/**
 * Okfun App - Main Stylesheet
 * Version: 1.0.0
 * All classes use prefix 'uide-' for namespace isolation
 * Color Palette: #262626 | #BF360C | #708090 | #778899
 */

/* CSS Variables */
:root {
    --uide-primary: #BF360C;
    --uide-secondary: #708090;
    --uide-accent: #778899;
    --uide-bg-dark: #262626;
    --uide-bg-darker: #1a1a1a;
    --uide-bg-card: #2d2d2d;
    --uide-text-light: #f5f5f5;
    --uide-text-muted: #b0b0b0;
    --uide-border: #3d3d3d;
    --uide-gradient-primary: linear-gradient(135deg, #BF360C 0%, #ff5722 100%);
    --uide-gradient-card: linear-gradient(180deg, #2d2d2d 0%, #262626 100%);
    --uide-shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
    --uide-shadow-md: 0 4px 8px rgba(0,0,0,0.4);
    --uide-shadow-lg: 0 8px 16px rgba(0,0,0,0.5);
    --uide-radius-sm: 4px;
    --uide-radius-md: 8px;
    --uide-radius-lg: 12px;
    --uide-radius-xl: 16px;
}

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

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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', sans-serif;
    background-color: var(--uide-bg-dark);
    color: var(--uide-text-light);
    line-height: 1.5rem;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: var(--uide-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #ff5722;
}

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

/* Container */
.uide-container {
    width: 100%;
    max-width: 430px;
    margin: 0 auto;
    padding: 0 1.2rem;
}

.uide-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.uide-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(180deg, var(--uide-bg-darker) 0%, rgba(26,26,26,0.95) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--uide-border);
    transition: all 0.3s ease;
}

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

.uide-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 1.2rem;
    max-width: 430px;
    margin: 0 auto;
}

.uide-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.uide-logo img {
    width: 32px;
    height: 32px;
    border-radius: var(--uide-radius-sm);
}

.uide-logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--uide-text-light);
    background: var(--uide-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.uide-header-actions {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.uide-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.2rem;
    border-radius: var(--uide-radius-md);
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
}

.uide-btn-primary {
    background: var(--uide-gradient-primary);
    color: var(--uide-text-light);
    box-shadow: var(--uide-shadow-sm);
}

.uide-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--uide-shadow-md);
    color: var(--uide-text-light);
}

.uide-btn-outline {
    background: transparent;
    color: var(--uide-text-light);
    border: 1px solid var(--uide-border);
}

.uide-btn-outline:hover {
    background: var(--uide-bg-card);
    border-color: var(--uide-primary);
    color: var(--uide-text-light);
}

/* Hamburger Menu */
.uide-hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    cursor: pointer;
    padding: 0;
    background: none;
    border: none;
}

.uide-hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--uide-text-light);
    border-radius: 2px;
    transition: all 0.3s ease;
}

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

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

.uide-hamburger-active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.uide-mobile-menu {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    background: var(--uide-bg-darker);
    z-index: 9999;
    transition: right 0.3s ease;
    overflow-y: auto;
    padding: 6rem 1.6rem 2rem;
}

.uide-menu-open {
    right: 0;
}

.uide-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;
}

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

.uide-nav-list {
    list-style: none;
}

.uide-nav-item {
    margin-bottom: 0.4rem;
}

.uide-nav-link {
    display: block;
    padding: 1rem 1.2rem;
    color: var(--uide-text-light);
    font-size: 1.4rem;
    border-radius: var(--uide-radius-md);
    transition: all 0.3s ease;
}

.uide-nav-link:hover {
    background: var(--uide-bg-card);
    color: var(--uide-primary);
}

/* Main Content */
.uide-main {
    flex: 1;
    padding-top: 5.6rem;
}

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

/* Hero Carousel */
.uide-carousel {
    position: relative;
    overflow: hidden;
    border-radius: 0 0 var(--uide-radius-lg) var(--uide-radius-lg);
}

.uide-slides-container {
    position: relative;
    height: 200px;
}

.uide-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
    cursor: pointer;
}

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

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

.uide-slide-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.uide-slide-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.uide-dot-active {
    background: var(--uide-primary);
    width: 20px;
    border-radius: 4px;
}

/* Section Styles */
.uide-section {
    padding: 2rem 1.2rem;
}

.uide-section-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    color: var(--uide-text-light);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.uide-section-title i {
    color: var(--uide-primary);
}

/* Game Grid */
.uide-game-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
}

.uide-game-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--uide-bg-card);
    border-radius: var(--uide-radius-md);
    padding: 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--uide-border);
}

.uide-game-card:hover {
    transform: translateY(-4px);
    border-color: var(--uide-primary);
    box-shadow: var(--uide-shadow-md);
}

.uide-game-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--uide-radius-md);
    margin-bottom: 0.6rem;
    object-fit: cover;
}

.uide-game-name {
    font-size: 1rem;
    color: var(--uide-text-light);
    text-align: center;
    line-height: 1.2;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Category Tabs */
.uide-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.uide-view-all {
    font-size: 1.2rem;
    color: var(--uide-primary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* Info Cards */
.uide-info-card {
    background: var(--uide-gradient-card);
    border-radius: var(--uide-radius-lg);
    padding: 1.6rem;
    margin-bottom: 1.2rem;
    border: 1px solid var(--uide-border);
}

.uide-info-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--uide-text-light);
}

.uide-info-card p {
    font-size: 1.3rem;
    color: var(--uide-text-muted);
    line-height: 1.6;
}

.uide-info-card ul {
    list-style: none;
    padding: 0;
}

.uide-info-card li {
    padding: 0.6rem 0;
    font-size: 1.3rem;
    color: var(--uide-text-muted);
    border-bottom: 1px solid var(--uide-border);
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
}

.uide-info-card li:last-child {
    border-bottom: none;
}

.uide-info-card li i {
    color: var(--uide-primary);
    margin-top: 0.2rem;
}

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

.uide-feature-item {
    background: var(--uide-bg-card);
    border-radius: var(--uide-radius-md);
    padding: 1.2rem;
    text-align: center;
    border: 1px solid var(--uide-border);
    transition: all 0.3s ease;
}

.uide-feature-item:hover {
    border-color: var(--uide-primary);
}

.uide-feature-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 0.8rem;
    background: var(--uide-gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.uide-feature-icon i {
    font-size: 2rem;
    color: var(--uide-text-light);
}

.uide-feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--uide-text-light);
    margin-bottom: 0.4rem;
}

.uide-feature-desc {
    font-size: 1.1rem;
    color: var(--uide-text-muted);
}

/* Promotional Banner */
.uide-promo-banner {
    background: var(--uide-gradient-primary);
    border-radius: var(--uide-radius-lg);
    padding: 1.6rem;
    text-align: center;
    margin: 1.2rem 0;
}

.uide-promo-banner h3 {
    font-size: 1.6rem;
    color: var(--uide-text-light);
    margin-bottom: 0.8rem;
}

.uide-promo-banner p {
    font-size: 1.3rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 1rem;
}

/* FAQ Section */
.uide-faq-item {
    background: var(--uide-bg-card);
    border-radius: var(--uide-radius-md);
    margin-bottom: 0.8rem;
    overflow: hidden;
    border: 1px solid var(--uide-border);
}

.uide-faq-question {
    padding: 1.2rem;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--uide-text-light);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.uide-faq-answer {
    padding: 0 1.2rem 1.2rem;
    font-size: 1.3rem;
    color: var(--uide-text-muted);
    line-height: 1.6;
}

/* Footer */
.uide-footer {
    background: var(--uide-bg-darker);
    padding: 2rem 1.2rem;
    border-top: 1px solid var(--uide-border);
}

.uide-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 1.6rem;
}

.uide-footer-link {
    font-size: 1.2rem;
    color: var(--uide-text-muted);
    padding: 0.4rem 0.8rem;
    background: var(--uide-bg-card);
    border-radius: var(--uide-radius-sm);
    transition: all 0.3s ease;
}

.uide-footer-link:hover {
    color: var(--uide-primary);
    background: var(--uide-bg-dark);
}

.uide-partners {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.8rem;
    margin-bottom: 1.6rem;
}

.uide-partner-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--uide-radius-sm);
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

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

.uide-copyright {
    text-align: center;
    font-size: 1.1rem;
    color: var(--uide-text-muted);
    padding-top: 1rem;
    border-top: 1px solid var(--uide-border);
}

/* Bottom Navigation - Mobile Only */
.uide-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--uide-bg-darker);
    border-top: 1px solid var(--uide-border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
    padding: 0 0.4rem;
}

.uide-nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    min-height: 60px;
    padding: 0.4rem;
    background: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: var(--uide-radius-md);
}

.uide-nav-btn i {
    font-size: 24px;
    color: var(--uide-text-muted);
    margin-bottom: 0.2rem;
    transition: all 0.3s ease;
}

.uide-nav-btn span {
    font-size: 10px;
    color: var(--uide-text-muted);
    transition: all 0.3s ease;
}

.uide-nav-btn:hover i,
.uide-nav-btn:hover span,
.uide-nav-btn.active i,
.uide-nav-btn.active span {
    color: var(--uide-primary);
}

.uide-nav-btn:hover {
    background: rgba(191, 54, 12, 0.1);
}

.uide-nav-btn.active {
    background: rgba(191, 54, 12, 0.15);
}

/* Hide bottom nav on desktop */
@media (min-width: 769px) {
    .uide-bottom-nav {
        display: none;
    }
}

/* Text Utilities */
.uide-text-primary {
    color: var(--uide-primary);
}

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

.uide-text-bold {
    font-weight: 700;
}

/* Link Styles */
.uide-link {
    color: var(--uide-primary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.uide-link:hover {
    color: #ff5722;
    text-decoration: underline;
}

/* Promo Link Styles */
.uide-promo-link {
    color: var(--uide-primary);
    font-weight: 700;
    text-decoration: underline;
    cursor: pointer;
}

.uide-promo-link:hover {
    color: #ff5722;
}

/* Responsive */
@media (max-width: 768px) {
    html {
        font-size: 58%;
    }

    .uide-game-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.6rem;
    }

    .uide-game-icon {
        width: 48px;
        height: 48px;
    }
}

@media (max-width: 360px) {
    .uide-game-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Desktop Navigation */
@media (min-width: 769px) {
    .uide-hamburger {
        display: none;
    }

    .uide-desktop-nav {
        display: flex;
        align-items: center;
        gap: 1.6rem;
    }

    .uide-desktop-nav .uide-nav-link {
        padding: 0.6rem 1rem;
        font-size: 1.3rem;
    }

    .uide-header-content {
        max-width: 1200px;
    }

    .uide-container {
        max-width: 1200px;
    }
}