:root {
    --primary-color: #ff7b00;
    --bg-color: #f6f8fa;
    --card-bg: #ffffff;
    --text-color: #24292e;
    --accent-color: #2dba4e;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

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

header {
    background-color: var(--primary-color);
    color: white;
    padding: 40px 0;
    text-align: center;
    margin-bottom: 40px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.logo {
    max-width: 150px;
    height: auto;
}

.github-logo {
    width: 50px;
    height: 50px;
}

header h1 {
    font-family: 'Kalam', cursive;
    font-size: 3rem;
    margin-bottom: 10px;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.messages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    padding-bottom: 40px;
}

.message-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.2s, box-shadow 0.2s;
    border-top: 5px solid var(--accent-color);
    display: flex;
    flex-direction: column;
}

.message-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
}

.message-content {
    font-family: 'Kalam', cursive;
    font-size: 1.3rem;
    margin-bottom: 20px;
    flex-grow: 1;
    color: #333;
}

.message-author {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
    border-top: 1px solid #eee;
    padding-top: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.message-date {
    font-weight: 400;
    color: #666;
    font-size: 0.8rem;
}

.loading {
    grid-column: 1 / -1;
    text-align: center;
    font-size: 1.5rem;
    color: #666;
    padding: 40px;
}

footer {
    text-align: center;
    padding: 20px;
    color: #666;
    margin-top: auto;
}

/* Cores aleatórias para a borda superior dos cards (será aplicado via JS ou classes auxiliares se quisermos) */
.card-color-1 { border-top-color: #ff7b72; }
.card-color-2 { border-top-color: #d2a8ff; }
.card-color-3 { border-top-color: #79c0ff; }
.card-color-4 { border-top-color: #ffa657; }