/**
 * Nustar Casino - Main Stylesheet
 * CSS Class Prefix: gfab-
 * Color Palette: #FFFFFF | #FFA500 | #FFD700 | #FFB347 | #0E1621
 * Mobile-first responsive design (max-width: 430px)
 */

/* CSS Variables */
:root {
    --gfab-primary: #FFA500;
    --gfab-secondary: #FFD700;
    --gfab-accent: #FFB347;
    --gfab-dark: #0E1621;
    --gfab-light: #FFFFFF;
    --gfab-gradient: linear-gradient(135deg, #FFA500 0%, #FFD700 100%);
    --gfab-shadow: 0 4px 15px rgba(255, 165, 0, 0.3);
    --gfab-radius: 12px;
    --gfab-transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--gfab-dark);
    color: var(--gfab-light);
    line-height: 1.6;
    max-width: 430px;
    margin: 0 auto;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.5em;
}

h1 { font-size: 1.8rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p {
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

a {
    color: var(--gfab-primary);
    text-decoration: none;
    transition: var(--gfab-transition);
}

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

/* Container */
.gfab-container {
    width: 100%;
    padding: 0 15px;
    max-width: 430px;
    margin: 0 auto;
}

/* Header */
.gfab-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    max-width: 430px;
    margin: 0 auto;
    background: linear-gradient(180deg, var(--gfab-dark) 0%, rgba(14, 22, 33, 0.95) 100%);
    padding: 12px 15px;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 165, 0, 0.2);
    transition: var(--gfab-transition);
}

.gfab-header.gfab-header-scrolled {
    background: rgba(14, 22, 33, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.gfab-header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gfab-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.gfab-logo img {
    height: 36px;
    width: auto;
}

.gfab-logo-text {
    font-size: 1.3rem;
    font-weight: 700;
    background: var(--gfab-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gfab-header-buttons {
    display: flex;
    gap: 10px;
}

.gfab-btn {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--gfab-transition);
    border: none;
    text-align: center;
}

.gfab-btn-primary {
    background: var(--gfab-gradient);
    color: var(--gfab-dark);
    box-shadow: var(--gfab-shadow);
}

.gfab-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 165, 0, 0.4);
}

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

.gfab-btn-outline:hover {
    background: var(--gfab-primary);
    color: var(--gfab-dark);
}

.gfab-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--gfab-light);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Main Content */
main {
    padding-top: 70px;
    padding-bottom: 80px;
}

/* Hero Carousel */
.gfab-hero {
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
}

.gfab-carousel {
    position: relative;
    height: 200px;
}

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

.gfab-carousel-slide.gfab-slide-active {
    opacity: 1;
}

.gfab-carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
}

.gfab-carousel-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 15px;
    background: linear-gradient(transparent, rgba(14, 22, 33, 0.9));
}

.gfab-carousel-title {
    font-size: 1.4rem;
    margin-bottom: 5px;
    color: var(--gfab-secondary);
}

.gfab-carousel-desc {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Section Styles */
.gfab-section {
    padding: 25px 15px;
}

.gfab-section-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--gfab-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

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

/* Category Tabs */
.gfab-category-tabs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 10px;
    margin-bottom: 15px;
    scrollbar-width: none;
}

.gfab-category-tabs::-webkit-scrollbar {
    display: none;
}

.gfab-category-tab {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 165, 0, 0.3);
    border-radius: 20px;
    color: var(--gfab-light);
    font-size: 0.85rem;
    white-space: nowrap;
    cursor: pointer;
    transition: var(--gfab-transition);
}

.gfab-category-tab:hover,
.gfab-category-tab.gfab-tab-active {
    background: var(--gfab-gradient);
    color: var(--gfab-dark);
    border-color: transparent;
}

/* Game Grid */
.gfab-game-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.gfab-game-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--gfab-radius);
    overflow: hidden;
    transition: var(--gfab-transition);
    cursor: pointer;
}

.gfab-game-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--gfab-shadow);
}

.gfab-game-img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.gfab-game-info {
    padding: 8px;
    text-align: center;
}

.gfab-game-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gfab-light);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gfab-game-badge {
    position: absolute;
    top: 5px;
    right: 5px;
    background: var(--gfab-gradient);
    color: var(--gfab-dark);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 700;
}

/* Promotional Banner */
.gfab-promo-banner {
    background: var(--gfab-gradient);
    border-radius: var(--gfab-radius);
    padding: 20px;
    margin: 20px 15px;
    text-align: center;
}

.gfab-promo-title {
    color: var(--gfab-dark);
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.gfab-promo-desc {
    color: var(--gfab-dark);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.gfab-promo-btn {
    background: var(--gfab-dark);
    color: var(--gfab-primary);
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 700;
    display: inline-block;
}

/* Features Section */
.gfab-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    padding: 20px 15px;
}

.gfab-feature-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--gfab-radius);
    padding: 20px 15px;
    text-align: center;
    border: 1px solid rgba(255, 165, 0, 0.2);
}

.gfab-feature-icon {
    font-size: 2rem;
    color: var(--gfab-primary);
    margin-bottom: 10px;
}

.gfab-feature-title {
    font-size: 1rem;
    margin-bottom: 5px;
}

.gfab-feature-desc {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Footer */
.gfab-footer {
    background: rgba(0, 0, 0, 0.3);
    padding: 30px 15px;
    padding-bottom: 100px;
}

.gfab-footer-logo {
    text-align: center;
    margin-bottom: 20px;
}

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

.gfab-footer-links a {
    color: var(--gfab-light);
    font-size: 0.85rem;
}

.gfab-footer-links a:hover {
    color: var(--gfab-primary);
}

.gfab-partners {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.gfab-partner-logo {
    height: 30px;
    opacity: 0.7;
    transition: var(--gfab-transition);
}

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

.gfab-copyright {
    text-align: center;
    font-size: 0.8rem;
    opacity: 0.7;
}

/* Mobile Bottom Navigation */
.gfab-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 430px;
    margin: 0 auto;
    background: linear-gradient(180deg, rgba(14, 22, 33, 0.98) 0%, var(--gfab-dark) 100%);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 8px 5px;
    z-index: 1000;
    border-top: 1px solid rgba(255, 165, 0, 0.3);
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
}

.gfab-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 12px;
    color: var(--gfab-light);
    text-decoration: none;
    transition: var(--gfab-transition);
    min-width: 60px;
    min-height: 60px;
    border-radius: 12px;
}

.gfab-nav-item:hover,
.gfab-nav-item.gfab-nav-active {
    background: rgba(255, 165, 0, 0.15);
    color: var(--gfab-primary);
}

.gfab-nav-icon {
    font-size: 24px;
    margin-bottom: 4px;
}

.gfab-nav-text {
    font-size: 10px;
    font-weight: 500;
}

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

.gfab-mobile-menu.gfab-menu-active {
    right: 0;
}

.gfab-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: var(--gfab-transition);
}

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

.gfab-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 165, 0, 0.3);
}

.gfab-menu-close {
    background: none;
    border: none;
    color: var(--gfab-light);
    font-size: 1.5rem;
    cursor: pointer;
}

.gfab-menu-links {
    list-style: none;
}

.gfab-menu-links li {
    margin-bottom: 5px;
}

.gfab-menu-links a {
    display: block;
    padding: 12px 15px;
    color: var(--gfab-light);
    border-radius: 8px;
    transition: var(--gfab-transition);
}

.gfab-menu-links a:hover {
    background: rgba(255, 165, 0, 0.2);
    color: var(--gfab-primary);
}

/* Scroll to Top */
.gfab-scroll-top {
    position: fixed;
    bottom: 80px;
    right: 15px;
    width: 45px;
    height: 45px;
    background: var(--gfab-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gfab-dark);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--gfab-transition);
    z-index: 999;
    box-shadow: var(--gfab-shadow);
}

.gfab-scroll-top.gfab-scroll-visible {
    opacity: 1;
    visibility: visible;
}

/* Internal Links */
.gfab-internal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 15px 0;
}

.gfab-internal-link {
    color: var(--gfab-primary);
    font-size: 0.9rem;
    text-decoration: underline;
}

.gfab-internal-link:hover {
    color: var(--gfab-secondary);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    main {
        padding-bottom: 90px;
    }
}

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

    main {
        padding-bottom: 30px;
    }

    .gfab-footer {
        padding-bottom: 30px;
    }
}

/* Utility Classes */
.gfab-text-center { text-align: center; }
.gfab-text-primary { color: var(--gfab-primary); }
.gfab-text-secondary { color: var(--gfab-secondary); }
.gfab-mt-20 { margin-top: 20px; }
.gfab-mb-20 { margin-bottom: 20px; }
.gfab-hidden { display: none; }

/* Animation */
@keyframes gfabpulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.gfab-pulse {
    animation: gfabpulse 2s infinite;
}