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

/* Body */
body {
    font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
    background: #f3f4f6;
    color: #1f2933;
}

/* Header */
.header {
    background: linear-gradient(135deg, #16a34a, #22c55e);
    color: #ffffff;
    text-align: center;
    padding: 30px 20px;
}

.header h1 {
    margin-top: 10px;
    font-size: 28px;
}

.header p {
    margin-top: 8px;
    font-size: 14px;
    opacity: 0.95;
}

/* Logo */
.logo {
    width: 120px;
    height: auto;
}

/* Contenedor principal */
.container {
    max-width: 1100px;
    margin: 40px auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
}

/* Cards */
.card {
    background: #ffffff;
    border-radius: 12px;
    padding: 30px 25px;
    text-align: center;
    text-decoration: none;
    color: #1f2933;
    box-shadow: 0 6px 12px rgba(0,0,0,0.08);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 14px 28px rgba(0,0,0,0.15);
}

/* Iconos */
.icon {
    font-size: 50px;
    margin-bottom: 15px;
}

/* Texto */
.card h2 {
    font-size: 20px;
    margin-bottom: 10px;
}

.card p {
    font-size: 14px;
    color: #4b5563;
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px;
    font-size: 13px;
    color: #6b7280;
}