* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Inter", Arial, sans-serif;
    color: #1f2933;
    line-height: 1.6;
    background: #ffffff;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

.container.narrow {
    max-width: 800px;
}

/* Header */
.header {
    border-bottom: 1px solid #e5e7eb;
    background: #ffffff;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    font-size: 20px;
    font-weight: 700;
}

.logo span {
    color: #2563eb;
}

nav a {
    margin-left: 24px;
    font-size: 14px;
}

.btn-nav {
    padding: 8px 14px;
    border: 1px solid #2563eb;
    border-radius: 6px;
    color: #2563eb;
}

/* Hero */
.hero {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #ffffff;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    max-width: 700px;
    margin-bottom: 30px;
}

.btn-primary {
    display: inline-block;
    background: #2563eb;
    color: #ffffff;
    padding: 14px 26px;
    border-radius: 6px;
    font-weight: 500;
}

/* Sections */
.section {
    padding: 80px 0;
}

.section.light {
    background: #f8fafc;
}

.section.dark {
    background: #0f172a;
    color: #ffffff;
    text-align: center;
}

.section h2 {
    font-size: 30px;
    margin-bottom: 30px;
}

/* Grid */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.card {
    background: #ffffff;
    padding: 28px;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
}

.section:not(.light) .card {
    background: #ffffff;
}

.card h3 {
    margin-bottom: 12px;
    font-size: 18px;
}

/* Points */
.points {
    list-style: none;
}

.points li {
    padding-left: 22px;
    margin-bottom: 12px;
    position: relative;
}

.points li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #2563eb;
    font-size: 20px;
}

/* Footer */
.footer {
    padding: 30px 0;
    border-top: 1px solid #e5e7eb;
    font-size: 14px;
    text-align: center;
}
/* -----------------------------
   Mobile Responsive Styles
------------------------------ */
@media (max-width: 768px) {

    .header .container {
        flex-direction: column;
        align-items: flex-start;
    }

    nav {
        margin-top: 10px;
    }

    nav a {
        margin: 8px 0;
        display: inline-block;
    }

    .hero {
        padding: 60px 0;
        text-align: left;
    }

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

    .hero p {
        font-size: 16px;
    }

    .section {
        padding: 50px 0;
    }

    .section h2 {
        font-size: 24px;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .card {
        padding: 22px;
    }

}
.stack {
    display: grid;
    gap: 20px;
}

.stack-layer {
    padding: 28px;
    border-radius: 14px;
    color: #ffffff;
}

.stack-layer.data { background: #2563eb; }
.stack-layer.decision { background: #1e40af; }
.stack-layer.hardware { background: #0f172a; }
.compare {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.compare-box {
    padding: 26px;
    border-radius: 12px;
}

.compare-box.before {
    background: #fef2f2;
    border-left: 6px solid #dc2626;
}

.compare-box.after {
    background: #ecfeff;
    border-left: 6px solid #2563eb;
}
.flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    justify-content: center;
}

.flow-box {
    padding: 14px 20px;
    border-radius: 8px;
    background: #f1f5f9;
    font-weight: 500;
}

.flow-box.highlight {
    background: #2563eb;
    color: #ffffff;
}

.flow-arrow {
    font-size: 22px;
    font-weight: bold;
}
.fullwidth {
    width: 100%;
    margin: 0;
}

.fullwidth svg {
    display: block;
    width: 100%;
    height: auto;
}