/* style/su-kien-giai-dau.css */

:root {
    --primary-color: #FF8C1A;
    --secondary-color: #FFA53A;
    --card-bg: #17191F;
    --bg-color: #0D0E12;
    --text-main-color: #FFF3E6;
    --border-color: #A84F0C;
    --glow-color: #FFB04D;
    --deep-orange-color: #D96800;
}

.page-su-kien-giai-dau {
    font-family: Arial, sans-serif;
    color: var(--text-main-color); /* Body text color, assuming dark shared.css bg */
    background-color: var(--bg-color);
}

.page-su-kien-giai-dau__hero-section {
    padding-top: 10px; /* Small top padding, body handles header offset */
    padding-bottom: 60px;
    background-color: var(--bg-color);
}

.page-su-kien-giai-dau__hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 20px;
    flex-wrap: wrap;
}

.page-su-kien-giai-dau__hero-content {
    flex: 1 1 50%;
    min-width: 300px;
}

.page-su-kien-giai-dau__hero-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.page-su-kien-giai-dau__hero-description {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
    color: var(--text-main-color);
}

.page-su-kien-giai-dau__cta-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.page-su-kien-giai-dau__btn-primary,
.page-su-kien-giai-dau__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    text-align: center;
    transition: all 0.3s ease;
    box-sizing: border-box;
    max-width: 100%; /* Ensure responsiveness */
    white-space: normal;
    word-wrap: break-word;
}

.page-su-kien-giai-dau__btn-primary {
    background: linear-gradient(180deg, var(--secondary-color) 0%, var(--deep-orange-color) 100%);
    color: var(--text-main-color);
    border: none;
    box-shadow: 0 4px 15px rgba(255, 140, 26, 0.4);
}

.page-su-kien-giai-dau__btn-primary:hover {
    background: linear-gradient(180deg, var(--deep-orange-color) 0%, var(--secondary-color) 100%);
    box-shadow: 0 6px 20px rgba(255, 140, 26, 0.6);
}

.page-su-kien-giai-dau__btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.page-su-kien-giai-dau__btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--bg-color);
}

.page-su-kien-giai-dau__hero-image {
    flex: 1 1 40%;
    text-align: center;
    min-width: 300px;
}

.page-su-kien-giai-dau__hero-side-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-su-kien-giai-dau__content-area {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.page-su-kien-giai-dau__section-title {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.page-su-kien-giai-dau__section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--secondary-color);
    margin: 15px auto 0;
    border-radius: 2px;
}

.page-su-kien-giai-dau__intro-section,
.page-su-kien-giai-dau__event-types-section,
.page-su-kien-giai-dau__schedule-section,
.page-su-kien-giai-dau__rewards-section,
.page-su-kien-giai-dau__faq-section,
.page-su-kien-giai-dau__conclusion-section {
    padding: 60px 0;
    background-color: var(--bg-color);
}

.page-su-kien-giai-dau__intro-section p,
.page-su-kien-giai-dau__schedule-section p,
.page-su-kien-giai-dau__rewards-section p,
.page-su-kien-giai-dau__conclusion-section p {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 20px;
    text-align: justify;
    color: var(--text-main-color);
}

.page-su-kien-giai-dau__image-block {
    text-align: center;
    margin: 40px 0;
}

.page-su-kien-giai-dau__section-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

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

.page-su-kien-giai-dau__card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-main-color);
}

.page-su-kien-giai-dau__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 140, 26, 0.3);
}

.page-su-kien-giai-dau__card-title {
    font-size: 1.6rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.page-su-kien-giai-dau__card p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-main-color);
    margin-bottom: 20px;
}

.page-su-kien-giai-dau__card-link {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 5px;
}

.page-su-kien-giai-dau__card-link:hover {
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.page-su-kien-giai-dau__steps-list {
    list-style: none;
    counter-reset: step-counter;
    padding: 0;
    margin: 40px 0;
}

.page-su-kien-giai-dau__steps-list li {
    counter-increment: step-counter;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px 25px 20px 60px;
    margin-bottom: 15px;
    position: relative;
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-main-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-su-kien-giai-dau__steps-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--primary-color);
    color: var(--bg-color);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.page-su-kien-giai-dau__steps-list li a {
    color: var(--secondary-color);
    text-decoration: underline;
}

.page-su-kien-giai-dau__rewards-list {
    list-style: none;
    padding: 0;
    margin-top: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.page-su-kien-giai-dau__rewards-list li {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--text-main-color);
    position: relative;
    padding-left: 45px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.page-su-kien-giai-dau__rewards-list li::before {
    content: '⭐'; /* Unicode star emoji */
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
}

.page-su-kien-giai-dau__cta-center {
    text-align: center;
    margin-top: 40px;
}

.page-su-kien-giai-dau__faq-list {
    margin-top: 40px;
}

.page-su-kien-giai-dau__faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-su-kien-giai-dau__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--secondary-color);
    cursor: pointer;
    list-style: none; /* For <summary> tag */
    position: relative;
}

.page-su-kien-giai-dau__faq-question::-webkit-details-marker {
    display: none;
}

.page-su-kien-giai-dau__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.page-su-kien-giai-dau__faq-item[open] .page-su-kien-giai-dau__faq-toggle {
    transform: rotate(45deg);
}

.page-su-kien-giai-dau__faq-answer {
    padding: 0 25px 20px;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-main-color);
}

.page-su-kien-giai-dau__faq-answer p {
    margin-bottom: 0;
}

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

@media (max-width: 1024px) {
    .page-su-kien-giai-dau__hero-container {
        gap: 30px;
    }

    .page-su-kien-giai-dau__hero-content,
    .page-su-kien-giai-dau__hero-image {
        flex: 1 1 100%;
    }
    
    .page-su-kien-giai-dau__hero-image {
        order: -1; /* Image above text on smaller screens */
    }
}

@media (max-width: 768px) {
    .page-su-kien-giai-dau__hero-section {
        padding-top: 10px !important;
        padding-bottom: 40px;
    }

    .page-su-kien-giai-dau__hero-container {
        flex-direction: column;
        align-items: flex-start;
        padding: 15px;
    }

    .page-su-kien-giai-dau__hero-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
        text-align: left;
    }

    .page-su-kien-giai-dau__hero-description {
        font-size: 1rem;
        text-align: left;
    }

    .page-su-kien-giai-dau__cta-buttons {
        flex-direction: column;
        gap: 15px;
        width: 100%;
    }

    .page-su-kien-giai-dau__btn-primary,
    .page-su-kien-giai-dau__btn-secondary {
        max-width: 100% !important;
        width: 100% !important;
        padding: 12px 20px;
        font-size: 0.95rem;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-su-kien-giai-dau__hero-image {
        order: -1;
        width: 100%;
    }

    .page-su-kien-giai-dau__hero-side-image,
    .page-su-kien-giai-dau__section-image,
    .page-su-kien-giai-dau img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
        box-sizing: border-box !important;
    }
    
    .page-su-kien-giai-dau__content-area {
        padding: 30px 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }

    .page-su-kien-giai-dau__section-title {
        font-size: clamp(1.6rem, 7vw, 2.2rem);
        margin-bottom: 30px;
    }

    .page-su-kien-giai-dau__intro-section,
    .page-su-kien-giai-dau__event-types-section,
    .page-su-kien-giai-dau__schedule-section,
    .page-su-kien-giai-dau__rewards-section,
    .page-su-kien-giai-dau__faq-section,
    .page-su-kien-giai-dau__conclusion-section {
        padding: 40px 0;
    }

    .page-su-kien-giai-dau__intro-section p,
    .page-su-kien-giai-dau__schedule-section p,
    .page-su-kien-giai-dau__rewards-section p,
    .page-su-kien-giai-dau__conclusion-section p {
        font-size: 0.95rem;
        text-align: left;
    }

    .page-su-kien-giai-dau__card-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-su-kien-giai-dau__card {
        padding: 25px;
    }

    .page-su-kien-giai-dau__card-title {
        font-size: 1.4rem;
    }

    .page-su-kien-giai-dau__steps-list li {
        font-size: 1rem;
        padding: 15px 20px 15px 50px;
    }

    .page-su-kien-giai-dau__rewards-list {
        grid-template-columns: 1fr;
    }

    .page-su-kien-giai-dau__rewards-list li {
        font-size: 1rem;
        padding-left: 40px;
    }

    .page-su-kien-giai-dau__rewards-list li::before {
        font-size: 1.3rem;
        left: 10px;
    }

    .page-su-kien-giai-dau__faq-question {
        font-size: 1rem;
        padding: 15px 20px;
    }

    .page-su-kien-giai-dau__faq-toggle {
        font-size: 1.5rem;
    }

    .page-su-kien-giai-dau__faq-answer {
        padding: 0 20px 15px;
    }
}