/**
 * EM77 Layout CSS
 * Mobile-first responsive design for em77.club
 * All classes use uicf- prefix to avoid conflicts
 */

/* CSS Variables */
:root {
    --uicf-primary: #FFBF00;
    --uicf-secondary: #FFB74D;
    --uicf-accent: #1E90FF;
    --uicf-bg-dark: #333333;
    --uicf-bg-light: #1a1a1a;
    --uicf-text-light: #ADB5BD;
    --uicf-text-white: #ffffff;
    --uicf-skyblue: #87CEEB;
    --uicf-gradient-gold: linear-gradient(135deg, #FFBF00 0%, #FFB74D 100%);
    --uicf-gradient-blue: linear-gradient(135deg, #1E90FF 0%, #87CEEB 100%);
    --uicf-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --uicf-radius: 8px;
}

/* Reset and Base */
* {
    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, sans-serif;
    background-color: var(--uicf-bg-dark);
    color: var(--uicf-text-light);
    line-height: 1.5rem;
    font-size: 1.4rem;
    max-width: 430px;
    margin: 0 auto;
    min-height: 100vh;
}

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

a:hover {
    color: var(--uicf-secondary);
}

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

/* Container */
.uicf-container {
    width: 100%;
    padding: 0 1.2rem;
    margin: 0 auto;
}

.uicf-wrapper {
    padding: 1.5rem 0;
}

/* Header */
.uicf-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, var(--uicf-bg-dark) 0%, rgba(51, 51, 51, 0.95) 100%);
    z-index: 1000;
    padding: 0.8rem 0;
    box-shadow: var(--uicf-shadow);
    max-width: 430px;
    margin: 0 auto;
}

.uicf-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.2rem;
}

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

.uicf-logo img {
    width: 28px;
    height: 28px;
}

.uicf-logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--uicf-primary);
}

.uicf-header-buttons {
    display: flex;
    gap: 0.6rem;
}

.uicf-btn {
    padding: 0.6rem 1.2rem;
    border-radius: var(--uicf-radius);
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

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

.uicf-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 191, 0, 0.4);
}

.uicf-btn-secondary {
    background: transparent;
    color: var(--uicf-primary);
    border: 1px solid var(--uicf-primary);
}

.uicf-btn-secondary:hover {
    background: rgba(255, 191, 0, 0.1);
}

.uicf-btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 1.1rem;
}

/* Navigation */
.uicf-nav-toggle {
    background: none;
    border: none;
    color: var(--uicf-text-white);
    font-size: 2rem;
    cursor: pointer;
    padding: 0.5rem;
}

.uicf-mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--uicf-bg-dark);
    border-top: 1px solid rgba(255, 191, 0, 0.2);
    padding: 1rem 0;
    max-height: 70vh;
    overflow-y: auto;
}

.uicf-menu-open {
    display: block;
}

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

.uicf-nav-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.uicf-nav-link {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--uicf-text-light);
    font-size: 1.3rem;
    transition: all 0.3s ease;
}

.uicf-nav-link:hover {
    background: rgba(255, 191, 0, 0.1);
    color: var(--uicf-primary);
}

.uicf-nav-link i {
    margin-right: 0.8rem;
    width: 20px;
    text-align: center;
}

/* Carousel */
.uicf-carousel {
    position: relative;
    overflow: hidden;
    margin-top: 52px;
}

.uicf-slide {
    width: 100%;
    cursor: pointer;
    transition: opacity 0.5s ease;
}

.uicf-slide img {
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
    object-fit: cover;
}

/* Main Content */
.uicf-main {
    padding-bottom: 80px;
}

.uicf-section {
    padding: 2rem 1.2rem;
}

.uicf-section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--uicf-primary);
    margin-bottom: 1.5rem;
    text-align: center;
    position: relative;
}

.uicf-section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--uicf-gradient-gold);
    margin: 0.8rem auto 0;
    border-radius: 2px;
}

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

.uicf-game-item {
    text-align: center;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.uicf-game-item:hover {
    transform: translateY(-3px);
}

.uicf-game-img {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--uicf-radius);
    object-fit: cover;
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.uicf-game-item:hover .uicf-game-img {
    border-color: var(--uicf-primary);
}

.uicf-game-name {
    font-size: 1rem;
    color: var(--uicf-text-light);
    margin-top: 0.4rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Category Tabs */
.uicf-category-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--uicf-text-white);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.uicf-category-title i {
    color: var(--uicf-primary);
}

/* Info Cards */
.uicf-card {
    background: var(--uicf-bg-light);
    border-radius: var(--uicf-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 191, 0, 0.1);
}

.uicf-card-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--uicf-primary);
    margin-bottom: 0.8rem;
}

.uicf-card-text {
    font-size: 1.2rem;
    color: var(--uicf-text-light);
    line-height: 1.6;
}

/* FAQ */
.uicf-faq-item {
    background: var(--uicf-bg-light);
    border-radius: var(--uicf-radius);
    margin-bottom: 0.8rem;
    overflow: hidden;
}

.uicf-faq-question {
    padding: 1rem 1.2rem;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--uicf-text-white);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.uicf-faq-answer {
    padding: 0 1.2rem 1rem;
    font-size: 1.2rem;
    color: var(--uicf-text-light);
    line-height: 1.6;
}

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

.uicf-feature-item {
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--uicf-bg-light);
    border-radius: var(--uicf-radius);
    border: 1px solid rgba(255, 191, 0, 0.1);
}

.uicf-feature-icon {
    font-size: 2.5rem;
    color: var(--uicf-primary);
    margin-bottom: 0.8rem;
}

.uicf-feature-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--uicf-text-white);
    margin-bottom: 0.4rem;
}

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

/* Footer */
.uicf-footer {
    background: var(--uicf-bg-light);
    padding: 2rem 1.2rem 3rem;
    border-top: 1px solid rgba(255, 191, 0, 0.2);
}

.uicf-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.uicf-footer-link {
    font-size: 1.1rem;
    color: var(--uicf-text-light);
    padding: 0.4rem 0.8rem;
    background: rgba(255, 191, 0, 0.1);
    border-radius: 4px;
}

.uicf-partners {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
    margin: 1.5rem 0;
}

.uicf-partner-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.uicf-partner-img:hover {
    opacity: 1;
}

.uicf-copyright {
    text-align: center;
    font-size: 1.1rem;
    color: var(--uicf-text-light);
    opacity: 0.7;
}

/* Bottom Navigation */
.uicf-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--uicf-bg-dark);
    border-top: 1px solid rgba(255, 191, 0, 0.2);
    padding: 0.6rem 0;
    z-index: 1000;
    max-width: 430px;
    margin: 0 auto;
}

.uicf-bottom-nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.uicf-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 60px;
}

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

.uicf-bottom-nav-item.active .uicf-bottom-nav-icon,
.uicf-bottom-nav-item.active .uicf-bottom-nav-text {
    color: var(--uicf-primary);
}

.uicf-bottom-nav-icon {
    font-size: 2rem;
    color: var(--uicf-text-light);
}

.uicf-bottom-nav-text {
    font-size: 1rem;
    color: var(--uicf-text-light);
}

/* Promo Links */
.uicf-promo-text {
    font-size: 1.3rem;
    color: var(--uicf-text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.uicf-promo-text strong {
    color: var(--uicf-primary);
}

.uicf-text-link {
    color: var(--uicf-accent);
    text-decoration: underline;
}

.uicf-text-link:hover {
    color: var(--uicf-skyblue);
}

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

    .uicf-features-grid {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.uicf-animate {
    animation: fadeIn 0.5s ease forwards;
}

/* Utility Classes */
.uicf-text-center { text-align: center; }
.uicf-text-gold { color: var(--uicf-primary); }
.uicf-text-white { color: var(--uicf-text-white); }
.uicf-mb-1 { margin-bottom: 1rem; }
.uicf-mb-2 { margin-bottom: 2rem; }
.uicf-mt-1 { margin-top: 1rem; }
.uicf-mt-2 { margin-top: 2rem; }