/* Base styles for the landing page */
:root {
    --primary-color: #10724f;
    --secondary-color: #f8f9fa;
    --text-color: #333;
    --light-text: #666;
    --accent-color: #24b47e;
    --border-radius: 8px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Montserrat', sans-serif;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--text-color);
    position: relative;
    overflow-x: hidden;
    font-size: 15px;
}

/* Legacy styles for backward compatibility */
#title {
    font-size: 3.2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.7rem;
}

.icon-container {
    display: flex;
    justify-content: center;
    gap: 2.2rem;
    margin: 1.25rem 0;
}

.icon-container div {
    text-align: center;
}

.icon-container svg {
    width: 2rem;
    height: 2rem;
    color: var(--primary-color);
}

.icon-container div a {
    text-decoration: none;
    color: inherit;
    display: inline-block;
    transition: transform 0.3s;
}

.icon-container div a:hover {
    transform: scale(1.1);
}

/* Flag selection styles */
.language-selection {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    margin-top: 1.25rem;
}

.flag-button {
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s;
}

.flag-button:hover {
    transform: scale(1.05);
}

.flag {
    width: 90px;
    height: 60px;
    background-size: cover;
    border-radius: 4px;
    box-shadow: var(--shadow);
}

.flag-us {
    background-image: url('../images/flag-us.png');
}

.flag-br {
    background-image: url('../images/flag-br.png');
}

/* New styles for the enhanced design */
.landing-container {
    max-width: 1120px;
    width: 100%;
    padding: 1.25rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    margin: 0 auto;
}

.logo-container {
    text-align: center;
    margin-bottom: 0.5rem;
}

.logo-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.logo-subtitle {
    font-size: 1rem;
    color: var(--light-text);
    margin-top: 0.4rem;
    font-weight: 400;
    max-width: 600px;
    text-align: center;
}

.logo-acronym {
    font-size: 0.85rem;
    color: var(--accent-color);
    letter-spacing: 1px;
    margin-top: 0.3rem;
    font-weight: 500;
}

.features-container {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    margin: 1.25rem 0;
    flex-wrap: wrap;
}

.feature-card {
    background-color: white;
    padding: 1.1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    width: 240px;
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.feature-title {
    font-weight: 600;
    margin-bottom: 0.35rem;
    font-size: 1rem;
}

.feature-description {
    color: var(--light-text);
    font-size: 0.8rem;
    line-height: 1.5;
}

.actions-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-top: 0.6rem;
}

.language-prompt {
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.flag-label {
    font-weight: 500;
    margin-top: 0.3rem;
    font-size: 0.85rem;
}

.additional-links {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.link-button {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.6rem 0.9rem;
    background-color: white;
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    box-shadow: var(--shadow);
    transition: var(--transition);
    font-size: 0.85rem;
}

.link-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
    color: var(--primary-color);
}

.link-icon {
    color: var(--primary-color);
}

.footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--light-text);
    font-size: 0.75rem;
}

.citation-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.6rem 1.1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
}

.citation-button:hover {
    background-color: #0d5f42;
    transform: translateY(-2px);
}

.decorative-circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    opacity: 0.05;
    z-index: -1;
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    left: -100px;
    animation: float 8s ease-in-out infinite;
}

.circle-2 {
    width: 500px;
    height: 500px;
    bottom: -200px;
    right: -200px;
    animation: float 10s ease-in-out infinite alternate;
}

@media (max-width: 768px) {
    .logo-title {
        font-size: 3rem;
    }
    
    .language-selection {
        flex-direction: column;
    }
    
    .flag-button {
        width: 120px;
    }
    
    .flag {
        width: 80px;
        height: 53px;
    }
    
    .additional-links {
        flex-direction: column;
    }
    
    .icon-container {
        gap: 1rem;
    }
}

/* Add animation for decorative circles */
@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0);
    }
}