/* style/contact.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này KHÔNG viết lại padding-top cho body hoặc main */

:root {
    --primary-color: #26A9E0;
    --secondary-color: #FFFFFF;
    --text-dark: #333333;
    --text-light: #ffffff;
    --bg-dark: #0a0a0a;
    --login-button-color: #EA7C07;
    --border-color: rgba(255, 255, 255, 0.15);
}

.page-contact {
    color: var(--text-light); /* Body background is dark, so text is light */
    background-color: var(--bg-dark);
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

.page-contact__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
}

.page-contact__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
    padding-top: 10px; /* Small top padding, header offset handled by body */
    background-color: var(--primary-color);
    overflow: hidden;
}

.page-contact__hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.page-contact__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.2; /* Make image subtle background */
    display: block;
}

.page-contact__hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    color: var(--text-light);
    background-color: rgba(0, 0, 0, 0.5); /* Semi-transparent overlay for text readability */
    padding: 30px;
    border-radius: 8px;
}

.page-contact__main-title {
    font-size: clamp(2em, 3.5vw, 3em);
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--secondary-color);
    line-height: 1.2;
}

.page-contact__hero-description {
    font-size: 1.1em;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.page-contact__section-title {
    font-size: clamp(1.8em, 3vw, 2.5em);
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.page-contact__section-description {
    font-size: 1.05em;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 40px auto;
    color: var(--text-light);
}

.page-contact__dark-section {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 60px 0;
}

.page-contact__light-bg {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 60px 0;
}

/* Contact Channels Section */
.page-contact__contact-channels {
    padding: 60px 0;
    background-color: var(--bg-dark);
}

.page-contact__channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.page-contact__channel-card {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-contact__channel-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-contact__channel-icon {
    width: 100px;
    height: 100px;
    margin-bottom: 20px;
    object-fit: contain;
    filter: brightness(1.2); /* Slightly brighten icons for visibility on dark background */
    min-width: 200px;
    min-height: 200px;
}

.page-contact__card-title {
    font-size: 1.5em;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.page-contact__card-text {
    font-size: 1em;
    color: var(--text-light);
    margin-bottom: 25px;
}

.page-contact__email-link, .page-contact__phone-link {
    color: var(--primary-color);
    text-decoration: underline;
    transition: color 0.3s ease;
}

.page-contact__email-link:hover, .page-contact__phone-link:hover {
    color: var(--secondary-color);
}

/* Buttons */
.page-contact__btn-primary,
.page-contact__btn-secondary {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
    box-sizing: border-box;
}

.page-contact__btn-primary {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    border: 2px solid var(--primary-color);
}

.page-contact__btn-primary:hover {
    background-color: darken(var(--primary-color), 10%);
    border-color: darken(var(--primary-color), 10%);
}

.page-contact__btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.page-contact__btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--secondary-color);
}

/* FAQ Section */
.page-contact__faq-section {
    padding: 60px 0;
    background-color: var(--bg-dark);
}

.page-contact__faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.page-contact__faq-item {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: background-color 0.3s ease;
}

.page-contact__faq-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.page-contact__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    font-size: 1.15em;
    font-weight: 600;
    color: var(--secondary-color);
    list-style: none; /* For details/summary */
}

.page-contact__faq-question::-webkit-details-marker {
    display: none; /* For details/summary */
}

.page-contact__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 15px;
    color: var(--primary-color);
}

.page-contact__faq-answer {
    padding: 0 25px 20px 25px;
    font-size: 1em;
    color: var(--text-light);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-out, padding 0.5s ease-out;
}

.page-contact__faq-item.active .page-contact__faq-answer {
    max-height: 500px; /* Adjust as needed */
    padding-top: 10px;
}

.page-contact__faq-item p {
    margin-bottom: 15px;
}

.page-contact__faq-item a {
    margin-top: 10px;
}

/* For <details> tag, native open state handles visibility */
details.page-contact__faq-item[open] .page-contact__faq-answer {
    max-height: none; /* Let content dictate height */
    padding-top: 10px;
}


/* Location & Feedback Section */
.page-contact__location-feedback {
    padding: 60px 0;
    background-color: var(--bg-dark);
}

.page-contact__grid-half {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: flex-start;
}

.page-contact__location-info {
    color: var(--text-light);
}

.page-contact__address-block p {
    margin-bottom: 10px;
    font-size: 1em;
}

.page-contact__location-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-top: 25px;
    display: block;
    object-fit: cover;
    min-width: 200px;
    min-height: 200px;
}

.page-contact__feedback-form {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-contact__form-title {
    font-size: 1.8em;
    color: var(--secondary-color);
    margin-bottom: 15px;
    text-align: center;
}

.page-contact__form-description {
    font-size: 1em;
    color: var(--text-light);
    margin-bottom: 30px;
    text-align: center;
}

.page-contact__form-group {
    margin-bottom: 20px;
}

.page-contact__form-label {
    display: block;
    font-size: 1em;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.page-contact__form-input,
.page-contact__form-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    font-size: 1em;
    box-sizing: border-box;
}

.page-contact__form-input::placeholder,
.page-contact__form-textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.page-contact__form-input:focus,
.page-contact__form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(38, 169, 224, 0.5);
}

.page-contact__form-textarea {
    resize: vertical;
}

.page-contact__submit-btn {
    width: 100%;
    padding: 15px;
    font-size: 1.1em;
    font-weight: 700;
    cursor: pointer;
    border: none;
    background-color: var(--login-button-color);
    color: var(--secondary-color);
    transition: background-color 0.3s ease;
}

.page-contact__submit-btn:hover {
    background-color: darken(var(--login-button-color), 10%);
}

/* CTA Section */
.page-contact__cta-section {
    padding: 60px 0;
    text-align: center;
    background-color: var(--primary-color);
    color: var(--text-light);
}

.page-contact__cta-title {
    font-size: clamp(2em, 3.5vw, 2.8em);
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.page-contact__cta-description {
    font-size: 1.1em;
    max-width: 800px;
    margin: 0 auto 30px auto;
    color: var(--secondary-color);
}

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

/* General text color for default elements */
.page-contact p, .page-contact li {
    color: var(--text-light);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-contact__grid-half {
        grid-template-columns: 1fr;
    }
    .page-contact__location-image {
        margin-top: 40px;
    }
}

@media (max-width: 768px) {
    .page-contact__container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-contact__hero-section,
    .page-contact__contact-channels,
    .page-contact__faq-section,
    .page-contact__location-feedback,
    .page-contact__cta-section {
        padding: 40px 0 !important;
    }

    .page-contact__hero-content {
        padding: 20px;
    }

    .page-contact__main-title {
        font-size: 2em !important;
    }

    .page-contact__hero-description {
        font-size: 0.95em !important;
    }

    .page-contact__section-title {
        font-size: 1.8em !important;
    }

    .page-contact__section-description {
        font-size: 0.9em !important;
        margin-bottom: 30px !important;
    }

    .page-contact__channels-grid {
        grid-template-columns: 1fr;
    }

    .page-contact__channel-card {
        padding: 25px;
    }

    /* Mobile image responsiveness */
    .page-contact img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    
    .page-contact__section,
    .page-contact__card,
    .page-contact__container,
    .page-contact__hero-image-wrapper,
    .page-contact__location-info,
    .page-contact__feedback-form,
    .page-contact__cta-buttons {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important;
    }

    .page-contact__video-section { /* No video in this page, but keeping for robustness */
        padding-top: 10px !important; 
    }

    /* Mobile button responsiveness */
    .page-contact__cta-button,
    .page-contact__btn-primary,
    .page-contact__btn-secondary,
    .page-contact a[class*="button"],
    .page-contact a[class*="btn"] {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .page-contact__cta-buttons,
    .page-contact__button-group,
    .page-contact__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-direction: column !important; /* Stack buttons vertically */
        gap: 10px !important;
    }

    .page-contact__faq-question {
        font-size: 1em !important;
        padding: 15px 20px;
    }
    .page-contact__faq-answer {
        padding: 0 20px 15px 20px;
    }

    .page-contact__form-input,
    .page-contact__form-textarea {
        padding: 10px;
    }

    .page-contact__submit-btn {
        padding: 12px;
        font-size: 1em;
    }
}

@media (max-width: 480px) {
    .page-contact__main-title {
        font-size: 1.8em !important;
    }
    .page-contact__section-title {
        font-size: 1.6em !important;
    }
    .page-contact__cta-title {
        font-size: 1.8em !important;
    }
    .page-contact__channel-icon {
        width: 80px;
        height: 80px;
    }
}