body {
    display: flex;
    margin: 0;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: #f0f4f8;
}

body.scroll-layout {
    align-items: flex-start;
    padding: 30px 0;
}

.formulario {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.09);
    border-radius: 20px;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    min-width: 400px;
    min-height: auto;
    padding: 40px 40px 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.formulario.formulario-registro {
    width: 560px;
}

h2 {
    font-size: 22px;
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 6px;
    text-align: center;
}

.subtitulo {
    color: #475569;
    font-size: 13px;
    margin-bottom: 10px;
    text-align: center;
}

.seccion-label {
    display: block;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #94a3b8;
    margin-top: 28px;
    margin-bottom: -6px;
    width: 100%;
}

.campo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-top: 24px;
    width: 100%;
}

.campo label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: #64748b;
    margin-bottom: 6px;
}

.campo input,
.campo select {
    width: 100%;
    min-width: 320px;
    min-height: 36px;
    background-color: #f8fafc;
    border: 1px solid rgba(15, 23, 42, 0.1);
    border-radius: 8px;
    font-size: 13px;
    font-family: inherit;
    color: #0f172a;
    padding: 0 12px;
    box-sizing: border-box;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}

.campo input:hover,
.campo select:hover {
    background-color: #ffffff;
    border-color: rgba(15, 23, 42, 0.18);
}

.campo input:focus,
.campo select:focus {
    background-color: #ffffff;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px #dbeafe;
}

.iniciar {
    display: block;
    min-height: 40px;
    min-width: 280px;
    margin: 32px auto 0;
    padding: 0 24px;
    background: #2563eb;
    color: #ffffff;
    border: none;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s, transform 0.15s;
}

.iniciar:hover {
    background: #1d4ed8;
    transform: scale(1.02);
}

#registro-exitoso {
    background: #d1fae5;
    color: #065f46;
    border-radius: 8px;
    padding: 12px 16px;
    margin-top: 18px;
    font-size: 13px;
    text-align: center;
    line-height: 1.5;
    width: 100%;
    box-sizing: border-box;
}

#error-mensaje {
    color: #dc2626;
    margin-top: 12px;
    font-size: 13px;
    text-align: center;
    width: 100%;
}

.link-cuenta,
.link-sesion {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
    color: #475569;
    width: 100%;
}

.link-cuenta a,
.link-sesion a {
    color: #2563eb;
    text-decoration: none;
    font-weight: 600;
}

.link-cuenta a:hover,
.link-sesion a:hover {
    text-decoration: underline;
}