/*
Theme Name: VN88 Link Mới
Theme URI: https://vn88.com
Author: VN88 Team
Author URI: https://vn88.com
Description: Chủ đề WordPress chính thức cho VN88 - Link vào VN88 mới nhất 2026. Cung cấp thông tin chi tiết về nhà cái VN88, các trò chơi cá cược, khuyến mãi và hướng dẫn đăng ký.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: vn88-link-moi
Tags: casino, betting, gaming, sports, entertainment
*/

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background: linear-gradient(135deg, #1a237e 0%, #0d47a1 100%);
    color: #fff;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo img {
    height: 50px;
    width: auto;
}

/* Navigation */
.nav-desktop {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-desktop a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-desktop a:hover {
    background-color: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

/* Header Actions - Login/Register Buttons */
.header-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

.login-btn {
    background: transparent;
    border: 2px solid #fff;
    color: #fff;
    padding: 10px 25px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.login-btn:hover {
    background: #fff;
    color: #1a237e;
    transform: translateY(-2px);
}

.register-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: 2px solid transparent;
    color: #fff;
    padding: 10px 25px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.register-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
}

.nav-mobile {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #1a237e;
    list-style: none;
    padding: 20px;
    box-shadow: 0 5px 10px rgba(0,0,0,0.2);
    z-index: 999;
}

.nav-mobile.active {
    display: block;
}

.nav-mobile-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-mobile-list li {
    margin-bottom: 15px;
}

.nav-mobile-list a {
    color: #fff;
    text-decoration: none;
    display: block;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.nav-mobile-list a:hover {
    background-color: rgba(255,255,255,0.2);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.2em;
    max-width: 800px;
    margin: 0 auto 30px;
}

/* Content Sections */
.content-section {
    background: #fff;
    padding: 60px 0;
    margin: 20px 0;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.section-title {
    font-size: 2.5em;
    color: #1a237e;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: #667eea;
    margin: 15px auto;
}

/* Grid Layout */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
}

.card h3 {
    color: #1a237e;
    margin-bottom: 15px;
    font-size: 1.5em;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1em;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* Footer */
footer {
    background: #1a237e;
    color: #fff;
    padding: 40px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h4 {
    font-size: 1.3em;
    margin-bottom: 20px;
    color: #667eea;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #667eea;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }
    
    .nav-desktop {
        display: none;
    }
    
    .menu-toggle {
        display: block;
        order: 2;
        z-index: 1001;
    }
    
    .header-actions {
        display: none;
    }
    
    .nav-mobile {
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        z-index: 999;
        display: none;
    }
    
    .nav-mobile.active {
        display: block;
    }
    
    .hero h1 {
        font-size: 2em;
    }
    
    .hero p {
        font-size: 1em;
    }
    
    .section-title {
        font-size: 2em;
    }
    
    .grid-container {
        grid-template-columns: 1fr;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    margin-bottom: 20px;
}

p {
    margin-bottom: 20px;
}

ul, ol {
    padding-left: 30px;
}

/* Links */
a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #764ba2;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    background: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background: #1a237e;
    color: #fff;
    font-weight: 600;
}

tr:hover {
    background: #f5f5f5;
}

/* Forms */
input, textarea, select {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
    transition: border-color 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #667eea;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.highlight {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 2px 10px;
    border-radius: 3px;
}