* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.18), transparent 30%),
        linear-gradient(135deg, #1f2937, #374151, #111827);
    color: #222;
    line-height: 1.6;
}

.page {
    max-width: 900px;
    margin: 50px auto;
    padding: 52px;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

header {
    text-align: center;
    margin-bottom: 42px;
    padding-bottom: 28px;
    border-bottom: 1px solid #ddd;
}

h1 {
    margin: 0;
    font-size: 2.8rem;
    letter-spacing: 0.5px;
    color: #111827;
}

.subtitle {
    margin: 8px 0 4px;
    font-size: 1.25rem;
    color: #4b5563;
}

.tagline {
    margin: 0;
    font-weight: bold;
    color: #374151;
}

section {
    margin-bottom: 34px;
}

h2 {
    margin-top: 0;
    padding-bottom: 6px;
    border-bottom: 2px solid #d1d5db;
    color: #1f2937;
    font-size: 1.45rem;
}

h3 {
    margin-bottom: 2px;
    color: #111827;
}

.organization {
    margin-top: 0;
    font-weight: bold;
    color: #4b5563;
}

ul {
    padding-left: 24px;
}

li {
    margin-bottom: 6px;
}

.skills-list {
    columns: 2;
    column-gap: 42px;
}

a {
    color: #0a66c2;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.button {
    display: inline-block;
    padding: 10px 16px;
    background: #1f2937;
    color: #ffffff;
    border-radius: 6px;
    font-weight: bold;
}

.button:hover {
    background: #374151;
    text-decoration: none;
}

@media (max-width: 700px) {
    .page {
        margin: 0;
        padding: 28px;
        border-radius: 0;
    }

    h1 {
        font-size: 2.2rem;
    }

    .skills-list {
        columns: 1;
    }
}