/*
Theme Name: K8 Theme
Theme URI: https://k8.com
Author: K8 Team
Author URI: https://k8.com
Description: K8 Casino Theme - Link vao K8 khong bi chan
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: k8-theme
*/

/* ============================================
   CSS RESET & BASE
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background-color: #0a0a0a;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.section-image {
    text-align: center;
    margin-bottom: 60px;
}

.section-image img {
    display: inline-block;
    max-width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.game-image {
    margin-bottom: 20px;
    text-align: center;
}

.game-image img {
    display: inline-block;
    width: 100%;
    border-radius: 10px;
}

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

/* ============================================
   HEADER STYLES
   ============================================ */
.site-header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

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

.site-branding {
    font-size: 1.8rem;
    font-weight: 700;
    color: #ffd700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.main-navigation {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-menu a {
    color: #ffffff;
    font-weight: 500;
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a:focus {
    background-color: #ffd700;
    color: #0a0a0a;
}

.nav-menu .current-menu-item a {
    background-color: #ffd700;
    color: #0a0a0a;
}

.auth-buttons {
    display: flex;
    gap: 15px;
    margin-left: 30px;
}

.btn-login,
.btn-register {
    padding: 10px 25px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-login {
    background-color: transparent;
    border: 2px solid #ffd700;
    color: #ffd700;
}

.btn-login:hover {
    background-color: #ffd700;
    color: #0a0a0a;
}

.btn-register {
    background: linear-gradient(135deg, #ffd700 0%, #ffaa00 100%);
    color: #0a0a0a;
    border: 2px solid #ffd700;
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 215, 0, 0.4);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f0f23 50%, #16213e 100%);
    padding: 150px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(255, 170, 0, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffd700 0%, #ffaa00 50%, #ffd700 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: #cccccc;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, #ffd700 0%, #ffaa00 100%);
    color: #0a0a0a;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.4);
}

.btn-secondary {
    display: inline-block;
    padding: 15px 40px;
    background: transparent;
    color: #ffd700;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid #ffd700;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-secondary:hover {
    background-color: #ffd700;
    color: #0a0a0a;
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section {
    padding: 80px 0;
}

.section-alt {
    background-color: #111122;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #ffd700;
    text-transform: uppercase;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #aaaaaa;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   FEATURES GRID
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    border: 1px solid rgba(255, 215, 0, 0.2);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: #ffd700;
    box-shadow: 0 20px 40px rgba(255, 215, 0, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffd700;
}

.feature-desc {
    color: #aaaaaa;
    line-height: 1.8;
}

/* ============================================
   GAMES GRID
   ============================================ */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.game-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(255, 215, 0, 0.2);
    transition: all 0.3s ease;
}

.game-card:hover {
    transform: translateY(-10px);
    border-color: #ffd700;
    box-shadow: 0 20px 40px rgba(255, 215, 0, 0.2);
}

.game-content {
    padding: 30px;
}

.game-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffd700;
}

.game-desc {
    color: #aaaaaa;
    margin-bottom: 20px;
    line-height: 1.8;
}

.game-features {
    margin-top: 20px;
}

.game-features li {
    padding: 8px 0;
    color: #cccccc;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.game-features li:last-child {
    border-bottom: none;
}

/* ============================================
   TIMELINE
   ============================================ */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, #ffd700 0%, #ffaa00 100%);
}

.timeline-item {
    position: relative;
    padding: 20px 0;
}

.timeline-content {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 30px;
    border-radius: 15px;
    width: 45%;
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: auto;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background-color: #ffd700;
    border-radius: 50%;
    top: 30px;
}

.timeline-year {
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffd700;
    margin-bottom: 10px;
}

.timeline-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.timeline-desc {
    color: #aaaaaa;
    line-height: 1.8;
}

/* ============================================
   FAQ
   ============================================ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 10px;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 215, 0, 0.2);
    overflow: hidden;
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background-color: rgba(255, 215, 0, 0.1);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: #ffd700;
    transition: all 0.3s ease;
}

.faq-item.active .faq-question::after {
    content: '-';
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 30px 25px;
    max-height: 500px;
}

.faq-answer p {
    color: #aaaaaa;
    line-height: 1.8;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, #ffd700 0%, #ffaa00 100%);
    padding: 80px 0;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #0a0a0a;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.cta-desc {
    font-size: 1.2rem;
    color: #333333;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-btn {
    display: inline-block;
    padding: 18px 50px;
    background-color: #0a0a0a;
    color: #ffd700;
    font-weight: 700;
    font-size: 1.2rem;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* ============================================
   LOGIN PAGE SPECIFIC
   ============================================ */
.login-section {
    padding: 150px 0 100px;
    background: linear-gradient(135deg, #1a1a2e 0%, #0f0f23 100%);
}

.login-container {
    max-width: 500px;
    margin: 0 auto;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 50px;
    border-radius: 20px;
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.login-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: #ffd700;
    text-transform: uppercase;
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: #cccccc;
}

.form-input {
    width: 100%;
    padding: 15px 20px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 10px;
    color: #ffffff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: #ffd700;
    background-color: rgba(255, 215, 0, 0.05);
}

.form-submit {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #ffd700 0%, #ffaa00 100%);
    color: #0a0a0a;
    font-weight: 700;
    font-size: 1.1rem;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.3);
}

.login-links {
    text-align: center;
    margin-top: 25px;
}

.login-links a {
    color: #ffd700;
    margin: 0 15px;
}

.login-links a:hover {
    text-decoration: underline;
}

/* ============================================
   STEPS
   ============================================ */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.step-card {
    text-align: center;
    padding: 40px 30px;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ffd700 0%, #ffaa00 100%);
    color: #0a0a0a;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.step-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffd700;
}

.step-desc {
    color: #aaaaaa;
    line-height: 1.8;
}

/* ============================================
   PROMO CARDS
   ============================================ */
.promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.promo-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 15px;
    padding: 40px;
    border: 1px solid rgba(255, 215, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.promo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #ffd700 0%, #ffaa00 100%);
}

.promo-badge {
    display: inline-block;
    padding: 8px 20px;
    background-color: #ffd700;
    color: #0a0a0a;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 20px;
    margin-bottom: 20px;
}

.promo-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #ffffff;
}

.promo-desc {
    color: #aaaaaa;
    margin-bottom: 25px;
    line-height: 1.8;
}

.promo-value {
    font-size: 2rem;
    font-weight: 700;
    color: #ffd700;
    margin-bottom: 25px;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.contact-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    border: 1px solid rgba(255, 215, 0, 0.2);
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-10px);
    border-color: #ffd700;
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #ffd700 0%, #ffaa00 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2rem;
}

.contact-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffd700;
}

.contact-info {
    color: #aaaaaa;
    line-height: 1.8;
}

/* ============================================
   TIPS BOX
   ============================================ */
.tips-box {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(255, 170, 0, 0.1) 100%);
    border-left: 4px solid #ffd700;
    padding: 30px;
    border-radius: 0 10px 10px 0;
    margin: 30px 0;
}

.tips-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #ffd700;
    margin-bottom: 15px;
}

.tips-list li {
    padding: 10px 0;
    color: #cccccc;
    padding-left: 25px;
    position: relative;
}

.tips-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #ffd700;
    font-weight: 700;
}

/* ============================================
   WARNING BOX
   ============================================ */
.warning-box {
    background: linear-gradient(135deg, rgba(255, 0, 0, 0.1) 0%, rgba(255, 100, 0, 0.1) 100%);
    border-left: 4px solid #ff4444;
    padding: 30px;
    border-radius: 0 10px 10px 0;
    margin: 30px 0;
}

.warning-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #ff4444;
    margin-bottom: 15px;
}

/* ============================================
   CONTENT STYLES
   ============================================ */
.content-section {
    padding: 150px 0 80px;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.content-wrapper h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    color: #ffd700;
    text-transform: uppercase;
}

.content-wrapper h2 {
    font-size: 1.8rem;
    font-weight: 600;
    margin: 40px 0 20px;
    color: #ffd700;
}

.content-wrapper h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 30px 0 15px;
    color: #ffaa00;
}

.content-wrapper p {
    color: #cccccc;
    line-height: 1.9;
    margin-bottom: 20px;
}

.content-wrapper ul,
.content-wrapper ol {
    margin: 20px 0;
    padding-left: 30px;
}

.content-wrapper li {
    color: #cccccc;
    line-height: 1.9;
    margin-bottom: 10px;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 100%);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 215, 0, 0.2);
}

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

.footer-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffd700;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.footer-desc {
    color: #888888;
    line-height: 1.8;
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #ffd700;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #888888;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: #ffd700;
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-copyright {
    color: #666666;
    margin-bottom: 15px;
}

.footer-seo-text {
    color: #555555;
    font-size: 0.9rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .main-navigation {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
        padding: 20px;
        transform: translateY(-150%);
        transition: all 0.3s ease;
        flex-direction: column;
    }
    
    .main-navigation.active {
        transform: translateY(0);
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 10px;
        width: 100%;
    }
    
    .auth-buttons {
        margin-left: 0;
        margin-top: 20px;
        width: 100%;
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-content {
        width: calc(100% - 60px);
        margin-left: 60px !important;
    }
    
    .timeline-dot {
        left: 20px;
    }
    
    .login-container {
        padding: 30px 20px;
        margin: 0 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .feature-card,
    .game-card,
    .promo-card {
        padding: 30px 20px;
    }
}