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

html {
    scroll-behavior: smooth;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #333333;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

/* Typography & Buttons */
h1 { font-size: 2.5rem; line-height: 1.2; margin-bottom: 1rem; color: firebrick; }
h2 { font-size: 2rem; margin-bottom: 1rem; }
p { font-size: 1.1rem; color: #555555; margin-bottom: 1.5rem; }

.btn-primary, .btn-secondary, .btn-nav {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.2s ease-in-out;
}

.btn-primary { background: firebrick; color: #ffffff; }
.btn-primary:hover { background: firebrick; }
.btn-secondary { background: #ffffff; color: firebrick; }
.btn-secondary:hover { background: #f0f7ff; }

/* Navbar Layout */
.navbar {
    background: #ffffff;
    padding: 1rem 0;
    border-bottom: 1px solid #eaeaea;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: #111111;
    text-decoration: none;
}

.btn-nav {
    padding: 0.5rem 1rem;
    background: #111111;
    color: #ffffff;
    font-size: 0.9rem;
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    background: #fafafa;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
}

.mock-ui {
    background: white;
    border: 2px #cbd5e1;
    border-radius: 11px;
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #64748b;
    font-weight: 500;
}

/* Features Component */
.features {
    padding: 5rem 0;
    text-align: center;
}

.section-title { margin-bottom: 3rem; }

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.card {
    background: #ffffff;
    padding: 2.5rem 1.5rem;
    border: 1px solid #eaeaea;
    border-radius: 2px;
    text-align: left;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.card h3 { margin-bottom: 0.5rem; text-align: center; font-size: 1.3rem; }

/* Call To Action Block */
.cta-section {
    background: firebrick;
    color: #ffffff;
    padding: 5rem 0;
    text-align: center;
}

.cta-section h2 { color: #ffffff; }
.cta-section p { color: #e1effe; }

/* Footer Elements */
.footer {
    text-align: center;
    padding: 2rem 0;
    font-size: 0.9rem;
    color: firebrick;
    border-top: 1px solid #eaeaea;
}

/* Tablet & Desktop Optimization (Media Queries) */
@media (min-width: 768px) {
    h1 { font-size: 3.5rem; }
    
    .hero { padding: 6rem 0; }
    .hero-grid { grid-template-columns: 1fr 1fr; }
    .mock-ui { height: 350px; }

    .features-grid { grid-template-columns: repeat(3, 1fr); }
}