/**
 * BGWin Casino - Main Stylesheet
 * Mobile-first responsive design for Philippine market
 * @version 1.0.0
 */

/* CSS Variables */
:root {
    --s83b-primary: #FFD700;
    --s83b-primary-dark: #DAA520;
    --s83b-secondary: #1a1a2e;
    --s83b-accent: #e94560;
    --s83b-bg-dark: #0f0f1a;
    --s83b-bg-card: #16213e;
    --s83b-bg-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f0f1a 100%);
    --s83b-text-light: #ffffff;
    --s83b-text-muted: #a0a0a0;
    --s83b-border-color: rgba(255, 215, 0, 0.2);
    --s83b-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --s83b-shadow-gold: 0 0 20px rgba(255, 215, 0, 0.3);
    --s83b-radius: 12px;
    --s83b-radius-sm: 8px;
    --s83b-transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: var(--s83b-bg-dark);
    color: var(--s83b-text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--s83b-transition);
}

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

/* Container */
.s83b-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header */
.s83b-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--s83b-border-color);
    transition: var(--s83b-transition);
}

.s83b-header.s83b-scrolled {
    background: rgba(15, 15, 26, 0.98);
    box-shadow: var(--s83b-shadow);
}

.s83b-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 15px;
    max-width: 1200px;
    margin: 0 auto;
}

.s83b-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.s83b-logo-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.s83b-logo-text {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--s83b-primary), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.s83b-header-actions {
    display: flex;
    gap: 10px;
}

.s83b-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: var(--s83b-radius-sm);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    border: none;
    transition: var(--s83b-transition);
}

.s83b-btn-primary {
    background: linear-gradient(135deg, var(--s83b-primary), var(--s83b-primary-dark));
    color: var(--s83b-secondary);
    box-shadow: var(--s83b-shadow-gold);
}

.s83b-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
}

.s83b-btn-outline {
    background: transparent;
    color: var(--s83b-primary);
    border: 2px solid var(--s83b-primary);
}

.s83b-btn-outline:hover {
    background: var(--s83b-primary);
    color: var(--s83b-secondary);
}

.s83b-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--s83b-text-light);
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

/* Hero Section */
.s83b-hero {
    background: var(--s83b-bg-gradient);
    padding: 100px 15px 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.s83b-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/83b625fa_1.jpg') center/cover no-repeat;
    opacity: 0.15;
}

.s83b-hero-content {
    position: relative;
    z-index: 1;
}

.s83b-hero-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--s83b-primary), #fff, var(--s83b-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.s83b-hero-subtitle {
    font-size: 16px;
    color: var(--s83b-text-muted);
    margin-bottom: 25px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.s83b-hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.s83b-hero-buttons .s83b-btn {
    padding: 14px 30px;
    font-size: 16px;
}

/* Section Styles */
.s83b-section {
    padding: 50px 15px;
}

.s83b-section-title {
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 30px;
    color: var(--s83b-primary);
}

.s83b-section-subtitle {
    text-align: center;
    color: var(--s83b-text-muted);
    margin-bottom: 30px;
    font-size: 15px;
}

/* Category Tabs */
.s83b-category-tabs {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding: 10px 0;
    margin-bottom: 25px;
    -webkit-overflow-scrolling: touch;
}

.s83b-category-tabs::-webkit-scrollbar {
    display: none;
}

.s83b-cat-tab {
    flex-shrink: 0;
    padding: 10px 20px;
    background: var(--s83b-bg-card);
    border: 1px solid var(--s83b-border-color);
    border-radius: 25px;
    color: var(--s83b-text-muted);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--s83b-transition);
    white-space: nowrap;
}

.s83b-cat-tab:hover,
.s83b-cat-tab.s83b-active {
    background: var(--s83b-primary);
    color: var(--s83b-secondary);
    border-color: var(--s83b-primary);
}

/* Games Grid */
.s83b-games-grid {
    display: none;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.s83b-games-grid.s83b-active {
    display: grid;
}

.s83b-game-card {
    background: var(--s83b-bg-card);
    border-radius: var(--s83b-radius);
    overflow: hidden;
    cursor: pointer;
    transition: var(--s83b-transition);
    border: 1px solid var(--s83b-border-color);
}

.s83b-game-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--s83b-shadow-gold);
    border-color: var(--s83b-primary);
}

.s83b-game-img {
    aspect-ratio: 1;
    object-fit: cover;
    width: 100%;
}

.s83b-game-name {
    padding: 10px;
    font-size: 12px;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Features Grid */
.s83b-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.s83b-feature-card {
    background: var(--s83b-bg-card);
    border-radius: var(--s83b-radius);
    padding: 20px;
    text-align: center;
    border: 1px solid var(--s83b-border-color);
    transition: var(--s83b-transition);
}

.s83b-feature-card:hover {
    border-color: var(--s83b-primary);
    transform: translateY(-3px);
}

.s83b-feature-icon {
    font-size: 36px;
    color: var(--s83b-primary);
    margin-bottom: 12px;
}

.s83b-feature-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.s83b-feature-desc {
    font-size: 13px;
    color: var(--s83b-text-muted);
    line-height: 1.5;
}

/* Promo Banner */
.s83b-promo-banner {
    background: linear-gradient(135deg, var(--s83b-accent), #ff6b6b);
    border-radius: var(--s83b-radius);
    padding: 25px;
    text-align: center;
    margin: 30px 0;
}

.s83b-promo-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
}

.s83b-promo-desc {
    font-size: 14px;
    margin-bottom: 15px;
    opacity: 0.9;
}

/* Footer */
.s83b-footer {
    background: var(--s83b-secondary);
    padding: 40px 15px 100px;
    border-top: 1px solid var(--s83b-border-color);
}

.s83b-footer-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-bottom: 30px;
}

.s83b-footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--s83b-primary);
    margin-bottom: 15px;
}

.s83b-footer-links {
    list-style: none;
}

.s83b-footer-links li {
    margin-bottom: 10px;
}

.s83b-footer-links a {
    color: var(--s83b-text-muted);
    font-size: 14px;
}

.s83b-footer-links a:hover {
    color: var(--s83b-primary);
}

.s83b-footer-partners {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    padding: 20px 0;
    border-top: 1px solid var(--s83b-border-color);
    border-bottom: 1px solid var(--s83b-border-color);
    margin-bottom: 20px;
}

.s83b-partner-logo {
    height: 30px;
    opacity: 0.7;
    filter: grayscale(100%);
    transition: var(--s83b-transition);
}

.s83b-partner-logo:hover {
    opacity: 1;
    filter: grayscale(0%);
}

.s83b-footer-copyright {
    text-align: center;
    font-size: 13px;
    color: var(--s83b-text-muted);
}

/* Mobile Bottom Navigation */
.s83b-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(22, 33, 62, 0.98);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--s83b-border-color);
    display: flex;
    justify-content: space-around;
    padding: 8px 0;
}

.s83b-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    min-height: 56px;
    cursor: pointer;
    transition: var(--s83b-transition);
    border-radius: 10px;
    padding: 5px;
}

.s83b-nav-item:hover,
.s83b-nav-item.s83b-active {
    background: rgba(255, 215, 0, 0.1);
}

.s83b-nav-item:hover .s83b-nav-icon,
.s83b-nav-item.s83b-active .s83b-nav-icon {
    color: var(--s83b-primary);
    transform: scale(1.1);
}

.s83b-nav-icon {
    font-size: 22px;
    color: var(--s83b-text-muted);
    margin-bottom: 4px;
    transition: var(--s83b-transition);
}

.s83b-nav-text {
    font-size: 11px;
    color: var(--s83b-text-muted);
    transition: var(--s83b-transition);
}

.s83b-nav-item:hover .s83b-nav-text,
.s83b-nav-item.s83b-active .s83b-nav-text {
    color: var(--s83b-primary);
}

/* Mobile Menu */
.s83b-mobile-menu {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100vh;
    background: var(--s83b-secondary);
    z-index: 9999;
    transition: var(--s83b-transition);
    overflow-y: auto;
    padding: 20px;
}

.s83b-mobile-menu.s83b-active {
    left: 0;
}

.s83b-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: var(--s83b-transition);
}

.s83b-menu-overlay.s83b-active {
    opacity: 1;
    visibility: visible;
}

.s83b-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--s83b-border-color);
}

.s83b-menu-close {
    background: transparent;
    border: none;
    color: var(--s83b-text-light);
    font-size: 24px;
    cursor: pointer;
}

.s83b-menu-links {
    list-style: none;
}

.s83b-menu-links li {
    margin-bottom: 5px;
}

.s83b-menu-links a {
    display: block;
    padding: 12px 15px;
    color: var(--s83b-text-light);
    font-size: 15px;
    border-radius: var(--s83b-radius-sm);
    transition: var(--s83b-transition);
}

.s83b-menu-links a:hover {
    background: rgba(255, 215, 0, 0.1);
    color: var(--s83b-primary);
}

/* Back to Top */
.s83b-back-to-top {
    position: fixed;
    bottom: 80px;
    right: 15px;
    width: 45px;
    height: 45px;
    background: var(--s83b-primary);
    color: var(--s83b-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--s83b-transition);
    z-index: 999;
    box-shadow: var(--s83b-shadow-gold);
}

.s83b-back-to-top.s83b-visible {
    opacity: 1;
    visibility: visible;
}

.s83b-back-to-top:hover {
    transform: translateY(-5px);
}

/* Accordion */
.s83b-accordion-item {
    background: var(--s83b-bg-card);
    border-radius: var(--s83b-radius-sm);
    margin-bottom: 10px;
    border: 1px solid var(--s83b-border-color);
    overflow: hidden;
}

.s83b-accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 18px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--s83b-transition);
}

.s83b-accordion-header:hover {
    background: rgba(255, 215, 0, 0.05);
}

.s83b-accordion-icon {
    font-size: 18px;
    color: var(--s83b-primary);
    transition: var(--s83b-transition);
}

.s83b-accordion-item.s83b-active .s83b-accordion-icon {
    transform: rotate(180deg);
}

.s83b-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.s83b-accordion-body {
    padding: 0 18px 18px;
    color: var(--s83b-text-muted);
    font-size: 14px;
    line-height: 1.7;
}

/* VIP Section */
.s83b-vip-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.s83b-vip-card {
    background: linear-gradient(135deg, var(--s83b-bg-card), rgba(255, 215, 0, 0.1));
    border-radius: var(--s83b-radius);
    padding: 20px;
    border: 1px solid var(--s83b-border-color);
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: var(--s83b-transition);
}

.s83b-vip-card:hover {
    border-color: var(--s83b-primary);
    transform: translateX(5px);
}

.s83b-vip-icon {
    width: 50px;
    height: 50px;
    background: var(--s83b-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.s83b-vip-content h4 {
    font-size: 15px;
    margin-bottom: 5px;
}

.s83b-vip-content p {
    font-size: 13px;
    color: var(--s83b-text-muted);
}

/* Payment Methods */
.s83b-payment-methods {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin: 20px 0;
}

.s83b-payment-item {
    background: var(--s83b-bg-card);
    border-radius: var(--s83b-radius-sm);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--s83b-border-color);
    transition: var(--s83b-transition);
}

.s83b-payment-item:hover {
    border-color: var(--s83b-primary);
}

.s83b-payment-icon {
    font-size: 24px;
    color: var(--s83b-primary);
}

.s83b-payment-name {
    font-size: 14px;
    font-weight: 500;
}

/* Main content padding for mobile nav */
@media (max-width: 768px) {
    main {
        padding-bottom: 80px;
    }
}

/* Desktop Styles */
@media (min-width: 769px) {
    .s83b-bottom-nav {
        display: none;
    }

    .s83b-menu-toggle {
        display: block;
    }

    .s83b-hero {
        padding: 120px 20px 80px;
    }

    .s83b-hero-title {
        font-size: 48px;
    }

    .s83b-hero-subtitle {
        font-size: 18px;
    }

    .s83b-games-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 20px;
    }

    .s83b-features-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }

    .s83b-footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .s83b-footer {
        padding-bottom: 40px;
    }

    .s83b-section {
        padding: 70px 20px;
    }

    .s83b-section-title {
        font-size: 32px;
    }

    .s83b-vip-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .s83b-back-to-top {
        bottom: 30px;
    }
}

/* Large Desktop */
@media (min-width: 1024px) {
    .s83b-games-grid {
        grid-template-columns: repeat(6, 1fr);
    }

    .s83b-container {
        padding: 0 30px;
    }
}