.page-ththao {
    background-color: #F4F7FB;
    color: #1F2D3D;
    font-family: Arial, sans-serif;
}

.page-ththao__hero-section {
    position: relative;
    padding-top: 10px; /* Small top padding as per rules */
    background-color: #2F6BFF;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden; /* Ensure image doesn't overflow */
}

.page-ththao__hero-image-wrapper {
    width: 100%;
    max-height: 675px;
    overflow: hidden;
}

.page-ththao__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.page-ththao__hero-content {
    text-align: center;
    padding: 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
    color: #FFFFFF;
}

.page-ththao__main-title {
    font-weight: bold;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-ththao__description {
    font-size: 1.1em;
    margin-bottom: 30px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.page-ththao__cta-button {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
    color: #FFFFFF;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: background-color 0.3s ease;
    border: none;
    cursor: pointer;
}

.page-ththao__cta-button:hover {
    background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
}

.page-ththao__cta-button--secondary {
    background: linear-gradient(180deg, #6FA3FF 0%, #2F6BFF 100%);
}

.page-ththao__cta-button--secondary:hover {
    background: linear-gradient(180deg, #2F6BFF 0%, #6FA3FF 100%);
}

.page-ththao__features-section,
.page-ththao__guide-section,
.page-ththao__info-section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-ththao__section-title {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 40px;
    color: #1F2D3D;
}

.page-ththao__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-ththao__feature-card {
    background-color: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #D6E2FF;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-ththao__feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-ththao__feature-icon {
    width: 100%; /* Occupy major visual area */
    height: auto;
    max-width: 400px; /* Max width for image within card */
    border-radius: 8px;
    margin-bottom: 20px;
    object-fit: cover;
}

.page-ththao__card-title {
    font-size: 1.5em;
    color: #000000;
    margin-bottom: 10px;
}

.page-ththao__card-text {
    font-size: 1em;
    color: #1F2D3D;
    line-height: 1.6;
}

.page-ththao__cta-bottom {
    text-align: center;
    margin-top: 40px;
}

.page-ththao__guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-ththao__step-card {
    background-color: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    padding: 30px;
    text-align: center;
    border: 1px solid #D6E2FF;
}

.page-ththao__step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #6FA3FF; /* Using accent color for steps */
    color: #FFFFFF;
    font-size: 2em;
    font-weight: bold;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-ththao__step-title {
    font-size: 1.4em;
    color: #000000;
    margin-bottom: 10px;
}

.page-ththao__step-description {
    font-size: 0.95em;
    color: #1F2D3D;
    line-height: 1.6;
}

.page-ththao__cta-guide {
    text-align: center;
    margin-top: 40px;
}

.page-ththao__info-text {
    font-size: 1.1em;
    line-height: 1.7;
    color: #1F2D3D;
    margin-bottom: 20px;
    text-align: center;
}

.page-ththao__info-list {
    list-style: none;
    padding: 0;
    margin: 0 auto 30px auto;
    max-width: 800px;
    text-align: left;
}

.page-ththao__list-item {
    background-color: #FFFFFF;
    border: 1px solid #D6E2FF;
    border-radius: 8px;
    padding: 15px 20px;
    margin-bottom: 10px;
    font-size: 1em;
    color: #1F2D3D;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    display: flex;
    align-items: center;
}

.page-ththao__list-item::before {
    content: '✅';
    margin-right: 10px;
    font-size: 1.2em;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .page-ththao__hero-content {
        padding: 30px 15px;
    }

    .page-ththao__main-title {
        font-size: 2.5em;
    }

    .page-ththao__section-title {
        font-size: 2em;
    }
}

@media (max-width: 768px) {
    .page-ththao__hero-section {
        padding-top: 8px;
    }

    .page-ththao__main-title {
        font-size: clamp(1.8em, 6vw, 2.2em);
    }

    .page-ththao__description {
        font-size: 1em;
    }

    .page-ththao__section-title {
        font-size: 1.8em;
    }

    .page-ththao__features-section,
    .page-ththao__guide-section,
    .page-ththao__info-section {
        padding: 40px 15px;
    }

    .page-ththao__features-grid,
    .page-ththao__guide-steps {
        grid-template-columns: 1fr;
    }

    .page-ththao__feature-card,
    .page-ththao__step-card {
        padding: 25px;
    }

    /* Critical: Mobile image overflow prevention */
    .page-ththao img {
        max-width: 100%;
        height: auto;
    }
}

@media (max-width: 480px) {
    .page-ththao__main-title {
        font-size: clamp(1.5em, 7vw, 2em);
    }

    .page-ththao__cta-button {
        padding: 12px 25px;
        font-size: 1em;
    }

    .page-ththao__section-title {
        font-size: 1.5em;
    }

    .page-ththao__card-title,
    .page-ththao__step-title {
        font-size: 1.2em;
    }

    .page-ththao__feature-icon {
        min-width: 200px;
        min-height: 200px;
    }
}

/* Ensure content area images are never smaller than 200px */
.page-ththao__feature-icon,
.page-ththao__hero-image {
    min-width: 200px;
    min-height: 200px;
}