px 60px;background:var(--white);border-bottom:1.5px solid var(--border);display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.filter-bar label{font-size:.78rem;font-weight:900;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.subj-pill{padding:7px 16px;border-radius:50px;border:2px solid var(--border);background:var(--white);font-family:'Nunito',sans-serif;font-weight:700;font-size:.85rem;cursor:pointer;color:var(--muted);transition:.15s}
.subj-pill:hover{border-color:var(--grape);color:var(--grape)}
.subj-pill.on{background:var(--grape);border-color:var(--grape);color:var(--white)}
.search-inp{flex:1;min-width:180px;max-width:320px;border:2px solid var(--border);border-radius:50px;padding:9px 18px;font-family:'Nunito',sans-serif;font-size:.9rem;font-weight:700;outline:none;color:var(--ink);transition:border .15s;margin-left:auto}
.search-inp:focus{border-color:var(--grape)}
/* ── MAIN CONTENT ── */
.page-content{max-width:1280px;margin:0 auto;padding:36px 60px 60px}
/* Section header */
.sec-hdr{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px}
.sec-hdr h2{font-family:'Fredoka One',cursive;font-size:1.5rem;color:var(--ink);display:flex;align-items:center;gap:10px}
.sec-hdr .count-badge{font-size:.78rem;font-weight:800;background:#F0EEFF;color:var(--grape);padding:4px 12px;border-radius:50px}
.view-all{font-weight:800;font-size:.88rem;color:var(--grape);text-decoration:none}
.view-all:hover{text-decoration:underline}
.section-wrap{margin-bottom:48px}
/* ── WORKSHEET CARDS ── */
.ws-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.ws-card{background:var(--white);border-radius:18px;overflow:hidden;box-shadow:var(--shadow);cursor:pointer;text-decoration:none;color:var(--ink);transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}
.ws-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.ws-thumb{height:130px;display:flex;align-items:center;justify-content:center;font-size:3rem;position:relative;overflow:hidden}
.ws-thumb .dots{position:absolute;inset:0;opacity:.12;background-image:radial-gradient(circle,#fff 1.5px,transparent 1.5px);background-size:16px 16px}
.ws-body{padding:14px;flex:1}
.ws-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.tag{font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em;padding:3px 9px;border-radius:50px}
.ws-title{font-weight:900;font-size:.9rem;line-height:1.4;margin-bottom:6px}
.ws-desc{font-size:.76rem;color:var(--muted);font-weight:600;line-height:1.5;margin-bottom:8px}
.ws-meta{font-size:.74rem;color:var(--muted);font-weight:700;display:flex;gap:10px}
.ws-foot{padding:10px 14px;border-top:1.5px solid #F0F4F8;display:flex;align-items:center;justify-content:space-between}
.stars{color:var(--sun);font-size:.8rem}
.dl-btn{background:var(--grape);color:var(--white);border:none;border-radius:50px;padding:6px 14px;font-family:'Nunito',sans-serif;font-weight:800;font-size:.75rem;cursor:pointer;transition:.15s}
.dl-btn:hover{background:#5a52e0}
/* ── QUIZ CARDS ── */
.qz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.qz-card{border-radius:20px;padding:22px 20px;cursor:pointer;text-decoration:none;color:var(--white);display:flex;flex-direction:column;gap:10px;position:relative;overflow:hidden;transition:transform .2s,box-shadow .2s;box-shadow:var(--shadow)}
.qz-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.qz-card::before{content:'';position:absolute;top:-30px;right:-30px;width:110px;height:110px;background:rgba(255,255,255,.08);border-radius:50%;pointer-events:none}
.qz-emoji{font-size:2rem}
.qz-title{font-weight:900;font-size:.97rem;line-height:1.3}
.qz-desc{font-size:.78rem;opacity:.85;font-weight:700;line-height:1.5}
.qz-meta-row{display:flex;align-items:center;gap:10px;font-size:.74rem;font-weight:700;opacity:.8}
.qz-badge{background:rgba(255,255,255,.18);border-radius:50px;padding:3px 10px;font-size:.7rem;font-weight:800}
.start-btn{background:rgba(255,255,255,.95);color:var(--ink);border:none;border-radius:50px;padding:8px 18px;font-family:'Nunito',sans-serif;font-weight:900;font-size:.82rem;cursor:pointer;width:fit-content;transition:transform .15s}
.start-btn:hover{transform:scale(1.05)}
/* Empty state */
.empty-state{text-align:center;padding:48px 20px;color:var(--muted);grid-column:1/-1}
.empty-state .ei{font-size:2.5rem;margin-bottom:12px}
.empty-state h3{font-family:'Fredoka One',cursive;font-size:1.2rem;color:var(--ink);margin-bottom:6px}
.empty-state p{font-size:.88rem;font-weight:700}
/* Skeleton */
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.skeleton{border-radius:18px;background:linear-gradient(90deg,#eee 25%,#f5f5f5 50%,#eee 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;height:200px}
@media(max-width:860px){
.page-hero{padding:36px 24px 28px}
.filter-bar{padding:16px 24px}
.page-content{padding:24px 16px 40px}
nav{padding:0 20px}
.nav-links{display:none}
}
/* ── Pagination ── */
.pagination { display:flex; gap:8px; margin-top:28px; flex-wrap:wrap; align-items:center; }
.pg-btn {
min-width:38px; height:38px; border-radius:10px; border:2px solid var(--border);
background:var(--white); font-family:'Nunito',sans-serif; font-weight:800;
font-size:.88rem; cursor:pointer; color:var(--ink); transition:.15s; padding:0 12px;
}
.pg-btn:hover { border-color:var(--grape); color:var(--grape); }
.pg-btn.active { background:var(--grape); border-color:var(--grape); color:var(--white); }
.pg-btn.next { background:var(--grape); border-color:var(--grape); color:var(--white); padding:0 20px; }