/* ============================================================
   GameHub — Layout
   ============================================================ */

/* ── Container ───────────────────────────────────────────── */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--sp-6);
}

@media (max-width: 768px) {
    .container { padding-inline: var(--sp-4); }
}

/* ── Page structure ──────────────────────────────────────── */
.main-content {
    flex: 1;
    padding-block: var(--sp-8);
}

/* ── Header / Nav ────────────────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-h);
    background: rgba(245, 245, 255, 0.88);
    backdrop-filter: blur(20px) saturate(1.5);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    align-items: center;
    gap: var(--sp-6);
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--sp-6);
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    text-decoration: none;
    flex-shrink: 0;
}

.nav-logo-icon {
    font-size: var(--fs-xl);
    color: var(--neon-cyan);
    line-height: 1;
}

.nav-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.nav-logo-brand {
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    color: var(--text-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.nav-logo-name {
    font-size: var(--fs-base);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* Nav links */
.nav-links {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
    list-style: none;
    margin: 0;
    flex: 1;
}

.nav-link {
    display: block;
    padding: var(--sp-2) var(--sp-4);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    border-radius: var(--r-md);
    transition: color var(--t-base), background var(--t-base);
    text-decoration: none;
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--bg-card-hover);
}

.nav-link.active {
    color: var(--neon-cyan);
}

/* Nav user area */
.nav-user {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    flex-shrink: 0;
}

/* User pill */
.user-pill {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-1) var(--sp-3) var(--sp-1) var(--sp-1);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-full);
    text-decoration: none;
    transition: border-color var(--t-base), background var(--t-base);
}

.user-pill:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
}

.user-avatar-sm {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.user-avatar-placeholder {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    color: var(--text-inverse);
    line-height: 1;
    flex-shrink: 0;
}

.user-pill-name {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--text-primary);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Hamburger */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: var(--sp-2);
    cursor: pointer;
    margin-left: auto;
    transition: border-color var(--t-base);
}

.nav-hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: transform var(--t-base), opacity var(--t-base), background var(--t-base);
}

.nav-hamburger:hover { border-color: var(--neon-cyan); }
.nav-hamburger:hover span { background: var(--neon-cyan); }

/* Mobile menu open state */
.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-hamburger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}
.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile Nav ──────────────────────────────────────────── */
@media (max-width: 768px) {
    .nav-hamburger {
        display: flex;
    }

    .nav-links,
    .nav-user {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        gap: var(--sp-2);
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border);
        padding: var(--sp-6);
        z-index: 99;
    }

    .nav-links.open,
    .nav-user.open {
        display: flex;
    }

    .nav-user.open {
        top: calc(var(--header-h) + 220px); /* below nav-links */
        border-top: 1px solid var(--border);
        flex-direction: row;
        flex-wrap: wrap;
    }

    .nav-links { gap: var(--sp-1); }
    .nav-link { padding: var(--sp-3) var(--sp-4); width: 100%; }
}

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding-block: var(--sp-12);
    margin-top: auto;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--sp-8);
    align-items: start;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
}

.footer-brand-name {
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    margin-left: var(--sp-2);
}

.footer-tagline {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    margin: 0;
}

.footer-nav {
    display: flex;
    gap: var(--sp-12);
}

.footer-nav ul {
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
    list-style: none;
}

.footer-nav a {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--t-base);
}

.footer-nav a:hover { color: var(--neon-cyan); }

.footer-copy {
    text-align: right;
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

.footer-copy p { color: var(--text-muted); }

@media (max-width: 768px) {
    .footer-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-nav {
        justify-content: center;
    }
    .footer-copy {
        text-align: center;
    }
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
    text-align: center;
    padding-block: var(--sp-16) var(--sp-12);
    position: relative;
}

.hero-title {
    font-size: clamp(var(--fs-3xl), 6vw, var(--fs-5xl));
    font-weight: var(--fw-black);
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--sp-4);
    background: linear-gradient(135deg, var(--text-primary) 40%, var(--neon-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    font-size: var(--fs-lg);
    color: var(--text-secondary);
    max-width: 480px;
    margin-inline: auto;
    margin-bottom: var(--sp-8);
}

.hero-actions {
    display: flex;
    gap: var(--sp-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* ── Games Grid ──────────────────────────────────────────── */
.section-title {
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    margin-bottom: var(--sp-6);
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--border-strong), transparent);
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--game-card-min), 1fr));
    gap: var(--sp-6);
}

/* ── Game Page Layout ────────────────────────────────────── */
.game-frame-container {
    position: relative;
    background: #000;
    border-radius: var(--r-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.game-iframe {
    width: 100%;
    height: 72vh;
    min-height: 480px;
    max-height: 900px;
    border: none;
    display: block;
}

/* ── Fullscreen button ───────────────────────────────────── */
.btn-fullscreen {
    position: absolute;
    top: var(--sp-3);
    right: var(--sp-3);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--r-md);
    color: #fff;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--t-base), background var(--t-base), border-color var(--t-base);
    z-index: 10;
}

.game-frame-container:hover .btn-fullscreen,
.btn-fullscreen:focus-visible {
    opacity: 1;
}

.btn-fullscreen:hover {
    background: rgba(0, 0, 0, 0.80);
    border-color: rgba(255, 255, 255, 0.35);
}

/* ── Game breadcrumb ─────────────────────────────────────── */
.game-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    font-size: var(--fs-sm);
    color: var(--text-muted);
    margin-bottom: var(--sp-3);
}

.game-breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--t-base);
}

.game-breadcrumb a:hover { color: var(--neon-cyan); }

/* ── Game title bar ──────────────────────────────────────── */
.game-title-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--sp-4);
    margin-bottom: var(--sp-4);
}

.game-title-bar h1 {
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    margin: 0;
    line-height: 1.2;
}

.game-meta-pills {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--sp-2);
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-1);
    padding: var(--sp-1) var(--sp-3);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-full);
    font-size: var(--fs-xs);
    color: var(--text-secondary);
    white-space: nowrap;
}

.meta-pill a {
    color: var(--neon-cyan);
    text-decoration: none;
}

.meta-pill--highlight {
    background: rgba(14, 165, 233, 0.12);
    border-color: rgba(14, 165, 233, 0.4);
    color: var(--neon-cyan);
}

/* ── Action bar (below iframe) ───────────────────────────── */
.game-action-bar {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding-block: var(--sp-3);
    flex-wrap: wrap;
}

/* ── Below-game grid ─────────────────────────────────────── */
.game-below-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-6);
    padding-block: var(--sp-6);
}

.below-panel-title {
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    margin: 0 0 var(--sp-4) 0;
    padding-bottom: var(--sp-3);
    border-bottom: 1px solid var(--border);
}

@media (max-width: 768px) {
    .game-below-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Achievements modal ──────────────────────────────────── */
/* .modal-backdrop base + .hidden rule live in components.css */

.modal-box {
    width: 100%;
    max-width: 480px;
    max-height: 80vh;
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modal-in 0.18s ease;
}

@keyframes modal-in {
    from { opacity: 0; transform: scale(0.95) translateY(8px); }
    to   { opacity: 1; transform: scale(1)    translateY(0); }
}

.modal-box-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-5) var(--sp-6);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.modal-box-header h2 {
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    margin: 0;
}

.modal-close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--fs-sm);
    line-height: 1;
    transition: background var(--t-base), border-color var(--t-base), color var(--t-base);
}

.modal-close-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
    color: var(--text-primary);
}

.modal-box-body {
    padding: var(--sp-5) var(--sp-6);
    overflow-y: auto;
    flex: 1;
}

/* ── Auth Pages ──────────────────────────────────────────── */
.auth-page {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-block: var(--sp-12);
}

.auth-card {
    width: 100%;
    max-width: 440px;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--sp-8);
}

.auth-title {
    font-size: var(--fs-2xl);
    margin-bottom: var(--sp-2);
}

.auth-subtitle {
    color: var(--text-muted);
    font-size: var(--fs-sm);
    margin: 0;
}

.auth-alt {
    text-align: center;
    margin-top: var(--sp-6);
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

/* ── Profile Layout ──────────────────────────────────────── */
.profile-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--sp-8);
    align-items: start;
}

@media (max-width: 800px) {
    .profile-layout {
        grid-template-columns: 1fr;
    }
}

/* ── Leaderboard Layout ──────────────────────────────────── */
.leaderboard-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--sp-8);
    align-items: start;
}

@media (max-width: 768px) {
    .leaderboard-layout {
        grid-template-columns: 1fr;
    }
}

/* ── Extra-small screens (phones ≤ 480px) ─────────────────── */
@media (max-width: 480px) {
    :root {
        --game-card-min: 150px; /* allows 2 columns on 360px phones */
    }

    .hero {
        padding-block: var(--sp-10) var(--sp-8);
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .game-below-grid {
        gap: var(--sp-4);
    }
}

/* ── Admin table scroll on mobile ────────────────────────── */
@media (max-width: 768px) {
    .admin-table-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* ── Home stats row (leaderboard + achievements above games) */
.home-stats-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-6);
    margin-bottom: var(--sp-8);
    align-items: start;
}

@media (max-width: 640px) {
    .home-stats-row {
        grid-template-columns: 1fr;
    }
}