/**
 * NN77 Gaming Platform - Core Stylesheet
 * Version: 1.0.0
 * Prefix: ui4d-
 * Colors: #0F0F23 (bg), #CC99FF (accent), #9966CC (purple), #B03060 (rose), #CD853F (gold)
 */

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

:root {
    --ui4d-bg-primary: #0F0F23;
    --ui4d-bg-secondary: #1a1a35;
    --ui4d-accent: #CC99FF;
    --ui4d-purple: #9966CC;
    --ui4d-rose: #B03060;
    --ui4d-gold: #CD853F;
    --ui4d-text-primary: #FFFFFF;
    --ui4d-text-secondary: #B8B8D0;
    --ui4d-border-radius: 12px;
    --ui4d-transition: all 0.3s ease;
    --ui4d-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --ui4d-shadow-hover: 0 8px 30px rgba(204, 153, 255, 0.2);
}

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

body {
    font-family: 'Segoe UI', 'Roboto', sans-serif;
    background: var(--ui4d-bg-primary);
    color: var(--ui4d-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    max-width: 430px;
    margin: 0 auto;
}

a {
    text-decoration: none;
    color: inherit;
}

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

/* Header Styles */
.ui4d-header {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 430px;
    background: linear-gradient(180deg, rgba(15, 15, 35, 0.98) 0%, rgba(15, 15, 35, 0.95) 100%);
    backdrop-filter: blur(10px);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    border-bottom: 1px solid rgba(204, 153, 255, 0.1);
    transition: var(--ui4d-transition);
}

.ui4d-header-scrolled {
    background: rgba(15, 15, 35, 0.99);
    box-shadow: var(--ui4d-shadow);
}

.ui4d-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ui4d-logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.ui4d-logo-text {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--ui4d-accent), var(--ui4d-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ui4d-header-actions {
    display: flex;
    gap: 10px;
}

.ui4d-btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 1.4rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ui4d-transition);
    border: none;
    min-height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ui4d-btn-login {
    background: transparent;
    border: 2px solid var(--ui4d-accent);
    color: var(--ui4d-accent);
}

.ui4d-btn-login:hover {
    background: var(--ui4d-accent);
    color: var(--ui4d-bg-primary);
}

.ui4d-btn-register {
    background: linear-gradient(135deg, var(--ui4d-accent), var(--ui4d-purple));
    color: var(--ui4d-text-primary);
}

.ui4d-btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(204, 153, 255, 0.4);
}

.ui4d-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--ui4d-accent);
    font-size: 2.4rem;
    cursor: pointer;
    padding: 8px;
}

/* Mobile Menu */
.ui4d-mobile-menu {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    background: var(--ui4d-bg-secondary);
    z-index: 9999;
    padding: 80px 20px 20px;
    transition: right 0.3s ease;
    overflow-y: auto;
}

.ui4d-menu-active {
    right: 0;
}

.ui4d-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: var(--ui4d-transition);
}

.ui4d-overlay-active {
    opacity: 1;
    visibility: visible;
}

.ui4d-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    color: var(--ui4d-accent);
    font-size: 2.8rem;
    cursor: pointer;
}

.ui4d-menu-nav {
    list-style: none;
}

.ui4d-menu-nav li {
    margin-bottom: 8px;
}

.ui4d-menu-nav a {
    display: block;
    padding: 14px 16px;
    color: var(--ui4d-text-primary);
    font-size: 1.6rem;
    border-radius: 8px;
    transition: var(--ui4d-transition);
}

.ui4d-menu-nav a:hover {
    background: rgba(204, 153, 255, 0.1);
    color: var(--ui4d-accent);
}

/* Main Content */
main {
    padding-top: 70px;
    padding-bottom: 20px;
}

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

/* Hero Carousel */
.ui4d-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 0;
}

.ui4d-slides {
    position: relative;
    height: 200px;
}

.ui4d-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.ui4d-slide-active {
    opacity: 1;
}

.ui4d-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ui4d-carousel-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.ui4d-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--ui4d-transition);
}

.ui4d-dot-active {
    background: var(--ui4d-accent);
    transform: scale(1.2);
}

/* Section Styles */
.ui4d-section {
    padding: 24px 16px;
}

.ui4d-section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--ui4d-accent);
    display: flex;
    align-items: center;
    gap: 10px;
}

.ui4d-section-title i {
    font-size: 2.4rem;
}

/* Game Categories Tabs */
.ui4d-tabs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 12px;
    margin-bottom: 16px;
    scrollbar-width: none;
}

.ui4d-tabs::-webkit-scrollbar {
    display: none;
}

.ui4d-tab-btn {
    flex-shrink: 0;
    padding: 10px 20px;
    background: var(--ui4d-bg-secondary);
    border: 1px solid rgba(204, 153, 255, 0.2);
    border-radius: 20px;
    color: var(--ui4d-text-secondary);
    font-size: 1.3rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--ui4d-transition);
    white-space: nowrap;
    min-height: 44px;
}

.ui4d-tab-btn:hover {
    border-color: var(--ui4d-accent);
    color: var(--ui4d-accent);
}

.ui4d-tab-active {
    background: linear-gradient(135deg, var(--ui4d-accent), var(--ui4d-purple));
    color: var(--ui4d-text-primary);
    border-color: transparent;
}

/* Games Grid */
.ui4d-games-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.ui4d-game-card {
    position: relative;
    border-radius: var(--ui4d-border-radius);
    overflow: hidden;
    cursor: pointer;
    transition: var(--ui4d-transition);
    background: var(--ui4d-bg-secondary);
    aspect-ratio: 1;
}

.ui4d-game-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--ui4d-shadow-hover);
}

.ui4d-game-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ui4d-game-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 8px 6px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
    font-size: 1.1rem;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Info Cards */
.ui4d-info-card {
    background: var(--ui4d-bg-secondary);
    border-radius: var(--ui4d-border-radius);
    padding: 20px;
    margin-bottom: 16px;
    border: 1px solid rgba(204, 153, 255, 0.1);
}

.ui4d-info-card h3 {
    font-size: 1.8rem;
    color: var(--ui4d-accent);
    margin-bottom: 12px;
}

.ui4d-info-card p {
    font-size: 1.4rem;
    color: var(--ui4d-text-secondary);
    line-height: 1.7;
}

.ui4d-info-card ul {
    list-style: none;
    margin-top: 12px;
}

.ui4d-info-card li {
    padding: 8px 0;
    font-size: 1.4rem;
    color: var(--ui4d-text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.ui4d-info-card li i {
    color: var(--ui4d-gold);
    font-size: 1.6rem;
}

/* Feature Grid */
.ui4d-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.ui4d-feature-item {
    background: var(--ui4d-bg-secondary);
    border-radius: var(--ui4d-border-radius);
    padding: 16px;
    text-align: center;
    border: 1px solid rgba(204, 153, 255, 0.1);
    transition: var(--ui4d-transition);
}

.ui4d-feature-item:hover {
    border-color: var(--ui4d-accent);
    transform: translateY(-2px);
}

.ui4d-feature-item i {
    font-size: 2.8rem;
    color: var(--ui4d-accent);
    margin-bottom: 10px;
}

.ui4d-feature-item h4 {
    font-size: 1.4rem;
    color: var(--ui4d-text-primary);
    margin-bottom: 6px;
}

.ui4d-feature-item p {
    font-size: 1.2rem;
    color: var(--ui4d-text-secondary);
}

/* Footer */
.ui4d-footer {
    background: var(--ui4d-bg-secondary);
    padding: 24px 16px;
    margin-top: 24px;
    border-top: 1px solid rgba(204, 153, 255, 0.1);
}

.ui4d-footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.ui4d-footer-logo img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.ui4d-footer-logo span {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--ui4d-accent);
}

.ui4d-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.ui4d-footer-links a {
    font-size: 1.3rem;
    color: var(--ui4d-text-secondary);
    transition: var(--ui4d-transition);
}

.ui4d-footer-links a:hover {
    color: var(--ui4d-accent);
}

.ui4d-partners {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.ui4d-partner-logo {
    width: 60px;
    height: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--ui4d-text-secondary);
}

.ui4d-copyright {
    font-size: 1.2rem;
    color: var(--ui4d-text-secondary);
    text-align: center;
    padding-top: 16px;
    border-top: 1px solid rgba(204, 153, 255, 0.1);
}

/* Bottom Navigation */
.ui4d-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 430px;
    background: linear-gradient(180deg, rgba(26, 26, 53, 0.98) 0%, rgba(15, 15, 35, 0.99) 100%);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 8px 4px;
    z-index: 1000;
    border-top: 1px solid rgba(204, 153, 255, 0.2);
}

.ui4d-nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    background: transparent;
    border: none;
    color: var(--ui4d-text-secondary);
    cursor: pointer;
    transition: var(--ui4d-transition);
    min-width: 60px;
    min-height: 60px;
    border-radius: 12px;
}

.ui4d-nav-btn:hover {
    background: rgba(204, 153, 255, 0.1);
    color: var(--ui4d-accent);
}

.ui4d-nav-btn i {
    font-size: 2.4rem;
    margin-bottom: 4px;
}

.ui4d-nav-btn span {
    font-size: 1rem;
    font-weight: 500;
}

.ui4d-nav-btn.ui4d-nav-active {
    color: var(--ui4d-accent);
}

.ui4d-nav-btn.ui4d-nav-active i {
    transform: scale(1.1);
}

/* Hide bottom nav on desktop */
@media (min-width: 769px) {
    .ui4d-bottom-nav {
        display: none;
    }
}

/* CTA Banner */
.ui4d-cta-banner {
    background: linear-gradient(135deg, var(--ui4d-purple), var(--ui4d-rose));
    border-radius: var(--ui4d-border-radius);
    padding: 24px 20px;
    text-align: center;
    margin: 16px 0;
}

.ui4d-cta-banner h3 {
    font-size: 2rem;
    color: var(--ui4d-text-primary);
    margin-bottom: 8px;
}

.ui4d-cta-banner p {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 16px;
}

.ui4d-cta-btn {
    display: inline-block;
    padding: 14px 32px;
    background: var(--ui4d-gold);
    color: var(--ui4d-bg-primary);
    font-size: 1.6rem;
    font-weight: 700;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--ui4d-transition);
}

.ui4d-cta-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(205, 133, 63, 0.4);
}

/* FAQ Accordion */
.ui4d-faq-item {
    background: var(--ui4d-bg-secondary);
    border-radius: var(--ui4d-border-radius);
    margin-bottom: 10px;
    overflow: hidden;
    border: 1px solid rgba(204, 153, 255, 0.1);
}

.ui4d-faq-question {
    padding: 16px;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--ui4d-text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--ui4d-transition);
}

.ui4d-faq-question:hover {
    color: var(--ui4d-accent);
}

.ui4d-faq-question i {
    font-size: 1.8rem;
    color: var(--ui4d-accent);
}

.ui4d-faq-answer {
    padding: 0 16px 16px;
    font-size: 1.3rem;
    color: var(--ui4d-text-secondary);
    line-height: 1.6;
}

/* Page Content Styles */
.ui4d-page-header {
    background: linear-gradient(135deg, var(--ui4d-purple), var(--ui4d-rose));
    padding: 60px 16px 30px;
    text-align: center;
}

.ui4d-page-title {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--ui4d-text-primary);
    margin-bottom: 8px;
}

.ui4d-page-subtitle {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.85);
}

.ui4d-content-block {
    padding: 20px 16px;
}

.ui4d-content-block h2 {
    font-size: 1.8rem;
    color: var(--ui4d-accent);
    margin-bottom: 12px;
}

.ui4d-content-block p {
    font-size: 1.4rem;
    color: var(--ui4d-text-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

/* Utility Classes */
.ui4d-text-center {
    text-align: center;
}

.ui4d-mb-16 {
    margin-bottom: 16px;
}

.ui4d-mt-16 {
    margin-top: 16px;
}

.ui4d-hidden-desktop {
    display: block;
}

@media (min-width: 769px) {
    .ui4d-hidden-desktop {
        display: none;
    }
}

/* Responsive Adjustments */
@media (max-width: 380px) {
    .ui4d-games-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .ui4d-btn {
        padding: 8px 14px;
        font-size: 1.2rem;
    }
}