/* ===============================================
   SlotOnline Casino - Main Stylesheet
   =============================================== */

/* Reset และ Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Kanit', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header Styles */
.header {
    background: rgba(0, 0, 0, 0.95);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.logo {
    color: #ffd700;
    font-size: 28px;
    font-weight: 700;
    text-decoration: none;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
}

.logo:hover {
    color: #ffed4e;
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 15px;
    align-items: center;
}

.nav-item {
    color: #fff;
    text-decoration: none;
    padding: 10px 18px;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    transition: left 0.3s ease;
    z-index: -1;
}

.nav-item:hover::before {
    left: 0;
}

.nav-item:hover {
    color: #000;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.4);
}

/* Button Styles */
.btn-primary {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    color: #000;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #ffed4e, #ffd700);
    transition: left 0.3s ease;
    z-index: -1;
}

.btn-primary:hover::before {
    left: 0;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.5);
}

.btn-secondary {
    background: linear-gradient(45deg, #28a745, #20c997);
    color: #fff;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(40, 167, 69, 0.4);
    background: linear-gradient(45deg, #20c997, #28a745);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="%23667eea" width="100" height="100"/><circle fill="%23764ba2" cx="20" cy="20" r="10" opacity="0.3"/><circle fill="%23ffd700" cx="80" cy="80" r="15" opacity="0.2"/></svg>');
    background-size: cover;
    background-position: center;
    padding: 80px 0;
    text-align: center;
    color: #fff;
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="none" width="100" height="100"/><circle fill="%23ffd700" cx="10" cy="10" r="2" opacity="0.6"><animate attributeName="opacity" values="0.6;1;0.6" dur="2s" repeatCount="indefinite"/></circle><circle fill="%23ffd700" cx="90" cy="20" r="1.5" opacity="0.4"><animate attributeName="opacity" values="0.4;0.8;0.4" dur="3s" repeatCount="indefinite"/></circle><circle fill="%23ffd700" cx="30" cy="80" r="1" opacity="0.5"><animate attributeName="opacity" values="0.5;1;0.5" dur="2.5s" repeatCount="indefinite"/></circle></svg>');
    background-size: 200px 200px;
    animation: sparkle 10s linear infinite;
    pointer-events: none;
}

@keyframes sparkle {
    0% { background-position: 0 0; }
    100% { background-position: 200px 200px; }
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5);
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: #fff;
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, rgba(102, 126, 234, 0.1), transparent);
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #333;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 60px;
    color: #667eea;
    margin-bottom: 25px;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    color: #764ba2;
}

.feature-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.feature-description {
    color: #666;
    line-height: 1.6;
}

/* Games Section */
.games-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 50px;
}

.game-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.game-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.game-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    position: relative;
    overflow: hidden;
}

.game-image::before {
    content: '🎰';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
    opacity: 0.8;
}

.game-content {
    padding: 20px;
}

.game-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}

.game-description {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.game-btn {
    width: 100%;
    background: linear-gradient(45deg, #28a745, #20c997);
    color: #fff;
    padding: 10px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.game-btn:hover {
    background: linear-gradient(45deg, #20c997, #28a745);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #333 0%, #222 100%);
    color: #fff;
    padding: 60px 0 20px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, #ffd700, transparent);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .nav-menu {
        justify-content: center;
        gap: 15px;
    }
    
    .nav-item {
        padding: 8px 15px;
        font-size: 14px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 15px 30px;
        font-size: 16px;
        width: 200px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .games-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.animate {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.animate {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.animate {
    opacity: 1;
    transform: translateX(0);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #ffd700;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}