body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #f6fafd 0%, #e9f1fb 100%);
    color: #232b3e;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

header, footer {
    background: #f4f8fb;
    color: #232b3e;
    padding: 1.5rem 0;
    text-align: center;
    border-radius: 0 0 24px 24px;
    box-shadow: 0 4px 24px rgba(78, 154, 241, 0.08);
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

nav a {
    color: #357ab8;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1.2rem;
    border-radius: 10px;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}

nav a:hover {
    background: linear-gradient(90deg, #4e9af1 0%, #1ecbe1 100%);
    color: #fff;
    box-shadow: 0 2px 12px rgba(78,154,241,0.18);
}

main {
    max-width: 900px;
    margin: 2.5rem auto;
    background: #fff;
    padding: 2.5rem 2rem;
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(78, 154, 241, 0.08);
}

h1, h2, h3 {
    font-family: 'Segoe UI', Arial, sans-serif;
    margin-top: 0;
    color: #357ab8;
}

section {
    margin-bottom: 2.5rem;
}

article {
    margin-bottom: 2rem;
    border-bottom: 1px solid #e3e8ee;
    padding-top: 1.2rem;
    padding-bottom: 1.2rem;
    padding-left: 1.2rem;
    border-radius: 16px;
    box-shadow: 0 2px 16px rgba(78, 154, 241, 0.07);
    background: #f9fbfd;
    transition: box-shadow 0.2s, border 0.2s;
}

article:hover {
    box-shadow: 0 8px 32px rgba(78, 154, 241, 0.18);
    border-bottom: 1px solid #4e9af1;
    background-color: rgb(238, 230, 230);
}

.date {
    color: #7b8794;
    font-size: 0.95em;
}

button, .button, input[type="submit"], input[type="button"] {
    background: linear-gradient(90deg, #4e9af1 0%, #1ecbe1 100%);
    color: #fff;
    border: none;
    border-radius: 12px;
    padding: 0.7rem 1.6rem;
    font-size: 1em;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(78, 154, 241, 0.18);
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s, transform 0.1s;
}

button:hover, .button:hover, input[type="submit"]:hover, input[type="button"]:hover {
    background: linear-gradient(90deg, #1ecbe1 0%, #4e9af1 100%);
    box-shadow: 0 8px 32px rgba(78, 154, 241, 0.28);
    transform: translateY(-2px) scale(1.03);
}

footer {
    font-size: 0.95em;
    margin-top: 2rem;
    border-radius: 24px 24px 0 0;
    box-shadow: 0 -4px 24px rgba(78, 154, 241, 0.08);
}