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

body {
    font-family: "Inter", Arial, sans-serif;
    background: #f5f7fa;
    color: #1a1a1a;
    line-height: 1.6;
}

/* COLOR PALETTE */
:root {
    --primary: #0057d9;
    --primary-dark: #003f9e;
    --text-dark: #1a1a1a;
    --text-light: #555;
    --bg-light: #ffffff;
    --bg-alt: #eef2f7;
}

/* HEADER */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    background: var(--bg-light);
    border-bottom: 1px solid #ddd;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
}

.menu-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 1.8rem;
}

.nav {
    display: none;
    flex-direction: column;
    gap: 12px;
    margin-top: 15px;
}

.nav a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
}

.nav a:hover {
    color: var(--primary);
}

/* DESKTOP NAV */
@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }

    .nav {
        display: flex;
        flex-direction: row;
        gap: 25px;
        margin: 0;
    }
}

/* HERO */
.hero {
    padding: 80px 25px;
    text-align: center;
    background: linear-gradient(135deg, #003f9e, #0057d9);
    color: white;
}

.hero h1 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.hero p {
    max-width: 600px;
    margin: auto;
    font-size: 1.1rem;
}

.hero-buttons {
    margin-top: 25px;
}

.btn-primary,
.btn-secondary {
    padding: 12px 22px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    margin: 0 8px;
    display: inline-block;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-primary:hover,
.btn-secondary:hover {
    opacity: 0.9;
}

/* SECTIONS */
.section {
    padding: 60px 25px;
    max-width: 1100px;
    margin: auto;
}

.section h2 {
    text-align: center;
    margin-bottom: 35px;
    font-size: 1.8rem;
}

.section.alt {
    background: var(--bg-alt);
}

/* GRID */
.grid {
    display: grid;
    gap: 20px;
}

@media (min-width: 768px) {
    .grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.card {
    background: var(--bg-light);
    padding: 22px;
    border-radius: 8px;
    border: 1px solid #ddd;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.card h3 {
    margin-bottom: 12px;
    font-size: 1.2rem;
}

/* USE CASES */
.usecases {
    list-style: none;
    max-width: 600px;
    margin: auto;
    font-size: 1.1rem;
}

.usecases li {
    padding: 10px 0;
    border-bottom: 1px solid #ccc;
}

/* CONTACT FORM */
.contact-form {
    max-width: 600px;
    margin: 35px auto 0;
    display: grid;
    gap: 20px;
}

.contact-form label {
    font-weight: 600;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    margin-top: 6px;
    border: 1px solid #bbb;
    border-radius: 6px;
    font-size: 1rem;
}

/* FOOTER */
.footer {
    text-align: center;
    padding: 25px;
    background: var(--primary-dark);
    color: white;
    margin-top: 40px;
}