/* Bigwin Link - Design Stylesheet */
/* All classes use ui3d- prefix */
/* Color palette: #004D40 (primary) | #DCDCDC (light/text) | #2C2C2C (dark/bg) */

:root {
    --ui3d-primary: #004D40;
    --ui3d-primary-light: #00796B;
    --ui3d-primary-dark: #00332B;
    --ui3d-bg: #2C2C2C;
    --ui3d-bg-light: #3A3A3A;
    --ui3d-bg-card: #353535;
    --ui3d-text: #DCDCDC;
    --ui3d-text-muted: #9E9E9E;
    --ui3d-accent: #FFD54F;
    --ui3d-accent-hover: #FFCA28;
    --ui3d-border: #4A4A4A;
    --ui3d-radius: 8px;
    --ui3d-radius-lg: 12px;
    --ui3d-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --ui3d-transition: all 0.3s ease;
    font-size: 62.5%;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--ui3d-bg);
    color: var(--ui3d-text);
    font-size: 1.6rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    max-width: 430px;
    margin: 0 auto;
    position: relative;
    overflow-x: hidden;
}

a { color: var(--ui3d-accent); text-decoration: none; transition: var(--ui3d-transition); }
a:hover { color: var(--ui3d-accent-hover); }

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

/* Container & Layout */
.ui3d-container { width: 100%; max-width: 430px; margin: 0 auto; padding: 0 1.2rem; }
.ui3d-wrapper { padding: 1.6rem 0; }
.ui3d-section { padding: 2.4rem 1.2rem; }
.ui3d-grid { display: grid; gap: 1.2rem; }
.ui3d-grid-2 { grid-template-columns: repeat(2, 1fr); }
.ui3d-grid-3 { grid-template-columns: repeat(3, 1fr); }
.ui3d-grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Header */
.ui3d-header {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 430px;
    background: var(--ui3d-primary);
    padding: 0.8rem 1.2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
    box-shadow: var(--ui3d-shadow);
}
.ui3d-header-left { display: flex; align-items: center; gap: 0.8rem; }
.ui3d-header-logo { width: 36px; height: 36px; border-radius: 6px; }
.ui3d-header-title { font-size: 1.8rem; font-weight: 700; color: #fff; white-space: nowrap; }
.ui3d-header-actions { display: flex; gap: 0.6rem; align-items: center; }
.ui3d-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.4rem;
    border: none;
    border-radius: var(--ui3d-radius);
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ui3d-transition);
    text-decoration: none;
    white-space: nowrap;
}
.ui3d-btn:hover { transform: translateY(-1px); }
.ui3d-btn-register {
    background: var(--ui3d-accent);
    color: var(--ui3d-primary-dark);
}
.ui3d-btn-register:hover { background: var(--ui3d-accent-hover); color: var(--ui3d-primary-dark); }
.ui3d-btn-login {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255,255,255,0.5);
}
.ui3d-btn-login:hover { background: rgba(255,255,255,0.1); border-color: #fff; color: #fff; }
.ui3d-menu-toggle {
    background: none;
    border: none;
    color: #fff;
    font-size: 2.2rem;
    cursor: pointer;
    padding: 0.4rem;
    display: flex;
    align-items: center;
}

/* Mobile Menu */
.ui3d-mobile-menu {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100%;
    background: var(--ui3d-bg);
    z-index: 9999;
    transition: right 0.35s ease;
    padding: 2rem 1.6rem;
    overflow-y: auto;
}
.ui3d-mobile-menu.ui3d-menu-active { right: 0; }
.ui3d-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 9998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}
.ui3d-menu-overlay.ui3d-overlay-active { opacity: 1; pointer-events: all; }
.ui3d-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--ui3d-border);
}
.ui3d-menu-header h3 { font-size: 1.8rem; color: var(--ui3d-accent); }
.ui3d-menu-close { background: none; border: none; color: var(--ui3d-text); font-size: 2rem; cursor: pointer; }
.ui3d-menu-links { list-style: none; }
.ui3d-menu-links li { margin-bottom: 0.4rem; }
.ui3d-menu-links a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--ui3d-radius);
    color: var(--ui3d-text);
    font-size: 1.5rem;
    transition: var(--ui3d-transition);
}
.ui3d-menu-links a:hover { background: var(--ui3d-bg-light); color: var(--ui3d-accent); }
.ui3d-menu-links .ui3d-menu-icon { font-size: 2rem; width: 28px; text-align: center; }

/* Carousel */
.ui3d-carousel {
    position: relative;
    overflow: hidden;
    border-radius: var(--ui3d-radius-lg);
    margin-top: 0.8rem;
    cursor: pointer;
}
.ui3d-carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}
.ui3d-carousel-slide {
    min-width: 100%;
    position: relative;
}
.ui3d-carousel-slide img { width: 100%; height: 180px; object-fit: cover; }
.ui3d-carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    color: #fff;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 1.4rem;
    cursor: pointer;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ui3d-carousel-prev { left: 8px; }
.ui3d-carousel-next { right: 8px; }

/* Sections */
.ui3d-section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--ui3d-accent);
    margin-bottom: 1.4rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.ui3d-section-title i, .ui3d-section-title span.material-symbols-outlined {
    font-size: 2.2rem;
}
.ui3d-section-desc {
    color: var(--ui3d-text-muted);
    font-size: 1.4rem;
    margin-bottom: 1.6rem;
    line-height: 1.5;
}

/* Game Tabs */
.ui3d-tabs {
    display: flex;
    overflow-x: auto;
    gap: 0.6rem;
    padding-bottom: 0.8rem;
    margin-bottom: 1.2rem;
    -webkit-overflow-scrolling: touch;
}
.ui3d-tabs::-webkit-scrollbar { display: none; }
.ui3d-tab-btn {
    padding: 0.6rem 1.4rem;
    background: var(--ui3d-bg-light);
    color: var(--ui3d-text-muted);
    border: none;
    border-radius: 20px;
    font-size: 1.3rem;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--ui3d-transition);
}
.ui3d-tab-btn.ui3d-tab-active-btn {
    background: var(--ui3d-primary);
    color: #fff;
}
.ui3d-game-tab-content { display: none; }
.ui3d-game-tab-content.ui3d-tab-active { display: block; }

/* Game Cards */
.ui3d-card {
    background: var(--ui3d-bg-card);
    border-radius: var(--ui3d-radius);
    overflow: hidden;
    transition: var(--ui3d-transition);
    cursor: pointer;
    border: 1px solid var(--ui3d-border);
}
.ui3d-card:hover { transform: translateY(-3px); box-shadow: var(--ui3d-shadow); border-color: var(--ui3d-primary); }
.ui3d-card-img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    background: var(--ui3d-bg-light);
}
.ui3d-card-body { padding: 0.8rem; text-align: center; }
.ui3d-card-title { font-size: 1.2rem; font-weight: 600; color: var(--ui3d-text); line-height: 1.3; }
.ui3d-card-play {
    display: inline-block;
    padding: 0.3rem 1rem;
    background: var(--ui3d-primary);
    color: #fff;
    border-radius: 4px;
    font-size: 1.1rem;
    margin-top: 0.5rem;
}

/* Promo Buttons */
.ui3d-promo-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.ui3d-promo-btn {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.2rem;
    background: var(--ui3d-bg-card);
    border: 1px solid var(--ui3d-border);
    border-radius: var(--ui3d-radius);
    color: var(--ui3d-text);
    cursor: pointer;
    transition: var(--ui3d-transition);
}
.ui3d-promo-btn:hover { border-color: var(--ui3d-primary); background: var(--ui3d-bg-light); }
.ui3d-promo-btn i { font-size: 2.2rem; color: var(--ui3d-accent); }
.ui3d-promo-btn span { font-size: 1.3rem; font-weight: 500; }

/* Info Box */
.ui3d-info-box {
    background: linear-gradient(135deg, var(--ui3d-primary-dark), var(--ui3d-primary));
    border-radius: var(--ui3d-radius-lg);
    padding: 2rem;
    margin: 1.6rem 0;
}
.ui3d-info-box h3 { font-size: 1.8rem; color: #fff; margin-bottom: 1rem; }
.ui3d-info-box p { font-size: 1.4rem; color: rgba(255,255,255,0.85); margin-bottom: 0.8rem; line-height: 1.5; }
.ui3d-info-box .ui3d-btn { margin-top: 0.8rem; }

/* Footer */
.ui3d-footer {
    background: var(--ui3d-primary-dark);
    padding: 2.4rem 1.2rem 3rem;
    margin-top: 2rem;
}
.ui3d-footer-brand { text-align: center; margin-bottom: 2rem; }
.ui3d-footer-brand h3 { font-size: 2rem; color: #fff; margin-bottom: 0.6rem; }
.ui3d-footer-brand p { font-size: 1.3rem; color: rgba(255,255,255,0.7); line-height: 1.5; max-width: 320px; margin: 0 auto; }
.ui3d-footer-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
    margin: 1.6rem 0;
}
.ui3d-footer-btn {
    padding: 0.6rem 1.2rem;
    background: var(--ui3d-primary);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--ui3d-radius);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--ui3d-transition);
}
.ui3d-footer-btn:hover { background: var(--ui3d-primary-light); border-color: rgba(255,255,255,0.4); }
.ui3d-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem 1.4rem;
    justify-content: center;
    margin: 1.6rem 0;
}
.ui3d-footer-links a { color: rgba(255,255,255,0.6); font-size: 1.2rem; }
.ui3d-footer-links a:hover { color: var(--ui3d-accent); }
.ui3d-copyright {
    text-align: center;
    font-size: 1.2rem;
    color: rgba(255,255,255,0.4);
    margin-top: 1.6rem;
    padding-top: 1.2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Bottom Navigation */
.ui3d-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 430px;
    height: 62px;
    background: var(--ui3d-primary-dark);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.3);
    border-top: 1px solid rgba(255,255,255,0.1);
}
.ui3d-bottom-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    min-height: 56px;
    background: none;
    border: none;
    color: rgba(255,255,255,0.6);
    cursor: pointer;
    transition: var(--ui3d-transition);
    padding: 0.4rem;
    gap: 0.2rem;
}
.ui3d-bottom-btn:hover, .ui3d-bottom-btn:focus { color: var(--ui3d-accent); }
.ui3d-bottom-btn i,
.ui3d-bottom-btn span.material-symbols-outlined,
.ui3d-bottom-btn ion-icon {
    font-size: 22px;
}
.ui3d-bottom-btn span.material-symbols-outlined { font-size: 24px; }
.ui3d-bottom-btn ion-icon { font-size: 24px; }
.ui3d-bottom-btn-label {
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

/* Content spacing for fixed elements */
.ui3d-main { padding-top: 56px; }

/* Spacing utilities */
.ui3d-mt-1 { margin-top: 0.8rem; }
.ui3d-mt-2 { margin-top: 1.6rem; }
.ui3d-mb-1 { margin-bottom: 0.8rem; }
.ui3d-mb-2 { margin-bottom: 1.6rem; }
.ui3d-text-center { text-align: center; }

/* Partner logos */
.ui3d-partners {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    padding: 1.6rem 0;
}
.ui3d-partners img {
    height: 28px;
    opacity: 0.6;
    transition: var(--ui3d-transition);
    filter: grayscale(30%);
}
.ui3d-partners img:hover { opacity: 1; filter: grayscale(0); }

/* Feature list */
.ui3d-feature-list { list-style: none; }
.ui3d-feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--ui3d-border);
}
.ui3d-feature-list li:last-child { border-bottom: none; }
.ui3d-feature-list .ui3d-feature-icon { font-size: 2rem; color: var(--ui3d-primary-light); flex-shrink: 0; }
.ui3d-feature-list .ui3d-feature-text { font-size: 1.4rem; color: var(--ui3d-text); }
.ui3d-feature-list .ui3d-feature-text strong { color: var(--ui3d-accent); }

/* Article content */
.ui3d-article { padding: 1.6rem 1.2rem; max-width: 430px; margin: 0 auto; }
.ui3d-article h2 { font-size: 2rem; color: var(--ui3d-accent); margin: 2rem 0 1rem; }
.ui3d-article h3 { font-size: 1.7rem; color: var(--ui3d-text); margin: 1.6rem 0 0.8rem; }
.ui3d-article p { font-size: 1.5rem; color: var(--ui3d-text); margin-bottom: 1.2rem; line-height: 1.7; }
.ui3d-article ul { margin: 1rem 0 1.2rem 1.6rem; }
.ui3d-article li { font-size: 1.4rem; color: var(--ui3d-text-muted); margin-bottom: 0.6rem; line-height: 1.5; }

/* Responsive */
@media (min-width: 769px) {
    .ui3d-bottom-nav { display: none; }
}
@media (max-width: 768px) {
    .ui3d-main { padding-bottom: 80px; }
}