/**
 * King PH App - Main Stylesheet
 * Class Prefix: uifd-
 * Mobile-first responsive design (max-width: 430px)
 * Color Palette: #0A0A0A (dark bg), #C0C0C0 (light text), #FFA500 (accent)
 */

/* CSS Reset and Variables */
:root {
    --uifd-bg: #0A0A0A;
    --uifd-bg-secondary: #1a1a1a;
    --uifd-bg-tertiary: #252525;
    --uifd-text: #C0C0C0;
    --uifd-text-light: #e0e0e0;
    --uifd-accent: #FFA500;
    --uifd-accent-hover: #ffb733;
    --uifd-accent-dark: #cc8400;
    --uifd-border: #333333;
    --uifd-shadow: rgba(0, 0, 0, 0.3);
    --uifd-gradient: linear-gradient(135deg, #FFA500 0%, #cc8400 100%);
}

* {
    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;
    font-size: 1.6rem;
    line-height: 1.5;
    background-color: var(--uifd-bg);
    color: var(--uifd-text);
    overflow-x: hidden;
}

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

a:hover {
    color: var(--uifd-accent-hover);
}

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

/* Container */
.uifd-container {
    width: 100%;
    max-width: 430px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header */
.uifd-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(180deg, #0A0A0A 0%, #1a1a1a 100%);
    border-bottom: 1px solid var(--uifd-border);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
}

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

.uifd-logo img {
    width: 32px;
    height: 32px;
    border-radius: 6px;
}

.uifd-logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--uifd-accent);
    white-space: nowrap;
}

.uifd-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.uifd-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    font-size: 1.4rem;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.uifd-btn-primary {
    background: var(--uifd-gradient);
    color: var(--uifd-bg);
}

.uifd-btn-primary:hover {
    background: var(--uifd-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 165, 0, 0.3);
}

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

.uifd-btn-outline:hover {
    background: var(--uifd-accent);
    color: var(--uifd-bg);
}

.uifd-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.uifd-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--uifd-accent);
    margin: 3px 0;
    transition: all 0.3s ease;
}

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

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

.uifd-mobile-menu .uifd-nav-list {
    list-style: none;
}

.uifd-mobile-menu .uifd-nav-item {
    border-bottom: 1px solid var(--uifd-border);
}

.uifd-mobile-menu .uifd-nav-link {
    display: block;
    padding: 16px 0;
    color: var(--uifd-text);
    font-size: 1.6rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.uifd-mobile-menu .uifd-nav-link:hover {
    color: var(--uifd-accent);
}

.uifd-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: all 0.3s ease;
}

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

/* Main Content */
.uifd-main {
    padding-top: 60px;
    min-height: 100vh;
}

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

/* Hero Carousel */
.uifd-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.uifd-slides {
    display: flex;
    width: 100%;
}

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

.uifd-slide-active {
    opacity: 1;
    position: relative;
}

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

.uifd-slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
}

.uifd-slide-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--uifd-text-light);
    margin-bottom: 8px;
}

.uifd-slide-desc {
    font-size: 1.4rem;
    color: var(--uifd-text);
}

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

.uifd-slide-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: none;
    cursor: pointer;
    transition: background 0.3s ease;
}

.uifd-indicator-active {
    background: var(--uifd-accent);
}

/* Section Styles */
.uifd-section {
    padding: 30px 16px;
}

.uifd-section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--uifd-text-light);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.uifd-section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--uifd-accent);
    border-radius: 2px;
}

/* Game Categories */
.uifd-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.uifd-category-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--uifd-accent);
}

.uifd-category-more {
    font-size: 1.3rem;
    color: var(--uifd-text);
}

/* Game Grid */
.uifd-game-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

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

.uifd-game-item:hover {
    transform: translateY(-4px);
}

.uifd-game-img {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 10px;
    object-fit: cover;
    border: 2px solid var(--uifd-border);
    transition: border-color 0.3s ease;
}

.uifd-game-item:hover .uifd-game-img {
    border-color: var(--uifd-accent);
}

.uifd-game-name {
    font-size: 1.1rem;
    color: var(--uifd-text);
    margin-top: 6px;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Content Cards */
.uifd-card {
    background: var(--uifd-bg-secondary);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    border: 1px solid var(--uifd-border);
}

.uifd-card-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--uifd-text-light);
    margin-bottom: 12px;
}

.uifd-card-text {
    font-size: 1.4rem;
    color: var(--uifd-text);
    line-height: 1.6;
    margin-bottom: 12px;
}

/* Features List */
.uifd-features {
    display: grid;
    gap: 16px;
}

.uifd-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.uifd-feature-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    background: var(--uifd-gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--uifd-bg);
    font-size: 1.8rem;
}

.uifd-feature-content h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--uifd-text-light);
    margin-bottom: 4px;
}

.uifd-feature-content p {
    font-size: 1.3rem;
    color: var(--uifd-text);
}

/* FAQ Accordion */
.uifd-faq-item {
    border-bottom: 1px solid var(--uifd-border);
    padding: 16px 0;
}

.uifd-faq-question {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--uifd-text-light);
    margin-bottom: 8px;
}

.uifd-faq-answer {
    font-size: 1.4rem;
    color: var(--uifd-text);
    line-height: 1.6;
}

/* Testimonials */
.uifd-testimonial {
    background: var(--uifd-bg-tertiary);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 12px;
    border-left: 3px solid var(--uifd-accent);
}

.uifd-testimonial-text {
    font-size: 1.4rem;
    color: var(--uifd-text);
    font-style: italic;
    margin-bottom: 10px;
}

.uifd-testimonial-author {
    font-size: 1.3rem;
    color: var(--uifd-accent);
    font-weight: 600;
}

/* Footer */
.uifd-footer {
    background: var(--uifd-bg-secondary);
    padding: 30px 16px 20px;
    border-top: 1px solid var(--uifd-border);
}

.uifd-footer-brand {
    text-align: center;
    margin-bottom: 20px;
}

.uifd-footer-desc {
    font-size: 1.3rem;
    color: var(--uifd-text);
    line-height: 1.6;
    margin-bottom: 16px;
}

.uifd-footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.uifd-footer-link {
    padding: 8px 16px;
    background: var(--uifd-bg-tertiary);
    border-radius: 6px;
    font-size: 1.3rem;
    color: var(--uifd-text);
    border: 1px solid var(--uifd-border);
    transition: all 0.3s ease;
}

.uifd-footer-link:hover {
    background: var(--uifd-accent);
    color: var(--uifd-bg);
    border-color: var(--uifd-accent);
}

.uifd-footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
    padding: 16px 0;
    border-top: 1px solid var(--uifd-border);
    border-bottom: 1px solid var(--uifd-border);
}

.uifd-footer-nav a {
    font-size: 1.3rem;
    color: var(--uifd-text);
}

.uifd-footer-nav a:hover {
    color: var(--uifd-accent);
}

.uifd-copyright {
    text-align: center;
    font-size: 1.2rem;
    color: var(--uifd-text);
    opacity: 0.7;
}

/* Bottom Navigation */
.uifd-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: linear-gradient(180deg, #1a1a1a 0%, #0A0A0A 100%);
    border-top: 1px solid var(--uifd-border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
    padding: 0 8px;
}

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

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

.uifd-nav-btn:hover,
.uifd-nav-btn.uifd-active {
    color: var(--uifd-accent);
}

.uifd-nav-btn i,
.uifd-nav-btn .material-icons-outlined {
    font-size: 24px;
    margin-bottom: 4px;
}

.uifd-nav-btn span {
    font-size: 11px;
    font-weight: 500;
}

/* Back to Top Button */
.uifd-back-to-top {
    position: fixed;
    bottom: 80px;
    right: 16px;
    width: 44px;
    height: 44px;
    background: var(--uifd-gradient);
    border: none;
    border-radius: 50%;
    color: var(--uifd-bg);
    font-size: 2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(255, 165, 0, 0.3);
}

.uifd-back-to-top.uifd-visible {
    opacity: 1;
    visibility: visible;
}

.uifd-back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(255, 165, 0, 0.4);
}

/* Promotional CTA Banner */
.uifd-cta-banner {
    background: var(--uifd-gradient);
    padding: 20px 16px;
    text-align: center;
    border-radius: 12px;
    margin: 20px 16px;
}

.uifd-cta-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--uifd-bg);
    margin-bottom: 8px;
}

.uifd-cta-text {
    font-size: 1.4rem;
    color: var(--uifd-bg);
    opacity: 0.9;
    margin-bottom: 16px;
}

.uifd-cta-btn {
    display: inline-block;
    padding: 12px 32px;
    background: var(--uifd-bg);
    color: var(--uifd-accent);
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.uifd-cta-btn:hover {
    background: var(--uifd-text-light);
    transform: scale(1.05);
}

/* Payment Methods */
.uifd-payment-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
}

.uifd-payment-item {
    background: var(--uifd-bg-tertiary);
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 1.3rem;
    color: var(--uifd-text);
    border: 1px solid var(--uifd-border);
}

/* Stats Grid */
.uifd-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.uifd-stat-item {
    background: var(--uifd-bg-tertiary);
    padding: 16px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid var(--uifd-border);
}

.uifd-stat-value {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--uifd-accent);
    margin-bottom: 4px;
}

.uifd-stat-label {
    font-size: 1.2rem;
    color: var(--uifd-text);
}

/* Winner List */
.uifd-winner-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    background: var(--uifd-bg-tertiary);
    border-radius: 8px;
    margin-bottom: 8px;
}

.uifd-winner-game {
    font-size: 1.4rem;
    color: var(--uifd-text-light);
}

.uifd-winner-amount {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--uifd-accent);
}

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

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

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

.uifd-mb-24 {
    margin-bottom: 24px;
}

.uifd-hidden-mobile {
    display: none;
}

@media (min-width: 769px) {
    .uifd-hidden-mobile {
        display: block;
    }

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

    .uifd-game-grid {
        grid-template-columns: repeat(6, 1fr);
    }

    .uifd-stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

.uifd-animate {
    animation: uifd-fade-in 0.5s ease forwards;
}