.ri-shell {
    --ri-primary: #3f3854;
    --ri-ink: #272436;
    --ri-muted: #625f73;
    --ri-line: rgba(64, 57, 84, 0.14);
    --ri-soft: #efeaf4;
    --ri-mint: #efeaf4;
    --ri-coral: #d8cde5;
    --ri-teal: #3f3854;
    --ri-accent: #3f3854;
}

/* RI Hero Section */
.ri-hero-section {
    margin: 4rem 0 3rem;
}

.ri-hero-panel {
    background: #ddd3ef;
    border: 1px solid var(--ri-line);
    border-radius: 16px;
    box-shadow: 0 22px 60px rgba(39, 36, 54, 0.09);
    overflow: hidden;
    position: relative;
}

.ri-hero-panel::before {
    background: #4b445f;
    content: "";
    height: 100%;
    left: 0;
    position: absolute;
    top: 0;
    width: 8px;
}

.rtl-body .ri-hero-panel::before {
    left: auto;
    right: 0;
}

.ri-hero-body {
    padding: 3rem 3.25rem 3rem 3.75rem;
    position: relative;
    z-index: 1;
}

.rtl-body .ri-hero-body {
    padding: 3rem 3.75rem 3rem 3.25rem;
}

.ri-kicker {
    color: var(--ri-teal);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    margin-bottom: 0.9rem;
    text-transform: uppercase;
}

.ri-hero-title {
    color: var(--ri-ink);
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.12;
    margin-bottom: 1rem;
    max-width: 880px;
}

.ri-hero-lede {
    color: var(--ri-primary);
    font-size: 1.18rem;
    font-weight: 650;
    line-height: 1.65;
    margin-bottom: 1.4rem;
    max-width: 820px;
}

.ri-hero-copy {
    color: var(--ri-muted);
    font-size: 1rem;
    line-height: 1.78;
    margin-bottom: 1rem;
    max-width: 820px;
}

.ri-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-top: 1.75rem;
}

.ri-btn-primary,
.ri-btn-secondary {
    align-items: center;
    border-radius: 8px;
    display: inline-flex;
    font-weight: 700;
    justify-content: center;
    min-height: 46px;
    padding: 0.78rem 1.35rem;
    text-decoration: none;
    transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.ri-btn-primary {
    background: var(--ri-primary);
    border: 1px solid var(--ri-primary);
    color: #fff !important;
}

.ri-btn-primary:hover {
    background: #2f2943;
    border-color: #2f2943;
    color: #fff !important;
    transform: translateY(-1px);
}

.ri-btn-secondary {
    background: #fff;
    border: 1px solid rgba(63, 56, 84, 0.24);
    color: var(--ri-primary) !important;
}

.ri-btn-secondary:hover {
    background: var(--ri-soft);
    border-color: rgba(64, 57, 84, 0.34);
    color: var(--ri-primary) !important;
    transform: translateY(-1px);
}

.ri-hero-aside {
    background: #fff;
    border-left: 1px solid var(--ri-line);
    display: flex;
    flex-direction: column;
    height: 100%;
    justify-content: center;
    padding: 2.2rem;
}

.rtl-body .ri-hero-aside {
    border-left: 0;
    border-right: 1px solid var(--ri-line);
}

.ri-aside-label {
    color: var(--ri-teal);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.ri-focus-row {
    align-items: center;
    border-bottom: 1px solid rgba(63, 56, 84, 0.1);
    color: var(--ri-ink);
    display: flex;
    font-size: 1.05rem;
    font-weight: 750;
    gap: 0.75rem;
    padding: 0.9rem 0;
}

.ri-focus-dot {
    background: var(--ri-accent);
    border-radius: 50%;
    display: inline-flex;
    height: 11px;
    width: 11px;
}

.ri-hero-note {
    background: #ddd3ef;
    border-left: 4px solid var(--ri-teal);
    border-radius: 8px;
    color: var(--ri-muted);
    font-weight: 600;
    line-height: 1.6;
    margin-top: 1.5rem;
    padding: 1rem;
}

.rtl-body .ri-hero-note {
    border-left: 0;
    border-right: 4px solid var(--ri-teal);
}

/* RI Panel Layouts */
.ri-panel {
    background: #fff;
    border: 1px solid var(--ri-line);
    border-radius: 16px;
    box-shadow: 0 16px 40px rgba(39, 36, 54, 0.06);
    padding: 3rem;
}

.ri-section-title {
    color: var(--ri-primary);
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1.18;
    margin-bottom: 1rem;
}

.ri-section-copy {
    color: var(--ri-muted);
    font-size: 1.03rem;
    line-height: 1.82;
}

/* Importance Section (Why This Matters) */
.ri-importance-stage {
    background: linear-gradient(135deg, #ffffff 0%, #f8f4fb 100%);
    border: 1px solid rgba(64, 57, 84, 0.12);
    border-radius: 16px;
    box-shadow: 0 18px 46px rgba(39, 36, 54, 0.06);
    overflow: hidden;
}

.ri-importance-card {
    background: transparent;
    border-right: 1px solid rgba(64, 57, 84, 0.12);
    color: var(--ri-primary);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    height: 100%;
    justify-content: flex-start;
    padding: 2.5rem 2rem;
}

.rtl-body .ri-importance-card {
    border-right: 0;
    border-left: 1px solid rgba(64, 57, 84, 0.12);
}

.ri-importance-icon,
.ri-card-icon {
    align-items: center;
    background: var(--ri-primary);
    border-radius: 8px;
    color: #fff;
    display: inline-flex;
    font-size: 1.15rem;
    height: 46px;
    justify-content: center;
    width: 46px;
}

.ri-importance-title {
    color: var(--ri-primary);
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin: 0;
}

.ri-highlight {
    color: var(--ri-ink);
    font-size: 1.18rem;
    font-weight: 700;
    line-height: 1.62;
    margin: 0;
}

.ri-importance-panel {
    background: transparent;
    display: grid;
    gap: 0;
    height: 100%;
    padding: 1.5rem 2rem;
}

.ri-importance-item {
    background: transparent;
    border: 0;
    border-bottom: 1px solid rgba(64, 57, 84, 0.1);
    padding: 1.25rem 0.5rem;
}

.ri-importance-item:last-child {
    border-bottom: 0;
}

.ri-importance-copy {
    font-size: 1.04rem;
    line-height: 1.9;
    margin: 0;
    color: var(--ri-muted);
}

.ri-importance-copy-lead {
    color: var(--ri-ink);
    font-size: 1.1rem;
    font-weight: 600;
}

/* RI Card (How CTDC Helps) */
.ri-card {
    background: #fff;
    border: 1px solid var(--ri-line);
    border-radius: 12px;
    height: 100%;
    padding: 1.85rem;
    transition: box-shadow 0.22s ease, transform 0.22s ease;
}

.ri-card:hover {
    box-shadow: 0 16px 36px rgba(39, 36, 54, 0.08);
    transform: translateY(-4px);
}

.ri-card-title {
    color: var(--ri-primary);
    font-size: 1.22rem;
    font-weight: 800;
    line-height: 1.35;
    margin: 1.2rem 0 0.75rem;
}

.ri-card-copy {
    color: var(--ri-muted);
    font-size: 0.98rem;
    line-height: 1.78;
    margin: 0;
}

/* Offerings/Grid Items (This Can Include) */
.ri-grid-card {
    align-items: flex-start;
    background: var(--ri-soft);
    border: 1px solid rgba(63, 56, 84, 0.10);
    border-radius: 8px;
    display: flex;
    gap: 0.8rem;
    height: 100%;
    padding: 1rem;
    transition: background-color 0.2s ease;
}

.ri-grid-card:hover {
    background: #eae3f1;
}

.ri-grid-icon {
    align-items: center;
    background: #fff;
    border-radius: 50%;
    color: var(--ri-teal);
    display: inline-flex;
    flex-shrink: 0;
    font-size: 0.78rem;
    height: 28px;
    justify-content: center;
    width: 28px;
}

.ri-grid-text {
    color: var(--ri-ink);
    font-weight: 600;
    line-height: 1.58;
}

/* Practice Grid */
.ri-practice-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (max-width: 991.98px) {
    .ri-practice-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 575.98px) {
    .ri-practice-grid {
        grid-template-columns: 1fr;
    }
}

.ri-practice-card {
    background: #fff;
    border: 1px solid var(--ri-line);
    border-radius: 12px;
    padding: 2rem;
    transition: box-shadow 0.2s, transform 0.2s;
}

.ri-practice-card:hover {
    box-shadow: 0 12px 30px rgba(63, 56, 84, 0.08);
    transform: translateY(-2px);
}

.ri-practice-title {
    color: var(--ri-primary);
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 0.85rem;
}

.ri-practice-desc {
    color: var(--ri-muted);
    font-size: 0.98rem;
    line-height: 1.68;
    margin: 0;
}

/* Case Study Cards (Insight in Practice) */
.ri-case-card {
    background: #fff;
    border: 1px solid var(--ri-line);
    border-radius: 12px;
    box-shadow: 0 14px 34px rgba(39, 36, 54, 0.05);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.ri-case-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 40px rgba(39, 36, 54, 0.08);
}

.ri-case-head {
    align-items: start;
    background: var(--ri-soft);
    display: grid;
    gap: 0.85rem;
    grid-template-columns: 36px minmax(0, 1fr);
    padding: 1.5rem 1.25rem 1.25rem;
}

.rtl-body .ri-case-head {
    grid-template-columns: minmax(0, 1fr) 36px;
}

.ri-case-number {
    align-items: center;
    background: var(--ri-teal);
    border-radius: 50%;
    color: #fff;
    display: inline-flex;
    flex-shrink: 0;
    font-size: 0.92rem;
    font-weight: 800;
    height: 36px;
    justify-content: center;
    width: 36px;
}

.ri-case-title {
    color: var(--ri-primary);
    font-size: 1.05rem;
    font-weight: 800;
    line-height: 1.5;
    margin: 0;
}

.ri-case-body {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    gap: 1.2rem;
    padding: 1.25rem;
}

.ri-case-copy {
    font-size: 0.98rem;
    line-height: 1.72;
    margin: 0;
    color: var(--ri-muted);
}

.ri-case-areas {
    color: var(--ri-primary);
    border-top: 1px solid rgba(64, 57, 84, 0.12);
    font-size: 0.88rem;
    font-weight: 700;
    line-height: 1.7;
    margin: 0;
    padding-top: 0.95rem;
}

/* RI Flow Diagram (How This Connects) */
.ri-flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.7rem;
    margin-top: 1.8rem;
    justify-content: center;
}

.ri-flow-chip {
    align-items: center;
    background: var(--ri-soft);
    border: 1px solid var(--ri-line);
    border-radius: 8px;
    color: var(--ri-primary);
    display: inline-flex;
    font-weight: 750;
    padding: 0.72rem 1.1rem;
}

.ri-flow-arrow {
    color: var(--ri-accent);
    font-weight: 800;
    font-size: 1.1rem;
}

.rtl-body .ri-flow-arrow i {
    transform: rotate(180deg);
}

/* Responsiveness overrides */
@media (max-width: 991.98px) {
    .ri-hero-section {
        margin-top: 2.5rem;
    }

    .ri-hero-body,
    .ri-hero-aside,
    .ri-panel,
    .ri-importance-card {
        padding: 1.75rem;
    }

    .ri-hero-title {
        font-size: 2.15rem;
    }

    .ri-importance-title {
        font-size: 2rem;
    }

    .ri-importance-card {
        border-right: 0;
        border-bottom: 1px solid rgba(64, 57, 84, 0.12);
    }
    
    .rtl-body .ri-importance-card {
        border-left: 0;
        border-bottom: 1px solid rgba(64, 57, 84, 0.12);
    }

    .ri-importance-panel {
        padding: 1.25rem 0.5rem;
    }

    .ri-hero-aside {
        border-left: 0;
        border-top: 1px solid var(--ri-line);
    }
    
    .rtl-body .ri-hero-aside {
        border-right: 0;
        border-top: 1px solid var(--ri-line);
    }
}