/* --- CSS cho trang Đăng Ký (register.css) --- */

/* Biến màu từ custom.json */
:root {
    --vt888-primary-color: #113B7A;
    --vt888-secondary-color: #1D5FD1;
    --vt888-button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
    --vt888-card-bg: #10233F;
    --vt888-text-main: #F3F8FF;
    --vt888-text-secondary: #AFC4E8;
    --vt888-border-color: #244D84;
    --vt888-glow-color: #4FA8FF;
    --vt888-gold-color: #F2C14E;
    --vt888-divider-color: #1B3357;
    --vt888-deep-navy-color: #08162B;
}

/* Đảm bảo màu chữ chính trong main content tương phản với body background */
.page-register {
    color: var(--vt888-text-main); /* Deep Navy (#08162B) là nền tối, dùng chữ sáng */
    background-color: var(--vt888-deep-navy-color);
}

/* HERO Section */
.page-register__hero-section {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 10px; /* Nhỏ hơn so với --header-offset để tránh double padding */
    padding-bottom: 60px;
    overflow: hidden;
    isolation: isolate;
}

.page-register__hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

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

.page-register__hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 20px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 10px;
}

.page-register__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--vt888-gold-color);
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.7);
}

.page-register__hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--vt888-text-main);
    margin-bottom: 30px;
    line-height: 1.6;
}

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

.page-register__btn-primary,
.page-register__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    min-width: 180px;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-register__btn-primary {
    background: var(--vt888-button-gradient);
    color: var(--vt888-text-main);
    border: 2px solid var(--vt888-glow-color);
    box-shadow: 0 0 15px var(--vt888-glow-color);
}

.page-register__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 20px var(--vt888-glow-color);
}

.page-register__btn-secondary {
    background: var(--vt888-card-bg);
    color: var(--vt888-text-main);
    border: 2px solid var(--vt888-border-color);
}

.page-register__btn-secondary:hover {
    background: var(--vt888-primary-color);
    transform: translateY(-3px);
}

/* General Section Styling */
.page-register__section {
    padding: 60px 20px;
    text-align: center;
    border-bottom: 1px solid var(--vt888-divider-color);
}

.page-register__section:last-of-type {
    border-bottom: none;
}

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

.page-register__section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    color: var(--vt888-gold-color);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.3;
}

.page-register__section-description {
    font-size: 1.1rem;
    color: var(--vt888-text-secondary);
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

/* Why Join Section */
.page-register__why-join-section {
    background-color: var(--vt888-deep-navy-color);
}

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

.page-register__benefit-card {
    background: var(--vt888-card-bg);
    border: 1px solid var(--vt888-border-color);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-register__benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3), 0 0 15px var(--vt888-glow-color);
}

.page-register__card-title {
    font-size: 1.5rem;
    color: var(--vt888-gold-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-register__card-text {
    font-size: 1rem;
    color: var(--vt888-text-secondary);
    line-height: 1.6;
}

/* How To Register Section */
.page-register__how-to-register-section {
    background-color: var(--vt888-primary-color);
}

.page-register__dark-section .page-register__section-title,
.page-register__dark-section .page-register__section-description {
    color: var(--vt888-text-main);
}

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

.page-register__step-card {
    background: var(--vt888-card-bg);
    border: 1px solid var(--vt888-border-color);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-register__step-card img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    display: block;
    object-fit: cover;
}

.page-register__tip-box {
    background: var(--vt888-card-bg);
    border: 1px solid var(--vt888-border-color);
    border-radius: 10px;
    padding: 30px;
    margin-top: 60px;
    text-align: left;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-register__tip-title {
    font-size: 1.6rem;
    color: var(--vt888-gold-color);
    margin-bottom: 20px;
    font-weight: 600;
}

.page-register__tip-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.page-register__tip-list li {
    font-size: 1rem;
    color: var(--vt888-text-secondary);
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
}

.page-register__tip-list li::before {
    content: '✓';
    color: var(--vt888-glow-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Security Section */
.page-register__security-section {
    background-color: var(--vt888-deep-navy-color);
}

.page-register__security-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
}

.page-register__text-block {
    flex: 1;
    min-width: 300px;
    text-align: left;
}

.page-register__sub-title {
    font-size: 1.8rem;
    color: var(--vt888-gold-color);
    margin-bottom: 15px;
    font-weight: 600;
    line-height: 1.4;
}

.page-register__text-block p {
    font-size: 1rem;
    color: var(--vt888-text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.page-register__text-block p a {
    color: var(--vt888-glow-color);
    text-decoration: none;
    font-weight: 500;
}

.page-register__text-block p a:hover {
    text-decoration: underline;
}

.page-register__image-block {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-register__image-block img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    display: block;
}

/* Bonus Section */
.page-register__bonus-section {
    background-color: var(--vt888-primary-color);
}

.page-register__bonus-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
}

.page-register__bonus-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    display: block;
}

.page-register__btn-block {
    width: 100%;
    margin-top: 20px;
}

/* FAQ Section */
.page-register__faq-section {
    background-color: var(--vt888-deep-navy-color);
}

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

details.page-register__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid var(--vt888-border-color);
  overflow: hidden;
  background: var(--vt888-card-bg);
}
details.page-register__faq-item summary.page-register__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-register__faq-item summary.page-register__faq-question::-webkit-details-marker {
  display: none;
}
details.page-register__faq-item summary.page-register__faq-question:hover {
  background: var(--vt888-primary-color);
}
.page-register__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--vt888-text-main);
}
.page-register__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--vt888-gold-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-register__faq-item .page-register__faq-answer {
  padding: 0 20px 20px;
  background: var(--vt888-primary-color);
  border-radius: 0 0 5px 5px;
  color: var(--vt888-text-secondary);
  line-height: 1.6;
}

/* Contact Section */
.page-register__contact-section {
    background-color: var(--vt888-primary-color);
}

.page-register__contact-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
}

.page-register__contact-image {
    max-width: 100%;
    height: auto;
    margin-top: 40px;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* SEO Content Section */
.page-register__seo-content-section {
    padding: 80px 20px;
    background-color: var(--vt888-deep-navy-color);
    text-align: left;
}

.page-register__article-body {
    max-width: 900px;
    margin: 0 auto;
    color: var(--vt888-text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

.page-register__article-body h2,
.page-register__article-body h3 {
    color: var(--vt888-gold-color);
    margin-top: 40px;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.3;
}

.page-register__article-body h2 {
    font-size: 2.2rem;
}

.page-register__article-body h3 {
    font-size: 1.8rem;
}

.page-register__article-body p {
    margin-bottom: 20px;
}

.page-register__article-body strong {
    color: var(--vt888-text-main);
}

.page-register__article-body a {
    color: var(--vt888-glow-color);
    text-decoration: none;
    font-weight: 500;
}

.page-register__article-body a:hover {
    text-decoration: underline;
}

.page-register__article-list {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: 20px;
}

.page-register__article-list li {
    margin-bottom: 10px;
    color: var(--vt888-text-secondary);
}

.page-register__article-figure {
    margin: 40px auto;
    text-align: center;
}

.page-register__article-figure img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    display: block;
    margin: 0 auto;
}

.page-register__article-figure figcaption {
    font-size: 0.9rem;
    color: var(--vt888-text-secondary);
    margin-top: 10px;
    font-style: italic;
}

.page-register__article-cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 40px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* --- Responsive Styles --- */

/* Tablet (max-width: 1024px) */
@media (max-width: 1024px) {
    .page-register__hero-content {
        padding: 15px;
    }

    .page-register__main-title {
        font-size: clamp(2rem, 4vw, 3rem);
    }

    .page-register__hero-description {
        font-size: clamp(0.9rem, 1.8vw, 1.1rem);
    }

    .page-register__btn-primary,
    .page-register__btn-secondary {
        padding: 12px 25px;
        font-size: 1rem;
        min-width: 160px;
    }

    .page-register__section {
        padding: 50px 15px;
    }

    .page-register__section-title {
        font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    }

    .page-register__section-description {
        font-size: 1rem;
        margin-bottom: 30px;
    }

    .page-register__benefits-grid,
    .page-register__steps-grid {
        gap: 20px;
    }

    .page-register__benefit-card,
    .page-register__step-card {
        padding: 25px;
    }

    .page-register__card-title {
        font-size: 1.3rem;
    }

    .page-register__tip-title {
        font-size: 1.4rem;
    }

    .page-register__security-content,
    .page-register__bonus-content {
        flex-direction: column;
        gap: 30px;
    }

    .page-register__image-block img,
    .page-register__bonus-image {
        max-width: 80%;
    }

    .page-register__sub-title {
        font-size: 1.6rem;
    }

    .page-register__faq-list {
        max-width: 700px;
    }

    .page-register__faq-qtext {
        font-size: 15px;
    }

    .page-register__article-body h2 {
        font-size: 2rem;
    }

    .page-register__article-body h3 {
        font-size: 1.6rem;
    }
}

/* Mobile (max-width: 768px) */
@media (max-width: 768px) {
    .page-register__hero-section {
        padding-top: 10px; /* Force small top padding */
        padding-bottom: 40px;
    }

    .page-register__hero-image img {
        object-fit: contain !important;
        aspect-ratio: unset !important;
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

    .page-register__hero-content {
        padding: 10px;
        max-width: 100%;
        width: 100%;
        box-sizing: border-box;
    }

    .page-register__main-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
        margin-bottom: 15px;
    }

    .page-register__hero-description {
        font-size: clamp(0.85rem, 3.5vw, 1rem);
        margin-bottom: 20px;
    }

    .page-register__cta-buttons {
        flex-direction: column;
        gap: 15px;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-register__btn-primary,
    .page-register__btn-secondary {
        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-register__section {
        padding: 40px 0;
    }

    .page-register__container {
        padding: 0 15px;
        max-width: 100%;
        width: 100%;
        box-sizing: border-box;
    }

    .page-register__section-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
        margin-bottom: 15px;
    }

    .page-register__section-description {
        font-size: 0.9rem;
        margin-bottom: 25px;
    }

    .page-register__benefits-grid,
    .page-register__steps-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-register__benefit-card,
    .page-register__step-card {
        padding: 20px;
    }

    .page-register__card-title {
        font-size: 1.2rem;
    }

    .page-register__card-text {
        font-size: 0.9rem;
    }

    .page-register__tip-box {
        padding: 25px;
        margin-top: 40px;
    }

    .page-register__tip-title {
        font-size: 1.3rem;
    }

    .page-register__tip-list li {
        font-size: 0.9rem;
    }

    .page-register__security-content,
    .page-register__bonus-content {
        flex-direction: column;
        gap: 25px;
    }

    .page-register__image-block img,
    .page-register__bonus-image,
    .page-register__contact-image {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }

    .page-register__text-block {
        min-width: unset;
        width: 100%;
    }

    .page-register__sub-title {
        font-size: 1.4rem;
    }

    .page-register__text-block p {
        font-size: 0.9rem;
    }

    details.page-register__faq-item summary.page-register__faq-question { padding: 15px; }
    .page-register__faq-qtext { font-size: 15px; }
    details.page-register__faq-item .page-register__faq-answer { padding: 0 15px 15px; }

    .page-register__contact-buttons {
        flex-direction: column;
        gap: 15px;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-register__seo-content-section {
        padding: 40px 15px;
    }

    .page-register__article-body {
        font-size: 0.9rem;
    }

    .page-register__article-body h2 {
        font-size: 1.8rem;
    }

    .page-register__article-body h3 {
        font-size: 1.5rem;
    }

    .page-register__article-list {
        padding-left: 15px;
    }

    .page-register__article-figure {
        margin: 30px auto;
    }

    .page-register__article-cta-buttons {
        gap: 10px;
    }

    /* Ensure all images and their containers prevent horizontal scroll */
    .page-register img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }

    .page-register__section,
    .page-register__card,
    .page-register__container,
    .page-register__hero-section,
    .page-register__benefits-grid,
    .page-register__steps-grid,
    .page-register__security-content,
    .page-register__bonus-content,
    .page-register__contact-buttons,
    .page-register__article-cta-buttons {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        /* Add horizontal padding if not already present in .page-register__container */
        /* padding-left: 15px; padding-right: 15px; */
    }

    /* Specific for product grid if it were here, ensuring 2 columns on mobile */
    /* .page-register__products-grid { grid-template-columns: 1fr 1fr; overflow-x: hidden; } */
}