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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #e8f4f8 0%, #d4e8ed 50%, #c8dfe6 100%);
    color: #2c3e50;
    min-height: 100vh;
    line-height: 1.6;
}

header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid rgba(100, 150, 170, 0.3);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-size: 1.6rem;
    font-weight: bold;
    background: linear-gradient(135deg, #5a9fb8 0%, #2d5f4d 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.5px;
}

.age-badge {
    display: inline-block;
    background: rgba(90, 159, 184, 0.15);
    border: 2px solid rgba(90, 159, 184, 0.5);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: bold;
    color: #5a9fb8;
    margin-left: 1rem;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

nav a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
    font-weight: 500;
}

nav a:hover {
    color: #5a9fb8;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(212, 232, 237, 0.8) 100%);
    border-radius: 20px;
    margin-bottom: 3rem;
    border: 2px solid rgba(90, 159, 184, 0.3);
    box-shadow: 0 8px 32px rgba(90, 159, 184, 0.15);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "❄";
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2rem;
    color: rgba(90, 159, 184, 0.2);
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: "🌲";
    position: absolute;
    bottom: 30px;
    left: 40px;
    font-size: 1.5rem;
    color: rgba(45, 95, 77, 0.3);
    animation: float 5s ease-in-out infinite 1s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #5a9fb8 0%, #2d5f4d 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    color: #4a6b7c;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, #5a9fb8 0%, #2d5f4d 100%);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(90, 159, 184, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(90, 159, 184, 0.4);
}

.section {
    margin: 3rem 0;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 15px;
    border: 1px solid rgba(90, 159, 184, 0.2);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #5a9fb8;
    font-weight: 600;
}

.section p {
    color: #4a6b7c;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid rgba(90, 159, 184, 0.3);
    border-radius: 15px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    position: relative;
}

.card::before {
    content: "✦";
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 1.2rem;
    color: rgba(90, 159, 184, 0.3);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(90, 159, 184, 0.2);
    border-color: rgba(45, 95, 77, 0.5);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2d5f4d;
    font-weight: 600;
}

.card p {
    color: #5a7a8a;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.card .age-badge {
    margin-left: 0;
    margin-bottom: 1rem;
}

footer {
    background: rgba(255, 255, 255, 0.95);
    border-top: 2px solid rgba(90, 159, 184, 0.3);
    padding: 2rem;
    margin-top: 4rem;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-disclaimer {
    background: rgba(90, 159, 184, 0.15);
    border: 2px solid rgba(90, 159, 184, 0.4);
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    color: #2d5f4d;
    font-size: 0.95rem;
    font-weight: 500;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.footer-links a {
    color: #5a9fb8;
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.footer-links a:hover {
    color: #2d5f4d;
}

.footer-copyright {
    color: #7a8a9a;
    font-size: 0.85rem;
    margin-top: 1rem;
}

.form-container {
    max-width: 500px;
    margin: 2rem auto;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid rgba(90, 159, 184, 0.3);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #4a6b7c;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(90, 159, 184, 0.3);
    border-radius: 8px;
    color: #2c3e50;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #5a9fb8;
    box-shadow: 0 0 10px rgba(90, 159, 184, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.demo-warning {
    background: rgba(90, 159, 184, 0.15);
    border: 2px solid rgba(90, 159, 184, 0.5);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    margin: 2rem 0;
    font-weight: bold;
    color: #2d5f4d;
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }

    nav ul {
        flex-direction: column;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .grid {
        grid-template-columns: 1fr;
    }
}