/* ============================================================
 * d9d9 game - core stylesheet
 * All custom classes use prefix: s474-
 * Palette: #66CDAA | #228B22 | #FFF176 | #32CD32 | #1C2833
 * Mobile-first canvas (320-430px), centered on wider screens.
 * ============================================================ */

:root {
    --s474-bg: #1C2833;
    --s474-bg-2: #15202b;
    --s474-bg-3: #22323f;
    --s474-primary: #66CDAA;
    --s474-primary-2: #32CD32;
    --s474-deep: #228B22;
    --s474-gold: #FFF176;
    --s474-text: #f3fff8;
    --s474-muted: #9fc4b8;
    --s474-border: #2f4754;
    --s474-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--s474-bg);
    color: var(--s474-text);
    font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.55;
    -webkit-text-size-adjust: 100%;
}

img { max-width: 100%; display: block; }
a { color: var(--s474-primary); text-decoration: none; }
a:hover { color: var(--s474-gold); }

.s474-wrap {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    background: var(--s474-bg);
    min-height: 100vh;
    padding-bottom: 84px;
}

/* ---------- Header ---------- */
.s474-header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 10px 12px;
    background: linear-gradient(135deg, #1b2c26 0%, #15202b 100%);
    border-bottom: 1px solid var(--s474-border);
}

.s474-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}
.s474-brand .s474-logo {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    object-fit: cover;
    background: var(--s474-bg-3);
    border: 1px solid var(--s474-primary);
    flex: 0 0 auto;
}
.s474-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    min-width: 0;
}
.s474-brand-text strong {
    color: var(--s474-gold);
    font-size: 16px;
    letter-spacing: 0.3px;
}
.s474-brand-text span {
    color: var(--s474-muted);
    font-size: 11px;
}

.s474-head-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}
.s474-btn {
    border: none;
    border-radius: 20px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s;
    color: #0c1208;
    min-height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.s474-btn:active { transform: scale(0.96); }
.s474-btn-login {
    background: var(--s474-primary);
    box-shadow: 0 4px 12px rgba(102, 205, 170, 0.35);
}
.s474-btn-register {
    background: linear-gradient(135deg, var(--s474-gold), #f7c948);
    box-shadow: 0 4px 12px rgba(255, 241, 118, 0.4);
}

.s474-menu-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--s474-border);
    background: var(--s474-bg-3);
    color: var(--s474-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
.s474-menu-btn span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--s474-primary);
    position: relative;
}
.s474-menu-btn span:before,
.s474-menu-btn span:after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: var(--s474-primary);
}
.s474-menu-btn span:before { top: -6px; }
.s474-menu-btn span:after { top: 6px; }

/* ---------- Side menu ---------- */
.s474-menu-mask {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease;
    z-index: 90;
}
.s474-menu-mask.s474-show { opacity: 1; visibility: visible; }

.s474-side-menu {
    position: fixed;
    top: 0;
    right: -78%;
    width: 78%;
    max-width: 320px;
    height: 100%;
    background: var(--s474-bg-2);
    border-left: 1px solid var(--s474-border);
    z-index: 100;
    transition: right 0.28s ease;
    overflow-y: auto;
    padding: 16px 14px 60px;
}
.s474-side-menu.s474-open { right: 0; }
.s474-side-menu h4 {
    margin: 14px 0 8px;
    color: var(--s474-gold);
    font-size: 14px;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}
.s474-side-menu a {
    display: block;
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--s474-text);
    background: var(--s474-bg-3);
    margin-bottom: 6px;
    border: 1px solid transparent;
}
.s474-side-menu a:hover { border-color: var(--s474-primary); color: var(--s474-primary); }
.s474-side-menu .s474-close {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--s474-muted);
    font-size: 13px;
    margin-bottom: 8px;
    background: transparent;
    padding: 0;
}
.s474-side-promo {
    margin-top: 14px;
    background: linear-gradient(135deg, var(--s474-deep), var(--s474-primary-2));
    color: #06140a;
    text-align: center;
    padding: 14px;
    border-radius: 14px;
    font-weight: 700;
}

/* ---------- Hero carousel ---------- */
.s474-hero {
    position: relative;
    margin: 12px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--s474-shadow);
    background: var(--s474-bg-3);
}
.s474-slide {
    display: none;
    position: relative;
    min-height: 168px;
}
.s474-slide.s474-active { display: block; }
.s474-slide img {
    width: 100%;
    height: 168px;
    object-fit: cover;
}
.s474-slide-cap {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    padding: 28px 14px 14px;
    background: linear-gradient(to top, rgba(8,14,10,0.85), transparent);
    color: var(--s474-text);
}
.s474-slide-cap b { color: var(--s474-gold); font-size: 16px; }
.s474-slide-cap p { margin: 4px 0 0; font-size: 12px; color: var(--s474-muted); }
.s474-hero-cta {
    position: absolute;
    right: 12px;
    top: 12px;
    background: var(--s474-gold);
    color: #1a1500;
    border: none;
    padding: 8px 14px;
    border-radius: 18px;
    font-weight: 700;
    font-size: 12px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.35);
}
.s474-dots {
    position: absolute;
    bottom: 8px;
    right: 12px;
    display: flex;
    gap: 6px;
}
.s474-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.45);
    border: none;
    padding: 0;
    cursor: pointer;
}
.s474-dot.s474-active { background: var(--s474-gold); }

/* ---------- Marquee ticker ---------- */
.s474-ticker {
    margin: 0 12px 10px;
    background: var(--s474-bg-2);
    border: 1px solid var(--s474-border);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    font-size: 12px;
}
.s474-ticker .s474-tag {
    background: var(--s474-gold);
    color: #1a1500;
    font-weight: 700;
    padding: 6px 10px;
    border-radius: 10px 0 0 10px;
}
.s474-mq {
    flex: 1;
    overflow: hidden;
    white-space: nowrap;
    padding: 6px 8px;
}
.s474-mq-track {
    display: inline-block;
    padding-left: 100%;
}
.s474-mq-track.s474-running {
    animation: s474mqscroll 22s linear infinite;
}
@keyframes s474mqscroll {
    from { transform: translateX(0); }
    to { transform: translateX(-100%); }
}

/* ---------- Search box ---------- */
.s474-search {
    margin: 10px 12px 4px;
    display: flex;
    align-items: center;
    background: var(--s474-bg-3);
    border: 1px solid var(--s474-border);
    border-radius: 24px;
    padding: 6px 12px;
}
.s474-search input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--s474-text);
    font-size: 13px;
    outline: none;
    min-width: 0;
}
.s474-search .s474-ico { color: var(--s474-primary); font-size: 16px; }

/* ---------- Category tabs ---------- */
.s474-cat-tabs {
    display: flex;
    gap: 6px;
    padding: 8px 12px;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}
.s474-cat-tabs::-webkit-scrollbar { display: none; }
.s474-cat-tab {
    flex: 0 0 auto;
    padding: 7px 14px;
    border-radius: 18px;
    background: var(--s474-bg-3);
    color: var(--s474-muted);
    border: 1px solid var(--s474-border);
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
}
.s474-cat-tab.s474-active {
    background: linear-gradient(135deg, var(--s474-deep), var(--s474-primary-2));
    color: #fff;
    border-color: transparent;
}

/* ---------- Section title ---------- */
.s474-section {
    margin: 14px 12px 6px;
}
.s474-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}
.s474-section-head h2 {
    margin: 0;
    font-size: 17px;
    color: var(--s474-gold);
    letter-spacing: 0.3px;
}
.s474-section-head .s474-more {
    font-size: 12px;
    color: var(--s474-primary);
}

/* ---------- Game grid ---------- */
.s474-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}
@media (min-width: 360px) {
    .s474-grid { gap: 9px; }
}
@media (min-width: 400px) {
    .s474-grid { grid-template-columns: repeat(5, 1fr); }
}

.s474-game-card {
    background: var(--s474-bg-2);
    border: 1px solid var(--s474-border);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    transition: transform 0.15s ease, border-color 0.15s ease;
}
.s474-game-card:active { transform: scale(0.97); border-color: var(--s474-primary); }
.s474-game-card .s474-thumb {
    position: relative;
    aspect-ratio: 1 / 1;
    background: linear-gradient(135deg, #1c2c33, #23363f);
    overflow: hidden;
}
.s474-game-card .s474-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.35s ease;
}
.s474-game-card.s474-loaded .s474-thumb img { opacity: 1; }
.s474-game-card .s474-play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(8,14,10,0.4);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    opacity: 0;
    transition: opacity 0.15s;
}
.s474-game-card:active .s474-play { opacity: 1; }
.s474-game-card .s474-title {
    padding: 5px 6px 6px;
    font-size: 11px;
    color: var(--s474-text);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.s474-badge {
    position: absolute;
    top: 4px;
    left: 4px;
    background: var(--s474-gold);
    color: #1a1500;
    font-size: 9px;
    font-weight: 800;
    padding: 2px 5px;
    border-radius: 6px;
    letter-spacing: 0.3px;
}
.s474-badge.hot { background: #ff5a5a; color: #fff; }

/* ---------- Promotional CTA banner ---------- */
.s474-cta {
    margin: 16px 12px;
    border-radius: 16px;
    padding: 18px 16px;
    background: linear-gradient(135deg, #1f3a2c 0%, #228B22 60%, #66CDAA 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: var(--s474-shadow);
}
.s474-cta h3 {
    margin: 0 0 6px;
    font-size: 18px;
    color: var(--s474-gold);
}
.s474-cta p { margin: 0 0 12px; font-size: 13px; color: #eafff3; }
.s474-cta .s474-btn-go {
    background: var(--s474-gold);
    color: #1a1500;
    border: none;
    padding: 10px 18px;
    border-radius: 22px;
    font-weight: 800;
    font-size: 13px;
    cursor: pointer;
}

/* ---------- Feature cards ---------- */
.s474-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin: 10px 12px;
}
.s474-feature {
    background: var(--s474-bg-2);
    border: 1px solid var(--s474-border);
    border-radius: 14px;
    padding: 14px 12px;
}
.s474-feature .s474-ic {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: rgba(102, 205, 170, 0.18);
    color: var(--s474-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 8px;
}
.s474-feature h4 { margin: 0 0 4px; font-size: 14px; color: var(--s474-gold); }
.s474-feature p { margin: 0; font-size: 12px; color: var(--s474-muted); }

/* ---------- Article / SEO content ---------- */
.s474-content {
    margin: 14px 12px;
    background: var(--s474-bg-2);
    border: 1px solid var(--s474-border);
    border-radius: 16px;
    padding: 16px 14px;
}
.s474-content h1 {
    color: var(--s474-gold);
    margin: 0 0 12px;
    font-size: 22px;
    line-height: 1.22;
}
.s474-content h2 {
    color: var(--s474-gold);
    margin: 18px 0 8px;
    font-size: 17px;
}
.s474-content h2:first-child { margin-top: 0; }
.s474-content h3 { color: var(--s474-primary); margin: 14px 0 6px; font-size: 15px; }
.s474-content p { margin: 0 0 10px; color: var(--s474-text); font-size: 14px; }
.s474-content ul { margin: 0 0 10px; padding-left: 18px; }
.s474-content li { margin-bottom: 4px; color: var(--s474-text); font-size: 13px; }
.s474-content a { color: var(--s474-primary-2); text-decoration: underline; }
.s474-tags { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.s474-tags span {
    font-size: 11px;
    padding: 4px 9px;
    border-radius: 12px;
    background: var(--s474-bg-3);
    color: var(--s474-muted);
    border: 1px solid var(--s474-border);
}

/* ---------- Inline link list ---------- */
.s474-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin: 10px 12px;
}
.s474-links a {
    display: block;
    padding: 10px 12px;
    background: var(--s474-bg-2);
    border: 1px solid var(--s474-border);
    border-radius: 10px;
    color: var(--s474-text);
    font-size: 12px;
}
.s474-links a:hover { border-color: var(--s474-primary); color: var(--s474-primary); }

/* ---------- FAQ ---------- */
.s474-faq details {
    background: var(--s474-bg-2);
    border: 1px solid var(--s474-border);
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 8px;
}
.s474-faq summary {
    cursor: pointer;
    font-weight: 700;
    color: var(--s474-gold);
    font-size: 14px;
    list-style: none;
}
.s474-faq summary::-webkit-details-marker { display: none; }
.s474-faq p { margin: 8px 0 0; font-size: 13px; color: var(--s474-text); }

/* ---------- Footer ---------- */
.s474-footer {
    background: var(--s474-bg-2);
    border-top: 1px solid var(--s474-border);
    padding: 18px 14px 22px;
    color: var(--s474-muted);
}
.s474-footer h5 { color: var(--s474-gold); margin: 0 0 8px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; }
.s474-footer p { font-size: 12px; margin: 0 0 8px; }
.s474-footer a { color: var(--s474-muted); display: block; padding: 3px 0; font-size: 12px; }
.s474-footer a:hover { color: var(--s474-primary); }
.s474-footer-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.s474-footer-bottom {
    text-align: center;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--s474-border);
    font-size: 11px;
    color: var(--s474-muted);
}

/* ---------- Back to top ---------- */
.s474-totop {
    position: fixed;
    right: 14px;
    bottom: 96px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--s474-primary);
    color: #0c1208;
    border: none;
    box-shadow: var(--s474-shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    cursor: pointer;
    z-index: 40;
}

/* ---------- Bottom navigation ---------- */
.s474-bottom-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0 auto;
    max-width: 480px;
    background: linear-gradient(180deg, #1b2c26, #11181e);
    border-top: 1px solid var(--s474-border);
    display: flex;
    z-index: 60;
    padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
}
.s474-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 4px 2px;
    color: var(--s474-muted);
    cursor: pointer;
    font-size: 10px;
    border: none;
    background: transparent;
    text-decoration: none;
    min-height: 44px;
}
.s474-nav-item .s474-nav-ic {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.s474-nav-item .s474-nav-ic svg { width: 22px; height: 22px; display: block; }
.s474-nav-item.s474-active { color: var(--s474-gold); }
.s474-nav-item.s474-active .s474-nav-ic { color: var(--s474-gold); }
.s474-nav-item.s474-promo {
    color: var(--s474-primary-2);
}
.s474-nav-item.s474-promo .s474-nav-ic {
    background: rgba(255, 241, 118, 0.12);
    border-radius: 50%;
}
.s474-nav-item.s474-fab {
    position: relative;
    top: -10px;
}
.s474-nav-item.s474-fab .s474-nav-ic {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--s474-gold), #f7c948);
    color: #1a1500;
    box-shadow: 0 6px 14px rgba(255, 241, 118, 0.45);
}
.s474-nav-item.s474-fab .s474-nav-ic svg { width: 24px; height: 24px; }
.s474-nav-item span.lbl { font-weight: 600; }

/* ---------- Accessibility and compact viewport safeguards ---------- */
.s474-btn:focus-visible,
.s474-menu-btn:focus-visible,
.s474-cat-tab:focus-visible,
.s474-nav-item:focus-visible,
.s474-game-card:focus-visible,
.s474-side-menu a:focus-visible,
.s474-content a:focus-visible,
.s474-links a:focus-visible { outline: 2px solid var(--s474-gold); outline-offset: 2px; }
.s474-game-card .s474-play { pointer-events: none; }
.s474-content ol { margin: 0 0 10px; padding-left: 20px; }
.s474-content strong { color: #ffffff; }
.s474-hero + .s474-ticker { min-height: 30px; }
@media (max-width: 340px) {
    .s474-header { padding-left: 8px; padding-right: 8px; gap: 4px; }
    .s474-head-actions { gap: 4px; }
    .s474-btn { padding-left: 9px; padding-right: 9px; font-size: 12px; }
    .s474-brand-text span { display: none; }
    .s474-grid { gap: 6px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* Desktop: hide bottom nav is unnecessary since canvas is centered; keep visible */