/* Slim graphite theme shared by the public app, marketing site, and admin panel. */

:root {
    --sleek-bg: var(--bg, #f6f1e7);
    --sleek-bg-soft: var(--bg-soft, #efe7d6);
    --sleek-surface: var(--card, #fffdf8);
    --sleek-surface-strong: var(--card-hover, #fff8ec);
    --sleek-panel: var(--card, #fffdf8);
    --sleek-panel-hover: var(--card-hover, #fff8ec);
    --sleek-border: var(--border, #e2d6c0);
    --sleek-border-strong: var(--border-strong, #cfc0a4);
    --sleek-text: var(--fg, #2c2416);
    --sleek-muted: var(--muted, #6b6256);
    --sleek-subtle: var(--subtle, #8a8072);
    --sleek-accent: var(--sage, #5c6b45);
    --sleek-accent-strong: var(--sage-strong, #4a5736);
    --sleek-accent-soft: var(--sage-soft, rgba(92, 107, 69, 0.12));
    --sleek-shadow: var(--shadow, 0 12px 32px rgba(44, 36, 22, 0.08));
}

body,
body.sleek-shell,
body.admin-sleek {
    color: var(--sleek-text);
    background:
        linear-gradient(180deg, rgba(19, 25, 35, 0.9), var(--sleek-bg) 22rem),
        var(--sleek-bg);
}

.sleek-shell::before,
.admin-sleek::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        linear-gradient(90deg, transparent, rgba(214, 168, 79, 0.035), transparent),
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 11rem);
}

.sleek-content-shell,
.sleek-section,
.sleek-marketing-section,
.sleek-marketing-section-alt,
.admin-main-sleek {
    position: relative;
    z-index: 1;
}

.sleek-section,
.sleek-marketing-section {
    background: transparent;
}

.sleek-marketing-section-alt {
    background: rgba(255, 255, 255, 0.015);
    border-top: 1px solid rgba(148, 163, 184, 0.08);
    border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.sleek-hero-section {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(15, 20, 28, 0.5), rgba(8, 11, 16, 0.92));
}

.sleek-nav {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(9, 12, 18, 0.92);
    border-bottom: 1px solid var(--sleek-border);
    backdrop-filter: blur(16px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
}

.sleek-brand-mark {
    width: 2.25rem;
    height: 2.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
    color: #0a0d12;
    background: linear-gradient(135deg, var(--sleek-accent-strong), var(--sleek-accent));
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.28);
}

.sleek-brand-text {
    color: #f8fafc;
}

.sleek-brand-text strong,
.gradient-text,
.gradient-text-animated,
.text-accent {
    color: var(--sleek-accent-strong);
    -webkit-text-fill-color: currentColor;
    background: none;
    text-shadow: none;
}

.sleek-nav-link {
    color: rgba(226, 232, 240, 0.78);
    border: 1px solid transparent;
    transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
}

.sleek-nav-link:hover {
    color: #fff;
    background: rgba(148, 163, 184, 0.08);
    border-color: rgba(148, 163, 184, 0.12);
}

.sleek-nav-link-active {
    color: #fff;
    background: rgba(214, 168, 79, 0.13);
    border-color: rgba(214, 168, 79, 0.24);
}

.sleek-cta-link,
.admin-quick-button {
    color: #0b0f16;
    background: var(--sleek-accent);
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: none;
}

.sleek-cta-link:hover,
.admin-quick-button:hover {
    color: #05070a;
    background: var(--sleek-accent-strong);
}

.sleek-ribbon {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.55rem 0.85rem;
    border-radius: 0.5rem;
    color: #f8fafc;
    background: rgba(15, 20, 28, 0.82);
    border: 1px solid var(--sleek-border);
    box-shadow: none;
    backdrop-filter: blur(10px);
}

.sleek-ribbon .icon-wrap {
    width: 1.75rem;
    height: 1.75rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.45rem;
    color: var(--sleek-accent-strong);
    background: var(--sleek-accent-soft);
}

.sleek-panel,
.glass-card,
.glass-card-subtle,
.feature-card-3d,
.profile-header,
.profile-section,
.profile-stat-card,
.achievement-card,
.game-session-card,
.stat-card {
    background: var(--sleek-panel);
    border: 1px solid var(--sleek-border);
    border-radius: 0.5rem;
    box-shadow: none;
    backdrop-filter: blur(12px);
}

.glass-card:hover,
.glass-card-subtle:hover,
.feature-card-3d:hover,
.profile-stat-card:hover,
.achievement-card.unlocked:hover,
.game-session-card:hover,
.stat-card:hover {
    background: var(--sleek-panel-hover);
    border-color: var(--sleek-border-strong);
    box-shadow: none;
    transform: none;
}

.sleek-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.9rem;
    color: var(--sleek-muted);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.sleek-divider::before,
.sleek-divider::after {
    content: "";
    width: 88px;
    max-width: 18vw;
    height: 1px;
    background: var(--sleek-border-strong);
}

.sleek-admin-banner,
.sleek-page-banner {
    position: relative;
    overflow: hidden;
    border-radius: 0.5rem;
    border: 1px solid var(--sleek-border);
    background: var(--sleek-surface);
    box-shadow: none;
}

.sleek-page-banner-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.9rem 1rem;
}

.sleek-page-banner-title {
    color: var(--sleek-text);
    font-weight: 800;
}

.sleek-page-banner-copy,
.sleek-footer-note,
.admin-side-note {
    color: var(--sleek-muted);
}

.sleek-inline-meta {
    color: var(--sleek-accent-strong);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.sleek-footer {
    position: relative;
    z-index: 1;
    background: rgba(6, 8, 12, 0.94);
    border-top: 1px solid var(--sleek-border);
}

.btn-premium {
    border-radius: 0.5rem;
    padding: 0.85rem 1.2rem;
    letter-spacing: 0;
    box-shadow: none;
}

.btn-premium::before {
    display: none;
}

.btn-primary-premium,
.btn-gold-premium {
    color: #0b0f16;
    background: var(--sleek-accent);
    box-shadow: none;
}

.btn-primary-premium:hover,
.btn-gold-premium:hover {
    color: #05070a;
    background: var(--sleek-accent-strong);
    transform: none;
    box-shadow: none;
}

.btn-glass {
    color: #f8fafc;
    background: rgba(148, 163, 184, 0.08);
    border-color: var(--sleek-border);
}

.btn-glass:hover {
    background: rgba(148, 163, 184, 0.13);
    border-color: var(--sleek-border-strong);
    transform: none;
}

.feature-card-3d,
.stat-card {
    padding: 1.25rem;
}

.icon-container {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.5rem;
}

.quote-section {
    background: rgba(255, 255, 255, 0.015);
    border-color: rgba(148, 163, 184, 0.1);
}

.quote-marks {
    color: var(--sleek-accent);
}

.admin-sidebar-sleek {
    background: rgba(8, 11, 16, 0.98);
    border-right: 1px solid var(--sleek-border);
    box-shadow: none;
}

.admin-sidebar-header-sleek,
.admin-header-sleek {
    background: rgba(11, 15, 22, 0.96);
    border-bottom: 1px solid var(--sleek-border);
    backdrop-filter: blur(14px);
}

.admin-main-sleek {
    background:
        linear-gradient(180deg, rgba(148, 163, 184, 0.025), transparent 12rem),
        var(--sleek-bg);
}

@media (max-width: 768px) {
    .sleek-brand-mark {
        width: 2rem;
        height: 2rem;
    }

    .sleek-ribbon {
        padding: 0.5rem 0.7rem;
    }

    .feature-card-3d,
    .stat-card {
        padding: 1rem;
    }
}