* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: #f9fafb;
    color: #111827;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 60px;
    background: white;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #2563EB;
}

nav a {
    margin-left: 20px;
    text-decoration: none;
    color: #111827;
}

.btn {
    padding: 8px 14px;
    background: #2563EB;
    color: white;
    border-radius: 6px;
}

/* Hero */
.hero {
    text-align: center;
    padding: 100px 20px;
    background: linear-gradient(to right, #2563EB, #16A34A);
    color: white;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
}

.primary-btn {
    margin-top: 20px;
    padding: 14px 28px;
    border: none;
    background: #FACC15;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
}

/* Problems */
.problems {
    padding: 60px;
    text-align: center;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.card {
    padding: 30px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

/* Features */
.features {
    padding: 60px;
    background: #eef2ff;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
}

/* CTA */
.cta {
    padding: 80px;
    text-align: center;
    background: #16A34A;
    color: white;
}

.secondary-btn {
    margin-top: 20px;
    padding: 14px 30px;
    background: white;
    color: #16A34A;
    border: none;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
}
/* =========================
   📱 MOBILE RESPONSIVE FIX
   ========================= */

@media (max-width: 768px) {

    header {
        padding: 16px 20px;
        flex-direction: column;
        gap: 10px;
    }

    nav a {
        margin-left: 12px;
        font-size: 14px;
    }

    /* HERO */
    .hero {
        padding: 60px 16px;
    }

    .hero h1 {
        font-size: 28px;
        line-height: 1.3;
    }

    .hero p {
        font-size: 15px;
    }

    /* SECTIONS */
    .problems,
    .features,
    .cta {
        padding: 40px 16px;
    }

    /* GRIDS STACK */
    .problem-grid,
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .primary-btn,
    .secondary-btn {
        font-size: 16px;
        padding: 12px 22px;
    }
}