.rules-body {
    padding: clamp(1rem, 3vw, 2.5rem);
}

.rules-shell {
    width: min(1080px, 100%);
    margin: 0 auto;
    padding: clamp(1.25rem, 4vw, 2.5rem);
    background: linear-gradient(145deg, rgba(14, 15, 28, 0.94), rgba(8, 11, 24, 0.9));
    border: 1px solid var(--border);
    border-radius: 28px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.48), inset 0 0 1px rgba(255, 255, 255, 0.08);
    position: relative;
    overflow: hidden;
}

.rules-shell::before {
    content: '';
    position: absolute;
    inset: -20% 40% 55% -10%;
    background: radial-gradient(circle, rgba(140, 246, 255, 0.15), transparent 68%);
    filter: blur(18px);
    pointer-events: none;
}

.rules-nav,
.rules-hero,
.rules-section,
.rules-footer {
    position: relative;
    z-index: 1;
}

.rules-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: clamp(2.5rem, 7vw, 5.5rem);
}

.rules-nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-wordmark,
.rules-back-link,
.rules-link,
.inline-rules-link,
.game-rules-link {
    color: var(--text);
    text-decoration: none;
}

.brand-wordmark {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #f5fbff;
}

.brand-wordmark:first-letter {
    color: var(--accent);
}

.rules-back-link,
.rules-link {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 700;
    transition: color 0.2s ease, transform 0.2s ease;
}

.rules-back-link:hover,
.rules-link:hover,
.inline-rules-link:hover,
.game-rules-link:hover {
    color: #fff;
}

.language-switch {
    display: inline-flex;
    gap: 0.15rem;
    padding: 0.2rem;
    border: 1px solid rgba(140, 246, 255, 0.16);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
}

.language-button {
    border: 0;
    border-radius: 999px;
    padding: 0.35rem 0.65rem;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.06em;
}

.language-button.is-active {
    color: #05060c;
    background: linear-gradient(135deg, #7ef3ff, #7d7dff);
    box-shadow: 0 4px 14px rgba(126, 243, 255, 0.2);
}

.rules-hero {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
    padding: 0 clamp(0.25rem, 2vw, 1.25rem) clamp(2.5rem, 6vw, 4.75rem);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.rules-hero h1 {
    margin: 0.45rem 0 0.85rem;
    font-size: clamp(2.5rem, 7vw, 5.2rem);
    line-height: 0.98;
}

.rules-hero h1::first-letter {
    color: var(--accent);
}

.rules-lead {
    max-width: 570px;
    margin: 0;
    color: var(--muted);
    font-size: clamp(1rem, 2vw, 1.2rem);
}

.rules-hero-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 0 0 auto;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 125, 255, 0.28);
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(255, 125, 255, 0.12), rgba(140, 246, 255, 0.08));
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    line-height: 1.25;
    text-transform: uppercase;
}

.rules-hero-badge span {
    color: #05060c;
    background: linear-gradient(135deg, #7ef3ff, #ff7dff);
    border-radius: 12px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    line-height: 1;
    padding: 0.65rem;
}

.rules-section {
    padding: clamp(2.5rem, 6vw, 4.5rem) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.rules-final-section {
    border-bottom: 0;
    padding-bottom: 1.5rem;
}

.section-heading {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    margin-bottom: 1.75rem;
}

.section-heading h2 {
    margin: 0.15rem 0 0;
    color: #f5fbff;
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.65rem, 4vw, 2.35rem);
}

.section-index {
    color: var(--accent);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding-top: 0.35rem;
}

.rules-steps,
.rules-columns,
.card-rules-grid {
    display: grid;
    gap: 1rem;
}

.rules-steps {
    grid-template-columns: repeat(3, 1fr);
}

.rules-steps article,
.rules-card,
.rules-columns > div,
.card-rule {
    border: 1px solid rgba(140, 246, 255, 0.12);
    border-radius: 18px;
    background: linear-gradient(145deg, rgba(17, 19, 36, 0.84), rgba(11, 13, 26, 0.78));
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.rules-steps article {
    min-height: 170px;
    padding: 1.2rem;
}

.rules-steps article > span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    margin-bottom: 1rem;
    border-radius: 10px;
    background: rgba(140, 246, 255, 0.1);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 800;
}

.rules-section h3,
.rules-section p {
    margin: 0;
}

.rules-section h3 {
    margin-bottom: 0.45rem;
    color: #eef4ff;
    font-size: 1rem;
}

.rules-section p {
    color: var(--muted);
    font-size: 0.92rem;
}

.rules-card-highlight {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1.25rem;
    border-color: rgba(140, 246, 255, 0.24);
    background: linear-gradient(120deg, rgba(140, 246, 255, 0.12), rgba(125, 125, 255, 0.1), rgba(255, 125, 255, 0.1));
}

.rules-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.3rem;
    height: 2.3rem;
    flex: 0 0 auto;
    border-radius: 12px;
    background: linear-gradient(135deg, #7ef3ff, #7d7dff);
    color: #05060c;
    font-size: 1.25rem;
    font-weight: 800;
}

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

.rules-columns > div {
    padding: 1.2rem;
}

.rules-columns strong,
.card-rule strong,
.win-callout strong {
    color: #e9fbff;
}

.card-rules-grid {
    grid-template-columns: repeat(4, 1fr);
}

.card-rule {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    min-height: 135px;
    padding: 1rem;
}

.card-symbol {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.45rem;
    height: 2.45rem;
    padding: 0 0.35rem;
    border-radius: 10px;
    background: rgba(140, 246, 255, 0.12);
    color: var(--accent);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.84rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.card-rule-joker {
    border-color: rgba(255, 125, 255, 0.28);
}

.card-rule-joker .card-symbol {
    background: rgba(255, 125, 255, 0.15);
    color: #ffb8ff;
}

.win-callout {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    padding: 1rem 1.2rem;
    border: 1px solid rgba(111, 255, 176, 0.28);
    border-radius: 16px;
    background: rgba(111, 255, 176, 0.08);
}

.win-callout > span {
    color: var(--success);
    font-size: 1.4rem;
}

.rules-footer {
    padding-top: 1rem;
    color: var(--muted);
    font-size: 0.85rem;
    text-align: center;
}

.rules-footer span {
    color: var(--accent);
}

.is-hidden {
    display: none;
}

@media (max-width: 820px) {
    .card-rules-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 620px) {
    .rules-nav,
    .rules-hero {
        align-items: flex-start;
        flex-direction: column;
    }

    .rules-nav-actions {
        width: 100%;
        justify-content: space-between;
    }

    .rules-steps,
    .rules-columns,
    .card-rules-grid {
        grid-template-columns: 1fr;
    }

    .rules-steps article {
        min-height: auto;
    }
}