:root {
    --cst-primary: #0b2545;
    --cst-accent: #1768ac;
    --cst-light: #f0f4f8;
    --cst-muted: #6c757d;
    --cst-gradient: linear-gradient(135deg, #0b2545 0%, #1768ac 100%);
}

/* ── Hero ─────────────────────────────────────────────────── */
.cst-hero {
    background: var(--cst-gradient);
    color: #fff;
    padding: 4.5rem 1rem 3.5rem;
    text-align: center;
}
.cst-hero h1 { font-size: 2.5rem; font-weight: 700; letter-spacing: -0.5px; }
.cst-hero p.lead { max-width: 700px; margin: 1rem auto 0; opacity: 0.9; font-size: 1.15rem; }

/* ── Section headers ──────────────────────────────────────── */
.cst-section-title { font-size: 1.85rem; font-weight: 700; color: var(--cst-primary); margin-bottom: 0.35rem; }
.cst-section-subtitle { color: var(--cst-muted); font-size: 1.05rem; margin-bottom: 2.25rem; }
.cst-divider { width: 60px; height: 3px; background: var(--cst-accent); border: none; margin: 0 auto 2.5rem; opacity: 1; }

/* ── Product cards ────────────────────────────────────────── */
.cst-card {
    border: none; border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    height: 100%;
}
.cst-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.1); }
.cst-card .card-body { padding: 1.75rem; }
.cst-card .cst-card-icon {
    width: 48px; height: 48px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.35rem; margin-bottom: 1rem; color: #fff;
    background: var(--cst-gradient);
}
.cst-card h5 { font-weight: 700; color: var(--cst-primary); font-size: 1.1rem; }
.cst-card p { color: #495057; font-size: 0.935rem; line-height: 1.6; }
.cst-badge {
    display: inline-block; background: #e8f0fe; color: var(--cst-accent);
    font-size: 0.78rem; font-weight: 600; padding: 0.25rem 0.65rem;
    border-radius: 20px; margin-right: 0.35rem; margin-bottom: 0.35rem;
}

/* ── V-Score highlight boxes ──────────────────────────────── */
.cst-vscore-highlight { background: var(--cst-light); border-radius: 14px; padding: 2.25rem; }
.cst-scale-bar {
    height: 14px; border-radius: 7px;
    background: linear-gradient(90deg, #dc3545 0%, #ffc107 35%, #28a745 70%, #0d6efd 100%);
    margin: 1rem 0 0.5rem;
}
.cst-scale-labels { display: flex; justify-content: space-between; font-size: 0.82rem; font-weight: 600; color: var(--cst-muted); }

/* ── Benefits list ────────────────────────────────────────── */
.cst-benefit-item { display: flex; align-items: flex-start; gap: 0.75rem; margin-bottom: 1rem; }
.cst-benefit-icon {
    flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
    background: #d4edda; color: #198754;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem; margin-top: 2px;
}
.cst-benefit-item p { margin: 0; font-size: 0.93rem; color: #495057; line-height: 1.55; }

/* ── Analytics items ──────────────────────────────────────── */
.cst-analytics-item {
    padding: 1.5rem; background: #fff; border-radius: 10px;
    border-left: 4px solid var(--cst-accent);
    box-shadow: 0 1px 6px rgba(0,0,0,0.05); height: 100%;
}
.cst-analytics-item h6 { font-weight: 700; color: var(--cst-primary); margin-bottom: 0.5rem; }
.cst-analytics-item p { font-size: 0.92rem; color: #495057; margin: 0; line-height: 1.55; }

/* ── Accordion overrides ──────────────────────────────────── */
.cst-tools-section .accordion-button:not(.collapsed) { background: var(--cst-light); color: var(--cst-primary); font-weight: 600; }
.cst-tools-section .accordion-button { font-weight: 600; color: var(--cst-primary); }

/* ── Spacing ──────────────────────────────────────────────── */
.cst-section { padding: 4rem 0; }
.cst-section-alt { background: var(--cst-light); padding: 4rem 0; }