:root {
    --primary: #1e3a8a;
    --accent: #0284c7;
    --dark: #1e293b;
    --light: #f8fafc;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: var(--dark);
    background-color: #ffffff;
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background: var(--primary);
    padding: 15px 0;
}
header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    color: #fff;
    font-size: 1.3rem;
    font-weight: bold;
}
nav a {
    color: #cbd5e1;
    text-decoration: none;
    margin-left: 20px;
    font-weight: 500;
}
nav a:hover, nav a.active {
    color: #fff;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1e3a8a 0%, #0369a1 100%);
    color: white;
    text-align: center;
    padding: 80px 20px;
}
.hero h1 { font-size: 2.5rem; margin: 0 0 15px; }
.hero p { font-size: 1.2rem; opacity: 0.9; margin-bottom: 30px; }

/* Buttons & Inputs */
.btn {
    background: var(--accent);
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    border: none;
    cursor: pointer;
    display: inline-block;
}
.btn:hover { background: #0369a1; }

/* Product/Feature Layouts */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    padding: 60px 20px;
}
.card {
    background: var(--light);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
}
.icon { font-size: 3rem; display: block; margin-bottom: 10px; }

.page-content { padding: 40px 20px; }
.subtitle { color: #64748b; font-size: 1.1rem; margin-bottom: 40px; }

.product-grid { display: flex; flex-direction: column; gap: 30px; }
.product-item {
    display: flex;
    background: var(--light);
    padding: 20px;
    border-radius: 8px;
    align-items: center;
    gap: 20px;
}
.prod-img { font-size: 3.5rem; background: #e2e8f0; padding: 15px; border-radius: 6px; }

/* Forms */
.contact-form { display: flex; flex-direction: column; gap: 10px; }
.contact-form input, .contact-form select, .contact-form textarea {
    padding: 10px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    font-size: 1rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 20px;
    background: var(--light);
    color: #64748b;
    border-top: 1px solid #e2e8f0;
    margin-top: 60px;
}