/* Bắt đầu CSS cho trang op88.ink */
    :root {
        --page-op88-ink__primary-color: #e44d26; /* Màu cam đậm, có thể thay đổi để phù hợp với thương hiệu */
        --page-op88-ink__secondary-color: #1a1a1a; /* Màu nền tối */
        --page-op88-ink__text-color: #f0f0f0; /* Màu chữ sáng */
        --page-op88-ink__accent-color: #4CAF50; /* Màu xanh lá cây cho điểm nhấn */
        --page-op88-ink__border-color: #3a3a3a;
        --page-op88-ink__button-bg: #e44d26;
        --page-op88-ink__button-text: #ffffff;
        --page-op88-ink__button-hover-bg: #ff6f42;
    }

    .page-op88-ink {
        font-family: 'Arial', sans-serif;
        background-color: var(--page-op88-ink__secondary-color);
        color: var(--page-op88-ink__text-color);
        line-height: 1.6;
        overflow-x: hidden; /* Ngăn chặn cuộn ngang */
    }

    .page-op88-ink__container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
        box-sizing: border-box;
    }

    /* Hero Section */
    .page-op88-ink__hero-section {
        background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('[GALLERY:hero:1920x1080:op88,betting,stadium,lights]') no-repeat center center/cover;
        padding: 80px 15px 50px; /* Adjusted padding-top for header offset */
        text-align: center;
        position: relative;
        overflow: hidden;
        min-height: 450px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        border-bottom: 2px solid var(--page-op88-ink__primary-color);
    }
    @media (max-width: 768px) {
        .page-op88-ink__hero-section {
            padding-top: 60px; /* Reduced padding for smaller screens */
            min-height: 350px;
        }
    }

    .page-op88-ink__hero-title {
        font-size: 2.8em;
        color: var(--page-op88-ink__primary-color);
        margin-bottom: 15px;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
        word-wrap: break-word; /* Ensure title wraps */
    }
    @media (max-width: 768px) {
        .page-op88-ink__hero-title {
            font-size: 2.2em;
        }
    }
    @media (max-width: 480px) {
        .page-op88-ink__hero-title {
            font-size: 1.8em;
        }
    }

    .page-op88-ink__hero-subtitle {
        font-size: 1.4em;
        color: var(--page-op88-ink__text-color);
        max-width: 700px;
        margin: 0 auto 30px;
        text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }
    @media (max-width: 768px) {
        .page-op88-ink__hero-subtitle {
            font-size: 1.1em;
        }
    }

    .page-op88-ink__promo-button {
        background-color: var(--page-op88-ink__accent-color);
        color: var(--page-op88-ink__button-text);
        padding: 12px 25px;
        border: none;
        border-radius: 5px;
        font-size: 1.1em;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.2s ease;
        text-decoration: none;
        display: inline-block;
    }

    .page-op88-ink__promo-button:hover {
        background-color: #5cb85c;
        transform: translateY(-2px);
    }

    /* Floating Register/Login Buttons */
    .page-op88-ink__floating-buttons {
        position: fixed;
        bottom: 20px;
        right: 20px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        z-index: 1000;
    }
    @media (max-width: 768px) {
        .page-op88-ink__floating-buttons {
            bottom: 10px;
            right: 10px;
        }
    }

    .page-op88-ink__floating-button {
        background-color: var(--page-op88-ink__primary-color);
        color: var(--page-op88-ink__button-text);
        padding: 10px 20px;
        border: none;
        border-radius: 50px;
        font-size: 1em;
        cursor: pointer;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        transition: background-color 0.3s ease, transform 0.2s ease;
        min-width: 100px;
        text-align: center;
    }

    .page-op88-ink__floating-button:hover {
        background-color: var(--page-op88-ink__button-hover-bg);
        transform: translateY(-2px);
    }

    /* Section Styling */
    .page-op88-ink__section {
        padding: 50px 0;
        text-align: center;
    }
    @media (max-width: 768px) {
        .page-op88-ink__section {
            padding: 30px 0;
        }
    }

    .page-op88-ink__section-title {
        font-size: 2.2em;
        color: var(--page-op88-ink__primary-color);
        margin-bottom: 30px;
        position: relative;
        padding-bottom: 10px;
    }

    .page-op88-ink__section-title::after {
        content: '';
        position: absolute;
        left: 50%;
        bottom: 0;
        transform: translateX(-50%);
        width: 80px;
        height: 3px;
        background-color: var(--page-op88-ink__accent-color);
    }
    @media (max-width: 768px) {
        .page-op88-ink__section-title {
            font-size: 1.8em;
            margin-bottom: 20px;
        }
    }

    /* About Section */
    .page-op88-ink__about-content {
        max-width: 800px;
        margin: 0 auto;
        font-size: 1.1em;
        line-height: 1.8;
        text-align: justify;
    }
    .page-op88-ink__about-content p {
        margin-bottom: 20px;
    }
    @media (max-width: 768px) {
        .page-op88-ink__about-content {
            font-size: 1em;
            text-align: left;
        }
    }

    /* Game Categories */
    .page-op88-ink__game-categories {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }
    @media (max-width: 768px) {
        .page-op88-ink__game-categories {
            grid-template-columns: 1fr; /* Single column on mobile */
            gap: 20px;
        }
    }

    .page-op88-ink__game-card {
        background-color: #2a2a2a;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        text-align: center;
        padding-bottom: 20px;
    }

    .page-op88-ink__game-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-op88-ink__game-card-image {
        width: 100%;
        height: 200px; /* Fixed height for consistency */
        object-fit: cover;
        display: block;
        border-bottom: 3px solid var(--page-op88-ink__primary-color);
        max-width: 100%; /* Ensure responsive image */
        box-sizing: border-box; /* Include padding/border in width */
    }
    @media (max-width: 768px) {
        .page-op88-ink__game-card-image {
            height: 180px;
        }
    }

    .page-op88-ink__game-card-title {
        font-size: 1.5em;
        color: var(--page-op88-ink__primary-color);
        margin: 20px 0 10px;
        padding: 0 15px;
        word-wrap: break-word; /* Ensure title wraps */
    }

    .page-op88-ink__game-card-description {
        font-size: 0.95em;
        color: var(--page-op88-ink__text-color);
        padding: 0 15px;
        margin-bottom: 20px;
        text-align: left;
    }
    @media (max-width: 768px) {
        .page-op88-ink__game-card-description {
            font-size: 0.9em;
        }
    }

    .page-op88-ink__game-card-button {
        background-color: var(--page-op88-ink__accent-color);
        color: var(--page-op88-ink__button-text);
        padding: 10px 20px;
        border: none;
        border-radius: 5px;
        font-size: 0.9em;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.2s ease;
        display: inline-block;
    }

    .page-op88-ink__game-card-button:hover {
        background-color: #5cb85c;
        transform: translateY(-2px);
    }

    /* Promotions Section */
    .page-op88-ink__promotions-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }
    @media (max-width: 768px) {
        .page-op88-ink__promotions-grid {
            grid-template-columns: 1fr; /* Single column on mobile */
            gap: 20px;
        }
    }

    .page-op88-ink__promo-card {
        background-color: #2a2a2a;
        border-radius: 10px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
        padding: 25px;
        text-align: left;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        border: 1px solid var(--page-op88-ink__border-color);
    }

    .page-op88-ink__promo-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-op88-ink__promo-card-title {
        font-size: 1.4em;
        color: var(--page-op88-ink__primary-color);
        margin-bottom: 15px;
        word-wrap: break-word;
    }

    .page-op88-ink__promo-card-description {
        font-size: 1em;
        color: var(--page-op88-ink__text-color);
        margin-bottom: 15px;
    }

    .page-op88-ink__promo-card-date {
        font-size: 0.85em;
        color: #aaa;
    }

    /* Payment Methods & Game Providers */
    .page-op88-ink__logo-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 20px;
        margin-top: 40px;
        align-items: center;
        justify-items: center;
    }
    @media (max-width: 768px) {
        .page-op88-ink__logo-grid {
            grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
            gap: 15px;
        }
    }

    .page-op88-ink__logo-item {
        background-color: #3a3a3a;
        padding: 15px;
        border-radius: 8px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        display: flex;
        justify-content: center;
        align-items: center;
        height: 80px;
        max-width: 150px;
        transition: transform 0.2s ease;
        box-sizing: border-box;
    }

    .page-op88-ink__logo-item:hover {
        transform: translateY(-3px);
    }

    .page-op88-ink__logo-image {
        max-width: 100%;
        max-height: 100%;
        object-fit: contain;
        display: block;
        filter: grayscale(20%); /* Subtle effect, not changing color */
        transition: filter 0.3s ease;
        box-sizing: border-box;
    }
    .page-op88-ink__logo-image:hover {
        filter: grayscale(0%);
    }

    /* FAQ Section */
    .page-op88-ink__faq-list {
        max-width: 800px;
        margin: 40px auto 0;
        text-align: left;
    }
    @media (max-width: 768px) {
        .page-op88-ink__faq-list {
            margin-top: 20px;
        }
    }

    .page-op88-ink__faq-item {
        background-color: #2a2a2a;
        border: 1px solid var(--page-op88-ink__border-color);
        border-radius: 8px;
        margin-bottom: 15px;
        overflow: hidden;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    }

    .page-op88-ink__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 20px;
        background-color: #3a3a3a;
        cursor: pointer;
        user-select: none;
        font-size: 1.1em;
        color: var(--page-op88-ink__primary-color);
        border-bottom: 1px solid transparent;
        transition: background-color 0.3s ease, border-bottom-color 0.3s ease;
    }

    .page-op88-ink__faq-question:hover {
        background-color: #4a4a4a;
    }

    .page-op88-ink__faq-question h3 {
        margin: 0;
        font-size: 1.1em;
        color: inherit;
        pointer-events: none; /* Prevent h3 from blocking click */
        word-wrap: break-word; /* Ensure question wraps */
        flex-grow: 1;
        padding-right: 10px;
    }
    @media (max-width: 768px) {
        .page-op88-ink__faq-question h3 {
            font-size: 1em;
        }
    }

    .page-op88-ink__faq-toggle {
        font-size: 1.5em;
        font-weight: bold;
        color: var(--page-op88-ink__accent-color);
        transition: transform 0.3s ease;
        pointer-events: none; /* Prevent toggle from blocking click */
    }

    .page-op88-ink__faq-item.active .page-op88-ink__faq-toggle {
        transform: rotate(45deg); /* Rotate '+' to 'x' or use '-' directly */
    }

    .page-op88-ink__faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 15px; /* Adjust padding here */
        opacity: 0;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
        color: var(--page-op88-ink__text-color);
    }

    .page-op88-ink__faq-item.active .page-op88-ink__faq-answer {
        max-height: 2000px !important; /* Sufficiently large */
        padding: 20px 15px !important; /* Ensure padding is applied when active */
        opacity: 1;
    }
    .page-op88-ink__faq-answer p {
        margin: 0;
        font-size: 0.95em;
        line-height: 1.7;
    }
    @media (max-width: 768px) {
        .page-op88-ink__faq-answer p {
            font-size: 0.9em;
        }
    }

    /* Contact & Support Section */
    .page-op88-ink__contact-info {
        max-width: 700px;
        margin: 0 auto;
        font-size: 1.1em;
        line-height: 1.8;
    }
    .page-op88-ink__contact-info p {
        margin-bottom: 15px;
    }
    .page-op88-ink__contact-info strong {
        color: var(--page-op88-ink__primary-color);
    }
    @media (max-width: 768px) {
        .page-op88-ink__contact-info {
            font-size: 1em;
        }
    }

    /* General list item responsive rules for mobile */
    @media (max-width: 768px) {
        .page-op88-ink__game-categories .page-op88-ink__game-card,
        .page-op88-ink__promotions-grid .page-op88-ink__promo-card,
        .page-op88-ink__logo-grid .page-op88-ink__logo-item {
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
            word-wrap: break-word !important;
            overflow-wrap: break-word !important;
        }
        .page-op88-ink__game-categories,
        .page-op88-ink__promotions-grid,
        .page-op88-ink__logo-grid {
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            padding: 0 15px !important; /* Adjust to ensure content fits */
            margin-left: 0 !important;
            margin-right: 0 !important;
        }
    }
    /* Ensure all text wraps */
    .page-op88-ink p,
    .page-op88-ink h1,
    .page-op88-ink h2,
    .page-op88-ink h3,
    .page-op88-ink h4,
    .page-op88-ink h5,
    .page-op88-ink h6,
    .page-op88-ink span,
    .page-op88-ink div {
        word-wrap: break-word;
        overflow-wrap: break-word;
    }