/**
 * BlueStacks Club - Main Stylesheet
 * Version: 1.0.0
 * Prefix: ui4f-
 * Colors: Background #34495E, Text #FA8072, Accent1 #F0E68C, Accent2 #FFC0CB, Accent3 #FFCCCB
 */

/* CSS Variables */
:root {
    --ui4f-bg-primary: #34495E;
    --ui4f-bg-secondary: #2C3E50;
    --ui4f-bg-dark: #1A252F;
    --ui4f-text-primary: #FA8072;
    --ui4f-text-secondary: #ECF0F1;
    --ui4f-text-light: #BDC3C7;
    --ui4f-accent-1: #F0E68C;
    --ui4f-accent-2: #FFC0CB;
    --ui4f-accent-3: #FFCCCB;
    --ui4f-gradient-primary: linear-gradient(135deg, #34495E 0%, #2C3E50 100%);
    --ui4f-gradient-accent: linear-gradient(135deg, #F0E68C 0%, #FFC0CB 100%);
    --ui4f-shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --ui4f-shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --ui4f-shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
    --ui4f-radius-sm: 8px;
    --ui4f-radius-md: 12px;
    --ui4f-radius-lg: 20px;
    --ui4f-radius-full: 50px;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--ui4f-bg-primary);
    color: var(--ui4f-text-secondary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

/* Header */
.ui4f-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--ui4f-bg-secondary);
    padding: 12px 16px;
    transition: all 0.3s ease;
}

.ui4f-header-scrolled {
    background: rgba(44, 62, 80, 0.98);
    box-shadow: var(--ui4f-shadow-md);
}

.ui4f-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ui4f-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ui4f-logo-icon {
    width: 40px;
    height: 40px;
    background: var(--ui4f-gradient-accent);
    border-radius: var(--ui4f-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.ui4f-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ui4f-accent-1);
}

.ui4f-nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ui4f-btn {
    padding: 10px 20px;
    border-radius: var(--ui4f-radius-full);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.ui4f-btn-primary {
    background: var(--ui4f-gradient-accent);
    color: var(--ui4f-bg-dark);
}

.ui4f-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(240, 230, 140, 0.4);
}

.ui4f-btn-secondary {
    background: transparent;
    border: 2px solid var(--ui4f-accent-1);
    color: var(--ui4f-accent-1);
}

.ui4f-btn-secondary:hover {
    background: var(--ui4f-accent-1);
    color: var(--ui4f-bg-dark);
}

.ui4f-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--ui4f-accent-1);
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

/* Desktop Navigation */
.ui4f-desktop-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.ui4f-nav-link {
    color: var(--ui4f-text-secondary);
    font-weight: 500;
    position: relative;
}

.ui4f-nav-link:hover {
    color: var(--ui4f-accent-1);
}

.ui4f-nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--ui4f-accent-1);
    transition: width 0.3s ease;
}

.ui4f-nav-link:hover::after {
    width: 100%;
}

/* Mobile Menu */
.ui4f-mobile-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 280px;
    height: 100vh;
    background: var(--ui4f-bg-dark);
    z-index: 9999;
    padding: 80px 20px 20px;
    transition: right 0.3s ease;
    overflow-y: auto;
}

.ui4f-mobile-menu.app54f-active {
    right: 0;
}

.ui4f-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: all 0.3s ease;
}

.ui4f-menu-overlay.app54f-active {
    opacity: 1;
    visibility: visible;
}

.ui4f-mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ui4f-mobile-nav-item {
    padding: 14px 16px;
    border-radius: var(--ui4f-radius-sm);
    background: var(--ui4f-bg-secondary);
    color: var(--ui4f-text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.ui4f-mobile-nav-item:hover {
    background: var(--ui4f-accent-1);
    color: var(--ui4f-bg-dark);
}

/* Main Content */
.ui4f-main {
    padding-top: 70px;
}

@media (max-width: 768px) {
    .ui4f-main {
        padding-bottom: 80px;
    }
}

/* Hero Carousel */
.ui4f-hero {
    position: relative;
    height: 280px;
    overflow: hidden;
}

@media (min-width: 769px) {
    .ui4f-hero {
        height: 450px;
    }
}

.ui4f-carousel {
    position: relative;
    width: 100%;
    height: 100%;
}

.ui4f-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: all 0.6s ease;
}

.ui4f-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ui4f-slide-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px 20px;
    background: linear-gradient(to top, rgba(26, 37, 47, 0.95), transparent);
}

.ui4f-slide-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ui4f-accent-1);
    margin-bottom: 8px;
}

@media (min-width: 769px) {
    .ui4f-slide-title {
        font-size: 2.2rem;
    }
}

.ui4f-slide-desc {
    font-size: 0.9rem;
    color: var(--ui4f-text-light);
}

.ui4f-dots {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.app54f-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
}

.app54f-dot.app54f-active {
    background: var(--ui4f-accent-1);
    transform: scale(1.2);
}

/* Section Styles */
.ui4f-section {
    padding: 40px 16px;
}

@media (min-width: 769px) {
    .ui4f-section {
        padding: 60px 24px;
    }
}

.ui4f-section-header {
    text-align: center;
    margin-bottom: 30px;
}

.ui4f-section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--ui4f-accent-1);
    margin-bottom: 10px;
}

@media (min-width: 769px) {
    .ui4f-section-title {
        font-size: 2.2rem;
    }
}

.ui4f-section-subtitle {
    font-size: 1rem;
    color: var(--ui4f-text-light);
}

/* Tab Navigation */
.ui4f-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 24px;
}

.app54f-tab-btn {
    padding: 10px 18px;
    border-radius: var(--ui4f-radius-full);
    background: var(--ui4f-bg-secondary);
    border: none;
    color: var(--ui4f-text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.app54f-tab-btn:hover,
.app54f-tab-btn.app54f-active {
    background: var(--ui4f-accent-1);
    color: var(--ui4f-bg-dark);
}

/* Game Grid */
.ui4f-game-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

@media (min-width: 480px) {
    .ui4f-game-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
}

@media (min-width: 769px) {
    .ui4f-game-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 20px;
    }
}

@media (min-width: 1024px) {
    .ui4f-game-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

.ui4f-game-card {
    position: relative;
    border-radius: var(--ui4f-radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--ui4f-bg-secondary);
}

.ui4f-game-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--ui4f-shadow-lg);
}

.ui4f-game-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.ui4f-game-name {
    padding: 10px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
    color: var(--ui4f-text-secondary);
    background: var(--ui4f-bg-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ui4f-game-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 3px 8px;
    background: var(--ui4f-text-primary);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: var(--ui4f-radius-sm);
}

/* Feature Cards */
.ui4f-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 480px) {
    .ui4f-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 769px) {
    .ui4f-features {
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
}

.ui4f-feature-card {
    background: var(--ui4f-bg-secondary);
    border-radius: var(--ui4f-radius-md);
    padding: 24px 16px;
    text-align: center;
    transition: all 0.3s ease;
}

.ui4f-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--ui4f-shadow-md);
}

.ui4f-feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    background: var(--ui4f-gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.ui4f-feature-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ui4f-accent-1);
    margin-bottom: 8px;
}

.ui4f-feature-desc {
    font-size: 0.85rem;
    color: var(--ui4f-text-light);
    line-height: 1.5;
}

/* Content Box */
.ui4f-content-box {
    background: var(--ui4f-bg-secondary);
    border-radius: var(--ui4f-radius-md);
    padding: 24px;
    margin-bottom: 20px;
}

.ui4f-content-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--ui4f-accent-1);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--ui4f-bg-primary);
}

.ui4f-content-text {
    color: var(--ui4f-text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.ui4f-content-list {
    padding-left: 20px;
}

.ui4f-content-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    color: var(--ui4f-text-secondary);
}

.ui4f-content-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--ui4f-accent-1);
    border-radius: 50%;
}

/* Promo Banner */
.ui4f-promo-banner {
    background: var(--ui4f-gradient-accent);
    border-radius: var(--ui4f-radius-md);
    padding: 24px;
    text-align: center;
    margin: 30px 0;
}

.ui4f-promo-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ui4f-bg-dark);
    margin-bottom: 12px;
}

.ui4f-promo-desc {
    color: var(--ui4f-bg-secondary);
    margin-bottom: 16px;
}

/* Accordion */
.app54f-accordion-item {
    background: var(--ui4f-bg-secondary);
    border-radius: var(--ui4f-radius-md);
    margin-bottom: 12px;
    overflow: hidden;
}

.app54f-accordion-header {
    padding: 18px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    color: var(--ui4f-text-secondary);
    transition: all 0.3s ease;
}

.app54f-accordion-header:hover,
.app54f-accordion-header.app54f-active {
    color: var(--ui4f-accent-1);
    background: rgba(240, 230, 140, 0.1);
}

.app54f-accordion-icon {
    font-size: 20px;
    transition: transform 0.3s ease;
}

.app54f-accordion-header.app54f-active .app54f-accordion-icon {
    transform: rotate(180deg);
}

.app54f-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.app54f-accordion-body {
    padding: 0 20px 18px;
    color: var(--ui4f-text-light);
    line-height: 1.7;
}

/* Footer */
.ui4f-footer {
    background: var(--ui4f-bg-dark);
    padding: 40px 16px 20px;
}

.ui4f-footer-top {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (min-width: 769px) {
    .ui4f-footer-top {
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
    }
}

.ui4f-footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.ui4f-footer-desc {
    color: var(--ui4f-text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

.ui4f-footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ui4f-accent-1);
    margin-bottom: 16px;
}

.ui4f-footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ui4f-footer-link {
    color: var(--ui4f-text-light);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.ui4f-footer-link:hover {
    color: var(--ui4f-accent-1);
}

.ui4f-partner-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
}

.ui4f-partner-logo {
    height: 30px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.ui4f-partner-logo:hover {
    opacity: 1;
}

.ui4f-footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.ui4f-copyright {
    color: var(--ui4f-text-light);
    font-size: 0.85rem;
}

/* Mobile Bottom Navigation */
.ui4f-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: linear-gradient(to top, var(--ui4f-bg-dark), var(--ui4f-bg-secondary));
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    border-top: 2px solid var(--ui4f-accent-1);
}

@media (min-width: 769px) {
    .ui4f-bottom-nav {
        display: none;
    }
}

.ui4f-nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    min-height: 60px;
    padding: 8px;
    background: none;
    border: none;
    color: var(--ui4f-text-light);
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: var(--ui4f-radius-md);
}

.ui4f-nav-btn:hover,
.ui4f-nav-btn.ui4f-active {
    color: var(--ui4f-accent-1);
    background: rgba(240, 230, 140, 0.1);
}

.ui4f-nav-btn .ui4f-nav-icon {
    font-size: 24px;
    margin-bottom: 4px;
}

.ui4f-nav-btn .ui4f-nav-label {
    font-size: 10px;
    font-weight: 500;
}

/* Back to Top Button */
#app54fBackToTop {
    position: fixed;
    bottom: 80px;
    right: 16px;
    width: 48px;
    height: 48px;
    background: var(--ui4f-accent-1);
    color: var(--ui4f-bg-dark);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--ui4f-shadow-md);
}

#app54fBackToTop.app54f-visible {
    opacity: 1;
    visibility: visible;
}

#app54fBackToTop:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(240, 230, 140, 0.4);
}

@media (min-width: 769px) {
    #app54fBackToTop {
        bottom: 30px;
    }
}

/* Tab Content Visibility */
.app54f-tab-content {
    display: none;
}

.app54f-tab-content.app54f-active {
    display: block;
}

/* Responsive Header */
@media (max-width: 768px) {
    .ui4f-menu-toggle {
        display: block;
    }

    .ui4f-desktop-nav {
        display: none;
    }

    .ui4f-header {
        padding: 10px 12px;
    }

    .ui4f-btn {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    .ui4f-nav-actions {
        gap: 8px;
    }
}

@media (min-width: 769px) {
    .ui4f-header-inner {
        padding: 0 24px;
    }
}

/* Utility Classes */
.ui4f-text-center {
    text-align: center;
}

.ui4f-text-accent {
    color: var(--ui4f-accent-1);
}

.ui4f-mb-20 {
    margin-bottom: 20px;
}

.ui4f-mt-20 {
    margin-top: 20px;
}