/* HERO */
.ai-hero {
    padding: 180px 5% 120px;
    text-align: center;
}

.ai-label {
    font-size: 0.85rem;
    letter-spacing: 3px;
    opacity: 0.6;
}

.ai-hero h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    line-height: 1.05;
    letter-spacing: -2px;
    margin: 30px 0;
}

.ai-hero p {
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.7;
    font-size: 1.2rem;
}

/* STATS */
.ai-stats {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    text-align: center;
    padding: 60px 5%;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

/* SERVICES */
.ai-services {
    padding: 120px 5%;
}

.ai-services h2 {
    font-size: 3rem;
    margin-bottom: 60px;
}

.ai-grid {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 40px;
}

.ai-card {
    background: var(--surface);
    padding: 50px;
    border-radius: 25px;
    border: 1px solid var(--border);
}

/* MODELS */
.ai-models {
    background: #fff;
    color: #000;
    padding: 120px 5%;
    text-align: center;
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 30px;
    margin-top: 60px;
}

.model-grid div {
    padding: 30px;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 15px;
}

/* USE CASES */
.ai-usecases {
    padding: 120px 5%;
}

.usecase-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 30px;
    margin-top: 60px;
}

/* ARCHITECTURE */
.ai-architecture {
    background: #0a0a0a;
    padding: 120px 5%;
    text-align: center;
}

.ai-architecture p {
    max-width: 800px;
    margin: 20px auto 0;
    opacity: 0.7;
}

/* STACK */
.ai-stack {
    padding: 120px 5%;
    text-align: center;
}

.stack-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 30px;
    margin-top: 60px;
}

/* CTA */
.ai-cta {
    padding: 140px 5%;
    text-align: center;
}

.ai-cta h2 {
    font-size: 3rem;
    margin-bottom: 40px;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
    .ai-grid,
    .model-grid,
    .usecase-grid,
    .stack-grid,
    .ai-stats {
        grid-template-columns: 1fr;
    }
}