:root {
    --primary: #4CAF50;
    --primary-dark: #3e8e41;
    --secondary: #f8f9fa;
    --text: #333;
    --light: #fff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Instrument Sans', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.welcome-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
}

.welcome-card {
    background: var(--light);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--shadow);
    max-width: 500px;
    width: 100%;
    margin-bottom: 2rem;
}

.app-logo {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.welcome-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary);
    font-weight: 600;
}

.welcome-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #666;
}

.btn-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--light);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--light);
    transform: translateY(-2px);
}

.features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.feature {
    text-align: center;
    max-width: 200px;
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.feature h3 {
    margin-bottom: 0.5rem;
    color: var(--text);
}

.feature p {
    color: #666;
    font-size: 0.9rem;
}

footer {
    background-color: var(--primary);
    color: var(--light);
    text-align: center;
    padding: 1.5rem;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.app-name {
    font-size: 1.2rem;
    font-weight: 600;
}

.copyright {
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .welcome-card {
        padding: 2rem;
        margin: 1rem;
    }

    .welcome-title {
        font-size: 2rem;
    }

    .btn-group {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .features {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.welcome-card {
    animation: fadeInUp 0.8s ease-out;
}

.feature {
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.feature:nth-child(1) { animation-delay: 0.2s; }
.feature:nth-child(2) { animation-delay: 0.4s; }
.feature:nth-child(3) { animation-delay: 0.6s; }