* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.container_b5 {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Button Styles */
.btn_b5 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 0 20px;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-login_b5 {
    color: #ffffff;
    border: 1px solid #ffffff;
    background: transparent;
}

.btn-login_b5:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-signup_b5 {
    color: #ffffff;
    background: linear-gradient(135deg, #ff7b00, #ff5100);
    border: none;
    box-shadow: 0 4px 10px rgba(255, 123, 0, 0.3);
}

.btn-signup_b5:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(255, 123, 0, 0.4);
}

/* Announcement Banner */
.announcement-banner_b5 {
    height: 40px;
    background: linear-gradient(to right, #ff7b00, #ff5100);
    color: #ffffff;
    overflow: hidden;
}

.announcement-banner_b5 .container_b5 {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.announcement-banner_b5 p {
    font-size: 14px;
    font-weight: 500;
}

.close-banner_b5 {
    background: none;
    border: none;
    color: #ffffff;
    cursor: pointer;
    font-size: 16px;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.close-banner_b5:hover {
    opacity: 1;
}

/* Header Styles */
.header_b5 {
    padding-top: 25px;
    padding-bottom: 30px;
    background: linear-gradient(to right, #1a2b5f, #222f5a);
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-wrapper_b5 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

Logo Styles
.logo_b5 {
    display: flex;
    align-items: center;
}

.logo-icon_b5 {
    color: #ff7b00;
    font-size: 24px;
    margin-right: 8px;
}

.logo-text_b5 {
    font-weight: 700;
    font-size: 22px;
    color: #ffffff;
    letter-spacing: 0.5px;
}

.mining_b5 {
    font-weight: 400;
    opacity: 0.9;
    margin-left: 2px;
}

/* Navigation Styles */
.nav-desktop_b5 {
    display: flex;
    align-items: center;
}

.nav-links_b5 {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link_b5 {
    color: #e0e0e0;
    font-size: 15px;
    font-weight: 500;
    padding: 6px 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link_b5:hover {
    color: #ffffff;
}

.nav-link_b5.active_b5 {
    color: #ffffff;
}

.nav-link_b5.active_b5::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background-color: #ff7b00;
    border-radius: 1px;
}

/* Auth Container Styles */
.auth-container_b5 {
    display: flex;
    align-items: center;
}

.auth-buttons_b5 {
    display: flex;
    gap: 12px;
}

/* User Profile Styles */
.user-profile_b5 {
    display: flex;
    align-items: center;
    position: relative;
    cursor: pointer;
}

.coin-balance_b5 {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    margin-right: 15px;
    color: #ffffff;
}

.coin-balance_b5 i {
    color: #ffc107;
    margin-right: 5px;
}

.user-info_b5 {
    display: flex;
    align-items: center;
    gap: 8px;
}

.user-avatar_b5 {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.username_b5 {
    font-size: 14px;
    font-weight: 500;
    color: #ffffff;
}

.dropdown-icon_b5 {
    color: #e0e0e0;
    font-size: 12px;
    transition: transform 0.3s ease;
}

.user-profile_b5:hover .dropdown-icon_b5 {
    transform: rotate(180deg);
}

/* Dropdown Menu Styles */
.dropdown-menu_b5 {
    position: absolute;
    top: 50px;
    right: 0;
    width: 200px;
    background: #1a2b5f;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    padding: 10px 0;
    display: none;
    z-index: 100;
}

.dropdown-menu_b5 a {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    color: #e0e0e0;
    font-size: 14px;
    transition: background 0.3s ease;
}

.dropdown-menu_b5 a i {
    margin-right: 10px;
    font-size: 16px;
}

.dropdown-menu_b5 a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
}

.dropdown-menu_b5 a.logout_b5 {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 5px;
    color: #ff5757;
}

/* Show dropdown on hover */
.user-profile_b5:hover .dropdown-menu_b5 {
    display: block;
    animation: fadeInDown 0.3s ease;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Menu Button */
.mobile-menu-btn_b5 {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 22px;
    cursor: pointer;
}

.mobile-menu-btn_b5 span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: #ffffff;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Mobile Menu */
.mobile-menu_b5 {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100vh;
    background: linear-gradient(to bottom, #1a2b5f, #192550);
    z-index: 1001;
    padding: 20px;
    overflow-y: auto;
    transition: left 0.4s ease;
}

.mobile-menu-header_b5 {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.close-menu_b5 {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 24px;
    cursor: pointer;
}

.mobile-user-profile_b5 {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 20px;
}

.mobile-user-profile_b5 .user-info_b5 {
    display: flex;
    align-items: center;
}

.mobile-user-profile_b5 .user-avatar_b5 {
    width: 50px;
    height: 50px;
    margin-right: 15px;
}

.mobile-user-profile_b5 .user-details_b5 {
    display: flex;
    flex-direction: column;
}

.mobile-user-profile_b5 .username_b5 {
    font-size: 16px;
    margin-bottom: 5px;
}

.mobile-user-profile_b5 .coin-balance_b5 {
    background: none;
    padding: 0;
    margin: 0;
    font-size: 14px;
}

.mobile-nav_b5 {
    display: flex;
    flex-direction: column;
    margin-bottom: 30px;
}

.mobile-nav-link_b5 {
    color: #e0e0e0;
    padding: 12px 0;
    font-size: 16px;
    font-weight: 500;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: color 0.3s ease;
}

.mobile-nav-link_b5.active_b5 {
    color: #ff7b00;
}

.mobile-nav-link_b5:hover {
    color: #ffffff;
}

.mobile-nav-link_b5.logout_b5 {
    color: #ff5757;
}

.mobile-auth-buttons_b5 {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 30px;
}

.mobile-auth-buttons_b5 .btn_b5 {
    width: 100%;
    height: 48px;
}





@media (max-width: 991px) {
    .nav-desktop_b5 {
        display: none;
    }
    
    .mobile-menu-btn_b5 {
        display: flex;
    }
    
    .header_b5 {
        padding-top: 20px;
        padding-bottom: 25px;
    }
    
    .auth-buttons_b5 {
        display: none;
    }
}

@media (max-width: 767px) {
    .announcement-banner_b5 {
        height: auto;
        padding: 10px 0;
    }
    
    .announcement-banner_b5 .container_b5 {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .close-banner_b5 {
        position: absolute;
        top: 10px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .logo-text_b5 {
        font-size: 18px;
    }
    
    .btn_b5 {
        padding: 0 15px;
        font-size: 14px;
    }
    
    .user-profile_b5 .username_b5 {
        display: none;
    }
    
    .coin-balance_b5 {
        margin-right: 10px;
    }
}