@charset "utf-8";

/* ====== BIẾN MÀU SÁNG ĐỒNG BỘ ====== */
:root {
    /* Màu chính */
    --primary: #3498db;
    --primary-light: #5dade2;
    --primary-dark: #2980b9;
    --secondary: #2ecc71;
    --secondary-light: #58d68d;
    --accent: #e74c3c;
    --accent-light: #fd7e7e;
    
    /* Màu nền sáng */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-light: #f1f3f4;
    --bg-header: #ffffff;
    --bg-mobile-menu: rgba(255, 255, 255, 0.98);
    
    /* Màu văn bản */
    --text-primary: #2c3e50;
    --text-secondary: #34495e;
    --text-muted: #7f8c8d;
    --text-light: #95a5a6;
    
    /* Border và shadow */
    --border-color: #e9ecef;
    --border-radius: 10px;
    --border-radius-sm: 6px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --box-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    --box-shadow-menu: 0 10px 40px rgba(0, 0, 0, 0.1);
    --box-shadow-dropdown: 0 8px 25px rgba(0, 0, 0, 0.15);
    
    /* Transition */
    --transition: all 0.3s ease;
    --transition-slow: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ====== HEADER STYLES - THEME SÁNG ====== */
.h_chung {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    min-height: 70px;
    display: flex;
    align-items: center;
}

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

.c_header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 70px;
    gap: 20px;
}

/* ====== HEADER LEFT SECTION (Logo) ====== */
.header-left {
    flex-shrink: 0;
}

/* ====== LOGO ====== */
.c_logo {
    display: flex;
    align-items: center;
    height: 70px;
}

.c_logo img {
    height: 50px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    transition: var(--transition);
}

.c_logo:hover img {
    transform: scale(1.05);
}

/* ====== HEADER CENTER SECTION (Desktop Menu) ====== */
.header-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.c_menu {
    display: flex;
    align-items: center;
}

.c_menu ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 5px;
}

.c_menu li {
    margin: 0;
}

.c_menu li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    white-space: nowrap;
}

.c_menu li a:hover {
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary);
    transform: translateY(-1px);
}

.c_menu li a i {
    font-size: 14px;
    width: 18px;
    text-align: center;
}

/* ====== HEADER RIGHT SECTION (User Info + Function Button) ====== */
.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-shrink: 0;
}

/* ====== LOGIN INFO (Desktop) ====== */
.c_login {
    position: relative;
}

/* Chưa đăng nhập */
.c_login .c_btn_dn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.c_login .login-btn {
    background: var(--primary);
    color: white !important;
    border-color: var(--primary);
}

.c_login .register-btn {
    background: var(--secondary);
    color: white !important;
    border-color: var(--secondary);
}

.c_login .c_btn_dn:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}

/* Đã đăng nhập - User info dropdown */
.user-info-dropdown {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 15px;
    background: var(--bg-light);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    min-width: 180px;
}

.user-info-dropdown:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-light);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.user-avatar i {
    font-size: 16px;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 3px;
}

.user-balance {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    color: var(--text-muted);
}

.user-balance i {
    color: #f39c12;
    font-size: 12px;
}

.dropdown-arrow {
    color: var(--text-muted);
    font-size: 12px;
    transition: var(--transition);
}

.c_login.dropdown-active .dropdown-arrow {
    transform: rotate(180deg);
    color: var(--primary);
}

/* User dropdown menu */
.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 5px);
    right: 0;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-dropdown);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1001;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.c_login.dropdown-active .user-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.user-dropdown-menu a:last-child {
    border-bottom: none;
}

.user-dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--primary);
}

.user-dropdown-menu a i {
    width: 18px;
    text-align: center;
    color: var(--primary);
}

.user-dropdown-menu .logout-btn {
    color: var(--accent) !important;
}

.user-dropdown-menu .logout-btn:hover {
    background: rgba(231, 76, 60, 0.1);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 5px 0;
}

/* ====== FUNCTION BUTTON ====== */
.c_dky_dn {
    display: flex;
    align-items: center;
}

#c_nap_gg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    color: white;
    font-weight: 600;
    font-size: 14px;
    padding: 10px 20px;
    border-radius: var(--border-radius-sm);
    border: none;
    transition: var(--transition);
    white-space: nowrap;
}

#c_nap_gg:hover {
    background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}

#c_nap_gg img {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
}

.btn-text {
    display: inline;
}

/* ====== MOBILE MENU BUTTON ====== */
.mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    margin-left: 10px;
}

.mobile-menu-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.mobile-menu-btn i {
    font-size: 20px;
}

/* ====== MOBILE MENU ====== */
.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-mobile-menu);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 999;
    transform: translateX(100%);
    transition: var(--transition-slow);
    overflow-y: auto;
    padding: 20px;
    display: none;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-content {
    max-width: 400px;
    margin: 0 auto;
}

.mobile-user-info {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 20px;
    text-align: center;
}

.mobile-avatar {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
}

.mobile-avatar i {
    font-size: 24px;
}

.mobile-user-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.mobile-balance {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 15px;
    border-radius: 20px;
}

.mobile-balance i {
    color: #f1c40f;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-menu-links a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    font-weight: 500;
}

.mobile-menu-links a:hover {
    background: var(--bg-light);
    transform: translateX(5px);
    color: var(--primary);
    border-color: var(--primary-light);
}

.mobile-menu-links a i {
    width: 20px;
    color: var(--primary);
}

.mobile-menu-links .logout-btn {
    color: var(--accent) !important;
    border-color: var(--accent-light);
}

.mobile-menu-links .logout-btn:hover {
    background: rgba(231, 76, 60, 0.1);
}

.mobile-menu-links .login-btn {
    background: var(--primary);
    color: white !important;
    border-color: var(--primary);
}

.mobile-menu-links .register-btn {
    background: var(--secondary);
    color: white !important;
    border-color: var(--secondary);
}

/* ====== RESPONSIVE DESIGN ====== */
@media (max-width: 1024px) {
    .wrap {
        padding: 0 15px;
    }
    
    .c_logo img {
        height: 45px;
        max-width: 180px;
    }
    
    .c_menu li a {
        padding: 10px 15px;
        font-size: 13px;
    }
    
    .user-info-dropdown {
        min-width: 160px;
    }
}

@media (max-width: 900px) {
    .header-center {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
}

@media (max-width: 768px) {
    .h_chung {
        min-height: 60px;
    }
    
    .c_header {
        min-height: 60px;
    }
    
    .c_logo {
        height: 60px;
    }
    
    .c_logo img {
        height: 40px;
        max-width: 160px;
    }
    
    /* Ẩn desktop user info và function button trên mobile */
    .c_login,
    .c_dky_dn {
        display: none;
    }
    
    .mobile-menu.active {
        display: block;
    }
}

@media (max-width: 480px) {
    .wrap {
        padding: 0 10px;
    }
    
    .c_logo img {
        height: 35px;
        max-width: 140px;
    }
    
    .mobile-menu {
        padding: 15px;
    }
    
    .mobile-user-info {
        padding: 15px;
    }
    
    .mobile-menu-links a {
        padding: 12px 15px;
        font-size: 14px;
    }
}

/* ====== UTILITY CLASSES ====== */
.m_hiden {
    display: none !important;
}

.row-end {
    clear: both;
    font: 1px/1px sans-serif;
    height: 1px;
    overflow: hidden;
}

/* ====== BODY SCROLL LOCK ====== */
body.menu-open {
    overflow: hidden;
}

/* ====== SMOOTH ANIMATIONS ====== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.h_chung {
    animation: fadeIn 0.5s ease;
}

/* ====== ACTIVE MENU ITEM ====== */
.c_menu li a.active {
    background: var(--primary);
    color: white;
}

.c_menu li a.active:hover {
    background: var(--primary-dark);
    color: white;
}