/* ==========================================================================
   playnova_nebula — Layout (header, grid, footer, responsive)
   ========================================================================== */

/* —— Site header & navigation —— */
.site-header {
    position: sticky;
    top: 0;
    z-index: 200;
    padding: 0.65rem 0;
    background: rgba(7, 11, 20, 0.55);
    backdrop-filter: blur(24px) saturate(1.2);
    -webkit-backdrop-filter: blur(24px) saturate(1.2);
    border-bottom: 1px solid transparent;
    transition: background var(--duration-normal) var(--ease-out),
        border-color var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-out);
}

.site-header::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(124, 92, 255, 0.35) 20%,
        rgba(0, 229, 204, 0.25) 50%,
        rgba(255, 107, 157, 0.2) 80%,
        transparent
    );
    opacity: 0.85;
    pointer-events: none;
}

.site-header.is-scrolled {
    background: rgba(7, 11, 20, 0.92);
    border-bottom-color: var(--color-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Logo */
.logo-container {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.45rem 0.85rem 0.45rem 0.55rem;
    background: linear-gradient(135deg, rgba(124, 92, 255, 0.12), rgba(0, 229, 204, 0.06));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    color: inherit;
    transition: transform var(--duration-fast) var(--ease-out),
        box-shadow var(--duration-fast) var(--ease-out),
        border-color var(--duration-fast) var(--ease-out);
}

.logo-container:hover {
    transform: translateY(-1px);
    border-color: rgba(124, 92, 255, 0.45);
    box-shadow: 0 4px 28px var(--color-glow-primary);
    color: inherit;
}

.logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    font-size: 1rem;
    line-height: 1;
    color: #fff;
    background: linear-gradient(145deg, var(--color-primary), #5a3fd4);
    border-radius: 10px;
    box-shadow: 0 0 16px var(--color-glow-primary);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    text-transform: capitalize;
    background: linear-gradient(90deg, #fff 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.logo-badge {
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 0.2rem 0.45rem;
    border-radius: 999px;
    line-height: 1.2;
}

/* Nav */
.site-nav {
    position: relative;
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 0.25rem;
    margin: 0;
    padding: 0.3rem;
    background: rgba(15, 22, 41, 0.65);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.5rem 1.1rem;
    border-radius: 999px;
    color: var(--color-text-muted);
    border: 1px solid transparent;
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out),
        background var(--duration-fast) var(--ease-out),
        border-color var(--duration-fast) var(--ease-out),
        box-shadow var(--duration-fast) var(--ease-out),
        transform var(--duration-fast) var(--ease-out);
}

.nav-link:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.08);
}

.nav-link.is-active {
    color: #fff;
    background: linear-gradient(135deg, var(--color-primary) 0%, #6348e8 100%);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 2px 16px var(--color-glow-primary);
}

.nav-link.is-active:hover {
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 22px var(--color-glow-primary);
}

/* Hamburger */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0.5rem;
    background: rgba(15, 22, 41, 0.8);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    cursor: pointer;
    transition: background var(--duration-fast), border-color var(--duration-fast);
}

.menu-toggle:hover {
    border-color: rgba(124, 92, 255, 0.5);
    background: rgba(124, 92, 255, 0.15);
}

.menu-toggle__bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--duration-fast) var(--ease-out),
        opacity var(--duration-fast) var(--ease-out);
}

.menu-toggle.is-open .menu-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open .menu-toggle__bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.menu-toggle.is-open .menu-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Legacy: pages still using #menu-toggle without .menu-toggle class */
#menu-toggle:not(.menu-toggle) {
    display: none;
}

/* Hero / intro */
.hero-banner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md) 0 var(--spacing-lg);
}

.hero-banner__visual {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: var(--border-width) solid var(--color-border);
    box-shadow: var(--shadow-soft), 0 0 48px var(--color-glow-primary);
}

.hero-banner__visual img {
    width: 100%;
    height: auto;
    display: block;
    border: none;
    border-radius: 0;
}

.hero-banner__copy {
    text-align: left;
}

.magazine-intro {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    text-align: center;
}

.magazine-intro h1 {
    font-size: clamp(2.25rem, 6vw, 4rem);
    line-height: 1.15;
    margin-bottom: var(--spacing-sm);
}

.magazine-intro .hero-highlight {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.magazine-intro .hero-lead {
    max-width: 560px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--color-text-muted);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    background: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
}

/* Category filters */
.filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
    justify-content: center;
}

/* Game grid — masonry-style bento */
.magazine-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0 var(--spacing-md);
}

.grid-item {
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
    background: var(--color-surface);
    backdrop-filter: blur(12px);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm);
    transition: transform var(--duration-fast) var(--ease-out),
        box-shadow var(--duration-fast) var(--ease-out),
        border-color var(--duration-fast) var(--ease-out);
}

.grid-item:hover {
    transform: translateY(-4px);
    border-color: rgba(124, 92, 255, 0.4);
    box-shadow: var(--shadow-soft), 0 0 32px var(--color-glow-primary);
}

.grid-item-featured {
    grid-column: span 2;
    grid-row: span 2;
    background: linear-gradient(145deg, rgba(124, 92, 255, 0.12), rgba(0, 229, 204, 0.06));
}

.grid-item-wide {
    grid-column: span 2;
}

/* SEO section */
.seo-content {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    background: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
}

.seo-content h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.seo-content .seo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-sm);
}

.seo-card {
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-md);
    background: var(--color-bg-elevated);
    border: var(--border-width) solid var(--color-border);
    transition: border-color var(--duration-fast);
}

.seo-card:hover {
    border-color: var(--color-primary);
}

.seo-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--color-secondary);
}

/* Footer */
.site-footer {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
    border-top: var(--border-width) solid var(--color-border);
    background: var(--color-bg-elevated);
}

.site-footer .container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.site-footer h3,
.site-footer h4 {
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.site-footer p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.site-footer ul {
    list-style: none;
}

.site-footer li {
    margin-bottom: 0.35rem;
}

.site-footer a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.site-footer a:hover {
    color: var(--color-secondary);
}

/* Legal / static pages */
.page-narrow {
    max-width: 800px;
    padding: var(--spacing-lg) var(--spacing-sm);
}

.page-narrow h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-sm);
}

.page-narrow h3 {
    margin-top: var(--spacing-md);
    margin-bottom: 0.5rem;
    color: var(--color-secondary);
}

.page-narrow p {
    margin-bottom: 1rem;
    color: var(--color-text-muted);
}

/* Detail page layout */
.game-detail-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.game-header {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-end;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.game-header__meta {
    flex: 1;
    min-width: 0;
    max-width: 100%;
}

.game-detail-title {
    font-size: clamp(1.35rem, 5vw, 2.5rem);
    line-height: 1.2;
    margin: 0.5rem 0 0;
    overflow-wrap: anywhere;
    word-break: break-word;
    hyphens: auto;
}

.game-player-frame {
    width: 100%;
    height: 560px;
    background: var(--color-bg-elevated);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft), 0 0 48px var(--color-glow-primary);
}

.game-player-frame iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.article-content {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    background: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
}

.article-content h2 {
    font-size: 1.5rem;
    margin-top: var(--spacing-md);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-text);
}

.sidebar-related h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.blog-hero {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.blog-hero-with-art {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--spacing-md);
    align-items: center;
    text-align: left;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.blog-hero-with-art .blog-hero-art {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: var(--border-width) solid var(--color-border);
    box-shadow: var(--shadow-soft);
}

.blog-hero-with-art .blog-hero-art img {
    width: 100%;
    height: auto;
    border: none;
    border-radius: 0;
}

.page-illustration {
    margin: var(--spacing-sm) 0 var(--spacing-md);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: var(--border-width) solid var(--color-border);
    box-shadow: var(--shadow-soft);
}

.page-illustration img {
    width: 100%;
    height: auto;
    border: none;
    border-radius: 0;
}

.grid-loading-art {
    width: 120px;
    height: 120px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    overflow: hidden;
    border: var(--border-width) solid var(--color-border);
}

.grid-loading-art img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: none;
}

.blog-hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

.article-body {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    background: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-muted);
}

.article-body h2 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
    padding-left: 1rem;
    border-left: 3px solid var(--color-primary);
}

.article-body p {
    margin-bottom: 1.25rem;
}

.article-meta {
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

@media (max-width: 1024px) {
    .magazine-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-item-featured {
        grid-column: span 2;
        grid-row: span 1;
    }

    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .hero-banner,
    .blog-hero-with-art {
        grid-template-columns: 1fr;
    }

    .hero-banner__copy {
        text-align: center;
    }

    .blog-hero-with-art {
        text-align: center;
    }
}

@media (max-width: 768px) {
    body {
        background-attachment: scroll;
    }

    body.nav-open {
        overflow: hidden;
    }

    .menu-toggle,
    #menu-toggle.menu-toggle {
        display: flex;
    }

    .nav-menu,
    .site-nav ul {
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0.35rem;
        position: fixed;
        top: calc(3.5rem + env(safe-area-inset-top, 0px));
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        padding: 0.75rem;
        background: rgba(11, 16, 30, 0.98);
        border: 1px solid var(--color-border);
        border-radius: var(--border-radius-lg);
        box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 40px var(--color-glow-primary);
        z-index: 199;
        animation: navDropIn var(--duration-normal) var(--ease-out) both;
    }

    .site-nav.active .nav-menu,
    .site-nav.active ul {
        display: flex;
    }

    .nav-link {
        justify-content: center;
        padding: 0.75rem 1rem;
        border-radius: var(--border-radius-sm);
    }

    .logo-text {
        font-size: 1.05rem;
    }

    .logo-badge {
        display: none;
    }
}

@keyframes navDropIn {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

    .game-detail-container {
        grid-template-columns: 1fr;
    }

    .game-player-frame {
        height: 380px;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .magazine-grid {
        grid-template-columns: 1fr;
    }

    .grid-item-featured,
    .grid-item-wide {
        grid-column: span 1;
    }

    .site-footer .container {
        grid-template-columns: 1fr;
    }
}