:root {
    --primary-blue: #2196F3;
    --dark-blue: #1976D2;
    --navy: #1e3a5f;
    --light-bg: #bdd8f7;
    --text-main: #333;
    --text-muted: #666;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #ffffff;
    color: var(--text-main);
    line-height: 1.6;
}

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

/* Header & Nav */
header {
    padding: 20px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--navy);
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

.nav-links .login {
    text-decoration: none;
    color: var(--text-main);
    margin-right: 20px;
    font-weight: 500;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, #4CAF50, #2E7D32); /* Keeping original logic? No, let's go Blue */
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
}

.btn-secondary {
    background-color: #90CAF9;
    color: #0D47A1;
}

.btn-dark {
    background-color: #3e7ca5;
    color: white;
}

.btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    padding: 60px 40px; 
    gap: 40px;
    /* Two gradients: one for the top-right corner, one for the bottom-left */
    background: 
        radial-gradient(circle at 90% 10%, #cce4fa 0%, transparent 50%),
        radial-gradient(circle at 10% 90%, #cce4fa 0%, #ffffff 50%);
}

.hero-content h1 {
    font-size: 3rem;
    color: var(--navy);
    margin-bottom: 20px;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.hero-btns {
    display: flex;
    gap: 15px;
}

.hero-image img {
    max-width: 100%;
    border-radius: 20px;
}

/* Features Cards */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: -40px;
    padding-bottom: 60px;
}

.card {
    /* Soft blue-white tint for the card background */
    background: #fdfeff; 
    padding: 30px;
    border-radius: 20px;
    
    /* Prominent multi-layered shadow: 
       1. A soft spread (0 15px 50px) 
       2. A slight blue tint in the shadow itself (rgba(33, 150, 243, 0.1)) */
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1), 
                0 4px 15px rgba(33, 150, 243, 0.05);
    
    /* A light blue border to define the shape */
    border: 1px solid rgba(14, 14, 15, 0.5); 
    
    text-align: left;
    background: 
        radial-gradient(circle at 90% 10%, #cce4fa 0%, transparent 50%),
         radial-gradient(circle at 10% 90%, #cce4fa 0%, #ffffff 50%);
}

.card:hover {
    /* Optional: subtle lift when hovering */
    transform: translateY(-5px);
}

.card .icon {
    font-size: 2rem;
    margin-bottom: 15px;
}

.card h3 {
    margin-bottom: 10px;
    color: var(--navy);
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }
    .hero-btns {
        justify-content: center;
    }
    .hero-content h1 {
        font-size: 2.2rem;
    }
}