/**
 * KG777 Main Stylesheet
 * Class prefix: sf31-
 * Website: kg777.club
 * Version: 1.0.0
 */

/* CSS Variables */
:root {
    --sf31-primary: #006400;
    --sf31-primary-light: #3CB371;
    --sf31-secondary: #ECF0F1;
    --sf31-bg-dark: #262626;
    --sf31-bg-light: #F5F5F5;
    --sf31-text-light: #FFFFFF;
    --sf31-text-dark: #262626;
    --sf31-accent: #3CB371;
    --sf31-gradient: linear-gradient(135deg, #006400 0%, #3CB371 100%);
    --sf31-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    --sf31-radius: 8px;
    --sf31-radius-lg: 16px;
    --sf31-transition: all 0.3s ease;
    --vh: 1vh;
}

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

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 1.6rem;
    line-height: 1.5;
    background-color: var(--sf31-bg-light);
    color: var(--sf31-text-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.sf31-container {
    max-width: 430px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.sf31-wrapper {
    padding: 1rem 0;
}

/* Header */
.sf31-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--sf31-gradient);
    padding: 0.8rem 1rem;
    box-shadow: var(--sf31-shadow);
    transition: var(--sf31-transition);
}

.sf31-header-scrolled {
    padding: 0.5rem 1rem;
    background: rgba(0, 100, 0, 0.95);
}

.sf31-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 430px;
    margin: 0 auto;
}

.sf31-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
}

.sf31-logo img {
    width: 28px;
    height: 28px;
    border-radius: 4px;
}

.sf31-logo-text {
    color: var(--sf31-text-light);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.sf31-header-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.sf31-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.2rem;
    font-size: 1.2rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--sf31-radius);
    cursor: pointer;
    transition: var(--sf31-transition);
    min-height: 36px;
    min-width: 70px;
}

.sf31-btn-primary {
    background: var(--sf31-text-light);
    color: var(--sf31-primary);
}

.sf31-btn-primary:hover {
    background: var(--sf31-secondary);
    transform: scale(1.05);
}

.sf31-btn-outline {
    background: transparent;
    color: var(--sf31-text-light);
    border: 2px solid var(--sf31-text-light);
}

.sf31-btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
}

.sf31-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.sf31-menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--sf31-text-light);
    transition: var(--sf31-transition);
}

/* Mobile Menu */
.sf31-mobile-menu {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    background: var(--sf31-bg-dark);
    z-index: 9999;
    transition: right 0.3s ease;
    overflow-y: auto;
    padding: 2rem 1.5rem;
}

.sf31-menu-active {
    right: 0;
}

.sf31-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: var(--sf31-transition);
}

.sf31-overlay-active {
    opacity: 1;
    visibility: visible;
}

.sf31-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sf31-menu-close {
    background: none;
    border: none;
    color: var(--sf31-text-light);
    font-size: 2.4rem;
    cursor: pointer;
    padding: 0.5rem;
}

.sf31-menu-nav {
    list-style: none;
}

.sf31-menu-nav li {
    margin-bottom: 0.5rem;
}

.sf31-menu-nav a {
    display: block;
    color: var(--sf31-text-light);
    text-decoration: none;
    padding: 1rem;
    font-size: 1.4rem;
    border-radius: var(--sf31-radius);
    transition: var(--sf31-transition);
}

.sf31-menu-nav a:hover {
    background: rgba(60, 179, 113, 0.2);
    color: var(--sf31-accent);
}

/* Main Content */
.sf31-main {
    padding-top: 60px;
    padding-bottom: 80px;
}

/* Carousel/Slider */
.sf31-carousel {
    position: relative;
    overflow: hidden;
    border-radius: var(--sf31-radius-lg);
    margin: 1rem;
}

.sf31-slides {
    position: relative;
}

.sf31-slide {
    display: none;
    width: 100%;
    cursor: pointer;
    transition: opacity 0.5s ease;
}

.sf31-slide-active {
    display: block;
}

.sf31-slide img {
    width: 100%;
    height: auto;
    border-radius: var(--sf31-radius-lg);
}

.sf31-indicators {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.sf31-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--sf31-transition);
}

.sf31-indicator-active {
    background: var(--sf31-text-light);
    transform: scale(1.2);
}

/* Section Titles */
.sf31-section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--sf31-primary);
    margin: 1.5rem 1rem 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--sf31-accent);
}

/* Game Grid */
.sf31-game-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
    padding: 0.5rem 1rem;
}

.sf31-game-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    background: var(--sf31-text-light);
    border-radius: var(--sf31-radius);
    padding: 0.5rem;
    transition: var(--sf31-transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.sf31-game-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--sf31-shadow);
}

.sf31-game-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 0.3rem;
}

.sf31-game-name {
    font-size: 1rem;
    color: var(--sf31-text-dark);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 100%;
}

/* Content Sections */
.sf31-content-section {
    background: var(--sf31-text-light);
    margin: 1rem;
    padding: 1.5rem;
    border-radius: var(--sf31-radius-lg);
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.08);
}

.sf31-content-section h2 {
    font-size: 1.6rem;
    color: var(--sf31-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sf31-content-section h3 {
    font-size: 1.4rem;
    color: var(--sf31-primary);
    margin: 1rem 0 0.5rem;
}

.sf31-content-section p {
    color: var(--sf31-text-dark);
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

.sf31-content-section ul {
    list-style: none;
    margin: 0.5rem 0;
}

.sf31-content-section li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--sf31-text-dark);
}

.sf31-content-section li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--sf31-accent);
    border-radius: 50%;
}

/* Promo Link */
.sf31-promo-link {
    color: var(--sf31-primary);
    font-weight: 600;
    text-decoration: none;
    transition: var(--sf31-transition);
    cursor: pointer;
}

.sf31-promo-link:hover {
    color: var(--sf31-accent);
    text-decoration: underline;
}

.sf31-promo-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--sf31-gradient);
    color: var(--sf31-text-light);
    padding: 1rem 2rem;
    font-size: 1.4rem;
    font-weight: 700;
    border-radius: var(--sf31-radius);
    text-decoration: none;
    cursor: pointer;
    transition: var(--sf31-transition);
    margin: 1rem 0;
}

.sf31-promo-btn:hover {
    transform: scale(1.02);
    box-shadow: var(--sf31-shadow);
}

/* Footer */
.sf31-footer {
    background: var(--sf31-bg-dark);
    color: var(--sf31-text-light);
    padding: 2rem 1rem;
    padding-bottom: 5rem;
}

.sf31-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.sf31-footer-links a {
    color: var(--sf31-text-light);
    text-decoration: none;
    font-size: 1.2rem;
    padding: 0.4rem 0.8rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    transition: var(--sf31-transition);
}

.sf31-footer-links a:hover {
    background: var(--sf31-accent);
    color: var(--sf31-text-light);
}

.sf31-partners {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.sf31-partners img {
    height: 24px;
    width: auto;
    opacity: 0.7;
    transition: var(--sf31-transition);
}

.sf31-partners img:hover {
    opacity: 1;
}

.sf31-copyright {
    text-align: center;
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Bottom Navigation */
.sf31-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--sf31-bg-dark);
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 60px;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
}

.sf31-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
    padding: 0.5rem;
    min-width: 60px;
    min-height: 60px;
    transition: var(--sf31-transition);
    cursor: pointer;
}

.sf31-nav-item:hover,
.sf31-nav-item.active {
    color: var(--sf31-accent);
}

.sf31-nav-item i,
.sf31-nav-item .material-icons {
    font-size: 24px;
    margin-bottom: 2px;
}

.sf31-nav-item span {
    font-size: 10px;
    font-weight: 500;
}

.sf31-nav-item.active {
    background: rgba(60, 179, 113, 0.15);
    border-radius: 8px;
}

/* Touch feedback */
.sf31-touch-active {
    opacity: 0.8;
    transform: scale(0.98);
}

/* Responsive */
@media (min-width: 769px) {
    .sf31-bottom-nav {
        display: none;
    }

    .sf31-main {
        padding-bottom: 2rem;
    }

    .sf31-footer {
        padding-bottom: 2rem;
    }

    .sf31-container {
        max-width: 768px;
    }

    .sf31-header-content {
        max-width: 768px;
    }
}

@media (max-width: 768px) {
    .sf31-main {
        padding-bottom: 80px;
    }
}

/* Utility Classes */
.sf31-text-center {
    text-align: center;
}

.sf31-mt-1 {
    margin-top: 0.5rem;
}

.sf31-mt-2 {
    margin-top: 1rem;
}

.sf31-mb-1 {
    margin-bottom: 0.5rem;
}

.sf31-mb-2 {
    margin-bottom: 1rem;
}

.sf31-hidden {
    display: none !important;
}

/* Animation */
@keyframes sf31-fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sf31-fade-in {
    animation: sf31-fadeIn 0.5s ease forwards;
}