:root{
  --navy:#21344B; --orange:#F57C00; --blue:#1E88E5; --green:#43A047; --purple:#8E24AA; --yellow:#FBC02D;
  --bg:#f6f9fd; --card:#fff; --text:#203247; --muted:#6c7a89; --line:#e4ebf3; --danger:#d93025; --success:#258a40;
  font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box} html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text)} body{overflow-x:hidden}
button,input,select,textarea{font:inherit} button{cursor:pointer} img{max-width:100%}
.loading{min-height:100vh;display:grid;place-items:center}.spinner{width:52px;height:52px;border:6px solid #dbe7f2;border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.app-shell{min-height:100vh}.topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:18px;padding:10px 18px}.brand{display:flex;align-items:center;gap:12px;min-width:240px}.brand img{height:46px;width:auto}.brand small{display:block;color:var(--muted)}
.nav{display:flex;gap:8px;flex:1;flex-wrap:wrap}.nav button,.ghost,.btn{border:0;border-radius:14px;padding:10px 14px;font-weight:750;transition:.18s}.nav button{background:transparent;color:var(--navy)}.nav button.active,.nav button:hover{background:#eef5fb}.top-actions{display:flex;align-items:center;gap:8px}.avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;background:#edf1f5;border:2px solid #fff;box-shadow:0 0 0 1px #dbe2ea}.lang{background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 10px;font-weight:700}
.main{max-width:1180px;margin:0 auto;padding:24px 18px 70px}.hero{background:linear-gradient(135deg,#fff,#eef8ff);border:1px solid var(--line);border-radius:28px;padding:28px;display:grid;grid-template-columns:1.3fr .7fr;gap:24px;box-shadow:0 16px 40px rgba(33,52,75,.08);overflow:hidden;position:relative}.hero:after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:rgba(251,192,45,.16);right:-60px;top:-70px}.hero h1{font-size:clamp(28px,4vw,46px);margin:0 0 8px}.hero p{font-size:18px;color:var(--muted);line-height:1.6}.hero-logo{display:grid;place-items:center}.hero-logo img{max-height:250px;object-fit:contain}.pill{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eef7ff;color:#1267a4;font-weight:800}.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px}.stat b{display:block;font-size:26px}.stat span{color:var(--muted);font-size:13px}
.section-title{display:flex;justify-content:space-between;align-items:end;gap:14px;margin:30px 0 14px}.section-title h2{margin:0}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 9px 24px rgba(25,45,70,.06)}
.world{position:relative;overflow:hidden;min-height:215px;display:flex;flex-direction:column}.world:before{content:"";position:absolute;inset:auto -35px -55px auto;width:130px;height:130px;border-radius:50%;opacity:.14;background:currentColor}.world .world-num{font-size:12px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.world .world-icon{font-size:40px}.world h3{margin:8px 0 6px;font-size:19px}.world .ar{font-family:Tahoma,Arial,sans-serif;direction:rtl;color:#556}.world-footer{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:10px}.stars{letter-spacing:2px}.locked{filter:grayscale(.75);opacity:.67}.world.cyan{color:#1eaac0}.world.orange{color:#f57c00}.world.purple{color:#8e24aa}.world.green{color:#43a047}.world.blue{color:#1e88e5}.world.red{color:#d94b4b}.world.yellow{color:#b88700}.world.pink{color:#d94f91}.world.teal{color:#178c86}.world.indigo{color:#4b57a8}.world.lime{color:#78a814}.world.sky{color:#2f99ce}.world.gold{color:#b78300}
.btn{background:var(--navy);color:#fff}.btn:hover{transform:translateY(-1px);box-shadow:0 7px 18px rgba(33,52,75,.18)}.btn.orange{background:var(--orange)}.btn.green{background:var(--green)}.btn.blue{background:var(--blue)}.btn.red{background:var(--danger)}.btn.secondary{background:#edf3f8;color:var(--navy)}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}.ghost{background:#fff;color:var(--navy);border:1px solid var(--line)}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:22px;background:radial-gradient(circle at top left,#eef9ff 0,#f9fbff 42%,#fff 100%)}.login-card{width:min(900px,100%);display:grid;grid-template-columns:1fr 1fr;background:#fff;border:1px solid var(--line);border-radius:30px;overflow:hidden;box-shadow:0 24px 60px rgba(33,52,75,.12)}.login-art{background:#f7fbff;display:grid;place-items:center;padding:38px}.login-art img{max-height:340px}.login-form{padding:42px;display:flex;flex-direction:column;justify-content:center}.login-form h1{margin:.3em 0}.google-btn{display:flex;align-items:center;justify-content:center;gap:10px;background:#fff;border:1px solid #cfd8e3;border-radius:14px;padding:13px 16px;font-weight:800}.google-dot{width:18px;height:18px;border-radius:50%;background:conic-gradient(#4285F4 0 25%,#34A853 0 50%,#FBBC05 0 75%,#EA4335 0)}
.form-card{max-width:720px;margin:28px auto}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:7px}.field label{font-weight:800}.field input,.field select{width:100%;border:1px solid #ced9e4;background:#fff;border-radius:12px;padding:12px}.field.full{grid-column:1/-1}.notice{padding:14px 16px;border-radius:14px;background:#eef7ff;border:1px solid #d6eaff}.notice.warn{background:#fff8df;border-color:#f3e2a3}.notice.danger{background:#fff0ef;border-color:#f4c6c2}.notice.success{background:#eef9f0;border-color:#c9e8cf}
.lesson-head{display:flex;align-items:center;gap:18px}.lesson-badge{width:70px;height:70px;border-radius:22px;display:grid;place-items:center;background:#eef5fb;font-size:35px}.lesson-head h1{margin:0}.bilingual{display:grid;grid-template-columns:1fr 1fr;gap:14px}.arabic{direction:rtl;text-align:right;font-family:Tahoma,Arial,sans-serif}.rule-list,.example-list{display:grid;gap:12px}.rule{padding:14px;border-radius:16px;background:#f8fafc;border:1px solid var(--line)}.example{padding:16px;border-radius:18px;border:1px solid var(--line);background:#fff}.example.done{outline:3px solid rgba(67,160,71,.18)}.example label{display:flex;gap:10px;align-items:flex-start}.lesson-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.quiz-top{position:sticky;top:68px;z-index:10;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px 16px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 9px 22px rgba(33,52,75,.08)}.progressbar{height:10px;border-radius:999px;background:#eaf0f5;overflow:hidden;flex:1;margin:0 14px}.progressbar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--green));width:0}.qcard{margin-top:18px}.q-meta{display:flex;gap:8px;align-items:center}.tag{padding:5px 9px;border-radius:999px;background:#edf3f8;font-size:12px;font-weight:800}.q-title{font-size:22px;line-height:1.5}.answers{display:grid;gap:10px;margin-top:16px}.answer{border:1px solid #d9e3ec;border-radius:14px;padding:13px;background:#fff;display:flex;gap:10px;align-items:center}.answer:hover{border-color:#8fbce2}.answer input[type=text],.answer input[type=number]{width:100%;border:0;outline:0;font-size:18px}.result-score{text-align:center;padding:24px}.result-score .big{font-size:70px;font-weight:900;color:var(--navy)}.feedback-item{padding:12px;border-radius:14px;border-left:5px solid var(--danger);background:#fff7f6;margin:10px 0}.feedback-item.ok{border-left-color:var(--success);background:#f4fbf5}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff}table{border-collapse:collapse;width:100%;min-width:720px}th,td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}th{background:#f5f8fb;font-size:13px}tr:last-child td{border-bottom:0}.rank{font-weight:900}.rank.top{font-size:22px}.status{display:inline-flex;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:850}.status.approved{background:#eaf7ed;color:#27783a}.status.pending_approval,.status.pending_profile{background:#fff4d8;color:#8a6500}.status.suspended,.status.rejected{background:#fdeaea;color:#a52f2a}.admin-stats{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.admin-actions{display:flex;gap:6px;flex-wrap:wrap}
.badges{display:flex;gap:10px;flex-wrap:wrap}.badge-card{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:15px;padding:10px 12px;background:#fff}.badge-card .ico{font-size:28px}.empty{padding:26px;text-align:center;color:var(--muted)}
.toast-wrap{position:fixed;right:18px;bottom:18px;z-index:100;display:grid;gap:8px}.toast{min-width:260px;max-width:420px;padding:13px 15px;border-radius:14px;color:#fff;background:#203247;box-shadow:0 12px 30px rgba(0,0,0,.18)}.toast.error{background:#b63831}.modal-back{position:fixed;inset:0;background:rgba(13,24,38,.48);display:grid;place-items:center;z-index:90;padding:18px}.modal{width:min(560px,100%);max-height:86vh;overflow:auto;background:#fff;border-radius:22px;padding:22px;box-shadow:0 25px 70px rgba(0,0,0,.22)}.modal-head{display:flex;justify-content:space-between;gap:16px}.x{border:0;background:#eef3f7;border-radius:10px;width:36px;height:36px}.translation-word{font-size:28px;font-weight:900}.translation-ar{font-size:26px;direction:rtl;font-family:Tahoma,Arial,sans-serif;color:var(--purple)}
@media(max-width:900px){.topbar{align-items:flex-start;flex-wrap:wrap}.brand{min-width:auto}.nav{order:3;width:100%;overflow:auto;flex-wrap:nowrap}.hero{grid-template-columns:1fr}.hero-logo{display:none}.stats-row{grid-template-columns:1fr 1fr}.grid{grid-template-columns:1fr 1fr}.admin-stats{grid-template-columns:1fr 1fr 1fr}.login-card{grid-template-columns:1fr}.login-art{padding:24px}.login-art img{max-height:170px}.bilingual{grid-template-columns:1fr}}
@media(max-width:600px){.main{padding:16px 12px 60px}.grid{grid-template-columns:1fr}.stats-row,.admin-stats,.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.top-actions .who{display:none}.login-form{padding:26px}.hero{padding:20px;border-radius:22px}.quiz-top{top:116px}.brand img{height:38px}.nav button{white-space:nowrap}.lesson-head{align-items:flex-start}.lesson-badge{width:56px;height:56px;border-radius:16px;font-size:28px}}