:root {
    --primary-color: #6a9ae2; /* Soft calming blue */
    --secondary-color: #f7f9fc; /* Very light cool gray */
    --accent-color: #ff9f43; /* Warm accent */
    --text-color: #333333;
    --text-light: #666666;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --radius: 8px;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--secondary-color);
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--white);
    padding: 20px 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, #f7f9fc 0%, #eef2f7 100%);
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #2c3e50;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 40px;
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(106, 154, 226, 0.3);
    background-color: #5a8bd6;
}

.features {
    padding: 80px 0;
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.feature-card {
    padding: 30px;
    border-radius: var(--radius);
    background-color: var(--secondary-color);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card h3 {
    font-family: var(--font-heading);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.cta-section {
    padding: 80px 0;
    text-align: center;
    background-color: var(--primary-color);
    color: var(--white);
}

.cta-section h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-section p {
    margin-bottom: 30px;
    opacity: 0.9;
}

.signup-form {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    gap: 10px;
    background: rgba(255, 255, 255, 0.2);
    padding: 10px;
    border-radius: var(--radius);
}

.signup-form input[type="email"] {
    flex: 1;
    padding: 15px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    font-size: 1rem;
    outline: none;
    background: var(--white);
}

.signup-form button {
    background-color: var(--accent-color);
    color: var(--white);
    border: none;
    padding: 0 30px;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.signup-form button:hover {
    background-color: #e68a30;
}

footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 40px 0;
    text-align: center;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-content {
    animation: fadeIn 0.8s ease-out;
}

#message {
    margin-top: 15px;
    padding: 10px;
    border-radius: var(--radius);
    display: none;
    font-weight: 500;
}

#message.success {
    background-color: rgba(46, 204, 113, 0.2);
    color: #27ae60;
    display: block;
}

#message.error {
    background-color: rgba(231, 76, 60, 0.2);
    color: #c0392b;
    display: block;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .signup-form { flex-direction: column; }
    .signup-form button { padding: 15px; }
}