/* ---------- Home hero ---------- */

.hero {
    position: relative;
    overflow: hidden;
    text-align: center;
    color: #fff;
    padding: 110px 0 120px;
    background: linear-gradient(135deg, var(--primary-darker) 0%, var(--primary-dark) 40%, var(--primary) 75%, var(--accent) 130%);
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.hero::before {
    width: 480px;
    height: 480px;
    left: -160px;
    top: -160px;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.14), transparent 65%);
}

.hero::after {
    width: 560px;
    height: 560px;
    right: -200px;
    bottom: -260px;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.1), transparent 65%);
}

.hero-inner {
    position: relative;
    z-index: 1;
}

.hero-kicker {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2.4px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 999px;
    padding: 7px 18px;
    margin-bottom: 26px;
}

.hero h1 {
    font-size: clamp(3rem, 7vw, 4.6rem);
    font-weight: 800;
    letter-spacing: 1.5px;
}

.tagline {
    font-size: clamp(1.25rem, 2.6vw, 1.85rem);
    font-weight: 600;
    color: var(--primary-light);
    margin-top: 10px;
}

.hero-description {
    max-width: 660px;
    margin: 24px auto 0;
    font-size: 1.08rem;
    color: rgba(255, 255, 255, 0.88);
}

.hero-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 36px;
}

/* ---------- Home sections ---------- */

.pillars-grid,
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 26px;
}

.research .split-text h2 {
    font-size: clamp(1.7rem, 3vw, 2.2rem);
    color: var(--primary-dark);
    line-height: 1.25;
    margin-bottom: 16px;
}

.edu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 26px;
}

@media (max-width: 640px) {
    .hero {
        padding: 84px 0 90px;
    }
}