:root {
        --primary-blue: #1E40AF;
        --deep-navy: #1E3A8A;
        --success-green: #059669;
        --accent-gold: #F59E0B;
        --warm-orange: #EA580C;
        --light-bg: #F8FAFC;
        --soft-gray: #F1F5F9;
        --white: #FFFFFF;
        --text-dark: #0F172A;
        --text-medium: #334155;
        --text-light: #64748B;
        --border-light: #E2E8F0;
    }

    .screen-reader-text {
        border:0; clip:rect(1px,1px,1px,1px); clip-path:inset(50%);
        height:1px; margin:-1px; overflow:hidden; padding:0;
        position:absolute; width:1px; word-wrap:normal;
    }

    * { margin: 0; padding: 0; box-sizing: border-box; }

    body {
        font-family: 'Inter', sans-serif;
        background: var(--white);
        color: var(--text-dark);
        line-height: 1.7;
        font-size: 18px;
        overflow-x: hidden;
    }

    h1, h2, h3, h4, h5 { font-family: 'Playfair Display', serif; }

    /* ===== HERO ===== */
    .test-hero {
        background: linear-gradient(135deg, #1E3A8A 0%, #1E40AF 60%, #2563EB 100%);
        padding: 4rem 2rem;
        color: white;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .test-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    }

    .test-hero-content {
        max-width: 800px;
        margin: 0 auto;
        position: relative;
        z-index: 1;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: rgba(255,255,255,0.15);
        border: 1px solid rgba(255,255,255,0.3);
        padding: 0.6rem 1.5rem;
        border-radius: 50px;
        font-size: 15px;
        font-weight: 700;
        margin-bottom: 2rem;
        backdrop-filter: blur(10px);
    }

    .test-hero h2 {
        font-size: 3.2rem;
        font-weight: 700;
        line-height: 1.15;
        margin-bottom: 1.2rem;
        color: white;
    }

    .test-hero p {
        font-size: 1.25rem;
        opacity: 0.9;
        line-height: 1.7;
        margin-bottom: 2.5rem;
        max-width: 640px;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-features-row {
        display: flex;
        justify-content: center;
        gap: 2rem;
        flex-wrap: wrap;
        margin-top: 2rem;
    }

    .hero-feat {
        display: flex;
        align-items: center;
        gap: 0.6rem;
        font-size: 16px;
        font-weight: 600;
        opacity: 0.95;
    }

    .actfl-badge {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: #1E3A8A;
        border: 2px solid var(--accent-gold);
        padding: 0.4rem 1rem;
        border-radius: 50px;
        font-size: 13px;
        font-weight: 700;
        margin-top: 1rem;
        color: white;
    }

    /* ===== LEVELS OVERVIEW ===== */
    .levels-preview {
        padding: 4rem 2rem;
        background: var(--light-bg);
    }

    .levels-preview .container {
        max-width: 1100px;
        margin: 0 auto;
    }

    .section-center {
        text-align: center;
        margin-bottom: 3rem;
    }

    .section-label {
        display: inline-block;
        background: var(--primary-blue);
        color: white;
        padding: 0.5rem 1.5rem;
        border-radius: 50px;
        font-size: 14px;
        font-weight: 700;
        letter-spacing: 1px;
        text-transform: uppercase;
        margin-bottom: 1.2rem;
    }

    .section-center h2 {
        font-size: 2.5rem;
        color: var(--text-dark);
        margin-bottom: 0.8rem;
    }

    .section-center p {
        font-size: 1.1rem;
        color: var(--text-medium);
    }

    .levels-row {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem;
    }

    .level-preview-card {
        background: white;
        border-radius: 16px;
        padding: 2rem;
        text-align: center;
        border: 2px solid var(--border-light);
        transition: all 0.3s ease;
    }

    .level-preview-card:hover {
        border-color: var(--primary-blue);
        transform: translateY(-4px);
        box-shadow: 0 10px 30px rgba(30,64,175,0.12);
    }

    .level-emoji { font-size: 2.5rem; display: block; margin-bottom: 1rem; }

    .level-badge {
        display: inline-block;
        padding: 0.4rem 1rem;
        border-radius: 50px;
        font-size: 13px;
        font-weight: 700;
        margin-bottom: 1rem;
    }

    .badge-novice { background: #DBEAFE; color: #1E40AF; }
    .badge-intermediate { background: #D1FAE5; color: #065F46; }
    .badge-advanced { background: #FEF3C7; color: #92400E; }
    .badge-superior { background: #FCE7F3; color: #9D174D; }

    .level-preview-card h3 {
        font-size: 20px;
        font-weight: 700;
        margin-bottom: 0.8rem;
        color: var(--text-dark);
    }

    .level-preview-card p {
        font-size: 15px;
        color: var(--text-medium);
        line-height: 1.6;
    }

    /* ===== TEST CONTAINER ===== */
    .test-section {
        padding: 4rem 2rem 6rem;
        background: white;
    }

    .test-container {
        max-width: 820px;
        margin: 0 auto;
    }

    /* Progress Bar */
    .progress-wrapper {
        margin-bottom: 2.5rem;
        background: var(--soft-gray);
        border-radius: 20px;
        padding: 1.5rem 2rem;
        display: flex;
        align-items: center;
        gap: 2rem;
    }

    .progress-info {
        flex: 1;
    }

    .progress-label {
        font-size: 14px;
        font-weight: 700;
        color: var(--text-light);
        text-transform: uppercase;
        letter-spacing: 1px;
        margin-bottom: 0.8rem;
    }

    .progress-bar-bg {
        background: var(--border-light);
        border-radius: 50px;
        height: 10px;
        overflow: hidden;
    }

    .progress-bar-fill {
        height: 100%;
        background: linear-gradient(to right, var(--primary-blue), var(--accent-gold));
        border-radius: 50px;
        transition: width 0.5s ease;
        width: 0%;
    }

    .progress-count {
        font-size: 28px;
        font-weight: 900;
        color: var(--primary-blue);
        white-space: nowrap;
    }

    .progress-count span {
        font-size: 16px;
        font-weight: 500;
        color: var(--text-light);
    }

    /* Screens */
    .screen { display: none; }
    .screen.active { display: block; }

    /* Welcome Screen */
    .welcome-card {
        background: white;
        border-radius: 24px;
        border: 2px solid var(--border-light);
        padding: 4rem;
        text-align: center;
        box-shadow: 0 8px 30px rgba(0,0,0,0.06);
    }

    .welcome-icon { font-size: 5rem; display: block; margin-bottom: 1.5rem; }

    .welcome-card h2 {
        font-size: 2.4rem;
        color: var(--text-dark);
        margin-bottom: 1rem;
    }

    .welcome-card > p {
        font-size: 1.1rem;
        color: var(--text-medium);
        max-width: 580px;
        margin: 0 auto 2.5rem;
        line-height: 1.7;
    }

    .welcome-details {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
        margin: 2.5rem 0;
    }

    .welcome-detail {
        background: var(--soft-gray);
        border-radius: 14px;
        padding: 1.5rem;
        text-align: center;
    }

    .welcome-detail-icon { font-size: 2rem; display: block; margin-bottom: 0.5rem; }
    .welcome-detail-val { font-size: 22px; font-weight: 800; color: var(--primary-blue); display: block; }
    .welcome-detail-lbl { font-size: 14px; color: var(--text-light); font-weight: 500; }

    /* Question Card */
    .question-card {
        background: white;
        border-radius: 24px;
        border: 2px solid var(--border-light);
        padding: 3.5rem;
        box-shadow: 0 8px 30px rgba(0,0,0,0.06);
    }

    .question-section-tag {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: #EFF6FF;
        color: var(--primary-blue);
        padding: 0.4rem 1.2rem;
        border-radius: 50px;
        font-size: 13px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 1px;
        margin-bottom: 1.5rem;
    }

    .question-text {
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--text-dark);
        line-height: 1.4;
        margin-bottom: 0.5rem;
        font-family: 'Playfair Display', serif;
    }

    .question-sub {
        font-size: 1rem;
        color: var(--text-light);
        margin-bottom: 2.5rem;
        font-style: italic;
    }

    .arabic-display {
        background: linear-gradient(135deg, #F0F4FF, #EFF6FF);
        border: 2px solid #BFDBFE;
        border-radius: 16px;
        padding: 2rem;
        text-align: center;
        margin-bottom: 2.5rem;
        direction: rtl;
    }

    .arabic-text {
        font-size: 3rem;
        font-weight: 700;
        color: var(--primary-blue);
        line-height: 1.5;
        font-family: 'Traditional Arabic', 'Scheherazade New', 'Amiri', serif;
        letter-spacing: 0.1em;
    }

    .arabic-sub {
        font-size: 14px;
        color: var(--text-light);
        margin-top: 0.5rem;
        direction: ltr;
        font-style: italic;
    }

    .options-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .option-btn {
        background: var(--soft-gray);
        border: 2px solid var(--border-light);
        border-radius: 14px;
        padding: 1.2rem 1.5rem;
        font-size: 17px;
        font-weight: 600;
        color: var(--text-dark);
        cursor: pointer;
        text-align: left;
        transition: all 0.25s ease;
        display: flex;
        align-items: center;
        gap: 1rem;
        font-family: 'Inter', sans-serif;
    }

    .option-btn:hover {
        background: #EFF6FF;
        border-color: var(--primary-blue);
        color: var(--primary-blue);
    }

    .option-btn.selected {
        background: #EFF6FF;
        border-color: var(--primary-blue);
        color: var(--primary-blue);
    }

    .option-btn.correct {
        background: #F0FDF4;
        border-color: var(--success-green);
        color: #065F46;
    }

    .option-btn.wrong {
        background: #FEF2F2;
        border-color: #EF4444;
        color: #DC2626;
    }

    .option-btn.correct-reveal {
        background: #F0FDF4;
        border-color: var(--success-green);
        color: #065F46;
    }

    .option-letter {
        width: 34px;
        height: 34px;
        min-width: 34px;
        background: rgba(0,0,0,0.06);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        font-weight: 800;
    }

    .feedback-box {
        margin-top: 1.5rem;
        padding: 1.2rem 1.5rem;
        border-radius: 12px;
        font-size: 16px;
        font-weight: 600;
        display: none;
        align-items: center;
        gap: 0.8rem;
    }

    .feedback-box.correct {
        background: #F0FDF4;
        color: #065F46;
        border: 2px solid #A7F3D0;
        display: flex;
    }

    .feedback-box.wrong {
        background: #FEF2F2;
        color: #991B1B;
        border: 2px solid #FECACA;
        display: flex;
    }

    .nav-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 2rem;
        gap: 1rem;
        flex-wrap: wrap;
    }

    .btn-skip {
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
        background: transparent;
        color: var(--text-light);
        padding: 0.8rem 1.5rem;
        border-radius: 40px;
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        border: 1px solid var(--border-light);
        transition: all 0.2s ease;
        font-family: 'Inter', sans-serif;
    }

    .btn-skip:hover {
        background: var(--soft-gray);
        color: var(--text-dark);
        border-color: var(--text-medium);
    }

    .btn-next {
        display: inline-flex;
        align-items: center;
        gap: 0.6rem;
        background: var(--primary-blue);
        color: white;
        padding: 0.8rem 2rem;
        border-radius: 40px;
        font-size: 16px;
        font-weight: 700;
        cursor: pointer;
        border: none;
        transition: all 0.3s ease;
        opacity: 0.4;
        pointer-events: none;
        font-family: 'Inter', sans-serif;
    }

    .btn-next.active {
        opacity: 1;
        pointer-events: all;
    }

    .btn-next.active:hover {
        background: var(--deep-navy);
        transform: translateY(-2px);
    }

    .btn-start {
        display: inline-flex;
        align-items: center;
        gap: 0.8rem;
        background: var(--accent-gold);
        color: var(--text-dark);
        padding: 1.3rem 3rem;
        border-radius: 14px;
        font-size: 20px;
        font-weight: 800;
        cursor: pointer;
        border: none;
        transition: all 0.3s ease;
        box-shadow: 0 8px 25px rgba(245,158,11,0.4);
        font-family: 'Inter', sans-serif;
    }

    .btn-start:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 35px rgba(245,158,11,0.5);
    }

    .motivation-message {
        margin-top: 1rem;
        background: #FEF3C7;
        border-radius: 12px;
        padding: 1rem;
        text-align: center;
        font-size: 14px;
        font-weight: 600;
        color: #92400E;
        display: none;
    }

    /* Result Screen */
    .result-card {
        background: white;
        border-radius: 24px;
        border: 2px solid var(--border-light);
        overflow: hidden;
        box-shadow: 0 8px 30px rgba(0,0,0,0.06);
    }

    .result-header {
        padding: 3.5rem 3rem 2.5rem;
        text-align: center;
    }

    .result-icon { font-size: 5rem; display: block; margin-bottom: 1.5rem; }

    .result-level-badge {
        display: inline-block;
        padding: 0.6rem 2rem;
        border-radius: 50px;
        font-size: 14px;
        font-weight: 800;
        letter-spacing: 1.5px;
        text-transform: uppercase;
        margin-bottom: 1.5rem;
    }

    .result-card h2 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

    .result-score-row {
        display: flex;
        justify-content: center;
        gap: 3rem;
        margin: 2rem 0;
        flex-wrap: wrap;
    }

    .score-stat {
        text-align: center;
    }

    .score-num {
        font-size: 3rem;
        font-weight: 900;
        line-height: 1;
        margin-bottom: 0.3rem;
    }

    .score-lbl { font-size: 15px; color: var(--text-light); font-weight: 500; }

    .result-divider {
        border: none;
        border-top: 2px solid var(--border-light);
        margin: 0;
    }

    .result-body {
        padding: 3rem;
    }

    .result-description {
        font-size: 18px;
        color: var(--text-medium);
        line-height: 1.7;
        margin-bottom: 2.5rem;
        text-align: center;
    }

    .result-recommendations {
        background: var(--soft-gray);
        border-radius: 16px;
        padding: 2.5rem;
        margin-bottom: 2.5rem;
    }

    .result-recommendations h3 {
        font-size: 22px;
        font-weight: 700;
        color: var(--text-dark);
        margin-bottom: 1.5rem;
    }

    .recommendation-item {
        display: flex;
        align-items: flex-start;
        gap: 1.2rem;
        padding: 1.2rem 0;
        border-bottom: 1px solid var(--border-light);
    }

    .recommendation-item:last-child { border-bottom: none; }

    .rec-icon {
        width: 44px;
        height: 44px;
        min-width: 44px;
        background: var(--primary-blue);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
    }

    .rec-text h4 {
        font-size: 17px;
        font-weight: 700;
        color: var(--text-dark);
        margin-bottom: 0.3rem;
        font-family: 'Playfair Display', serif;
    }

    .rec-text p { font-size: 15px; color: var(--text-medium); }

    /* Capture Form */
    .capture-form {
        background: linear-gradient(135deg, var(--primary-blue), var(--deep-navy));
        border-radius: 20px;
        padding: 3rem;
        color: white;
        text-align: center;
    }

    .capture-form h3 {
        font-size: 26px;
        color: white;
        margin-bottom: 0.8rem;
    }

    .capture-form p {
        font-size: 16px;
        opacity: 0.9;
        margin-bottom: 2rem;
    }

    .form-row {
        display: flex;
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
        margin-bottom: 1.2rem;
    }

    .form-field {
        flex: 1;
        min-width: 200px;
        background: rgba(255,255,255,0.15);
        border: 2px solid rgba(255,255,255,0.25);
        border-radius: 10px;
        padding: 1rem 1.2rem;
        font-size: 16px;
        color: white;
        outline: none;
        transition: all 0.3s ease;
        font-family: 'Inter', sans-serif;
    }

    .form-field::placeholder { opacity: 0.7; }

    .form-field:focus {
        border-color: var(--accent-gold);
        background: rgba(255,255,255,0.2);
    }

    .btn-submit {
        background: var(--accent-gold);
        color: var(--text-dark);
        padding: 1.1rem 2.5rem;
        border-radius: 12px;
        font-size: 18px;
        font-weight: 800;
        border: none;
        cursor: pointer;
        transition: all 0.3s ease;
        font-family: 'Inter', sans-serif;
        box-shadow: 0 6px 20px rgba(245,158,11,0.4);
    }

    .btn-submit:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 30px rgba(245,158,11,0.5);
    }

    .capture-form .privacy-note {
        font-size: 13px;
        opacity: 0.7;
        margin-top: 1rem;
    }

    .result-cta-group {
        display: flex;
        gap: 1.2rem;
        justify-content: center;
        flex-wrap: wrap;
        margin-top: 2rem;
    }

    .cta-primary-result {
        display: inline-flex;
        align-items: center;
        gap: 0.7rem;
        background: var(--accent-gold);
        color: var(--text-dark);
        padding: 1.2rem 2.5rem;
        border-radius: 12px;
        font-size: 18px;
        font-weight: 800;
        text-decoration: none;
        transition: all 0.3s ease;
        box-shadow: 0 6px 20px rgba(245,158,11,0.4);
    }

    .cta-primary-result:hover {
        transform: translateY(-3px);
        box-shadow: 0 10px 30px rgba(245,158,11,0.5);
    }

    .cta-secondary-result {
        display: inline-flex;
        align-items: center;
        gap: 0.7rem;
        background: white;
        color: var(--primary-blue);
        padding: 1.2rem 2.5rem;
        border-radius: 12px;
        font-size: 18px;
        font-weight: 700;
        text-decoration: none;
        border: 2px solid var(--primary-blue);
        transition: all 0.3s ease;
    }

    .cta-secondary-result:hover {
        background: var(--primary-blue);
        color: white;
    }

    /* ===== BOTTOM SECTION ===== */
    .why-test-section {
        padding: 5rem 2rem;
        background: var(--light-bg);
    }

    .why-test-section .container {
        max-width: 1100px;
        margin: 0 auto;
    }

    .why-test-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
        margin-top: 3rem;
    }

    .why-test-card {
        background: white;
        border-radius: 18px;
        padding: 2.5rem;
        text-align: center;
        box-shadow: 0 4px 20px rgba(0,0,0,0.05);
        border: 2px solid transparent;
        transition: all 0.3s ease;
    }

    .why-test-card:hover {
        border-color: var(--primary-blue);
        transform: translateY(-5px);
        box-shadow: 0 12px 35px rgba(30,64,175,0.12);
    }

    .why-test-icon { font-size: 3rem; display: block; margin-bottom: 1.2rem; }

    .why-test-card h3 {
        font-size: 20px;
        font-weight: 700;
        margin-bottom: 0.8rem;
        color: var(--text-dark);
    }

    .why-test-card p {
        font-size: 16px;
        color: var(--text-medium);
        line-height: 1.6;
    }

    /* Responsive */
    @media (max-width: 900px) {
        .levels-row { grid-template-columns: repeat(2, 1fr); }
        .why-test-grid { grid-template-columns: 1fr 1fr; }
        .welcome-details { grid-template-columns: 1fr 1fr 1fr; }
        .test-hero h2 { font-size: 2.4rem; }
    }

    @media (max-width: 640px) {
        .levels-row { grid-template-columns: 1fr 1fr; }
        .why-test-grid { grid-template-columns: 1fr; }
        .options-grid { grid-template-columns: 1fr; }
        .welcome-details { grid-template-columns: 1fr; }
        .question-card, .welcome-card { padding: 2rem 1.5rem; }
        .result-body { padding: 2rem 1.5rem; }
        .capture-form { padding: 2rem 1.5rem; }
        .test-hero h2 { font-size: 2rem; }
        .result-card h2 { font-size: 2rem; }
        .result-score-row { gap: 1.5rem; }
        .progress-wrapper { flex-direction: column; gap: 1rem; text-align: center; }
        .result-cta-group { flex-direction: column; align-items: stretch; }
        .cta-primary-result, .cta-secondary-result { justify-content: center; }
        .form-row { flex-direction: column; }
        .form-field { min-width: unset; }
        .nav-row { flex-direction: column; align-items: stretch; }
        .btn-skip, .btn-next { justify-content: center; }
    }