.page-ththao {
    background-color: var(--background-color, #08160F); /* Default to dark green if shared var not found */
    color: var(--text-main-color, #F2FFF6); /* Main text color for dark background */
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
}

.page-ththao__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 10px; /* Small top padding, body handles header offset */
    background-color: #08160F; /* Ensure background color */
    color: #F2FFF6;
    text-align: center;
}

.page-ththao__hero-image-wrapper {
    width: 100%;
    max-height: 500px; /* Limit height for hero image */
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.page-ththao__hero-content {
    max-width: 900px;
    padding: 40px 20px 60px;
    z-index: 1;
}

.page-ththao__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: bold;
    color: #F2FFF6; /* Text Main */
    margin-bottom: 20px;
    letter-spacing: 1px;
    line-height: 1.2;
}

.page-ththao__subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: #A7D9B8; /* Text Secondary */
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-ththao__cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-top: 30px;
}

.page-ththao__btn-primary,
.page-ththao__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-ththao__btn-primary {
    background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    color: #F2FFF6; /* Text Main */
    border: none;
    box-shadow: 0 4px 15px rgba(34, 199, 104, 0.4);
}

.page-ththao__btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
}

.page-ththao__btn-secondary {
    background-color: transparent;
    color: #2AD16F; /* A lighter shade of primary for contrast */
    border: 2px solid #2AD16F;
}

.page-ththao__btn-secondary:hover {
    background-color: #2AD16F;
    color: #F2FFF6;
}

.page-ththao__btn-large {
    padding: 18px 40px;
    font-size: 1.2rem;
}

.page-ththao__section {
    padding: 80px 0;
    background-color: #08160F; /* Background */
    color: #F2FFF6; /* Text Main */
    text-align: center;
}

.page-ththao__container {
    width: 100%; /* Ensure width is 100% for flex child */
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-ththao__section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    color: #F2FFF6; /* Text Main */
    margin-bottom: 40px;
    font-weight: bold;
}

.page-ththao__text-content {
    font-size: 1.1rem;
    color: #A7D9B8; /* Text Secondary */
    margin-bottom: 20px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-ththao__grid-cards,
.page-ththao__promo-grid,
.page-ththao__feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
    margin-bottom: 40px;
}

.page-ththao__card {
    background-color: #11271B; /* Card BG */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    text-align: left;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-ththao__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
}

.page-ththao__card-image {
    width: 100%;
    height: 200px; /* Fixed height for card images */
    object-fit: cover;
    display: block;
}

.page-ththao__card-title {
    font-size: 1.4rem;
    color: #F2FFF6; /* Text Main */
    padding: 20px 20px 10px;
    font-weight: bold;
}

.page-ththao__card-description {
    font-size: 1rem;
    color: #A7D9B8; /* Text Secondary */
    padding: 0 20px 20px;
    flex-grow: 1;
}

.page-ththao__card-link {
    display: inline-block;
    color: #2AD16F;
    text-decoration: none;
    font-weight: bold;
    padding: 0 20px 20px;
    transition: color 0.3s ease;
}

.page-ththao__card-link:hover {
    color: #57E38D; /* Glow */
}

.page-ththao__feature-item {
    background-color: #11271B; /* Card BG */
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-ththao__feature-icon {
    width: 100px;
    height: 100px;
    object-fit: contain;
    margin-bottom: 20px;
}

.page-ththao__feature-title {
    font-size: 1.5rem;
    color: #F2FFF6; /* Text Main */
    margin-bottom: 10px;
    font-weight: bold;
}

.page-ththao__feature-description {
    font-size: 1rem;
    color: #A7D9B8; /* Text Secondary */
}

.page-ththao__cta-center {
    margin-top: 50px;
}

.page-ththao__step-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    text-align: left;
}

.page-ththao__step-item {
    background-color: #11271B; /* Card BG */
    border-left: 5px solid #2AD16F;
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-ththao__step-title {
    font-size: 1.3rem;
    color: #F2FFF6; /* Text Main */
    margin-bottom: 10px;
    font-weight: bold;
}

.page-ththao__step-description {
    font-size: 1rem;
    color: #A7D9B8; /* Text Secondary */
}

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

.page-ththao__security-item {
    background-color: #11271B; /* Card BG */
    border-radius: 8px;
    padding: 15px 20px;
    margin-bottom: 10px;
    color: #F2FFF6; /* Text Main */
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.page-ththao__security-item::before {
    content: '\2705'; /* Checkmark icon */
    color: #2AD16F;
    font-size: 1.2em;
}

.page-ththao__faq-list {
    margin-top: 40px;
    text-align: left;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-ththao__faq-item {
    background-color: #11271B; /* Card BG */
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-ththao__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    font-size: 1.2rem;
    font-weight: bold;
    color: #F2FFF6; /* Text Main */
    cursor: pointer;
    background-color: #1E3A2A; /* Divider for summary background */
    border-radius: 8px;
    user-select: none;
    list-style: none; /* For details/summary */
    transition: background-color 0.3s ease;
}

.page-ththao__faq-question:hover {
    background-color: #2E7A4E; /* Border color for hover */
}

.page-ththao__faq-question::-webkit-details-marker {
    display: none;
}

.page-ththao__faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    color: #2AD16F;
}

.page-ththao__faq-answer {
    padding: 0 20px;
    font-size: 1rem;
    color: #A7D9B8; /* Text Secondary */
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-ththao__faq-item[open] .page-ththao__faq-answer {
    max-height: 500px; /* Adjust as needed */
    padding: 10px 20px 20px;
}

.page-ththao__cta-content {
    padding: 60px 20px;
    background-color: #11271B; /* Card BG */
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .page-ththao__main-title {
        font-size: clamp(2rem, 4vw, 3rem);
    }
    .page-ththao__section-title {
        font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    }
}

@media (max-width: 768px) {
    .page-ththao__hero-content {
        padding: 30px 15px 40px;
    }
    .page-ththao__main-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
        margin-bottom: 15px;
    }
    .page-ththao__subtitle {
        font-size: clamp(0.9rem, 3vw, 1.1rem);
        margin-bottom: 20px;
    }
    .page-ththao__cta-buttons {
        flex-direction: column;
        gap: 15px;
        width: 100%;
        padding: 0 15px;
        box-sizing: border-box;
    }
    .page-ththao__btn-primary,
    .page-ththao__btn-secondary {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 20px;
        font-size: 1rem;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-ththao__section {
        padding: 50px 0;
    }
    .page-ththao__container {
        padding: 0 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-ththao__section-title {
        font-size: clamp(1.5rem, 5vw, 2rem);
        margin-bottom: 30px;
    }
    .page-ththao__text-content {
        font-size: 1rem;
    }
    .page-ththao__grid-cards,
    .page-ththao__promo-grid,
    .page-ththao__feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-ththao__card-image {
        height: 180px;
    }
    .page-ththao__card-title {
        font-size: 1.2rem;
    }
    .page-ththao__feature-icon {
        width: 80px;
        height: 80px;
    }
    .page-ththao__feature-title {
        font-size: 1.3rem;
    }
    .page-ththao__step-item,
    .page-ththao__security-item {
        padding: 15px;
    }
    .page-ththao__step-title {
        font-size: 1.1rem;
    }
    .page-ththao__faq-question {
        padding: 15px;
        font-size: 1.1rem;
    }
    .page-ththao__faq-answer {
        padding: 0 15px 15px;
    }
    .page-ththao img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-ththao__section,
    .page-ththao__card,
    .page-ththao__container,
    .page-ththao__hero-section,
    .page-ththao__hero-content,
    .page-ththao__cta-content {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-ththao__hero-section {
        padding-top: 10px !important;
    }
}