/* Layout and page structure */
.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.page-content {
    flex: 1;
    padding: 1.5rem 0 3rem;
}
.section {
    padding: 2rem 0;
}
.hero-panel {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2rem;
    align-items: center;
    padding: 3rem 0;
}
@media (max-width: 900px) {
    .hero-panel {
        grid-template-columns: 1fr;
        padding: 2rem 0;
    }
}
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}
@media (max-width: 900px) {
    .cards-grid {
        grid-template-columns: 1fr;
    }
}
.card,
.feature-card {
    padding: 1.75rem;
    border-radius: 18px;
    background: #ffffff;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}
.hero-card {
    position: relative;
    padding: 2rem;
    border-radius: 24px;
    background: linear-gradient(135deg, #5b8def 0%, #4c6edb 100%);
    color: #ffffff;
    overflow: hidden;
}
.hero-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(255,255,255,0.24), transparent 40%);
}
.hero-card > * {
    position: relative;
}
.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    border-radius: 12px;
    background: rgba(76, 109, 219, 0.15);
    color: #3757b8;
    font-size: 1.1rem;
}
.section-title {
    margin: 0 0 0.75rem;
    font-size: clamp(1.4rem, 2vw, 2.25rem);
    line-height: 1.1;
}
.section-text {
    margin: 0;
    color: #4b5563;
    max-width: 56rem;
}