/**
 * i8club CSS Design System
 * All classes use ui81- prefix for namespace isolation
 * Color Palette: #BA55D3 | #CC99FF | #2C3E50
 */

/* CSS Variables */
:root {
    /* Primary Colors */
    --ui81-primary: #BA55D3;
    --ui81-primary-light: #CC99FF;
    --ui81-primary-dark: #9333EA;

    /* Background Colors */
    --ui81-bg-dark: #2C3E50;
    --ui81-bg-darker: #1A252F;
    --ui81-bg-light: #34495E;
    --ui81-bg-lighter: #4A5F7F;

    /* Text Colors */
    --ui81-text-primary: #FFFFFF;
    --ui81-text-secondary: #E8E8E8;
    --ui81-text-muted: #B8B8B8;
    --ui81-text-accent: #CC99FF;

    /* Status Colors */
    --ui81-success: #10B981;
    --ui81-warning: #F59E0B;
    --ui81-error: #EF4444;
    --ui81-info: #3B82F6;

    /* Spacing */
    --ui81-spacing-xs: 0.25rem;
    --ui81-spacing-sm: 0.5rem;
    --ui81-spacing-md: 1rem;
    --ui81-spacing-lg: 1.5rem;
    --ui81-spacing-xl: 2rem;
    --ui81-spacing-2xl: 3rem;

    /* Border Radius */
    --ui81-radius-sm: 0.25rem;
    --ui81-radius-md: 0.5rem;
    --ui81-radius-lg: 0.75rem;
    --ui81-radius-xl: 1rem;

    /* Shadows */
    --ui81-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --ui81-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --ui81-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --ui81-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --ui81-transition-fast: 0.15s ease;
    --ui81-transition-normal: 0.3s ease;
    --ui81-transition-slow: 0.5s ease;
}

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

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 1.6rem;
    line-height: 1.5;
    color: var(--ui81-text-primary);
    background-color: var(--ui81-bg-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    max-width: 430px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
}

/* Container and Layout */
.ui81-container {
    width: 100%;
    max-width: 430px;
    margin: 0 auto;
    padding: 0 var(--ui81-spacing-md);
}

.ui81-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-bottom: 80px; /* Space for bottom navigation */
}

.ui81-grid {
    display: grid;
    gap: var(--ui81-spacing-md);
}

.ui81-flex {
    display: flex;
}

.ui81-flex-col {
    flex-direction: column;
}

.ui81-flex-center {
    align-items: center;
    justify-content: center;
}

.ui81-flex-between {
    justify-content: space-between;
}

.ui81-flex-wrap {
    flex-wrap: wrap;
}

/* Header Styles */
.ui81-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--ui81-bg-darker), var(--ui81-bg-dark));
    border-bottom: 2px solid var(--ui81-primary);
    z-index: 1000;
    transition: all var(--ui81-transition-normal);
    backdrop-filter: blur(10px);
    max-width: 430px;
    margin: 0 auto;
}

.ui81-header-scrolled {
    box-shadow: var(--ui81-shadow-lg);
}

.ui81-header-hidden {
    transform: translateY(-100%);
}

.ui81-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--ui81-spacing-sm) var(--ui81-spacing-md);
    height: 56px;
}

.ui81-logo {
    display: flex;
    align-items: center;
    gap: var(--ui81-spacing-sm);
    text-decoration: none;
    color: var(--ui81-text-primary);
}

.ui81-logo-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.ui81-logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--ui81-primary-light);
}

.ui81-nav-buttons {
    display: flex;
    gap: var(--ui81-spacing-sm);
}

/* Button Styles */
.ui81-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--ui81-spacing-sm) var(--ui81-spacing-md);
    font-size: 1.4rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--ui81-radius-md);
    cursor: pointer;
    transition: all var(--ui81-transition-fast);
    position: relative;
    overflow: hidden;
    min-height: 44px;
    min-width: 44px;
}

.ui81-btn-primary {
    background: linear-gradient(135deg, var(--ui81-primary), var(--ui81-primary-dark));
    color: var(--ui81-text-primary);
    box-shadow: var(--ui81-shadow-md);
}

.ui81-btn-primary:hover {
    background: linear-gradient(135deg, var(--ui81-primary-light), var(--ui81-primary));
    transform: translateY(-2px);
    box-shadow: var(--ui81-shadow-lg);
}

.ui81-btn-secondary {
    background: transparent;
    color: var(--ui81-primary-light);
    border: 2px solid var(--ui81-primary);
}

.ui81-btn-secondary:hover {
    background: var(--ui81-primary);
    color: var(--ui81-text-primary);
    transform: translateY(-2px);
}

.ui81-hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--ui81-spacing-xs);
    background: transparent;
    border: none;
    cursor: pointer;
}

.ui81-hamburger span {
    width: 24px;
    height: 2px;
    background: var(--ui81-text-primary);
    transition: all var(--ui81-transition-fast);
}

.ui81-hamburger.ui81-active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.ui81-hamburger.ui81-active span:nth-child(2) {
    opacity: 0;
}

.ui81-hamburger.ui81-active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Menu */
.ui81-mobile-menu {
    position: fixed;
    top: 56px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 56px);
    background: linear-gradient(180deg, var(--ui81-bg-dark), var(--ui81-bg-darker));
    z-index: 999;
    transition: left var(--ui81-transition-normal);
    overflow-y: auto;
    max-width: 430px;
}

.ui81-menu-open {
    left: 0;
}

.ui81-menu-list {
    list-style: none;
    padding: var(--ui81-spacing-md);
}

.ui81-menu-item {
    margin-bottom: var(--ui81-spacing-sm);
}

.ui81-menu-link {
    display: block;
    padding: var(--ui81-spacing-md);
    color: var(--ui81-text-primary);
    text-decoration: none;
    border-radius: var(--ui81-radius-md);
    transition: all var(--ui81-transition-fast);
    font-weight: 500;
}

.ui81-menu-link:hover {
    background: var(--ui81-primary);
    color: var(--ui81-text-primary);
    transform: translateX(4px);
}

/* Bottom Navigation */
.ui81-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, var(--ui81-bg-darker), var(--ui81-bg-dark));
    border-top: 2px solid var(--ui81-primary);
    z-index: 1000;
    display: flex;
    justify-content: space-around;
    height: 64px;
    max-width: 430px;
    margin: 0 auto;
}

.ui81-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    text-decoration: none;
    color: var(--ui81-text-secondary);
    transition: all var(--ui81-transition-fast);
    position: relative;
    min-height: 60px;
    min-width: 60px;
}

.ui81-nav-item:hover {
    color: var(--ui81-primary-light);
    transform: scale(1.05);
}

.ui81-nav-item.ui81-active {
    color: var(--ui81-primary);
}

.ui81-nav-icon {
    font-size: 24px;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ui81-nav-text {
    font-size: 1.0rem;
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
}

/* Main Content */
main {
    flex: 1;
    padding-top: 56px; /* Space for fixed header */
}

.ui81-section {
    padding: var(--ui81-spacing-lg) 0;
}

.ui81-section-title {
    font-size: 2.0rem;
    font-weight: 700;
    color: var(--ui81-primary-light);
    margin-bottom: var(--ui81-spacing-md);
    text-align: center;
}

.ui81-section-subtitle {
    font-size: 1.4rem;
    color: var(--ui81-text-secondary);
    text-align: center;
    margin-bottom: var(--ui81-spacing-lg);
}

/* Carousel */
.ui81-carousel {
    position: relative;
    width: 100%;
    height: 200px;
    border-radius: var(--ui81-radius-lg);
    overflow: hidden;
    margin-bottom: var(--ui81-spacing-lg);
}

.ui81-slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity var(--ui81-transition-normal);
    cursor: pointer;
}

.ui81-slide.ui81-active {
    opacity: 1;
}

.ui81-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ui81-carousel-dots {
    position: absolute;
    bottom: var(--ui81-spacing-md);
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: var(--ui81-spacing-sm);
}

.ui81-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ui81-text-muted);
    opacity: 0.6;
    transition: all var(--ui81-transition-fast);
    cursor: pointer;
}

.ui81-dot.ui81-active {
    opacity: 1;
    background: var(--ui81-primary);
    transform: scale(1.2);
}

/* Game Grid */
.ui81-game-category {
    margin-bottom: var(--ui81-spacing-xl);
}

.ui81-category-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--ui81-primary-light);
    margin-bottom: var(--ui81-spacing-md);
    padding-left: var(--ui81-spacing-sm);
    border-left: 4px solid var(--ui81-primary);
}

.ui81-game-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--ui81-spacing-sm);
}

.ui81-game-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--ui81-text-primary);
    transition: all var(--ui81-transition-fast);
    border-radius: var(--ui81-radius-md);
    padding: var(--ui81-spacing-sm);
    cursor: pointer;
}

.ui81-game-item:hover {
    background: var(--ui81-bg-light);
    transform: scale(1.05);
}

.ui81-game-icon {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--ui81-radius-sm);
    margin-bottom: var(--ui81-spacing-xs);
    box-shadow: var(--ui81-shadow-sm);
}

.ui81-game-name {
    font-size: 1.0rem;
    text-align: center;
    line-height: 1.2;
    word-break: break-word;
    font-weight: 500;
}

/* Card Styles */
.ui81-card {
    background: var(--ui81-bg-light);
    border-radius: var(--ui81-radius-lg);
    padding: var(--ui81-spacing-lg);
    margin-bottom: var(--ui81-spacing-lg);
    box-shadow: var(--ui81-shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.ui81-card-title {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--ui81-primary-light);
    margin-bottom: var(--ui81-spacing-md);
}

.ui81-card-content {
    color: var(--ui81-text-secondary);
    line-height: 1.6;
}

/* List Styles */
.ui81-list {
    list-style: none;
}

.ui81-list-item {
    padding: var(--ui81-spacing-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ui81-list-item:last-child {
    border-bottom: none;
}

/* Accordion */
.ui81-accordion-group {
    margin-bottom: var(--ui81-spacing-lg);
}

.ui81-accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--ui81-spacing-md);
    background: var(--ui81-bg-light);
    border-radius: var(--ui81-radius-md);
    cursor: pointer;
    transition: all var(--ui81-transition-fast);
    font-weight: 600;
    color: var(--ui81-primary-light);
}

.ui81-accordion-header:hover {
    background: var(--ui81-bg-lighter);
}

.ui81-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--ui81-transition-normal);
    color: var(--ui81-text-secondary);
}

.ui81-accordion-content.ui81-expanded {
    max-height: 500px;
    padding: var(--ui81-spacing-md);
}

/* Footer */
.ui81-footer {
    background: var(--ui81-bg-darker);
    padding: var(--ui81-spacing-xl) 0;
    border-top: 2px solid var(--ui81-primary);
    margin-top: auto;
}

.ui81-partners {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--ui81-spacing-sm);
    margin-bottom: var(--ui81-spacing-lg);
}

.ui81-partner-logo {
    width: 100%;
    height: 40px;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all var(--ui81-transition-fast);
}

.ui81-partner-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
}

.ui81-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ui81-spacing-md);
    justify-content: center;
    margin-bottom: var(--ui81-spacing-lg);
}

.ui81-footer-link {
    color: var(--ui81-text-secondary);
    text-decoration: none;
    font-size: 1.2rem;
    transition: color var(--ui81-transition-fast);
}

.ui81-footer-link:hover {
    color: var(--ui81-primary);
}

.ui81-copyright {
    text-align: center;
    color: var(--ui81-text-muted);
    font-size: 1.2rem;
    padding-top: var(--ui81-spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Animations */
.ui81-animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--ui81-transition-slow);
}

.ui81-animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Ripple Effect */
.ui81-ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Loading Spinner */
.ui81-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid var(--ui81-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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

.ui81-loading {
    pointer-events: none;
    opacity: 0.6;
}

/* Utility Classes */
.ui81-text-center {
    text-align: center;
}

.ui81-text-primary {
    color: var(--ui81-primary);
}

.ui81-text-secondary {
    color: var(--ui81-text-secondary);
}

.ui81-text-muted {
    color: var(--ui81-text-muted);
}

.ui81-bg-primary {
    background-color: var(--ui81-primary);
}

.ui81-bg-secondary {
    background-color: var(--ui81-bg-light);
}

.ui81-rounded {
    border-radius: var(--ui81-radius-md);
}

.ui81-rounded-lg {
    border-radius: var(--ui81-radius-lg);
}

.ui81-shadow {
    box-shadow: var(--ui81-shadow-md);
}

.ui81-hidden {
    display: none;
}

/* Responsive Design */
@media (min-width: 769px) {
    .ui81-bottom-nav {
        display: none;
    }

    .ui81-wrapper {
        padding-bottom: 0;
    }

    body {
        max-width: none;
    }

    .ui81-header {
        max-width: none;
    }

    .ui81-mobile-menu {
        max-width: none;
    }

    .ui81-bottom-nav {
        max-width: none;
    }
}

@media (max-width: 768px) {
    .ui81-hamburger {
        display: flex;
    }

    .ui81-game-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .ui81-partners {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .ui81-container {
        padding: 0 var(--ui81-spacing-sm);
    }

    .ui81-game-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}