/* ===== Reset básico ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    }

/* ===== Estilos generales ===== */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4ecf7 100%);
    color: #1a1a1a;
    line-height: 1.65;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 60px 20px;
    }

/* ===== Tarjeta principal ===== */
.card {
    background: #ffffff;
    max-width: 720px;
    width: 100%;
    padding: 48px 44px;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid #eaeaea;
    }

/* ===== Encabezado ===== */
header {
    text-align: center;
    margin-bottom: 36px;
    }

.profile-pic {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #ffffff;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
    background: #eee;
    }

h1 {
    font-size: 2.2em;
    letter-spacing: -0.5px;
    margin-bottom: 6px;
    color: #111;
    }

.subtitle {
    font-size: 1.1em;
    color: #666;
    margin-bottom: 0;
    }

/* ===== Secciones ===== */
h2 {
    font-size: 1.15em;
    margin: 32px 0 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid #e5e5e5;
    color: #111;
    }

/* ===== Listas ===== */
ul {
    list-style: none;
    }

li {
    padding: 6px 0;
    display: flex;
    align-items: center;
    color: #333;
    }

li::before {
    content: "▸";
    color: #4a90e2;
    margin-right: 10px;
    font-size: 0.9em;
    }

/* ===== Pie ===== */
footer {
    margin-top: 45px;
    font-size: 0.85em;
    color: #999;
    border-top: 1px solid #eee;
    padding-top: 15px;
    text-align: center;
    }

/* ===== Responsive ===== */
@media (max-width: 600px) {
    body {
        padding: 24px 12px;
    }
    .card {
        padding: 32px 22px;
    }
    h1 {
        font-size: 1.7em;
    }
    .profile-pic {
        width: 110px;
        height: 110px;
    }
    }