* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
    background: #0f172a;
    color: #e2e8f0;
    line-height: 1.6;
}

/* HERO */
.hero {
    min-height: 90vh;
    background: linear-gradient(135deg, #0ea5e9, #1e3a8a);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 20px;
}

.hero-content {
    max-width: 700px;
}

.hero-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    color: #ffffff;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 35px;
    opacity: 0.9;
}

/* BUTTONS */
.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 13px 26px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s ease;
}

.btn.primary {
    background: #38bdf8;
    color: #0f172a;
}

.btn.primary:hover {
    background: #dbeafe;
}

.btn.secondary {
    border: 2px solid #ffffff;
    color: #ffffff;
}

.btn.secondary:hover {
    background: rgba(255,255,255,0.15);
}

/* SECTIONS */
.section {
    padding: 80px 20px;
    text-align: center;
}

.section h2 {
    font-size: 2rem;
    margin-bottom: 50px;
}

/* CARDS */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.card {
    background: #1e293b;
    border-radius: 16px;
    padding: 40px 25px;
    transition: transform 0.25s ease;
}

.card:hover {
    transform: translateY(-6px);
}

.card i {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #38bdf8;
}

.card h3 {
    margin-bottom: 12px;
}

/* DARK SECTION */
.dark {
    background: #0f172a;
}

/* FOOTER */
footer {
    padding: 35px 20px;
    text-align: center;
    font-size: 0.9rem;
    color: #94a3b8;
}