.hero-kelvin {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    overflow: hidden;
}

.hero-kelvin::before {
    content: "";
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(239, 68, 68, 0.15) 0%, transparent 70%);
    top: -150px;
    right: -100px;
}

.hero-kelvin::after {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
}

.hero-kelvin h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    position: relative;
    z-index: 1;
}

.hero-kelvin p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

.intro-analysis {
    background: linear-gradient(180deg, rgba(255,255,255,0.01) 0%, transparent 100%);
    border-bottom: 1px solid var(--border);
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(59, 130, 246, 0.08));
    padding: 2rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    border-left: 4px solid var(--success);
    transition: all 0.3s ease;
}

.advantage:hover {
    transform: translateY(-8px);
    border-left-color: var(--accent-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 15px 40px rgba(16, 185, 129, 0.2);
}

.adv-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--success), #34d399);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin-bottom: 1rem;
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

.advantage h3 {
    margin-top: 0;
    color: var(--text-primary);
}

.advantage p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.advantage ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.advantage li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.9rem;
}

.advantage li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

.challenge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.challenge {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(249, 115, 22, 0.08));
    padding: 2rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    border-left: 4px solid var(--danger);
    transition: all 0.3s ease;
}

.challenge:hover {
    transform: translateY(-8px);
    border-left-color: var(--accent-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 15px 40px rgba(239, 68, 68, 0.15);
}

.ch-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--danger), #f87171);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin-bottom: 1rem;
    box-shadow: 0 8px 20px rgba(239, 68, 68, 0.3);
}

.challenge h3 {
    margin-top: 0;
    color: var(--text-primary);
}

.challenge p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.challenge ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.challenge li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.9rem;
}

.challenge li::before {
    content: "!";
    position: absolute;
    left: 0;
    color: var(--danger);
    font-weight: bold;
}

.future-box {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(16, 185, 129, 0.1));
    padding: 2.5rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent-primary);
}

.future-box h3 {
    margin-top: 0;
    color: var(--accent-secondary);
}

.future-box p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.future-points {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

.future-point {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.future-point i {
    color: var(--success);
    font-size: 1.5rem;
    margin-top: 0.3rem;
    flex-shrink: 0;
}

.future-point strong {
    color: var(--text-primary);
    font-size: 1rem;
    display: block;
    margin-bottom: 0.3rem;
}

.future-point p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .advantage-grid,
    .challenge-grid {
        grid-template-columns: 1fr;
    }

    .future-points {
        grid-template-columns: 1fr;
    }
}