:root{--sky:#dff7ff;--purple:#6c5ce7;--pink:#ff7675;--yellow:#ffd93d;--green:#00b894;--blue:#5b8def;--text:#25324b;--muted:#6b7280;--card:#fff;--border:#e7ddff}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:radial-gradient(circle at 10% 10%,#fff7cc 0 12%,transparent 13%),radial-gradient(circle at 90% 8%,#ffd7ee 0 10%,transparent 11%),linear-gradient(135deg,#dff7ff,#f7ecff);min-height:100vh}a{text-decoration:none;color:inherit}main{min-height:calc(100vh - 150px)}.site-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 6vw;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);border-bottom:1px solid #eadfff}.brand{display:flex;align-items:center;gap:12px}.brand-icon,.avatar{display:grid;place-items:center;width:58px;height:58px;border-radius:20px;background:linear-gradient(135deg,#ff7675,#ffd93d,#6c5ce7);color:white;font-weight:900;box-shadow:0 10px 22px #0002}.brand b{font-size:22px}.brand small{display:block;color:var(--muted);margin-top:3px}.main-nav{display:flex;align-items:center;gap:8px}.main-nav a{padding:10px 13px;border-radius:14px;font-weight:700}.main-nav a:hover,.nav-primary{background:linear-gradient(135deg,var(--blue),var(--purple));color:white}.nav-logout{background:#fff1f1;color:#e74c3c}.menu-btn{display:none;border:0;background:#fff;border-radius:12px;padding:10px 13px;font-size:22px}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;padding:46px 6vw 28px}.hero-card,.panel,.auth-card,.lesson-card,.profile-card{background:rgba(255,255,255,.92);border:2px solid var(--border);border-radius:30px;box-shadow:0 18px 38px #0001}.hero-card{padding:34px}.hero h1{font-size:48px;line-height:1.1;margin:0 0 14px}.hero p{font-size:18px;color:#526076;line-height:1.7}.hero-actions,.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.btn{border:0;border-radius:18px;padding:13px 20px;font-weight:900;cursor:pointer;display:inline-flex;justify-content:center;align-items:center;gap:8px}.btn.primary{background:linear-gradient(135deg,var(--blue),var(--purple));color:white}.btn.yellow{background:var(--yellow);color:#4b3b00}.btn.ghost{background:#edf4ff;color:#31507c}.btn.danger{background:#ff6b6b;color:white}.mascot{min-height:360px;display:grid;place-items:center;text-align:center;position:relative;overflow:hidden}.mascot .face{font-size:130px;filter:drop-shadow(0 14px 12px #0002)}.bubble{position:absolute;background:white;border:2px dashed #ffd93d;border-radius:24px;padding:12px 16px;font-weight:800}.bubble.one{top:35px;left:35px}.bubble.two{right:36px;bottom:44px}.section{padding:24px 6vw}.section-title{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:18px}.section-title h2{font-size:32px;margin:0}.section-title p{margin:7px 0;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}.feature-card,.topic-card,.quiz-card,.history-card{background:white;border:2px solid #eadfff;border-radius:26px;padding:20px;box-shadow:0 12px 26px #0001;transition:.2s}.feature-card:hover,.topic-card:hover{transform:translateY(-5px)}.feature-icon{font-size:52px}.topic-img,.word-img,.quiz-img{width:100%;height:170px;object-fit:cover;border-radius:22px;background:#f4f7ff;border:2px solid #eef2ff}.topic-card h3,.feature-card h3{font-size:24px;margin:14px 0 8px}.topic-card p,.feature-card p,.muted{color:var(--muted)}.auth-wrap{min-height:calc(100vh - 150px);display:grid;place-items:center;padding:34px 20px}.auth-card{width:min(470px,100%);padding:28px}.auth-card h1{text-align:center;margin:8px 0}.auth-card p{text-align:center;color:var(--muted)}label{display:block;font-weight:800;margin:14px 0 7px}input,select,textarea{width:100%;border:2px solid #dbe8ff;border-radius:16px;padding:13px 14px;font-size:15px;outline:none;background:#fbfdff}input:focus,textarea:focus{border-color:var(--blue)}.alert{padding:12px 14px;border-radius:16px;margin:14px 0;font-weight:700}.alert.error{background:#fff1f1;color:#d63031}.alert.success{background:#e9fff6;color:#008c6a}.page-head{padding:34px 6vw 12px}.page-head h1{font-size:42px;margin:0}.page-head p{color:var(--muted);font-size:18px}.lesson-card{padding:24px}.word-layout{display:grid;grid-template-columns:360px 1fr;gap:24px;align-items:center}.word-img{height:300px}.word-main h1{font-size:56px;margin:0;color:var(--purple)}.word-main h2{font-size:30px;margin:8px 0;color:#ff7675}.example{background:#fff9db;border:2px dashed #ffd93d;border-radius:20px;padding:16px;margin:20px 0;font-size:20px}.word-controls{display:flex;flex-wrap:wrap;gap:12px}.progress-line{height:12px;background:#edf2ff;border-radius:99px;overflow:hidden;margin:16px 0}.progress-line span{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--yellow));width:0}.quiz-card{max-width:780px;margin:0 auto}.quiz-question{font-size:28px;font-weight:900;margin:8px 0 18px}.options{display:grid;gap:12px}.option-btn{border:2px solid #dbe8ff;background:#fbfdff;border-radius:18px;padding:14px;text-align:left;font-size:17px;font-weight:800;cursor:pointer}.option-btn:hover{border-color:var(--blue)}.option-btn.correct{background:#e9fff6;border-color:#00b894}.option-btn.wrong{background:#fff1f1;border-color:#ff6b6b}.score-box{text-align:center;padding:30px}.score-box strong{font-size:60px;color:var(--purple)}.practice-box{display:grid;grid-template-columns:1fr 1fr;gap:18px}.practice-word{font-size:44px;color:var(--purple);font-weight:900}.profile-grid{display:grid;grid-template-columns:320px 1fr;gap:18px}.profile-card{padding:24px}.profile-top{text-align:center}.profile-top .avatar{margin:0 auto 12px;font-size:24px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.stat{background:#f8fbff;border:2px solid #eef2ff;border-radius:20px;padding:15px;text-align:center}.stat b{font-size:30px;color:var(--purple);display:block}.table{width:100%;border-collapse:collapse;background:white;border-radius:18px;overflow:hidden}.table th,.table td{padding:12px;border-bottom:1px solid #eef2ff;text-align:left}.site-footer{text-align:center;padding:26px 6vw;color:#5f6c7b}.empty{padding:34px;text-align:center;color:var(--muted);background:white;border-radius:24px;border:2px dashed #dbe8ff}@media(max-width:900px){.menu-btn{display:block}.main-nav{display:none;position:absolute;top:82px;left:16px;right:16px;background:white;border-radius:22px;padding:12px;box-shadow:0 14px 28px #0002;flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.hero,.word-layout,.practice-box,.profile-grid{grid-template-columns:1fr}.hero h1{font-size:36px}.word-img{height:230px}.stats{grid-template-columns:1fr}.site-header{padding:12px 16px}}

/* ===== One-door portal additions ===== */
.portal-wrap{min-height:calc(100vh - 90px);padding:42px 18px;background:linear-gradient(135deg,#e8f8ff,#fff6d9 55%,#f4e9ff);}
.portal-card{max-width:1040px;margin:0 auto;background:rgba(255,255,255,.92);border-radius:32px;padding:28px;box-shadow:0 18px 45px rgba(70,70,140,.16);border:3px solid rgba(255,217,61,.55)}
.portal-hero{display:grid;grid-template-columns:1.4fr .8fr;gap:24px;align-items:center}.portal-hero h1{font-size:clamp(32px,5vw,56px);line-height:1.05;margin:0 0 14px;color:#483D8B}.portal-hero p{font-size:18px;color:#5e587a}.portal-mascot{font-size:110px;text-align:center;filter:drop-shadow(0 14px 18px rgba(0,0,0,.12))}.portal-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}.portal-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:26px}.portal-tile{background:#fff;border-radius:26px;padding:20px;text-decoration:none;color:#483D8B;box-shadow:0 10px 24px rgba(0,0,0,.08);border:2px solid #eef2ff}.portal-tile span{font-size:42px}.portal-tile h3{margin:10px 0 6px}.role-pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border-radius:999px;padding:9px 14px;box-shadow:0 8px 18px rgba(0,0,0,.08);font-weight:800;color:#6C5CE7}.admin-link{background:#6C5CE7;color:#fff!important;border-radius:999px;padding:10px 14px!important}@media(max-width:800px){.portal-hero,.portal-grid{grid-template-columns:1fr}.portal-mascot{font-size:84px}}


/* ===== Admin dashboard merged CSS ===== */
:root{
    --bg:#eef8ff;--card:#fff;--primary:#5b8def;--primary2:#7c5cff;--accent:#ffd93d;--text:#22324a;--muted:#718096;--border:#d9c8ff;--danger:#ff6b6b;--success:#00b894;
}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:linear-gradient(135deg,#dff7ff,#f7ecff);color:var(--text)}a{text-decoration:none;color:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:280px;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);border-right:1px solid #e7dcff;padding:20px;position:sticky;top:0;height:100vh;overflow:auto}.logo{display:flex;gap:12px;align-items:center;margin-bottom:20px}.logo span,.brand-logo{display:grid;place-items:center;width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,#ff6b6b,#ffd93d,#6c5ce7);color:white;font-weight:900;box-shadow:0 8px 20px #0002}.logo b{font-size:20px}.logo small{display:block;color:var(--muted);margin-top:4px}.nav-item{display:flex;align-items:center;gap:10px;padding:13px 12px;margin:8px 0;border-radius:16px;color:#34495e;transition:.2s}.nav-item:hover,.nav-item.active{background:linear-gradient(135deg,var(--primary),var(--primary2));color:white;transform:translateX(4px)}.nav-icon{font-size:22px}.nav-item em{margin-left:auto;background:#fff3;border-radius:999px;padding:2px 8px;font-style:normal;font-size:12px}.permission-box{background:#fff7d6;border:2px dashed #ffd93d;border-radius:18px;margin-top:20px;padding:14px}.permission-box p{margin:7px 0}.main{flex:1;padding:28px;overflow:hidden}.topbar{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:20px}.topbar h1{margin:0;font-size:34px}.topbar p{margin:6px 0;color:var(--muted)}.admin-pill{display:flex;gap:10px;align-items:center;background:white;border-radius:18px;padding:12px 14px;box-shadow:0 8px 20px #0001}.admin-pill small{color:var(--muted)}.admin-pill a{background:#ff7675;color:white;padding:8px 10px;border-radius:10px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:20px}.stat-card{background:white;border-radius:18px;padding:16px;box-shadow:0 8px 20px #0001;border:2px solid transparent}.stat-card.selected{border-color:var(--primary)}.stat-card span{font-size:28px}.stat-card b{display:block;font-size:28px;margin-top:8px}.stat-card small{color:var(--muted)}.panel,.form-card,.login-card{background:white;border-radius:24px;padding:20px;box-shadow:0 12px 30px #0001;border:2px solid #eadfff}.panel-head{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:16px}.search{display:flex;gap:8px;flex:1}.search input,input,textarea,select{width:100%;border:2px solid #dbe8ff;border-radius:14px;padding:12px 14px;font-size:15px;outline:none;background:#fbfdff}input:focus,textarea:focus,select:focus{border-color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;border:none;border-radius:14px;padding:11px 16px;font-weight:700;cursor:pointer}.btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:white}.btn.secondary{background:#edf2ff;color:#31507c}.btn.danger,.btn.del{background:var(--danger);color:white}.btn.edit{background:#ffd93d;color:#333}.btn.small{padding:7px 10px;border-radius:10px;font-size:13px}.btn.full{width:100%;margin-top:12px}.table-wrap{overflow:auto;border-radius:16px;border:1px solid #eef2ff}table{width:100%;border-collapse:collapse;background:white;min-width:850px}th,td{padding:12px;border-bottom:1px solid #eef2ff;text-align:left;vertical-align:middle}th{background:#f7fbff;position:sticky;top:0;z-index:1}tr:hover td{background:#fbfdff}.actions{white-space:nowrap}.image-cell{display:flex;align-items:center;gap:8px;max-width:280px}.image-cell img{width:42px;height:42px;object-fit:cover;border-radius:10px;border:1px solid #e5e7eb}.image-cell span{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis}.muted{color:var(--muted)}.empty{text-align:center;color:var(--muted);padding:40px}.panel-foot{color:var(--muted);font-size:13px;margin-top:12px}.alert{padding:12px 14px;border-radius:14px;margin:12px 0}.alert.success{background:#e9fff6;color:#008c6a}.alert.error{background:#fff1f1;color:#d63031}.form-page,.login-page{min-height:100vh;display:grid;place-items:center;padding:24px}.form-card{width:min(920px,100%)}.form-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.form-head h1{margin:0}.crud-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.field label{display:block;font-weight:700;margin-bottom:7px}.field small{color:var(--muted);font-weight:400}.field textarea{resize:vertical}.preview-img{width:100px;height:100px;object-fit:cover;border-radius:18px;border:2px solid #e8dfff;margin-bottom:8px;background:#f7fbff}.form-actions{grid-column:1/-1;display:flex;gap:12px;justify-content:flex-end;border-top:1px solid #eef2ff;padding-top:16px}.login-card{width:min(420px,100%);text-align:center}.login-card h1{margin-bottom:6px}.login-card p,.login-card small{color:var(--muted)}.login-card form{text-align:left;margin-top:18px}.login-card label{display:block;font-weight:700;margin:12px 0 6px}@media(max-width:900px){.app-shell{display:block}.sidebar{width:auto;height:auto;position:relative}.main{padding:16px}.topbar,.panel-head{flex-direction:column;align-items:stretch}.crud-form{grid-template-columns:1fr}}


/* CSS-only mobile menu */
.nav-toggle{display:none}.menu-btn{user-select:none}@media(max-width:900px){.nav-toggle:checked ~ .main-nav{display:flex}}
.quiz-result{background:#fff;border:2px solid #eadfff;border-radius:24px;padding:22px;margin-bottom:18px}.option-row{display:block;border:2px solid #dbe8ff;border-radius:18px;padding:14px;margin:10px 0;background:#fbfdff;font-weight:800}.option-row input{width:auto;margin-right:10px}.option-row.correct{background:#e9fff6;border-color:#00b894}.option-row.wrong{background:#fff1f1;border-color:#ff6b6b}.speak-note{display:inline-flex;border-radius:18px;padding:13px 20px;font-weight:900;background:#edf4ff;color:#31507c}