/* Base Styles */
:root {
    --primary-color: #d32f2f; /* Rustic Red [49] */
    --secondary-color: #212121; /* Classic Black [49] */
    --light-grey: #f4f4f4;
    --white: #ffffff;
    --accent-green: #25D366; /* WhatsApp Green */
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    color: #333;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--white);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

nav ul {
    list-style: none;
    display: flex;
    margin: 0;
}

nav ul li {
    margin-left: 20px;
}

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

.cta-nav {
    background: var(--primary-color);
    color: var(--white) !important;
    padding: 8px 15px;
    border-radius: 5px;
}

/* Hero */
.hero {
    background: linear-gradient(rgba(0,0,0,0.2), rgba(0,0,0,0.5)), url('hero-bg.png'); /* Suggesting a roof image  */
    background-size: cover;
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero-btns {
    margin-top: 30px;
}

.btn-primary, .btn-whatsapp {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    margin: 10px;
    font-weight: bold;
}

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

/* Benefits */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding-bottom: 50px;
}

.benefit-card {
    padding: 30px;
    background: var(--light-grey);
    border-radius: 10px;
}

/* Applications */
.bg-light { background: var(--light-grey); padding: 50px 0; }
.app-list {
    column-count: 2;
    list-style: none;
    padding: 0;
}
.app-list li { margin-bottom: 15px; }

/* Process */
.process-steps {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.step {
    flex-basis: 22%;
    text-align: center;
}

.step span {
    font-size: 2.5rem;
    color: var(--primary-color);
    font-weight: bold;
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 50px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

footer ul { list-style: none; padding: 0; }
footer a { color: var(--white); text-decoration: none; }
.copyright { text-align: center; margin-top: 50px; border-top: 1px solid #444; padding-top: 20px; }