/* Paleta de colores institucional UMC */
:root {
    --umc-blue: #003366;
    --umc-gold: #c5a059;
    --umc-gold-hover: #b38f4d;
    --error: #d32f2f;
    --bg-gray: #f4f4f4;
    --text-dark: #333333;
}

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: var(--bg-gray);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
}

.form-container {
    background: white;
    padding: 2.5rem;
    border-radius: 4px; /* Estilo más sobrio y académico */
    border-top: 6px solid var(--umc-blue);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 480px;
}

.logo-placeholder {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--umc-blue);
    font-weight: bold;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

h2 { 
    text-align: center; 
    color: var(--umc-blue); 
    margin-bottom: 2rem; 
    font-size: 1.4rem;
    border-bottom: 2px solid var(--umc-gold);
    padding-bottom: 10px;
}

.form-group { margin-bottom: 1.2rem; position: relative; }

.label-main {
    display: block;
    margin-bottom: 6px;
    font-weight: 700;
    color: var(--umc-blue);
    font-size: 0.9rem;
}

.label-main::after {
    content: " *";
    color: var(--error);
}

input[type="text"], 
input[type="email"], 
input[type="date"], 
select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 3px;
    font-size: 15px;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--umc-gold);
    box-shadow: 0 0 5px rgba(197, 160, 89, 0.3);
}

/* Género con estilo UMC */
.radio-group { 
    display: flex; 
    flex-wrap: wrap;
    gap: 10px; 
    padding: 5px 0; 
}

.radio-option { 
    display: flex; 
    align-items: center; 
    gap: 8px; 
    cursor: pointer; 
    font-size: 14px;
    color: var(--text-dark);
    padding: 8px 12px;
    border: 1px solid #eee;
    background: #fafafa;
    border-radius: 3px;
}

.radio-option:hover {
    border-color: var(--umc-gold);
}

button {
    width: 100%;
    padding: 14px;
    background: var(--umc-blue);
    color: white;
    border: none;
    border-radius: 3px;
    font-weight: bold;
    font-size: 1rem;
    text-transform: uppercase;
    cursor: pointer;
    margin-top: 15px;
    transition: background 0.3s;
}

button:hover { background: #002244; }

.boton {
    width: 100%;
    padding: 14px;
    background: var(--umc-blue);
    color: white;
    border: none;
    border-radius: 3px;
    font-weight: bold;
    font-size: 1rem;
    text-transform: uppercase;
    cursor: pointer;
    margin-top: 15px;
    transition: background 0.3s;
}

.boton:hover { background: #002244; }

.error-msg {
    color: var(--error);
    font-size: 11px;
    margin-top: 4px;
    display: none;
    font-weight: 600;
}

input.invalid, select.invalid {
    border-color: var(--error);
    background-color: #fff5f5;
}