/* --- Reset & Base --- */
    *, *::before, *::after { box-sizing: border-box; }

    body {
        margin: 0;
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        line-height: 1.7;
        color: #1a1a2e;
        background-color: #ffffff;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    a { color: #e63946; text-decoration: none; transition: color 0.2s; }
    a:hover { color: #c5303c; }

    img { max-width: 100%; height: auto; }

    /* --- Layout --- */
    .container {
        max-width: 1100px;
        margin: 0 auto;
        padding: 0 1.5rem;
    }

    /* --- Header --- */
    header {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        padding: 1rem 1.5rem;
        background: #fff;
        border-bottom: 1px solid #e8e8f0;
        position: sticky;
        top: 0;
        z-index: 100;
    }

    .logo {
        font-size: 1.4rem;
        font-weight: 800;
        letter-spacing: -0.03em;
        color: #1a1a2e;
        text-decoration: none;
    }
    .logo span { color: #e63946; }

    nav { display: flex; align-items: center; gap: 0.25rem; }
    nav a {
        font-weight: 600;
        color: #3a3a52;
        padding: 0.5rem 0.75rem;
        border-radius: 6px;
        transition: background 0.2s, color 0.2s;
    }
    nav a:hover { background: #f7f7fc; color: #e63946; }

    /* --- Hero Section --- */
    .hero {
        padding: 5rem 0 4rem;
        text-align: center;
        background: radial-gradient(ellipse at top center, #fff 0%, #fafaff 100%);
    }

    .hero h1 {
        font-size: clamp(2rem, 5vw, 3.2rem);
        line-height: 1.15;
        margin: 0 0 1rem;
        color: #1a1a2e;
        letter-spacing: -0.025em;
    }

    .hero .subhead {
        font-size: clamp(1.1rem, 2.5vw, 1.35rem);
        color: #e63946;
        font-weight: 700;

    }

    .hero p {
        font-size: 1.15rem;
        max-width: 720px;
        margin: 0 auto 2rem;
        color: #4a4a62;
    }

    .trust-bar {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1.5rem 2.5rem;
        margin-top: 2.5rem;
        padding-top: 2rem;
        border-top: 1px solid #ededf5;
    }
    .trust-item {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 0.95rem;
        color: #5a5a72;
        font-weight: 600;
    }
    .trust-item .icon {
        font-size: 1.25rem;
        line-height: 1;
    }

    /* --- Buttons --- */
    .btn {
        display: inline-block;
        background: #e63946;
        color: #fff;
        font-weight: 700;
        font-size: 1.1rem;
        padding: 1rem 2.5rem;
        border-radius: 8px;
        box-shadow: 0 4px 14px rgba(230, 57, 70, 0.25);
        transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
        cursor: pointer;
        border: none;
    }
    .btn:hover {
        background: #c5303c;
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
        color: #fff;
    }
    .btn:active { transform: translateY(0); }

    .btn-outline {
        background: transparent;
        color: #e63946;
        border: 2px solid #e63946;
        box-shadow: none;
    }
    .btn-outline:hover {
        background: #e63946;
        color: #fff;
        box-shadow: 0 4px 14px rgba(230, 57, 70, 0.25);
    }

    .btn-light {
        background: #fff;
        color: #1a1a2e;
        box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
    }
    .btn-light:hover {
        background: #f0f0f5;
        color: #1a1a2e;
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    }

    .sub-cta {
        font-size: 0.9rem;
        margin-top: 0.75rem;
        color: #888;
    }

    /* --- Sections General --- */
    section { padding: 4.5rem 0; }
    section.bg-alt {
        background-color: #f9f9ff;
        border-top: 1px solid #ededf5;
        border-bottom: 1px solid #ededf5;
    }

    .section-label {
        display: inline-block;
        font-size: 0.8rem;
        font-weight: 800;
        text-transform: uppercase;
        letter-spacing: 0.1em;
        color: #e63946;
        margin-bottom: 0.5rem;
    }

    h2 {
        font-size: clamp(1.6rem, 3.5vw, 2.2rem);
        margin: 0 0 0.75rem;
        color: #1a1a2e;
        letter-spacing: -0.015em;
        text-align: center;
        line-height: 1.25;
    }

    .section-subtitle {
        text-align: center;
        max-width: 680px;
        margin: 0 auto 2.5rem;
        color: #5a5a72;
        font-size: 1.1rem;
    }

    h3 { font-size: 1.15rem; margin: 1.25rem 0 0.4rem; color: #1a1a2e; }
    p { margin-bottom: 1rem; color: #3a3a52; }

    /* --- Process Steps --- */
    .process-steps {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1.25rem;
        margin-top: 2rem;
        counter-reset: steps;
    }
    @media (min-width: 768px) {
        .process-steps { grid-template-columns: repeat(4, 1fr); }
    }

    .step-card {
        background: #fff;
        padding: 1.75rem 1.5rem;
        border-radius: 12px;
        border: 1px solid #e8e8f0;
        box-shadow: 0 2px 8px rgba(0,0,0,0.03);
        position: relative;
        counter-increment: steps;
        transition: box-shadow 0.2s, transform 0.2s;
    }
    .step-card:hover {
        box-shadow: 0 4px 16px rgba(0,0,0,0.07);
        transform: translateY(-2px);
    }
    .step-number {
        font-size: 0.8rem;
        font-weight: 800;
        color: #e63946;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        margin-bottom: 0.75rem;
        display: block;
    }
    .step-card strong { display: block; margin-bottom: 0.4rem; font-size: 1.1rem; color: #1a1a2e; }
    .step-card p { font-size: 0.95rem; margin-bottom: 0; color: #5a5a72; }

    /* --- Problem Section --- */
    .problem-section {
        display: grid;
        grid-template-columns: 1fr;
        gap: 2rem;
        align-items: start;
    }
    @media (min-width: 768px) {
        .problem-section { grid-template-columns: 1fr 1fr; gap: 3rem; }
    }
    .problem-text h2 { text-align: left; }
    .problem-text .section-subtitle { text-align: left; margin: 0 0 1.5rem; }

    .problem-types {
        list-style: none;
        padding: 0;
        margin: 0 0 1.5rem;
    }
    .problem-types li {
        padding: 0.6rem 0;
        display: flex;
        align-items: baseline;
        gap: 0.75rem;
        color: #3a3a52;
        font-size: 1.05rem;
    }
    .problem-types li .check {
        color: #e63946;
        font-weight: 700;
        flex-shrink: 0;
    }


    /* --- Comparison Section --- */
    .comparison-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1.25rem;
        max-width: 900px;
        margin: 0 auto;
    }
    @media (min-width: 640px) {
        .comparison-grid { grid-template-columns: 1fr 1fr; }
    }

    .comparison-card {
        padding: 1.75rem;
        border-radius: 12px;
        border: 1px solid #e8e8f0;
    }
    .comparison-card.old {
        background: #fafafa;
    }
    .comparison-card.new {
        background: #fff;
        border-color: #e63946;
        box-shadow: 0 2px 12px rgba(230, 57, 70, 0.08);
    }
    .comparison-card h3 {
        margin-top: 0;
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }
    .comparison-card.old h3 { color: #888; }
    .comparison-card.new h3 { color: #e63946; }

    .comparison-card ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .comparison-card ul li {
        padding: 0.4rem 0;
        display: flex;
        align-items: baseline;
        gap: 0.6rem;
        font-size: 0.95rem;
        color: #3a3a52;
    }
    .comparison-card.old ul li::before {
        content: "✗";
        color: #c0392b;
        font-weight: 700;
        flex-shrink: 0;
    }
    .comparison-card.new ul li::before {
        content: "✓";
        color: #27ae60;
        font-weight: 700;
        flex-shrink: 0;
    }

    /* --- Benefits Grid --- */
    .benefits-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 2rem;
    }
    @media (min-width: 640px) {
        .benefits-grid { grid-template-columns: 1fr 1fr; }
    }

    .benefit-item {
        display: flex;
        align-items: flex-start;
        gap: 1rem;
        padding: 1.5rem;
        background: #fff;
        border-radius: 12px;
        border: 1px solid #e8e8f0;
        box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        transition: box-shadow 0.2s, transform 0.2s;
    }
    .benefit-item:hover {
        box-shadow: 0 4px 16px rgba(0,0,0,0.06);
        transform: translateY(-2px);
    }
    .benefit-icon {
        font-size: 1.4rem;
        background: #fff0f1;
        color: #e63946;
        width: 44px;
        height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        flex-shrink: 0;
        font-weight: 700;
    }
    .benefit-text strong { display: block; color: #1a1a2e; margin-bottom: 0.3rem; font-size: 1.05rem; }
    .benefit-text p { margin-bottom: 0; font-size: 0.95rem; color: #5a5a72; }

    /* --- Exam Coverage --- */
    .exam-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1.25rem;
        margin-top: 2rem;
    }
    @media (min-width: 768px) {
        .exam-grid { grid-template-columns: repeat(3, 1fr); }
    }
    .exam-card {
        background: #fff;
        border-radius: 12px;
        border: 1px solid #e8e8f0;
        padding: 2rem 1.5rem;
        text-align: center;
        box-shadow: 0 2px 8px rgba(0,0,0,0.03);
        transition: box-shadow 0.2s, transform 0.2s;
    }
    .exam-card:hover {
        box-shadow: 0 4px 16px rgba(0,0,0,0.07);
        transform: translateY(-2px);
    }
    .exam-card .exam-icon {
        font-size: 2.5rem;
        margin-bottom: 0.75rem;
        display: block;
    }
    .exam-card h3 {
        margin-top: 0;
        font-size: 1.2rem;
    }
    .exam-card .exam-full { color: #888; font-size: 0.9rem; margin-bottom: 0.75rem; }
    .exam-card p { font-size: 0.95rem; color: #5a5a72; margin-bottom: 0; }

    /* --- FAQ --- */
    .faq-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-top: 2rem;
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
    }
    .faq-item {
        background: #fff;
        border: 1px solid #e8e8f0;
        border-radius: 10px;
        overflow: hidden;
    }
    .faq-item summary {
        padding: 1.25rem 1.5rem;
        font-weight: 700;
        font-size: 1.05rem;
        color: #1a1a2e;
        cursor: pointer;
        list-style: none;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        transition: background 0.2s;
        background: #fafaff;
    }
    .faq-item summary::-webkit-details-marker { display: none; }

    .faq-answer {
        padding: 0 1.5rem 1.25rem;
        font-size: 0.98rem;
        color: #5a5a72;
        line-height: 1.7;
    }
    .faq-answer p { margin-bottom: 0; color: #5a5a72; }

    /* --- Final CTA --- */
    .final-cta {
        text-align: center;
        padding: 5rem 0;
        background: linear-gradient(135deg, #1a1a2e 0%, #2d2d4a 100%);
        color: #fff;
    }
    .final-cta h2 { color: #fff; margin-bottom: 1rem; }
    .final-cta p { color: #b0b0cc; max-width: 600px; margin: 0 auto 2rem; font-size: 1.1rem; }

    /* --- Footer --- */
    footer {
        text-align: center;
        padding: 2.5rem 1.5rem;
        color: #888;
        font-size: 0.85rem;
        border-top: 1px solid #e8e8f0;
    }
    footer p { color: #888; }
    footer a { color: #888; }
    footer a:hover { color: #e63946; }
    footer .footer-links {
        display: flex;
        justify-content: center;
        gap: 1.5rem;
        margin-top: 0.5rem;
    }

    /* --- Utilities --- */
    .text-center { text-align: center; }
    .mt-2 { margin-top: 2rem; }
    .mb-0 { margin-bottom: 0; }

    /* --- Mobile tweaks --- */
    @media (max-width: 480px) {
        header { padding: 0.75rem 1rem; }
        .logo { font-size: 1.2rem; }
        nav a { padding: 0.4rem 0.5rem; font-size: 0.9rem; }
        .hero { padding: 3rem 0 2.5rem; }
        .btn { padding: 0.9rem 2rem; font-size: 1rem; }
        section { padding: 3rem 0; }
    }