/* style/register.css */
/* body đã padding-top: var(--header-offset)；trang cấm viết lại biến này */

/* Custom color variables */
:root {
    --page-register-primary: #11A84E;
    --page-register-secondary: #22C768;
    --page-register-btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    --page-register-card-bg: #11271B;
    --page-register-background: #08160F;
    --page-register-text-main: #F2FFF6;
    --page-register-text-secondary: #A7D9B8;
    --page-register-border: #2E7A4E;
    --page-register-glow: #57E38D;
    --page-register-gold: #F2C14E;
    --page-register-divider: #1E3A2A;
    --page-register-deep-green: #0A4B2C;
}

.page-register {
    font-family: 'Arial', sans-serif;
    color: var(--page-register-text-main); /* Default text color for the page */
    background-color: var(--page-register-background);
    line-height: 1.6;
}

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

.page-register__hero-section {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
    padding-top: 10px; /* body đã xử lý --header-offset, chỉ cần padding nhỏ */
    overflow: hidden;
    background-color: var(--page-register-deep-green); /* Fallback background color */
}

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

.page-register__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.5); /* Darken image for text readability */
}

.page-register__hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    color: var(--page-register-text-main);
}

.page-register__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem); /* Responsive font size */
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--page-register-gold);
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.page-register__description {
    font-size: 1.15rem;
    margin-bottom: 30px;
    color: var(--page-register-text-secondary);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-register__cta-button {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    cursor: pointer;
}

.page-register__btn-primary {
    background: var(--page-register-btn-gradient);
    color: #ffffff;
    border: none;
}

.page-register__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    opacity: 0.9;
}

.page-register__section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: var(--page-register-gold);
}

.page-register__dark-section {
    background-color: var(--page-register-card-bg); /* Darker background for contrast */
    padding: 80px 0;
    color: var(--page-register-text-main);
}

.page-register__benefits-grid,
.page-register__steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.page-register__card {
    background-color: var(--page-register-background); /* Lighter dark background for cards */
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--page-register-border);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-register__card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.page-register__card-image {
    width: 100%;
    max-width: 250px;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    object-fit: cover;
}

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

.page-register__card-text {
    font-size: 1rem;
    color: var(--page-register-text-secondary);
}

.page-register__how-to-register-section,
.page-register__tips-section,
.page-register__faq-section,
.page-register__cta-final-section {
    padding: 80px 0;
}

.page-register__text-block {
    font-size: 1.1rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px auto;
    color: var(--page-register-text-secondary);
}

.page-register__cta-block {
    text-align: center;
    margin-top: 60px;
}

.page-register__cta-text {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 25px;
    color: var(--page-register-text-main);
}

.page-register__tips-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.page-register__tip-item {
    text-align: left;
    padding: 25px;
}

.page-register__tip-item .page-register__card-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--page-register-gold);
}

.page-register__tip-item .page-register__card-text {
    font-size: 1rem;
    color: var(--page-register-text-secondary);
}

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

.page-register__faq-item {
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
    background-color: var(--page-register-card-bg);
    border: 1px solid var(--page-register-border);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.page-register__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--page-register-text-main);
    cursor: pointer;
    background-color: var(--page-register-deep-green);
    border-bottom: 1px solid var(--page-register-border);
    list-style: none; /* For details/summary */
}
.page-register__faq-item[open] .page-register__faq-question {
    border-bottom: 1px solid var(--page-register-divider);
}

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

.page-register__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    color: var(--page-register-gold);
    margin-left: 15px;
    transition: transform 0.3s ease;
}

.page-register__faq-item[open] .page-register__faq-toggle {
    transform: rotate(45deg); /* Change '+' to 'x' or rotate */
}

.page-register__faq-answer {
    padding: 20px 25px;
    font-size: 1rem;
    color: var(--page-register-text-secondary);
    background-color: var(--page-register-background);
}

/* Responsive Styles */
@media (max-width: 768px) {
    .page-register {
        font-size: 16px;
        line-height: 1.6;
    }

    .page-register__container {
        padding: 0 15px;
    }

    .page-register__hero-section {
        padding: 40px 15px;
        padding-top: 10px !important; /* body đã xử lý --header-offset */
    }

    .page-register__main-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
    }

    .page-register__description {
        font-size: 1rem;
    }

    .page-register__cta-button {
        padding: 12px 25px;
        font-size: 1rem;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-register__cta-block .page-register__cta-button {
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-register__section-title {
        font-size: clamp(1.8rem, 7vw, 2.2rem);
        margin-bottom: 30px;
    }

    .page-register__dark-section,
    .page-register__how-to-register-section,
    .page-register__tips-section,
    .page-register__faq-section,
    .page-register__cta-final-section {
        padding: 50px 0;
    }

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

    .page-register__card {
        padding: 20px;
    }

    .page-register__card-image {
        max-width: 200px;
    }

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

    .page-register__text-block {
        font-size: 1rem;
        margin-bottom: 30px;
    }

    .page-register__faq-question {
        font-size: 1rem;
        padding: 15px 20px;
    }

    .page-register__faq-toggle {
        font-size: 1.5rem;
    }

    .page-register__faq-answer {
        padding: 15px 20px;
        font-size: 0.95rem;
    }

    /* Mobile image responsiveness */
    .page-register img {
        max-width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    
    .page-register__section,
    .page-register__card,
    .page-register__container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-register__hero-image-wrapper {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    /* Button containers mobile adaptation */
    .page-register__cta-buttons,
    .page-register__button-group,
    .page-register__btn-container {
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
      padding-left: 15px;
      padding-right: 15px;
      flex-wrap: wrap !important; /* Allow multiple buttons to wrap */
      gap: 10px; /* Space between wrapped buttons */
    }
    .page-register__cta-buttons {
      display: flex;
      flex-direction: column; /* Stack buttons vertically on mobile */
    }
}