/* Biến màu sắc */
:root {
    --na99-primary: #FF8C1A;
    --na99-secondary: #FFA53A;
    --na99-card-bg: #17191F;
    --na99-bg: #0D0E12;
    --na99-text-main: #FFF3E6;
    --na99-border: #A84F0C;
    --na99-glow: #FFB04D;
    --na99-deep-orange: #D96800;
}

.page-tin-tuc {
    font-family: 'Arial', sans-serif;
    color: var(--na99-text-main); /* Mặc định chữ sáng trên nền tối */
    background-color: var(--na99-bg);
}

.page-tin-tuc__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 15px;
}

/* HERO Section */
.page-tin-tuc__hero-section {
    position: relative;
    padding-top: 10px; /* Chỉ 10px top padding, body đã có --header-offset */
    color: var(--na99-text-main);
    text-align: center;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.page-tin-tuc__hero-image-wrapper {
    width: 100%;
    max-height: 600px;
    overflow: hidden;
}

.page-tin-tuc__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    object-position: center;
}

.page-tin-tuc__hero-content {
    position: relative;
    z-index: 1;
    padding: 40px 15px;
    max-width: 800px;
    margin-top: -100px; /* Kéo nội dung lên trên ảnh một chút */
    background: rgba(13, 14, 18, 0.7); /* Nền mờ để chữ nổi bật */
    border-radius: 10px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.page-tin-tuc__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--na99-glow);
}

.page-tin-tuc__intro-text {
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 1.6;
    margin-bottom: 30px;
    color: var(--na99-text-main);
}

.page-tin-tuc__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* General Section Styles */
.page-tin-tuc__section {
    padding: 60px 0;
    background-color: var(--na99-bg);
}

.page-tin-tuc__section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--na99-secondary);
}

.page-tin-tuc__section-description {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px auto;
    line-height: 1.6;
    color: var(--na99-text-main);
}

.page-tin-tuc__dark-section {
    background-color: var(--na99-card-bg);
}

.page-tin-tuc__dark-section .page-tin-tuc__section-title,
.page-tin-tuc__dark-section .page-tin-tuc__section-description {
    color: var(--na99-text-main);
}

/* News Grid & Card Styles */
.page-tin-tuc__news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-tin-tuc__news-card {
    background-color: var(--na99-card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.page-tin-tuc__news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-tin-tuc__card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.page-tin-tuc__card-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.page-tin-tuc__card-date {
    font-size: 0.9em;
    color: var(--na99-secondary);
    margin-bottom: 10px;
    display: block;
}

.page-tin-tuc__card-title {
    font-size: 1.3em;
    font-weight: 600;
    margin-bottom: 15px;
    line-height: 1.4;
    flex-grow: 1;
}

.page-tin-tuc__card-title a {
    color: var(--na99-text-main);
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-tin-tuc__card-title a:hover {
    color: var(--na99-primary);
}

.page-tin-tuc__card-excerpt {
    font-size: 0.95em;
    color: #CCC;
    line-height: 1.5;
    margin-bottom: 20px;
}

.page-tin-tuc__card-link {
    display: inline-block;
    background: linear-gradient(180deg, var(--na99-secondary) 0%, var(--na99-deep-orange) 100%);
    color: #fff;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.3s ease;
    align-self: flex-start;
}

.page-tin-tuc__card-link:hover {
    opacity: 0.9;
}

.page-tin-tuc__view-all-button-wrapper {
    text-align: center;
    margin-top: 50px;
}

/* Buttons */
.page-tin-tuc__btn-primary,
.page-tin-tuc__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    white-space: nowrap;
    cursor: pointer;
    font-size: 1.1em;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-tin-tuc__btn-primary {
    background: linear-gradient(180deg, var(--na99-secondary) 0%, var(--na99-deep-orange) 100%);
    color: #fff;
    border: none;
    box-shadow: 0 4px 15px rgba(255, 165, 58, 0.4);
}

.page-tin-tuc__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 165, 58, 0.6);
}

.page-tin-tuc__btn-secondary {
    background: transparent;
    color: var(--na99-primary);
    border: 2px solid var(--na99-primary);
    box-shadow: 0 4px 10px rgba(255, 140, 26, 0.2);
}

.page-tin-tuc__btn-secondary:hover {
    transform: translateY(-3px);
    background: var(--na99-primary);
    color: #fff;
    box-shadow: 0 6px 15px rgba(255, 140, 26, 0.4);
}

.page-tin-tuc__btn-large {
    padding: 18px 40px;
    font-size: 1.2em;
}

/* FAQ Section */
details.page-tin-tuc__faq-item {
    margin-bottom: 15px;
    border-radius: 10px;
    border: 1px solid var(--na99-border);
    overflow: hidden;
    background: var(--na99-card-bg);
}

details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    cursor: pointer;
    user-select: none;
    list-style: none;
    transition: background-color 0.3s ease;
}

details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question::-webkit-details-marker {
    display: none;
}

details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question:hover {
    background: rgba(var(--na99-primary), 0.1);
}

.page-tin-tuc__faq-qtext {
    flex: 1;
    font-size: 1.1em;
    font-weight: 600;
    line-height: 1.5;
    text-align: left;
    color: var(--na99-text-main);
}

.page-tin-tuc__faq-toggle {
    font-size: 24px;
    font-weight: bold;
    color: var(--na99-secondary);
    flex-shrink: 0;
    margin-left: 15px;
    width: 28px;
    text-align: center;
    transition: transform 0.3s ease;
}

details.page-tin-tuc__faq-item[open] .page-tin-tuc__faq-toggle {
    transform: rotate(45deg);
}

details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer {
    padding: 0 20px 20px;
    background: rgba(var(--na99-primary), 0.05);
    border-radius: 0 0 10px 10px;
    color: #CCC;
}

.page-tin-tuc__faq-answer p {
    margin: 0;
    line-height: 1.6;
}

.page-tin-tuc__faq-answer a {
    color: var(--na99-glow);
    text-decoration: underline;
}

/* Bottom CTA */
.page-tin-tuc__cta-bottom {
    padding: 80px 0;
    text-align: center;
    background-color: var(--na99-card-bg);
}

.page-tin-tuc__cta-container {
    max-width: 900px;
}

.page-tin-tuc__cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--na99-glow);
    margin-bottom: 20px;
    line-height: 1.3;
}

.page-tin-tuc__cta-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--na99-text-main);
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-tin-tuc__hero-content {
        margin-top: -80px;
        padding: 30px 15px;
    }
    .page-tin-tuc__news-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 25px;
    }
    .page-tin-tuc__card-image {
        height: 200px;
    }
    .page-tin-tuc__section {
        padding: 50px 0;
    }
    .page-tin-tuc__btn-primary, .page-tin-tuc__btn-secondary {
        padding: 12px 25px;
        font-size: 1em;
    }
    .page-tin-tuc__faq-item summary.page-tin-tuc__faq-question {
        padding: 15px 18px;
    }
    .page-tin-tuc__faq-qtext {
        font-size: 1em;
    }
}

@media (max-width: 849px) {
    .page-tin-tuc__hero-image {
        object-fit: contain !important;
        aspect-ratio: unset !important;
    }
}

@media (max-width: 768px) {
    .page-tin-tuc__hero-section {
        padding-top: 10px; /* Vẫn giữ 10px cho mobile */
    }
    .page-tin-tuc__hero-content {
        margin-top: -60px;
        padding: 25px 15px;
        width: calc(100% - 30px);
        box-sizing: border-box;
    }
    .page-tin-tuc__main-title {
        font-size: clamp(2rem, 8vw, 2.8rem);
    }
    .page-tin-tuc__intro-text {
        font-size: clamp(0.95rem, 3vw, 1.15rem);
    }
    .page-tin-tuc__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    .page-tin-tuc__btn-primary, .page-tin-tuc__btn-secondary {
        width: 100% !important;
        max-width: 100% !important;
        padding-left: 15px;
        padding-right: 15px;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-tin-tuc__section {
        padding: 40px 0;
    }
    .page-tin-tuc__section-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
        margin-bottom: 15px;
    }
    .page-tin-tuc__section-description {
        font-size: clamp(0.9rem, 3.5vw, 1.1rem);
        margin-bottom: 30px;
        padding: 0 15px;
    }
    .page-tin-tuc__news-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    .page-tin-tuc__card-image {
        height: 180px;
    }
    .page-tin-tuc__card-title {
        font-size: 1.15em;
    }
    .page-tin-tuc__card-excerpt {
        font-size: 0.9em;
    }
    .page-tin-tuc__view-all-button-wrapper {
        margin-top: 40px;
        padding: 0 15px;
    }
    .page-tin-tuc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block;
    }
    .page-tin-tuc__container,
    .page-tin-tuc__news-card,
    .page-tin-tuc__faq-item,
    .page-tin-tuc__cta-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question {
        padding: 15px;
    }
    .page-tin-tuc__faq-qtext {
        font-size: 15px;
    }
    .page-tin-tuc__faq-toggle {
        font-size: 20px;
        width: 24px;
        margin-left: 10px;
    }
    details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer {
        padding: 0 15px 15px;
    }
    .page-tin-tuc__cta-bottom {
        padding: 50px 0;
    }
    .page-tin-tuc__cta-title {
        font-size: clamp(1.8rem, 7vw, 2.5rem);
    }
    .page-tin-tuc__cta-description {
        font-size: clamp(0.95rem, 3.5vw, 1.15rem);
        margin-bottom: 30px;
    }
}