/* Global */
body {
    margin: 0;
    background: #f2f6ff;
    font-family: Arial, sans-serif;
    color: #0f1a33;
}

/* Navigation */
.topbar {
    background: #0f1a33;
    padding: 14px 0;
    text-align: center;
    border-bottom: 4px solid #1e6cff;
}

.topbar a {
    color: #ffffff;
    margin: 0 20px;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
}

.topbar a:hover {
    color: #1e6cff;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 60px 20px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 10px;
    color: #0f1a33;
}

.hero p {
    font-size: 18px;
    color: #1e6cff;
}

/* Highlight Box */
.highlight-box {
    width: 85%;
    max-width: 950px;
    margin: 40px auto;
    padding: 30px;
    background: #ffffff;
    border: 3px solid #1e6cff;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(30, 108, 255, 0.15);
}

.highlight-box h2 {
    font-size: 30px;
    margin-bottom: 25px;
    color: #1e6cff;
    text-align: center;
}

/* Cards inside highlight box */
.highlight-box .card {
    background: #f7faff;
    border: 2px solid #1e6cff;
    padding: 20px;
    margin-bottom: 25px;
    border-radius: 6px;
    box-shadow: 3px 3px 0 #1e6cff;
    transition: 0.2s ease;
}

.highlight-box .card:hover {
    transform: translate(-3px, -3px);
    box-shadow: 6px 6px 0 #1e6cff;
    background: #eef4ff;
}

/* Button Grid */
.link-grid {
    width: 85%;
    max-width: 950px;
    margin: 40px auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.big-button {
    background: #0f1a33;
    color: #ffffff;
    padding: 18px;
    text-align: center;
    text-decoration: none;
    font-weight: bold;
    border: 2px solid #1e6cff;
    border-radius: 6px;
    transition: 0.2s ease;
}

.big-button:hover {
    background: #1e6cff;
    color: #ffffff;
}

/* Timeline (Projects Page) */
.year h2 {
    font-size: 32px;
    color: #1e6cff;
    border-left: 6px solid #0f1a33;
    padding-left: 12px;
    margin-bottom: 25px;
}

.card {
    background: #ffffff;
    border