/**
 * EZJili Website Design System
 * Mobile-first gaming platform styles
 */

/* CSS Variables for consistent theming */
:root {
    /* Color palette */
    --gb4c-primary: #FFCC33;
    --gb4c-secondary: #40E0D0;
    --gb4c-accent: #DEB887;
    --gb4c-muted: #BDB76B;
    --gb4c-gray: #A9A9A9;
    --gb4c-dark: #0C0C0C;
    --gb4c-light: #F5F5F5;
    --gb4c-white: #FFFFFF;
    --gb4c-black: #000000;

    /* Background colors */
    --gb4c-bg-primary: #0C0C0C;
    --gb4c-bg-secondary: #1A1A1A;
    --gb4c-bg-card: #2A2A2A;

    /* Text colors */
    --gb4c-text-primary: #FFFFFF;
    --gb4c-text-secondary: #A9A9A9;
    --gb4c-text-muted: #808080;
    --gb4c-text-accent: #FFCC33;

    /* Spacing */
    --gb4c-spacing-xs: 0.4rem;
    --gb4c-spacing-sm: 0.8rem;
    --gb4c-spacing-md: 1.6rem;
    --gb4c-spacing-lg: 2.4rem;
    --gb4c-spacing-xl: 3.2rem;

    /* Typography */
    --gb4c-font-size-xs: 1.0rem;
    --gb4c-font-size-sm: 1.2rem;
    --gb4c-font-size-base: 1.4rem;
    --gb4c-font-size-lg: 1.6rem;
    --gb4c-font-size-xl: 1.8rem;
    --gb4c-font-size-2xl: 2.2rem;
    --gb4c-font-size-3xl: 2.8rem;

    /* Layout */
    --gb4c-max-width: 43rem;
    --gb4c-header-height: 6rem;
    --gb4c-bottom-nav-height: 6.4rem;
    --gb4c-border-radius: 0.8rem;
    --gb4c-border-radius-lg: 1.2rem;

    /* Transitions */
    --gb4c-transition: all 0.3s ease;
    --gb4c-transition-fast: all 0.15s ease;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: var(--gb4c-font-size-base);
    line-height: 1.5;
    color: var(--gb4c-text-primary);
    background-color: var(--gb4c-bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Utility classes */
.gb4c-container {
    max-width: var(--gb4c-max-width);
    margin: 0 auto;
    padding: 0 var(--gb4c-spacing-sm);
}

.gb4c-wrapper {
    min-height: 100vh;
    padding-bottom: var(--gb4c-bottom-nav-height);
}

.gb4c-grid {
    display: grid;
    gap: var(--gb4c-spacing-sm);
}

.gb4c-flex {
    display: flex;
}

.gb4c-flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.gb4c-flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.gb4c-text-center {
    text-align: center;
}

.gb4c-text-left {
    text-align: left;
}

.gb4c-text-right {
    text-align: right;
}

.gb4c-mb-sm { margin-bottom: var(--gb4c-spacing-sm); }
.gb4c-mb-md { margin-bottom: var(--gb4c-spacing-md); }
.gb4c-mb-lg { margin-bottom: var(--gb4c-spacing-lg); }

.gb4c-mt-sm { margin-top: var(--gb4c-spacing-sm); }
.gb4c-mt-md { margin-top: var(--gb4c-spacing-md); }
.gb4c-mt-lg { margin-top: var(--gb4c-spacing-lg); }

/* Header */
.gb4c-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--gb4c-header-height);
    background: linear-gradient(135deg, var(--gb4c-bg-secondary) 0%, var(--gb4c-bg-primary) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.gb4c-header-content {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--gb4c-spacing-md);
}

.gb4c-logo {
    display: flex;
    align-items: center;
    gap: var(--gb4c-spacing-sm);
    text-decoration: none;
    color: var(--gb4c-text-primary);
}

.gb4c-logo-icon {
    width: 2.8rem;
    height: 2.8rem;
    background: var(--gb4c-primary);
    border-radius: var(--gb4c-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--gb4c-dark);
}

.gb4c-logo-text {
    font-size: var(--gb4c-font-size-xl);
    font-weight: 700;
    color: var(--gb4c-text-accent);
}

.gb4c-header-actions {
    display: flex;
    align-items: center;
    gap: var(--gb4c-spacing-sm);
}

.gb4c-btn {
    padding: var(--gb4c-spacing-sm) var(--gb4c-spacing-md);
    border: none;
    border-radius: var(--gb4c-border-radius);
    font-size: var(--gb4c-font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--gb4c-transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 4rem;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.gb4c-btn-primary {
    background: linear-gradient(135deg, var(--gb4c-primary) 0%, var(--gb4c-accent) 100%);
    color: var(--gb4c-dark);
}

.gb4c-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 204, 51, 0.3);
}

.gb4c-btn-secondary {
    background: transparent;
    color: var(--gb4c-text-primary);
    border: 2px solid var(--gb4c-secondary);
}

.gb4c-btn-secondary:hover {
    background: var(--gb4c-secondary);
    color: var(--gb4c-dark);
}

.gb4c-menu-btn {
    width: 4rem;
    height: 4rem;
    background: transparent;
    border: none;
    color: var(--gb4c-text-primary);
    font-size: var(--gb4c-font-size-xl);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Mobile menu */
.gb4c-mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 32rem;
    height: 100vh;
    background: var(--gb4c-bg-secondary);
    z-index: 9999;
    transition: var(--gb4c-transition);
    overflow-y: auto;
    padding: var(--gb4c-spacing-lg);
}

.gb4c-menu-active {
    right: 0;
}

.gb4c-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: var(--gb4c-transition);
}

.gb4c-overlay-active {
    opacity: 1;
    visibility: visible;
}

.gb4c-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--gb4c-spacing-lg);
}

.gb4c-menu-title {
    font-size: var(--gb4c-font-size-xl);
    font-weight: 700;
    color: var(--gb4c-text-accent);
}

.gb4c-menu-close {
    width: 3.2rem;
    height: 3.2rem;
    background: transparent;
    border: none;
    color: var(--gb4c-text-primary);
    font-size: var(--gb4c-font-size-xl);
    cursor: pointer;
}

.gb4c-menu-list {
    list-style: none;
}

.gb4c-menu-item {
    margin-bottom: var(--gb4c-spacing-sm);
}

.gb4c-menu-link {
    display: block;
    padding: var(--gb4c-spacing-sm) 0;
    color: var(--gb4c-text-primary);
    text-decoration: none;
    font-size: var(--gb4c-font-size-base);
    transition: var(--gb4c-transition-fast);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.gb4c-menu-link:hover {
    color: var(--gb4c-primary);
    padding-left: var(--gb4c-spacing-sm);
}

/* Main content */
.gb4c-main {
    padding-top: var(--gb4c-header-height);
}

.gb4c-section {
    padding: var(--gb4c-spacing-lg) 0;
}

.gb4c-section-title {
    font-size: var(--gb4c-font-size-2xl);
    font-weight: 700;
    color: var(--gb4c-text-accent);
    margin-bottom: var(--gb4c-spacing-md);
    text-align: center;
}

/* Carousel */
.gb4c-carousel {
    position: relative;
    overflow: hidden;
    border-radius: var(--gb4c-border-radius-lg);
    margin-bottom: var(--gb4c-spacing-lg);
}

.gb4c-carousel-inner {
    display: flex;
    transition: transform 0.5s ease;
}

.gb4c-slide {
    min-width: 100%;
    position: relative;
    cursor: pointer;
}

.gb4c-slide img {
    width: 100%;
    height: auto;
    display: block;
}

.gb4c-slide-active {
    opacity: 1;
}

.gb4c-carousel-indicators {
    position: absolute;
    bottom: var(--gb4c-spacing-sm);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--gb4c-spacing-xs);
}

.gb4c-indicator {
    width: 0.8rem;
    height: 0.8rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--gb4c-transition-fast);
}

.gb4c-indicator-active {
    background: var(--gb4c-primary);
    transform: scale(1.2);
}

/* Game cards */
.gb4c-game-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
    gap: var(--gb4c-spacing-sm);
}

.gb4c-game-card {
    background: var(--gb4c-bg-card);
    border-radius: var(--gb4c-border-radius);
    overflow: hidden;
    transition: var(--gb4c-transition);
    cursor: pointer;
    text-align: center;
}

.gb4c-game-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(255, 204, 51, 0.2);
}

.gb4c-game-image {
    width: 100%;
    height: 8rem;
    object-fit: cover;
    background: var(--gb4c-bg-secondary);
}

.gb4c-game-name {
    padding: var(--gb4c-spacing-xs);
    font-size: var(--gb4c-font-size-xs);
    color: var(--gb4c-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Feature cards */
.gb4c-feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gb4c-spacing-md);
}

.gb4c-feature-card {
    background: var(--gb4c-bg-card);
    border-radius: var(--gb4c-border-radius-lg);
    padding: var(--gb4c-spacing-md);
    transition: var(--gb4c-transition);
}

.gb4c-feature-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.gb4c-feature-icon {
    width: 4.8rem;
    height: 4.8rem;
    background: linear-gradient(135deg, var(--gb4c-primary) 0%, var(--gb4c-secondary) 100%);
    border-radius: var(--gb4c-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--gb4c-spacing-sm);
    font-size: var(--gb4c-font-size-xl);
    color: var(--gb4c-dark);
}

.gb4c-feature-title {
    font-size: var(--gb4c-font-size-lg);
    font-weight: 600;
    color: var(--gb4c-text-accent);
    margin-bottom: var(--gb4c-spacing-xs);
}

.gb4c-feature-text {
    color: var(--gb4c-text-secondary);
    font-size: var(--gb4c-font-size-sm);
    line-height: 1.6;
}

/* Bottom navigation */
.gb4c-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--gb4c-bottom-nav-height);
    background: var(--gb4c-bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: var(--gb4c-spacing-xs) 0;
}

.gb4c-bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 5.6rem;
    cursor: pointer;
    transition: var(--gb4c-transition-fast);
    text-decoration: none;
    color: var(--gb4c-text-secondary);
}

.gb4c-bottom-nav-item:hover {
    transform: scale(1.1);
}

.gb4c-nav-active {
    color: var(--gb4c-primary);
}

.gb4c-nav-icon {
    font-size: 2.4rem;
    margin-bottom: 0.2rem;
}

.gb4c-nav-label {
    font-size: 1rem;
    font-weight: 500;
}

/* Footer */
.gb4c-footer {
    background: var(--gb4c-bg-secondary);
    padding: var(--gb4c-spacing-lg) 0 var(--gb4c-spacing-md);
    margin-top: var(--gb4c-spacing-lg);
}

.gb4c-footer-content {
    text-align: center;
}

.gb4c-footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--gb4c-spacing-md);
    margin-bottom: var(--gb4c-spacing-md);
}

.gb4c-footer-link {
    color: var(--gb4c-text-secondary);
    text-decoration: none;
    font-size: var(--gb4c-font-size-sm);
    transition: var(--gb4c-transition-fast);
}

.gb4c-footer-link:hover {
    color: var(--gb4c-primary);
}

.gb4c-partners {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--gb4c-spacing-md);
    margin-bottom: var(--gb4c-spacing-md);
}

.gb4c-partner-logo {
    width: 6rem;
    height: 3rem;
    object-fit: contain;
    filter: grayscale(100%) brightness(150%);
    opacity: 0.7;
    transition: var(--gb4c-transition);
}

.gb4c-partner-logo:hover {
    filter: grayscale(0%) brightness(100%);
    opacity: 1;
}

.gb4c-copyright {
    color: var(--gb4c-text-muted);
    font-size: var(--gb4c-font-size-xs);
}

/* Tooltip */
.gb4c-tooltip {
    position: absolute;
    background: var(--gb4c-dark);
    color: var(--gb4c-white);
    padding: var(--gb4c-spacing-xs) var(--gb4c-spacing-sm);
    border-radius: var(--gb4c-border-radius);
    font-size: var(--gb4c-font-size-xs);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--gb4c-transition-fast);
    z-index: 100;
}

.gb4c-tooltip-visible {
    opacity: 1;
    visibility: visible;
}

/* Lazy loading */
.gb4c-lazy {
    opacity: 0;
    transition: opacity 0.3s;
}

.gb4c-lazy-loaded {
    opacity: 1;
}

/* Responsive design */
@media (max-width: 768px) {
    .gb4c-bottom-nav {
        display: flex;
    }

    .gb4c-main {
        padding-bottom: var(--gb4c-bottom-nav-height);
    }
}

@media (min-width: 769px) {
    .gb4c-bottom-nav {
        display: none;
    }

    .gb4c-game-grid {
        grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
    }

    .gb4c-feature-grid {
        grid-template-columns: repeat(auto-fit, minmax(30rem, 1fr));
    }
}

/* Animations */
@keyframes gb4c-fadeIn {
    from {
        opacity: 0;
        transform: translateY(2rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gb4c-fade-in {
    animation: gb4c-fadeIn 0.5s ease-out;
}

@keyframes gb4c-pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.gb4c-pulse {
    animation: gb4c-pulse 2s infinite;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles */
.gb4c-btn:focus,
.gb4c-menu-btn:focus,
.gb4c-menu-link:focus,
.gb4c-game-card:focus {
    outline: 2px solid var(--gb4c-primary);
    outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --gb4c-bg-primary: #000000;
        --gb4c-bg-secondary: #111111;
        --gb4c-text-primary: #FFFFFF;
        --gb4c-text-secondary: #CCCCCC;
    }
}