/* quiz.css */
: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}

    /* ── MAIN LAYOUT ── */
    .page-wrap{max-width:1160px;margin:0 auto;padding:36px 40px 60px;display:grid;grid-template-columns:1fr 320px;gap:36px;align-items:start}

    /* ── LEFT ── */
    .qz-label{font-size:.74rem;font-weight:900;text-transform:uppercase;letter-spacing:.09em;color:var(--coral);margin-bottom:8px}
    .qz-main-title{font-family:'Fredoka One',cursive;font-size:2rem;color:var(--ink);margin-bottom:6px;line-height:1.2}
    .qz-subtitle{font-size:.97rem;line-height:1.7;color:#555;font-weight:600;margin-bottom:24px}

    /* Quiz info strip */
    .info-strip{display:flex;gap:20px;flex-wrap:wrap;margin-bottom:28px}
    .info-pill{display:flex;align-items:center;gap:8px;background:var(--white);border-radius:50px;padding:8px 18px;font-weight:800;font-size:.85rem;box-shadow:var(--shadow);border:1.5px solid var(--border)}
    .info-pill .ip-icon{font-size:1rem}

    /* ── QUIZ CARD ── */
    .quiz-card{background:var(--white);border-radius:24px;box-shadow:var(--shadow-lg);overflow:hidden;margin-bottom:28px}

    /* Start screen */
    .start-screen{padding:48px 40px;text-align:center}
    .start-emoji{font-size:4rem;margin-bottom:16px}
    .start-title{font-family:'Fredoka One',cursive;font-size:1.8rem;color:var(--ink);margin-bottom:10px}
    .start-desc{font-size:.95rem;color:var(--muted);font-weight:700;line-height:1.7;max-width:420px;margin:0 auto 28px}
    .start-stats{display:flex;gap:20px;justify-content:center;margin-bottom:32px;flex-wrap:wrap}
    .ss-item{background:var(--cloud);border-radius:14px;padding:14px 24px;text-align:center}
    .ss-num{font-family:'Fredoka One',cursive;font-size:1.5rem;color:var(--grape)}
    .ss-lbl{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
    .btn-start{background:var(--grape);color:var(--white);border:none;border-radius:50px;padding:16px 48px;font-family:'Nunito',sans-serif;font-weight:900;font-size:1.05rem;cursor:pointer;box-shadow:0 6px 24px rgba(108,99,255,.4);transition:.15s;display:inline-flex;align-items:center;gap:10px}
    .btn-start:hover{background:#5a52e0;transform:translateY(-3px);box-shadow:0 10px 32px rgba(108,99,255,.5)}

    /* Progress header */
    .quiz-header{background:linear-gradient(135deg,var(--grape),#4F46E5);padding:20px 28px;display:none}
    .qh-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
    .qh-counter{font-weight:900;font-size:.9rem;color:rgba(255,255,255,.8)}
    .qh-score{font-weight:900;font-size:.9rem;color:var(--sun)}
    .qh-timer{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.15);border-radius:50px;padding:5px 14px;font-weight:900;font-size:.88rem;color:var(--white)}
    .qh-progress{height:8px;background:rgba(255,255,255,.2);border-radius:50px;overflow:hidden}
    .qh-bar{height:100%;background:var(--sun);border-radius:50px;transition:width .4s ease}

    /* Question body */
    .quiz-body{padding:32px 36px;display:none}
    .q-number{font-size:.72rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:10px}
    .q-text{font-family:'Fredoka One',cursive;font-size:1.45rem;color:var(--ink);line-height:1.35;margin-bottom:28px}
    .q-options{display:flex;flex-direction:column;gap:12px}
    .q-opt{display:flex;align-items:center;gap:16px;padding:14px 20px;border-radius:16px;border:2.5px solid var(--border);background:var(--white);cursor:pointer;font-family:'Nunito',sans-serif;font-weight:800;font-size:.97rem;color:var(--ink);transition:.15s;text-align:left}
    .q-opt:hover:not(.answered){border-color:var(--grape);background:#F5F3FF;transform:translateX(4px)}
    .q-opt.selected{border-color:var(--grape);background:#F0EEFF;color:var(--grape)}
    .q-opt.correct{border-color:var(--green);background:#E8FFF4;color:#1a7a4a}
    .q-opt.wrong{border-color:var(--coral);background:#FFF0F0;color:#c0392b}
    .q-opt.reveal-correct{border-color:var(--green);background:#E8FFF4;color:#1a7a4a}
    .opt-letter{width:36px;height:36px;border-radius:50%;background:var(--cloud);border:2px solid var(--border);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:.85rem;flex-shrink:0;transition:.15s}
    .q-opt.correct .opt-letter{background:var(--green);border-color:var(--green);color:var(--white)}
    .q-opt.wrong .opt-letter{background:var(--coral);border-color:var(--coral);color:var(--white)}
    .q-opt.reveal-correct .opt-letter{background:var(--green);border-color:var(--green);color:var(--white)}
    .q-opt.selected .opt-letter{background:var(--grape);border-color:var(--grape);color:var(--white)}

    /* Feedback */
    .q-feedback{display:none;margin-top:18px;padding:16px 20px;border-radius:14px;font-weight:700;font-size:.95rem;line-height:1.5;align-items:flex-start;gap:12px}
    .q-feedback.correct-fb{background:#E8FFF4;color:#1a7a4a}
    .q-feedback.wrong-fb{background:#FFF0F0;color:#c0392b}
    .fb-icon{font-size:1.4rem;flex-shrink:0}
    .fb-text strong{display:block;font-weight:900;margin-bottom:3px}

    /* Next button */
    .quiz-footer{padding:20px 36px 28px;display:none;justify-content:space-between;align-items:center;border-top:1.5px solid var(--border)}
    .btn-next{background:var(--grape);color:var(--white);border:none;border-radius:50px;padding:13px 32px;font-family:'Nunito',sans-serif;font-weight:900;font-size:.97rem;cursor:pointer;display:flex;align-items:center;gap:8px;transition:.15s;box-shadow:0 4px 16px rgba(108,99,255,.3)}
    .btn-next:hover{background:#5a52e0;transform:translateY(-2px)}
    .skip-btn{background:none;border:none;color:var(--muted);font-family:'Nunito',sans-serif;font-weight:800;font-size:.88rem;cursor:pointer;padding:8px 16px;border-radius:50px;transition:.15s}
    .skip-btn:hover{background:var(--cloud);color:var(--ink)}

    /* Results screen */
    .results-screen{padding:40px;display:none;text-align:center}
    .results-emoji{font-size:4rem;margin-bottom:14px}
    .results-title{font-family:'Fredoka One',cursive;font-size:2rem;color:var(--ink);margin-bottom:8px}
    .results-sub{font-size:.97rem;color:var(--muted);font-weight:700;margin-bottom:28px}
    .score-circle{width:140px;height:140px;border-radius:50%;background:linear-gradient(135deg,var(--grape),#4F46E5);display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0 auto 28px;box-shadow:0 8px 32px rgba(108,99,255,.4)}
    .score-pct{font-family:'Fredoka One',cursive;font-size:2.2rem;color:var(--white);line-height:1}
    .score-lbl{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:rgba(255,255,255,.7);margin-top:4px}
    .results-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:28px}
    .rs-item{background:var(--cloud);border-radius:14px;padding:14px}
    .rs-num{font-family:'Fredoka One',cursive;font-size:1.5rem}
    .rs-lbl{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
    .results-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
    .btn-retry{background:var(--grape);color:var(--white);border:none;border-radius:50px;padding:13px 28px;font-family:'Nunito',sans-serif;font-weight:900;font-size:.97rem;cursor:pointer;box-shadow:0 4px 16px rgba(108,99,255,.3);transition:.15s}
    .btn-retry:hover{background:#5a52e0;transform:translateY(-2px)}
    .btn-print-results{background:var(--white);color:var(--grape);border:2.5px solid var(--grape);border-radius:50px;padding:12px 24px;font-family:'Nunito',sans-serif;font-weight:900;font-size:.93rem;cursor:pointer;transition:.15s}
    .btn-print-results:hover{background:var(--grape);color:var(--white)}

    /* Review answers */
    .review-section{margin-top:28px;text-align:left}
    .review-title{font-family:'Fredoka One',cursive;font-size:1.2rem;color:var(--ink);margin-bottom:16px}
    .review-item{background:var(--cloud);border-radius:14px;padding:16px;margin-bottom:10px;border-left:4px solid var(--border)}
    .review-item.r-correct{border-left-color:var(--green)}
    .review-item.r-wrong{border-left-color:var(--coral)}
    .ri-q{font-weight:800;font-size:.9rem;margin-bottom:8px;color:var(--ink)}
    .ri-answer{font-size:.82rem;font-weight:700}
    .ri-correct{color:#1a7a4a}
    .ri-wrong{color:#c0392b}
    .ri-exp{font-size:.8rem;color:var(--muted);font-weight:700;margin-top:4px}

    /* Description & standards */
    .desc-card{background:var(--white);border-radius:20px;padding:24px;box-shadow:var(--shadow);margin-bottom:20px}
    .desc-card h3{font-family:'Fredoka One',cursive;font-size:1.1rem;color:var(--ink);margin-bottom:12px}
    .desc-card p{font-size:.92rem;line-height:1.75;color:#444;font-weight:600}
    .standards-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}
    .standard-item{display:flex;align-items:flex-start;gap:10px;padding:10px 14px;background:var(--cloud);border-radius:12px}
    .standard-badge{font-size:.68rem;font-weight:900;text-transform:uppercase;background:#F0EEFF;color:var(--grape);padding:3px 8px;border-radius:6px;white-space:nowrap}
    .standard-text{font-size:.82rem;font-weight:700;color:var(--ink);line-height:1.5}

    /* Related */
    .related-card-small{background:var(--white);border-radius:20px;box-shadow:var(--shadow);overflow:hidden}
    .related-card-small h3{font-family:'Fredoka One',cursive;font-size:1.1rem;color:var(--ink);padding:18px 18px 12px}
    .rc-item{display:flex;align-items:center;gap:12px;padding:10px 18px;text-decoration:none;color:var(--ink);border-top:1px solid var(--border);transition:.15s}
    .rc-item:hover{background:var(--cloud)}
    .rc-icon{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}
    .rc-info .rc-name{font-weight:800;font-size:.88rem}
    .rc-info .rc-meta{font-size:.74rem;color:var(--muted);font-weight:700}

    /* Sidebar */
    .sidebar{display:flex;flex-direction:column;gap:16px;position:sticky;top:90px}
    .action-card{background:var(--white);border-radius:20px;padding:22px;box-shadow:var(--shadow)}
    .action-card h3{font-weight:900;font-size:.82rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-bottom:14px}
    .btn-start-sm{width:100%;padding:14px;border-radius:50px;border:none;background:var(--grape);color:var(--white);font-family:'Nunito',sans-serif;font-weight:900;font-size:.97rem;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 4px 16px rgba(108,99,255,.3);transition:.15s;margin-bottom:10px}
    .btn-start-sm:hover{background:#5a52e0;transform:translateY(-2px)}
    .btn-print-ws{width:100%;padding:12px;border-radius:50px;border:2.5px solid var(--grape);background:var(--white);color:var(--grape);font-family:'Nunito',sans-serif;font-weight:900;font-size:.9rem;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:.15s;margin-bottom:10px}
    .btn-print-ws:hover{background:var(--grape);color:var(--white)}
    .btn-save-q{width:100%;padding:11px;border-radius:50px;border:2px solid var(--border);background:var(--white);color:var(--muted);font-family:'Nunito',sans-serif;font-weight:800;font-size:.88rem;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:.15s}
    .btn-save-q:hover{border-color:var(--coral);color:var(--coral)}
    .btn-save-q.saved{border-color:var(--coral);color:var(--coral);background:#FFF5F5}
    .action-divider{height:1px;background:var(--border);margin:14px 0}
    .share-row{display:flex;gap:8px}
    .share-btn{flex:1;padding:9px;border-radius:10px;border:2px solid var(--border);background:var(--white);font-family:'Nunito',sans-serif;font-weight:800;font-size:.76rem;cursor:pointer;color:var(--ink);transition:.15s;text-align:center}
    .share-btn:hover{border-color:var(--grape);color:var(--grape);background:#F5F3FF}

    .meta-card{background:var(--white);border-radius:20px;padding:20px;box-shadow:var(--shadow)}
    .meta-item{padding:10px 0;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:4px}
    .meta-item:last-child{border-bottom:none;padding-bottom:0}
    .meta-label{font-size:.7rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
    .meta-value{display:flex;flex-wrap:wrap;gap:6px}
    .meta-tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:50px;font-size:.78rem;font-weight:800;text-decoration:none}
    .meta-tag:hover{opacity:.8}

    .rating-row{display:flex;align-items:center;gap:8px;margin-top:14px}
    .rating-stars{display:flex;gap:3px}
    .rating-star{font-size:1.3rem;cursor:pointer;transition:transform .1s;color:#ddd}
    .rating-star.filled{color:var(--sun)}
    .rating-star:hover{transform:scale(1.2)}
    .rating-text{font-size:.8rem;font-weight:700;color:var(--muted)}

    #toast{position:fixed;bottom:24px;right:24px;background:var(--ink);color:var(--white);padding:12px 20px;border-radius:12px;font-weight:800;font-size:.9rem;box-shadow:var(--shadow-lg);display:none;z-index:999;align-items:center;gap:8px}
    #toast.show{display:flex;animation:toastIn .3s ease}
    @keyframes toastIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

    @media(max-width:900px){
      .page-wrap{grid-template-columns:1fr;padding:20px 16px 40px}
      .sidebar{position:static}
      nav{padding:0 20px}
      .nav-links{display:none}
      .quiz-body,.quiz-footer{padding:20px}
      .start-screen{padding:32px 20px}
    }