/* --- VARIABLES CORPORATIVAS TIBURONES --- */
:root {
    --azul-tiburon: #0A437A;
    --verde-cancha: #1EAA41;
    --naranja-balon: #CD4A24;
    --blanco-fondo: #F4F6F9;
    --blanco-puro: #FFFFFF;
    --gris-oscuro: #212529;
    --gris-suave: #E9ECEF;
}

/* --- REGLAS GENERALES Y LAYOUT --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body.asistencia-layout {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--blanco-fondo);
    color: var(--gris-oscuro);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: 20px 20px 0 20px;
    margin: 0;
}

/* --- CONTENEDOR PRINCIPAL (Tarjeta) --- */
.asistencia-card {
    background: var(--blanco-puro);
    width: 100%;
    max-width: 420px;
    padding: 30px 25px;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.06);
    border-top: 6px solid var(--azul-tiburon);
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--azul-tiburon);
    font-size: 14px;
}

select {
    width: 100%;
    padding: 14px 15px;
    border: 2px solid var(--gris-suave);
    border-radius: 8px;
    font-size: 16px;
    background-color: #f8fafc;
    color: var(--gris-oscuro);
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230A437A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 16px;
    transition: all 0.3s;
}

select:focus {
    border-color: var(--azul-tiburon);
    outline: none;
    box-shadow: 0 0 0 3px rgba(10, 67, 122, 0.1);
}

select:disabled {
    background-color: var(--gris-suave);
    color: #999;
    cursor: not-allowed;
    background-image: none;
}

/* --- CAJA DE APODERADO --- */
.caja-apoderado {
    display: flex;
    align-items: center;
    background-color: #f8fafc;
    border: 2px solid var(--gris-suave);
    border-radius: 8px;
    padding: 12px 15px;
    margin-top: 15px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.caja-apoderado:hover {
    border-color: var(--azul-tiburon);
    background-color: #f1f5f9;
}

.caja-apoderado input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin: 0 12px 0 0;
    cursor: pointer;
    accent-color: var(--naranja-balon);
}

.caja-apoderado label {
    margin: 0 !important;
    color: var(--azul-tiburon) !important;
    font-weight: 600 !important;
    font-size: 14px !important;
    cursor: pointer;
    user-select: none;
}

/* --- BOTÓN DE LLAMADO A LA ACCIÓN --- */
.btn-cta {
    display: inline-block;
    width: 100%;
    background-color: var(--verde-cancha);
    color: var(--blanco-puro);
    padding: 16px;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin-top: 10px;
}

.btn-cta:hover { background-color: #157A2E; }
.btn-cta:active { transform: translateY(2px); }
.btn-cta:disabled { background-color: #a0aec0; cursor: not-allowed; box-shadow: none; transform: none; }

/* --- ALERTAS --- */
.alerta {
    margin-top: 20px;
    font-weight: bold;
    font-size: 14px;
    text-align: center;
    padding: 12px;
    border-radius: 6px;
    display: none;
}
.alerta-info { display: block; background-color: #e6f0fa; color: var(--azul-tiburon); border: 1px solid #b3d4f5; }
.alerta-exito { display: block; background-color: #e6f6ec; color: var(--verde-cancha); border: 1px solid #b3e6c3; }
.alerta-error { display: block; background-color: #feefec; color: var(--naranja-balon); border: 1px solid #fad0c4; }

/* --- PIE DE PÁGINA (Footer y Enlace) --- */
.asistencia-footer {
    width: 100%;
    text-align: center;
    margin-top: auto;
    padding: 25px 0 15px 0;
    color: #718096;
    font-size: 12px;
    line-height: 1.5;
}

.asistencia-footer a {
    color: var(--azul-tiburon);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.2s ease;
}

.asistencia-footer a:hover {
    color: var(--naranja-balon);
    text-decoration: underline;
}